ECS / Client / register_task_definition
register_task_definition#
- ECS.Client.register_task_definition(**kwargs)#
Registers a new task definition from the supplied
family
andcontainerDefinitions
. Optionally, you can add data volumes to your containers with thevolumes
parameter. For more information about task definition parameters and defaults, see Amazon ECS Task Definitions in the Amazon Elastic Container Service Developer Guide.You can specify a role for your task with the
taskRoleArn
parameter. When you specify a role for a task, its containers can then use the latest versions of the CLI or SDKs to make API requests to the Amazon Web Services services that are specified in the policy that’s associated with the role. For more information, see IAM Roles for Tasks in the Amazon Elastic Container Service Developer Guide.You can specify a Docker networking mode for the containers in your task definition with the
networkMode
parameter. The available network modes correspond to those described in Network settings in the Docker run reference. If you specify theawsvpc
network mode, the task is allocated an elastic network interface, and you must specify a NetworkConfiguration when you create a service or run a task with the task definition. For more information, see Task Networking in the Amazon Elastic Container Service Developer Guide.See also: AWS API Documentation
Request Syntax
response = client.register_task_definition( family='string', taskRoleArn='string', executionRoleArn='string', networkMode='bridge'|'host'|'awsvpc'|'none', containerDefinitions=[ { 'name': 'string', 'image': 'string', 'repositoryCredentials': { 'credentialsParameter': 'string' }, 'cpu': 123, 'memory': 123, 'memoryReservation': 123, 'links': [ 'string', ], 'portMappings': [ { 'containerPort': 123, 'hostPort': 123, 'protocol': 'tcp'|'udp', 'name': 'string', 'appProtocol': 'http'|'http2'|'grpc', 'containerPortRange': 'string' }, ], 'essential': True|False, 'entryPoint': [ 'string', ], 'command': [ 'string', ], 'environment': [ { 'name': 'string', 'value': 'string' }, ], 'environmentFiles': [ { 'value': 'string', 'type': 's3' }, ], 'mountPoints': [ { 'sourceVolume': 'string', 'containerPath': 'string', 'readOnly': True|False }, ], 'volumesFrom': [ { 'sourceContainer': 'string', 'readOnly': True|False }, ], 'linuxParameters': { 'capabilities': { 'add': [ 'string', ], 'drop': [ 'string', ] }, 'devices': [ { 'hostPath': 'string', 'containerPath': 'string', 'permissions': [ 'read'|'write'|'mknod', ] }, ], 'initProcessEnabled': True|False, 'sharedMemorySize': 123, 'tmpfs': [ { 'containerPath': 'string', 'size': 123, 'mountOptions': [ 'string', ] }, ], 'maxSwap': 123, 'swappiness': 123 }, 'secrets': [ { 'name': 'string', 'valueFrom': 'string' }, ], 'dependsOn': [ { 'containerName': 'string', 'condition': 'START'|'COMPLETE'|'SUCCESS'|'HEALTHY' }, ], 'startTimeout': 123, 'stopTimeout': 123, 'hostname': 'string', 'user': 'string', 'workingDirectory': 'string', 'disableNetworking': True|False, 'privileged': True|False, 'readonlyRootFilesystem': True|False, 'dnsServers': [ 'string', ], 'dnsSearchDomains': [ 'string', ], 'extraHosts': [ { 'hostname': 'string', 'ipAddress': 'string' }, ], 'dockerSecurityOptions': [ 'string', ], 'interactive': True|False, 'pseudoTerminal': True|False, 'dockerLabels': { 'string': 'string' }, 'ulimits': [ { 'name': 'core'|'cpu'|'data'|'fsize'|'locks'|'memlock'|'msgqueue'|'nice'|'nofile'|'nproc'|'rss'|'rtprio'|'rttime'|'sigpending'|'stack', 'softLimit': 123, 'hardLimit': 123 }, ], 'logConfiguration': { 'logDriver': 'json-file'|'syslog'|'journald'|'gelf'|'fluentd'|'awslogs'|'splunk'|'awsfirelens', 'options': { 'string': 'string' }, 'secretOptions': [ { 'name': 'string', 'valueFrom': 'string' }, ] }, 'healthCheck': { 'command': [ 'string', ], 'interval': 123, 'timeout': 123, 'retries': 123, 'startPeriod': 123 }, 'systemControls': [ { 'namespace': 'string', 'value': 'string' }, ], 'resourceRequirements': [ { 'value': 'string', 'type': 'GPU'|'InferenceAccelerator' }, ], 'firelensConfiguration': { 'type': 'fluentd'|'fluentbit', 'options': { 'string': 'string' } }, 'credentialSpecs': [ 'string', ] }, ], volumes=[ { 'name': 'string', 'host': { 'sourcePath': 'string' }, 'dockerVolumeConfiguration': { 'scope': 'task'|'shared', 'autoprovision': True|False, 'driver': 'string', 'driverOpts': { 'string': 'string' }, 'labels': { 'string': 'string' } }, 'efsVolumeConfiguration': { 'fileSystemId': 'string', 'rootDirectory': 'string', 'transitEncryption': 'ENABLED'|'DISABLED', 'transitEncryptionPort': 123, 'authorizationConfig': { 'accessPointId': 'string', 'iam': 'ENABLED'|'DISABLED' } }, 'fsxWindowsFileServerVolumeConfiguration': { 'fileSystemId': 'string', 'rootDirectory': 'string', 'authorizationConfig': { 'credentialsParameter': 'string', 'domain': 'string' } } }, ], placementConstraints=[ { 'type': 'memberOf', 'expression': 'string' }, ], requiresCompatibilities=[ 'EC2'|'FARGATE'|'EXTERNAL', ], cpu='string', memory='string', tags=[ { 'key': 'string', 'value': 'string' }, ], pidMode='host'|'task', ipcMode='host'|'task'|'none', proxyConfiguration={ 'type': 'APPMESH', 'containerName': 'string', 'properties': [ { 'name': 'string', 'value': 'string' }, ] }, inferenceAccelerators=[ { 'deviceName': 'string', 'deviceType': 'string' }, ], ephemeralStorage={ 'sizeInGiB': 123 }, runtimePlatform={ 'cpuArchitecture': 'X86_64'|'ARM64', 'operatingSystemFamily': 'WINDOWS_SERVER_2019_FULL'|'WINDOWS_SERVER_2019_CORE'|'WINDOWS_SERVER_2016_FULL'|'WINDOWS_SERVER_2004_CORE'|'WINDOWS_SERVER_2022_CORE'|'WINDOWS_SERVER_2022_FULL'|'WINDOWS_SERVER_20H2_CORE'|'LINUX' } )
- Parameters:
family (string) –
[REQUIRED]
You must specify a
family
for a task definition. You can use it track multiple versions of the same task definition. Thefamily
is used as a name for your task definition. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed.taskRoleArn (string) – The short name or full Amazon Resource Name (ARN) of the IAM role that containers in this task can assume. All containers in this task are granted the permissions that are specified in this role. For more information, see IAM Roles for Tasks in the Amazon Elastic Container Service Developer Guide.
executionRoleArn (string) – The Amazon Resource Name (ARN) of the task execution role that grants the Amazon ECS container agent permission to make Amazon Web Services API calls on your behalf. The task execution IAM role is required depending on the requirements of your task. For more information, see Amazon ECS task execution IAM role in the Amazon Elastic Container Service Developer Guide.
networkMode (string) –
The Docker networking mode to use for the containers in the task. The valid values are
none
,bridge
,awsvpc
, andhost
. If no network mode is specified, the default isbridge
.For Amazon ECS tasks on Fargate, the
awsvpc
network mode is required. For Amazon ECS tasks on Amazon EC2 Linux instances, any network mode can be used. For Amazon ECS tasks on Amazon EC2 Windows instances,<default>
orawsvpc
can be used. If the network mode is set tonone
, you cannot specify port mappings in your container definitions, and the tasks containers do not have external connectivity. Thehost
andawsvpc
network modes offer the highest networking performance for containers because they use the EC2 network stack instead of the virtualized network stack provided by thebridge
mode.With the
host
andawsvpc
network modes, exposed container ports are mapped directly to the corresponding host port (for thehost
network mode) or the attached elastic network interface port (for theawsvpc
network mode), so you cannot take advantage of dynamic host port mappings.Warning
When using the
host
network mode, you should not run containers using the root user (UID 0). It is considered best practice to use a non-root user.If the network mode is
awsvpc
, the task is allocated an elastic network interface, and you must specify a NetworkConfiguration value when you create a service or run a task with the task definition. For more information, see Task Networking in the Amazon Elastic Container Service Developer Guide.If the network mode is
host
, you cannot run multiple instantiations of the same task on a single container instance when port mappings are used.For more information, see Network settings in the Docker run reference.
containerDefinitions (list) –
[REQUIRED]
A list of container definitions in JSON format that describe the different containers that make up your task.
(dict) –
Container definitions are used in task definitions to describe the different containers that are launched as part of a task.
name (string) –
The name of a container. If you’re linking multiple containers together in a task definition, the
name
of one container can be entered in thelinks
of another container to connect the containers. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed. This parameter maps toname
in the Create a container section of the Docker Remote API and the--name
option to docker run.image (string) –
The image used to start a container. This string is passed directly to the Docker daemon. By default, images in the Docker Hub registry are available. Other repositories are specified with either
repository-url/image:tag
orrepository-url/image@digest ``. Up to 255 letters (uppercase and lowercase), numbers, hyphens, underscores, colons, periods, forward slashes, and number signs are allowed. This parameter maps to ``Image
in the Create a container section of the Docker Remote API and theIMAGE
parameter of docker run.When a new task starts, the Amazon ECS container agent pulls the latest version of the specified image and tag for the container to use. However, subsequent updates to a repository image aren’t propagated to already running tasks.
Images in Amazon ECR repositories can be specified by either using the full
registry/repository:tag
orregistry/repository@digest
. For example,012345678910.dkr.ecr.<region-name>.amazonaws.com/<repository-name>:latest
or012345678910.dkr.ecr.<region-name>.amazonaws.com/<repository-name>@sha256:94afd1f2e64d908bc90dbca0035a5b567EXAMPLE
.Images in official repositories on Docker Hub use a single name (for example,
ubuntu
ormongo
).Images in other repositories on Docker Hub are qualified with an organization name (for example,
amazon/amazon-ecs-agent
).Images in other online repositories are qualified further by a domain name (for example,
quay.io/assemblyline/ubuntu
).
repositoryCredentials (dict) –
The private repository authentication credentials to use.
credentialsParameter (string) – [REQUIRED]
The Amazon Resource Name (ARN) of the secret containing the private repository credentials.
Note
When you use the Amazon ECS API, CLI, or Amazon Web Services SDK, if the secret exists in the same Region as the task that you’re launching then you can use either the full ARN or the name of the secret. When you use the Amazon Web Services Management Console, you must specify the full ARN of the secret.
cpu (integer) –
The number of
cpu
units reserved for the container. This parameter maps toCpuShares
in the Create a container section of the Docker Remote API and the--cpu-shares
option to docker run.This field is optional for tasks using the Fargate launch type, and the only requirement is that the total amount of CPU reserved for all containers within a task be lower than the task-level
cpu
value.Note
You can determine the number of CPU units that are available per EC2 instance type by multiplying the vCPUs listed for that instance type on the Amazon EC2 Instances detail page by 1,024.
Linux containers share unallocated CPU units with other containers on the container instance with the same ratio as their allocated amount. For example, if you run a single-container task on a single-core instance type with 512 CPU units specified for that container, and that’s the only task running on the container instance, that container could use the full 1,024 CPU unit share at any given time. However, if you launched another copy of the same task on that container instance, each task is guaranteed a minimum of 512 CPU units when needed. Moreover, each container could float to higher CPU usage if the other container was not using it. If both tasks were 100% active all of the time, they would be limited to 512 CPU units.
On Linux container instances, the Docker daemon on the container instance uses the CPU value to calculate the relative CPU share ratios for running containers. For more information, see CPU share constraint in the Docker documentation. The minimum valid CPU share value that the Linux kernel allows is 2. However, the CPU parameter isn’t required, and you can use CPU values below 2 in your container definitions. For CPU values below 2 (including null), the behavior varies based on your Amazon ECS container agent version:
Agent versions less than or equal to 1.1.0: Null and zero CPU values are passed to Docker as 0, which Docker then converts to 1,024 CPU shares. CPU values of 1 are passed to Docker as 1, which the Linux kernel converts to two CPU shares.
Agent versions greater than or equal to 1.2.0: Null, zero, and CPU values of 1 are passed to Docker as 2.
On Windows container instances, the CPU limit is enforced as an absolute limit, or a quota. Windows containers only have access to the specified amount of CPU that’s described in the task definition. A null or zero CPU value is passed to Docker as
0
, which Windows interprets as 1% of one CPU.memory (integer) –
The amount (in MiB) of memory to present to the container. If your container attempts to exceed the memory specified here, the container is killed. The total amount of memory reserved for all containers within a task must be lower than the task
memory
value, if one is specified. This parameter maps toMemory
in the Create a container section of the Docker Remote API and the--memory
option to docker run.If using the Fargate launch type, this parameter is optional.
If using the EC2 launch type, you must specify either a task-level memory value or a container-level memory value. If you specify both a container-level
memory
andmemoryReservation
value,memory
must be greater thanmemoryReservation
. If you specifymemoryReservation
, then that value is subtracted from the available memory resources for the container instance where the container is placed. Otherwise, the value ofmemory
is used.The Docker 20.10.0 or later daemon reserves a minimum of 6 MiB of memory for a container. So, don’t specify less than 6 MiB of memory for your containers.
The Docker 19.03.13-ce or earlier daemon reserves a minimum of 4 MiB of memory for a container. So, don’t specify less than 4 MiB of memory for your containers.
memoryReservation (integer) –
The soft limit (in MiB) of memory to reserve for the container. When system memory is under heavy contention, Docker attempts to keep the container memory to this soft limit. However, your container can consume more memory when it needs to, up to either the hard limit specified with the
memory
parameter (if applicable), or all of the available memory on the container instance, whichever comes first. This parameter maps toMemoryReservation
in the Create a container section of the Docker Remote API and the--memory-reservation
option to docker run.If a task-level memory value is not specified, you must specify a non-zero integer for one or both of
memory
ormemoryReservation
in a container definition. If you specify both,memory
must be greater thanmemoryReservation
. If you specifymemoryReservation
, then that value is subtracted from the available memory resources for the container instance where the container is placed. Otherwise, the value ofmemory
is used.For example, if your container normally uses 128 MiB of memory, but occasionally bursts to 256 MiB of memory for short periods of time, you can set a
memoryReservation
of 128 MiB, and amemory
hard limit of 300 MiB. This configuration would allow the container to only reserve 128 MiB of memory from the remaining resources on the container instance, but also allow the container to consume more memory resources when needed.The Docker 20.10.0 or later daemon reserves a minimum of 6 MiB of memory for a container. So, don’t specify less than 6 MiB of memory for your containers.
The Docker 19.03.13-ce or earlier daemon reserves a minimum of 4 MiB of memory for a container. So, don’t specify less than 4 MiB of memory for your containers.
links (list) –
The
links
parameter allows containers to communicate with each other without the need for port mappings. This parameter is only supported if the network mode of a task definition isbridge
. Thename:internalName
construct is analogous toname:alias
in Docker links. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed. For more information about linking Docker containers, go to Legacy container links in the Docker documentation. This parameter maps toLinks
in the Create a container section of the Docker Remote API and the--link
option to docker run.Note
This parameter is not supported for Windows containers.
Warning
Containers that are collocated on a single container instance may be able to communicate with each other without requiring links or host port mappings. Network isolation is achieved on the container instance using security groups and VPC settings.
(string) –
portMappings (list) –
The list of port mappings for the container. Port mappings allow containers to access ports on the host container instance to send or receive traffic.
For task definitions that use the
awsvpc
network mode, only specify thecontainerPort
. ThehostPort
can be left blank or it must be the same value as thecontainerPort
.Port mappings on Windows use the
NetNAT
gateway address rather thanlocalhost
. There’s no loopback for port mappings on Windows, so you can’t access a container’s mapped port from the host itself.This parameter maps to
PortBindings
in the Create a container section of the Docker Remote API and the--publish
option to docker run. If the network mode of a task definition is set tonone
, then you can’t specify port mappings. If the network mode of a task definition is set tohost
, then host ports must either be undefined or they must match the container port in the port mapping.Note
After a task reaches the
RUNNING
status, manual and automatic host and container port assignments are visible in the Network Bindings section of a container description for a selected task in the Amazon ECS console. The assignments are also visible in thenetworkBindings
section DescribeTasks responses.(dict) –
Port mappings allow containers to access ports on the host container instance to send or receive traffic. Port mappings are specified as part of the container definition.
If you use containers in a task with the
awsvpc
orhost
network mode, specify the exposed ports usingcontainerPort
. ThehostPort
can be left blank or it must be the same value as thecontainerPort
.Most fields of this parameter (
containerPort
,hostPort
,protocol
) maps toPortBindings
in the Create a container section of the Docker Remote API and the--publish
option to docker run. If the network mode of a task definition is set tohost
, host ports must either be undefined or match the container port in the port mapping.Note
You can’t expose the same container port for multiple protocols. If you attempt this, an error is returned.
After a task reaches the
RUNNING
status, manual and automatic host and container port assignments are visible in thenetworkBindings
section of DescribeTasks API responses.containerPort (integer) –
The port number on the container that’s bound to the user-specified or automatically assigned host port.
If you use containers in a task with the
awsvpc
orhost
network mode, specify the exposed ports usingcontainerPort
.If you use containers in a task with the
bridge
network mode and you specify a container port and not a host port, your container automatically receives a host port in the ephemeral port range. For more information, seehostPort
. Port mappings that are automatically assigned in this way do not count toward the 100 reserved ports limit of a container instance.hostPort (integer) –
The port number on the container instance to reserve for your container.
If you specify a
containerPortRange
, leave this field empty and the value of thehostPort
is set as follows:For containers in a task with the
awsvpc
network mode, thehostPort
is set to the same value as thecontainerPort
. This is a static mapping strategy.For containers in a task with the
bridge
network mode, the Amazon ECS agent finds open ports on the host and automatically binds them to the container ports. This is a dynamic mapping strategy.
If you use containers in a task with the
awsvpc
orhost
network mode, thehostPort
can either be left blank or set to the same value as thecontainerPort
.If you use containers in a task with the
bridge
network mode, you can specify a non-reserved host port for your container port mapping, or you can omit thehostPort
(or set it to0
) while specifying acontainerPort
and your container automatically receives a port in the ephemeral port range for your container instance operating system and Docker version.The default ephemeral port range for Docker version 1.6.0 and later is listed on the instance under
/proc/sys/net/ipv4/ip_local_port_range
. If this kernel parameter is unavailable, the default ephemeral port range from 49153 through 65535 (Linux) or 49152 through 65535 (Windows) is used. Do not attempt to specify a host port in the ephemeral port range as these are reserved for automatic assignment. In general, ports below 32768 are outside of the ephemeral port range.The default reserved ports are 22 for SSH, the Docker ports 2375 and 2376, and the Amazon ECS container agent ports 51678-51680. Any host port that was previously specified in a running task is also reserved while the task is running. That is, after a task stops, the host port is released. The current reserved ports are displayed in the
remainingResources
of DescribeContainerInstances output. A container instance can have up to 100 reserved ports at a time. This number includes the default reserved ports. Automatically assigned ports aren’t included in the 100 reserved ports quota.protocol (string) –
The protocol used for the port mapping. Valid values are
tcp
andudp
. The default istcp
.name (string) –
The name that’s used for the port mapping. This parameter only applies to Service Connect. This parameter is the name that you use in the
serviceConnectConfiguration
of a service. The name can include up to 64 characters. The characters can include lowercase letters, numbers, underscores (_), and hyphens (-). The name can’t start with a hyphen.For more information, see Service Connect in the Amazon Elastic Container Service Developer Guide.
appProtocol (string) –
The application protocol that’s used for the port mapping. This parameter only applies to Service Connect. We recommend that you set this parameter to be consistent with the protocol that your application uses. If you set this parameter, Amazon ECS adds protocol-specific connection handling to the Service Connect proxy. If you set this parameter, Amazon ECS adds protocol-specific telemetry in the Amazon ECS console and CloudWatch.
If you don’t set a value for this parameter, then TCP is used. However, Amazon ECS doesn’t add protocol-specific telemetry for TCP.
Tasks that run in a namespace can use short names to connect to services in the namespace. Tasks can connect to services across all of the clusters in the namespace. Tasks connect through a managed proxy container that collects logs and metrics for increased visibility. Only the tasks that Amazon ECS services create are supported with Service Connect. For more information, see Service Connect in the Amazon Elastic Container Service Developer Guide.
containerPortRange (string) –
The port number range on the container that’s bound to the dynamically mapped host port range.
The following rules apply when you specify a
containerPortRange
:You must use either the
bridge
network mode or theawsvpc
network mode.This parameter is available for both the EC2 and Fargate launch types.
This parameter is available for both the Linux and Windows operating systems.
The container instance must have at least version 1.67.0 of the container agent and at least version 1.67.0-1 of the
ecs-init
packageYou can specify a maximum of 100 port ranges per container.
You do not specify a
hostPortRange
. The value of thehostPortRange
is set as follows:For containers in a task with the
awsvpc
network mode, thehostPort
is set to the same value as thecontainerPort
. This is a static mapping strategy.For containers in a task with the
bridge
network mode, the Amazon ECS agent finds open host ports from the default ephemeral range and passes it to docker to bind them to the container ports.
The
containerPortRange
valid values are between 1 and 65535.A port can only be included in one port mapping per container.
You cannot specify overlapping port ranges.
The first port in the range must be less than last port in the range.
Docker recommends that you turn off the docker-proxy in the Docker daemon config file when you have a large number of ports. For more information, see Issue #11185 on the Github website. For information about how to turn off the docker-proxy in the Docker daemon config file, see Docker daemon in the Amazon ECS Developer Guide.
You can call DescribeTasks to view the
hostPortRange
which are the host ports that are bound to the container ports.
essential (boolean) –
If the
essential
parameter of a container is marked astrue
, and that container fails or stops for any reason, all other containers that are part of the task are stopped. If theessential
parameter of a container is marked asfalse
, its failure doesn’t affect the rest of the containers in a task. If this parameter is omitted, a container is assumed to be essential.All tasks must have at least one essential container. If you have an application that’s composed of multiple containers, group containers that are used for a common purpose into components, and separate the different components into multiple task definitions. For more information, see Application Architecture in the Amazon Elastic Container Service Developer Guide.
entryPoint (list) –
Warning
Early versions of the Amazon ECS container agent don’t properly handle
entryPoint
parameters. If you have problems usingentryPoint
, update your container agent or enter your commands and arguments ascommand
array items instead.The entry point that’s passed to the container. This parameter maps to
Entrypoint
in the Create a container section of the Docker Remote API and the--entrypoint
option to docker run. For more information, see https://docs.docker.com/engine/reference/builder/#entrypoint.(string) –
command (list) –
The command that’s passed to the container. This parameter maps to
Cmd
in the Create a container section of the Docker Remote API and theCOMMAND
parameter to docker run. For more information, see https://docs.docker.com/engine/reference/builder/#cmd. If there are multiple arguments, each argument is a separated string in the array.(string) –
environment (list) –
The environment variables to pass to a container. This parameter maps to
Env
in the Create a container section of the Docker Remote API and the--env
option to docker run.Warning
We don’t recommend that you use plaintext environment variables for sensitive information, such as credential data.
(dict) –
A key-value pair object.
name (string) –
The name of the key-value pair. For environment variables, this is the name of the environment variable.
value (string) –
The value of the key-value pair. For environment variables, this is the value of the environment variable.
environmentFiles (list) –
A list of files containing the environment variables to pass to a container. This parameter maps to the
--env-file
option to docker run.You can specify up to ten environment files. The file must have a
.env
file extension. Each line in an environment file contains an environment variable inVARIABLE=VALUE
format. Lines beginning with#
are treated as comments and are ignored. For more information about the environment variable file syntax, see Declare default environment variables in file.If there are environment variables specified using the
environment
parameter in a container definition, they take precedence over the variables contained within an environment file. If multiple environment files are specified that contain the same variable, they’re processed from the top down. We recommend that you use unique variable names. For more information, see Specifying Environment Variables in the Amazon Elastic Container Service Developer Guide.(dict) –
A list of files containing the environment variables to pass to a container. You can specify up to ten environment files. The file must have a
.env
file extension. Each line in an environment file should contain an environment variable inVARIABLE=VALUE
format. Lines beginning with#
are treated as comments and are ignored. For more information about the environment variable file syntax, see Declare default environment variables in file.If there are environment variables specified using the
environment
parameter in a container definition, they take precedence over the variables contained within an environment file. If multiple environment files are specified that contain the same variable, they’re processed from the top down. We recommend that you use unique variable names. For more information, see Specifying environment variables in the Amazon Elastic Container Service Developer Guide.You must use the following platforms for the Fargate launch type:
Linux platform version
1.4.0
or later.Windows platform version
1.0.0
or later.
value (string) – [REQUIRED]
The Amazon Resource Name (ARN) of the Amazon S3 object containing the environment variable file.
type (string) – [REQUIRED]
The file type to use. The only supported value is
s3
.
mountPoints (list) –
The mount points for data volumes in your container.
This parameter maps to
Volumes
in the Create a container section of the Docker Remote API and the--volume
option to docker run.Windows containers can mount whole directories on the same drive as
$env:ProgramData
. Windows containers can’t mount directories on a different drive, and mount point can’t be across drives.(dict) –
The details for a volume mount point that’s used in a container definition.
sourceVolume (string) –
The name of the volume to mount. Must be a volume name referenced in the
name
parameter of task definitionvolume
.containerPath (string) –
The path on the container to mount the host volume at.
readOnly (boolean) –
If this value is
true
, the container has read-only access to the volume. If this value isfalse
, then the container can write to the volume. The default value isfalse
.
volumesFrom (list) –
Data volumes to mount from another container. This parameter maps to
VolumesFrom
in the Create a container section of the Docker Remote API and the--volumes-from
option to docker run.(dict) –
Details on a data volume from another container in the same task definition.
sourceContainer (string) –
The name of another container within the same task definition to mount volumes from.
readOnly (boolean) –
If this value is
true
, the container has read-only access to the volume. If this value isfalse
, then the container can write to the volume. The default value isfalse
.
linuxParameters (dict) –
Linux-specific modifications that are applied to the container, such as Linux kernel capabilities. For more information see KernelCapabilities.
Note
This parameter is not supported for Windows containers.
capabilities (dict) –
The Linux capabilities for the container that are added to or dropped from the default configuration provided by Docker.
Note
For tasks that use the Fargate launch type,
capabilities
is supported for all platform versions but theadd
parameter is only supported if using platform version 1.4.0 or later.add (list) –
The Linux capabilities for the container that have been added to the default configuration provided by Docker. This parameter maps to
CapAdd
in the Create a container section of the Docker Remote API and the--cap-add
option to docker run.Note
Tasks launched on Fargate only support adding the
SYS_PTRACE
kernel capability.Valid values:
"ALL" | "AUDIT_CONTROL" | "AUDIT_WRITE" | "BLOCK_SUSPEND" | "CHOWN" | "DAC_OVERRIDE" | "DAC_READ_SEARCH" | "FOWNER" | "FSETID" | "IPC_LOCK" | "IPC_OWNER" | "KILL" | "LEASE" | "LINUX_IMMUTABLE" | "MAC_ADMIN" | "MAC_OVERRIDE" | "MKNOD" | "NET_ADMIN" | "NET_BIND_SERVICE" | "NET_BROADCAST" | "NET_RAW" | "SETFCAP" | "SETGID" | "SETPCAP" | "SETUID" | "SYS_ADMIN" | "SYS_BOOT" | "SYS_CHROOT" | "SYS_MODULE" | "SYS_NICE" | "SYS_PACCT" | "SYS_PTRACE" | "SYS_RAWIO" | "SYS_RESOURCE" | "SYS_TIME" | "SYS_TTY_CONFIG" | "SYSLOG" | "WAKE_ALARM"
(string) –
drop (list) –
The Linux capabilities for the container that have been removed from the default configuration provided by Docker. This parameter maps to
CapDrop
in the Create a container section of the Docker Remote API and the--cap-drop
option to docker run.Valid values:
"ALL" | "AUDIT_CONTROL" | "AUDIT_WRITE" | "BLOCK_SUSPEND" | "CHOWN" | "DAC_OVERRIDE" | "DAC_READ_SEARCH" | "FOWNER" | "FSETID" | "IPC_LOCK" | "IPC_OWNER" | "KILL" | "LEASE" | "LINUX_IMMUTABLE" | "MAC_ADMIN" | "MAC_OVERRIDE" | "MKNOD" | "NET_ADMIN" | "NET_BIND_SERVICE" | "NET_BROADCAST" | "NET_RAW" | "SETFCAP" | "SETGID" | "SETPCAP" | "SETUID" | "SYS_ADMIN" | "SYS_BOOT" | "SYS_CHROOT" | "SYS_MODULE" | "SYS_NICE" | "SYS_PACCT" | "SYS_PTRACE" | "SYS_RAWIO" | "SYS_RESOURCE" | "SYS_TIME" | "SYS_TTY_CONFIG" | "SYSLOG" | "WAKE_ALARM"
(string) –
devices (list) –
Any host devices to expose to the container. This parameter maps to
Devices
in the Create a container section of the Docker Remote API and the--device
option to docker run.Note
If you’re using tasks that use the Fargate launch type, the
devices
parameter isn’t supported.(dict) –
An object representing a container instance host device.
hostPath (string) – [REQUIRED]
The path for the device on the host container instance.
containerPath (string) –
The path inside the container at which to expose the host device.
permissions (list) –
The explicit permissions to provide to the container for the device. By default, the container has permissions for
read
,write
, andmknod
for the device.(string) –
initProcessEnabled (boolean) –
Run an
init
process inside the container that forwards signals and reaps processes. This parameter maps to the--init
option to docker run. This parameter requires version 1.25 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:sudo docker version --format '{{.Server.APIVersion}}'
sharedMemorySize (integer) –
The value for the size (in MiB) of the
/dev/shm
volume. This parameter maps to the--shm-size
option to docker run.Note
If you are using tasks that use the Fargate launch type, the
sharedMemorySize
parameter is not supported.tmpfs (list) –
The container path, mount options, and size (in MiB) of the tmpfs mount. This parameter maps to the
--tmpfs
option to docker run.Note
If you’re using tasks that use the Fargate launch type, the
tmpfs
parameter isn’t supported.(dict) –
The container path, mount options, and size of the tmpfs mount.
containerPath (string) – [REQUIRED]
The absolute file path where the tmpfs volume is to be mounted.
size (integer) – [REQUIRED]
The maximum size (in MiB) of the tmpfs volume.
mountOptions (list) –
The list of tmpfs volume mount options.
Valid values:
"defaults" | "ro" | "rw" | "suid" | "nosuid" | "dev" | "nodev" | "exec" | "noexec" | "sync" | "async" | "dirsync" | "remount" | "mand" | "nomand" | "atime" | "noatime" | "diratime" | "nodiratime" | "bind" | "rbind" | "unbindable" | "runbindable" | "private" | "rprivate" | "shared" | "rshared" | "slave" | "rslave" | "relatime" | "norelatime" | "strictatime" | "nostrictatime" | "mode" | "uid" | "gid" | "nr_inodes" | "nr_blocks" | "mpol"
(string) –
maxSwap (integer) –
The total amount of swap memory (in MiB) a container can use. This parameter will be translated to the
--memory-swap
option to docker run where the value would be the sum of the container memory plus themaxSwap
value.If a
maxSwap
value of0
is specified, the container will not use swap. Accepted values are0
or any positive integer. If themaxSwap
parameter is omitted, the container will use the swap configuration for the container instance it is running on. AmaxSwap
value must be set for theswappiness
parameter to be used.Note
If you’re using tasks that use the Fargate launch type, the
maxSwap
parameter isn’t supported.If you’re using tasks on Amazon Linux 2023 the
swappiness
parameter isn’t supported.swappiness (integer) –
This allows you to tune a container’s memory swappiness behavior. A
swappiness
value of0
will cause swapping to not happen unless absolutely necessary. Aswappiness
value of100
will cause pages to be swapped very aggressively. Accepted values are whole numbers between0
and100
. If theswappiness
parameter is not specified, a default value of60
is used. If a value is not specified formaxSwap
then this parameter is ignored. This parameter maps to the--memory-swappiness
option to docker run.Note
If you’re using tasks that use the Fargate launch type, the
swappiness
parameter isn’t supported.If you’re using tasks on Amazon Linux 2023 the
swappiness
parameter isn’t supported.
secrets (list) –
The secrets to pass to the container. For more information, see Specifying Sensitive Data in the Amazon Elastic Container Service Developer Guide.
(dict) –
An object representing the secret to expose to your container. Secrets can be exposed to a container in the following ways:
To inject sensitive data into your containers as environment variables, use the
secrets
container definition parameter.To reference sensitive information in the log configuration of a container, use the
secretOptions
container definition parameter.
For more information, see Specifying sensitive data in the Amazon Elastic Container Service Developer Guide.
name (string) – [REQUIRED]
The name of the secret.
valueFrom (string) – [REQUIRED]
The secret to expose to the container. The supported values are either the full ARN of the Secrets Manager secret or the full ARN of the parameter in the SSM Parameter Store.
For information about the require Identity and Access Management permissions, see Required IAM permissions for Amazon ECS secrets (for Secrets Manager) or Required IAM permissions for Amazon ECS secrets (for Systems Manager Parameter store) in the Amazon Elastic Container Service Developer Guide.
Note
If the SSM Parameter Store parameter exists in the same Region as the task you’re launching, then you can use either the full ARN or name of the parameter. If the parameter exists in a different Region, then the full ARN must be specified.
dependsOn (list) –
The dependencies defined for container startup and shutdown. A container can contain multiple dependencies on other containers in a task definition. When a dependency is defined for container startup, for container shutdown it is reversed.
For tasks using the EC2 launch type, the container instances require at least version 1.26.0 of the container agent to turn on container dependencies. However, we recommend using the latest container agent version. For information about checking your agent version and updating to the latest version, see Updating the Amazon ECS Container Agent in the Amazon Elastic Container Service Developer Guide. If you’re using an Amazon ECS-optimized Linux AMI, your instance needs at least version 1.26.0-1 of the
ecs-init
package. If your container instances are launched from version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.For tasks using the Fargate launch type, the task or service requires the following platforms:
Linux platform version
1.3.0
or later.Windows platform version
1.0.0
or later.
(dict) –
The dependencies defined for container startup and shutdown. A container can contain multiple dependencies. When a dependency is defined for container startup, for container shutdown it is reversed.
Your Amazon ECS container instances require at least version 1.26.0 of the container agent to use container dependencies. However, we recommend using the latest container agent version. For information about checking your agent version and updating to the latest version, see Updating the Amazon ECS Container Agent in the Amazon Elastic Container Service Developer Guide. If you’re using an Amazon ECS-optimized Linux AMI, your instance needs at least version 1.26.0-1 of the
ecs-init
package. If your container instances are launched from version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.Note
For tasks that use the Fargate launch type, the task or service requires the following platforms:
Linux platform version
1.3.0
or later.Windows platform version
1.0.0
or later.
containerName (string) – [REQUIRED]
The name of a container.
condition (string) – [REQUIRED]
The dependency condition of the container. The following are the available conditions and their behavior:
START
- This condition emulates the behavior of links and volumes today. It validates that a dependent container is started before permitting other containers to start.COMPLETE
- This condition validates that a dependent container runs to completion (exits) before permitting other containers to start. This can be useful for nonessential containers that run a script and then exit. This condition can’t be set on an essential container.SUCCESS
- This condition is the same asCOMPLETE
, but it also requires that the container exits with azero
status. This condition can’t be set on an essential container.HEALTHY
- This condition validates that the dependent container passes its Docker health check before permitting other containers to start. This requires that the dependent container has health checks configured. This condition is confirmed only at task startup.
startTimeout (integer) –
Time duration (in seconds) to wait before giving up on resolving dependencies for a container. For example, you specify two containers in a task definition with containerA having a dependency on containerB reaching a
COMPLETE
,SUCCESS
, orHEALTHY
status. If astartTimeout
value is specified for containerB and it doesn’t reach the desired status within that time then containerA gives up and not start. This results in the task transitioning to aSTOPPED
state.Note
When the
ECS_CONTAINER_START_TIMEOUT
container agent configuration variable is used, it’s enforced independently from this start timeout value.For tasks using the Fargate launch type, the task or service requires the following platforms:
Linux platform version
1.3.0
or later.Windows platform version
1.0.0
or later.
For tasks using the EC2 launch type, your container instances require at least version
1.26.0
of the container agent to use a container start timeout value. However, we recommend using the latest container agent version. For information about checking your agent version and updating to the latest version, see Updating the Amazon ECS Container Agent in the Amazon Elastic Container Service Developer Guide. If you’re using an Amazon ECS-optimized Linux AMI, your instance needs at least version1.26.0-1
of theecs-init
package. If your container instances are launched from version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.The valid values are 2-120 seconds.
stopTimeout (integer) –
Time duration (in seconds) to wait before the container is forcefully killed if it doesn’t exit normally on its own.
For tasks using the Fargate launch type, the task or service requires the following platforms:
Linux platform version
1.3.0
or later.Windows platform version
1.0.0
or later.
The max stop timeout value is 120 seconds and if the parameter is not specified, the default value of 30 seconds is used.
For tasks that use the EC2 launch type, if the
stopTimeout
parameter isn’t specified, the value set for the Amazon ECS container agent configuration variableECS_CONTAINER_STOP_TIMEOUT
is used. If neither thestopTimeout
parameter or theECS_CONTAINER_STOP_TIMEOUT
agent configuration variable are set, then the default values of 30 seconds for Linux containers and 30 seconds on Windows containers are used. Your container instances require at least version 1.26.0 of the container agent to use a container stop timeout value. However, we recommend using the latest container agent version. For information about checking your agent version and updating to the latest version, see Updating the Amazon ECS Container Agent in the Amazon Elastic Container Service Developer Guide. If you’re using an Amazon ECS-optimized Linux AMI, your instance needs at least version 1.26.0-1 of theecs-init
package. If your container instances are launched from version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.The valid values are 2-120 seconds.
hostname (string) –
The hostname to use for your container. This parameter maps to
Hostname
in the Create a container section of the Docker Remote API and the--hostname
option to docker run.Note
The
hostname
parameter is not supported if you’re using theawsvpc
network mode.user (string) –
The user to use inside the container. This parameter maps to
User
in the Create a container section of the Docker Remote API and the--user
option to docker run.Warning
When running tasks using the
host
network mode, don’t run containers using the root user (UID 0). We recommend using a non-root user for better security.You can specify the
user
using the following formats. If specifying a UID or GID, you must specify it as a positive integer.user
user:group
uid
uid:gid
user:gid
uid:group
Note
This parameter is not supported for Windows containers.
workingDirectory (string) –
The working directory to run commands inside the container in. This parameter maps to
WorkingDir
in the Create a container section of the Docker Remote API and the--workdir
option to docker run.disableNetworking (boolean) –
When this parameter is true, networking is off within the container. This parameter maps to
NetworkDisabled
in the Create a container section of the Docker Remote API.Note
This parameter is not supported for Windows containers.
privileged (boolean) –
When this parameter is true, the container is given elevated privileges on the host container instance (similar to the
root
user). This parameter maps toPrivileged
in the Create a container section of the Docker Remote API and the--privileged
option to docker run.Note
This parameter is not supported for Windows containers or tasks run on Fargate.
readonlyRootFilesystem (boolean) –
When this parameter is true, the container is given read-only access to its root file system. This parameter maps to
ReadonlyRootfs
in the Create a container section of the Docker Remote API and the--read-only
option to docker run.Note
This parameter is not supported for Windows containers.
dnsServers (list) –
A list of DNS servers that are presented to the container. This parameter maps to
Dns
in the Create a container section of the Docker Remote API and the--dns
option to docker run.Note
This parameter is not supported for Windows containers.
(string) –
dnsSearchDomains (list) –
A list of DNS search domains that are presented to the container. This parameter maps to
DnsSearch
in the Create a container section of the Docker Remote API and the--dns-search
option to docker run.Note
This parameter is not supported for Windows containers.
(string) –
extraHosts (list) –
A list of hostnames and IP address mappings to append to the
/etc/hosts
file on the container. This parameter maps toExtraHosts
in the Create a container section of the Docker Remote API and the--add-host
option to docker run.Note
This parameter isn’t supported for Windows containers or tasks that use the
awsvpc
network mode.(dict) –
Hostnames and IP address entries that are added to the
/etc/hosts
file of a container via theextraHosts
parameter of its ContainerDefinition.hostname (string) – [REQUIRED]
The hostname to use in the
/etc/hosts
entry.ipAddress (string) – [REQUIRED]
The IP address to use in the
/etc/hosts
entry.
dockerSecurityOptions (list) –
A list of strings to provide custom configuration for multiple security systems. For more information about valid values, see Docker Run Security Configuration. This field isn’t valid for containers in tasks using the Fargate launch type.
For Linux tasks on EC2, this parameter can be used to reference custom labels for SELinux and AppArmor multi-level security systems.
For any tasks on EC2, this parameter can be used to reference a credential spec file that configures a container for Active Directory authentication. For more information, see Using gMSAs for Windows Containers and Using gMSAs for Linux Containers in the Amazon Elastic Container Service Developer Guide.
This parameter maps to
SecurityOpt
in the Create a container section of the Docker Remote API and the--security-opt
option to docker run.Note
The Amazon ECS container agent running on a container instance must register with the
ECS_SELINUX_CAPABLE=true
orECS_APPARMOR_CAPABLE=true
environment variables before containers placed on that instance can use these security options. For more information, see Amazon ECS Container Agent Configuration in the Amazon Elastic Container Service Developer Guide.For more information about valid values, see Docker Run Security Configuration.
Valid values: “no-new-privileges” | “apparmor:PROFILE” | “label:value” | “credentialspec:CredentialSpecFilePath”
(string) –
interactive (boolean) –
When this parameter is
true
, you can deploy containerized applications that requirestdin
or atty
to be allocated. This parameter maps toOpenStdin
in the Create a container section of the Docker Remote API and the--interactive
option to docker run.pseudoTerminal (boolean) –
When this parameter is
true
, a TTY is allocated. This parameter maps toTty
in the Create a container section of the Docker Remote API and the--tty
option to docker run.dockerLabels (dict) –
A key/value map of labels to add to the container. This parameter maps to
Labels
in the Create a container section of the Docker Remote API and the--label
option to docker run. This parameter requires version 1.18 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:sudo docker version --format '{{.Server.APIVersion}}'
(string) –
(string) –
ulimits (list) –
A list of
ulimits
to set in the container. If aulimit
value is specified in a task definition, it overrides the default values set by Docker. This parameter maps toUlimits
in the Create a container section of the Docker Remote API and the--ulimit
option to docker run. Valid naming values are displayed in the Ulimit data type.Amazon ECS tasks hosted on Fargate use the default resource limit values set by the operating system with the exception of the
nofile
resource limit parameter which Fargate overrides. Thenofile
resource limit sets a restriction on the number of open files that a container can use. The defaultnofile
soft limit is1024
and the default hard limit is4096
.This parameter requires version 1.18 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:
sudo docker version --format '{{.Server.APIVersion}}'
Note
This parameter is not supported for Windows containers.
(dict) –
The
ulimit
settings to pass to the container.Amazon ECS tasks hosted on Fargate use the default resource limit values set by the operating system with the exception of the
nofile
resource limit parameter which Fargate overrides. Thenofile
resource limit sets a restriction on the number of open files that a container can use. The defaultnofile
soft limit is1024
and the default hard limit is4096
.You can specify the
ulimit
settings for a container in a task definition.name (string) – [REQUIRED]
The
type
of theulimit
.softLimit (integer) – [REQUIRED]
The soft limit for the
ulimit
type.hardLimit (integer) – [REQUIRED]
The hard limit for the
ulimit
type.
logConfiguration (dict) –
The log configuration specification for the container.
This parameter maps to
LogConfig
in the Create a container section of the Docker Remote API and the--log-driver
option to docker run. By default, containers use the same logging driver that the Docker daemon uses. However the container can use a different logging driver than the Docker daemon by specifying a log driver with this parameter in the container definition. To use a different logging driver for a container, the log system must be configured properly on the container instance (or on a different log server for remote logging options). For more information about the options for different supported log drivers, see Configure logging drivers in the Docker documentation.Note
Amazon ECS currently supports a subset of the logging drivers available to the Docker daemon (shown in the LogConfiguration data type). Additional log drivers may be available in future releases of the Amazon ECS container agent.
This parameter requires version 1.18 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:
sudo docker version --format '{{.Server.APIVersion}}'
Note
The Amazon ECS container agent running on a container instance must register the logging drivers available on that instance with the
ECS_AVAILABLE_LOGGING_DRIVERS
environment variable before containers placed on that instance can use these log configuration options. For more information, see Amazon ECS Container Agent Configuration in the Amazon Elastic Container Service Developer Guide.logDriver (string) – [REQUIRED]
The log driver to use for the container.
For tasks on Fargate, the supported log drivers are
awslogs
,splunk
, andawsfirelens
.For tasks hosted on Amazon EC2 instances, the supported log drivers are
awslogs
,fluentd
,gelf
,json-file
,journald
,logentries
,syslog
,splunk
, andawsfirelens
.For more information about using the
awslogs
log driver, see Using the awslogs log driver in the Amazon Elastic Container Service Developer Guide.For more information about using the
awsfirelens
log driver, see Custom log routing in the Amazon Elastic Container Service Developer Guide.Note
If you have a custom driver that isn’t listed, you can fork the Amazon ECS container agent project that’s available on GitHub and customize it to work with that driver. We encourage you to submit pull requests for changes that you would like to have included. However, we don’t currently provide support for running modified copies of this software.
options (dict) –
The configuration options to send to the log driver. This parameter requires version 1.19 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:
sudo docker version --format '{{.Server.APIVersion}}'
(string) –
(string) –
secretOptions (list) –
The secrets to pass to the log configuration. For more information, see Specifying sensitive data in the Amazon Elastic Container Service Developer Guide.
(dict) –
An object representing the secret to expose to your container. Secrets can be exposed to a container in the following ways:
To inject sensitive data into your containers as environment variables, use the
secrets
container definition parameter.To reference sensitive information in the log configuration of a container, use the
secretOptions
container definition parameter.
For more information, see Specifying sensitive data in the Amazon Elastic Container Service Developer Guide.
name (string) – [REQUIRED]
The name of the secret.
valueFrom (string) – [REQUIRED]
The secret to expose to the container. The supported values are either the full ARN of the Secrets Manager secret or the full ARN of the parameter in the SSM Parameter Store.
For information about the require Identity and Access Management permissions, see Required IAM permissions for Amazon ECS secrets (for Secrets Manager) or Required IAM permissions for Amazon ECS secrets (for Systems Manager Parameter store) in the Amazon Elastic Container Service Developer Guide.
Note
If the SSM Parameter Store parameter exists in the same Region as the task you’re launching, then you can use either the full ARN or name of the parameter. If the parameter exists in a different Region, then the full ARN must be specified.
healthCheck (dict) –
The container health check command and associated configuration parameters for the container. This parameter maps to
HealthCheck
in the Create a container section of the Docker Remote API and theHEALTHCHECK
parameter of docker run.command (list) – [REQUIRED]
A string array representing the command that the container runs to determine if it is healthy. The string array must start with
CMD
to run the command arguments directly, orCMD-SHELL
to run the command with the container’s default shell.When you use the Amazon Web Services Management Console JSON panel, the Command Line Interface, or the APIs, enclose the list of commands in double quotes and brackets.
[ "CMD-SHELL", "curl -f http://localhost/ || exit 1" ]
You don’t include the double quotes and brackets when you use the Amazon Web Services Management Console.
CMD-SHELL, curl -f http://localhost/ || exit 1
An exit code of 0 indicates success, and non-zero exit code indicates failure. For more information, see
HealthCheck
in the Create a container section of the Docker Remote API.(string) –
interval (integer) –
The time period in seconds between each health check execution. You may specify between 5 and 300 seconds. The default value is 30 seconds.
timeout (integer) –
The time period in seconds to wait for a health check to succeed before it is considered a failure. You may specify between 2 and 60 seconds. The default value is 5.
retries (integer) –
The number of times to retry a failed health check before the container is considered unhealthy. You may specify between 1 and 10 retries. The default value is 3.
startPeriod (integer) –
The optional grace period to provide containers time to bootstrap before failed health checks count towards the maximum number of retries. You can specify between 0 and 300 seconds. By default, the
startPeriod
is off.Note
If a health check succeeds within the
startPeriod
, then the container is considered healthy and any subsequent failures count toward the maximum number of retries.
systemControls (list) –
A list of namespaced kernel parameters to set in the container. This parameter maps to
Sysctls
in the Create a container section of the Docker Remote API and the--sysctl
option to docker run.Note
We don’t recommended that you specify network-related
systemControls
parameters for multiple containers in a single task that also uses either theawsvpc
orhost
network modes. For tasks that use theawsvpc
network mode, the container that’s started last determines whichsystemControls
parameters take effect. For tasks that use thehost
network mode, it changes the container instance’s namespaced kernel parameters as well as the containers.(dict) –
A list of namespaced kernel parameters to set in the container. This parameter maps to
Sysctls
in the Create a container section of the Docker Remote API and the--sysctl
option to docker run.We don’t recommend that you specify network-related
systemControls
parameters for multiple containers in a single task. This task also uses either theawsvpc
orhost
network mode. It does it for the following reasons.For tasks that use the
awsvpc
network mode, if you setsystemControls
for any container, it applies to all containers in the task. If you set differentsystemControls
for multiple containers in a single task, the container that’s started last determines whichsystemControls
take effect.For tasks that use the
host
network mode, thesystemControls
parameter applies to the container instance’s kernel parameter and that of all containers of any tasks running on that container instance.
namespace (string) –
The namespaced kernel parameter to set a
value
for.value (string) –
The value for the namespaced kernel parameter that’s specified in
namespace
.
resourceRequirements (list) –
The type and amount of a resource to assign to a container. The only supported resource is a GPU.
(dict) –
The type and amount of a resource to assign to a container. The supported resource types are GPUs and Elastic Inference accelerators. For more information, see Working with GPUs on Amazon ECS or Working with Amazon Elastic Inference on Amazon ECS in the Amazon Elastic Container Service Developer Guide
value (string) – [REQUIRED]
The value for the specified resource type.
If the
GPU
type is used, the value is the number of physicalGPUs
the Amazon ECS container agent reserves for the container. The number of GPUs that’s reserved for all containers in a task can’t exceed the number of available GPUs on the container instance that the task is launched on.If the
InferenceAccelerator
type is used, thevalue
matches thedeviceName
for an InferenceAccelerator specified in a task definition.type (string) – [REQUIRED]
The type of resource to assign to a container. The supported values are
GPU
orInferenceAccelerator
.
firelensConfiguration (dict) –
The FireLens configuration for the container. This is used to specify and configure a log router for container logs. For more information, see Custom Log Routing in the Amazon Elastic Container Service Developer Guide.
type (string) – [REQUIRED]
The log router to use. The valid values are
fluentd
orfluentbit
.options (dict) –
The options to use when configuring the log router. This field is optional and can be used to specify a custom configuration file or to add additional metadata, such as the task, task definition, cluster, and container instance details to the log event. If specified, the syntax to use is
"options":{"enable-ecs-log-metadata":"true|false","config-file-type:"s3|file","config-file-value":"arn:aws:s3:::mybucket/fluent.conf|filepath"}
. For more information, see Creating a task definition that uses a FireLens configuration in the Amazon Elastic Container Service Developer Guide.Note
Tasks hosted on Fargate only support the
file
configuration file type.(string) –
(string) –
credentialSpecs (list) –
A list of ARNs in SSM or Amazon S3 to a credential spec (
CredSpec
) file that configures the container for Active Directory authentication. We recommend that you use this parameter instead of thedockerSecurityOptions
. The maximum number of ARNs is 1.There are two formats for each ARN.
credentialspecdomainless:MyARN
You use
credentialspecdomainless:MyARN
to provide aCredSpec
with an additional section for a secret in Secrets Manager. You provide the login credentials to the domain in the secret.Each task that runs on any container instance can join different domains.
You can use this format without joining the container instance to a domain.
credentialspec:MyARN
You use
credentialspec:MyARN
to provide aCredSpec
for a single domain.You must join the container instance to the domain before you start any tasks that use this task definition.
In both formats, replace
MyARN
with the ARN in SSM or Amazon S3.If you provide a
credentialspecdomainless:MyARN
, thecredspec
must provide a ARN in Secrets Manager for a secret containing the username, password, and the domain to connect to. For better security, the instance isn’t joined to the domain for domainless authentication. Other applications on the instance can’t use the domainless credentials. You can use this parameter to run tasks on the same instance, even it the tasks need to join different domains. For more information, see Using gMSAs for Windows Containers and Using gMSAs for Linux Containers.(string) –
volumes (list) –
A list of volume definitions in JSON format that containers in your task might use.
(dict) –
A data volume that’s used in a task definition. For tasks that use the Amazon Elastic File System (Amazon EFS), specify an
efsVolumeConfiguration
. For Windows tasks that use Amazon FSx for Windows File Server file system, specify afsxWindowsFileServerVolumeConfiguration
. For tasks that use a Docker volume, specify aDockerVolumeConfiguration
. For tasks that use a bind mount host volume, specify ahost
and optionalsourcePath
. For more information, see Using Data Volumes in Tasks.name (string) –
The name of the volume. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed. This name is referenced in the
sourceVolume
parameter of container definitionmountPoints
.This is required wwhen you use an Amazon EFS volume.
host (dict) –
This parameter is specified when you use bind mount host volumes. The contents of the
host
parameter determine whether your bind mount host volume persists on the host container instance and where it’s stored. If thehost
parameter is empty, then the Docker daemon assigns a host path for your data volume. However, the data isn’t guaranteed to persist after the containers that are associated with it stop running.Windows containers can mount whole directories on the same drive as
$env:ProgramData
. Windows containers can’t mount directories on a different drive, and mount point can’t be across drives. For example, you can mountC:\my\path:C:\my\path
andD:\:D:\
, but notD:\my\path:C:\my\path
orD:\:C:\my\path
.sourcePath (string) –
When the
host
parameter is used, specify asourcePath
to declare the path on the host container instance that’s presented to the container. If this parameter is empty, then the Docker daemon has assigned a host path for you. If thehost
parameter contains asourcePath
file location, then the data volume persists at the specified location on the host container instance until you delete it manually. If thesourcePath
value doesn’t exist on the host container instance, the Docker daemon creates it. If the location does exist, the contents of the source path folder are exported.If you’re using the Fargate launch type, the
sourcePath
parameter is not supported.
dockerVolumeConfiguration (dict) –
This parameter is specified when you use Docker volumes.
Windows containers only support the use of the
local
driver. To use bind mounts, specify thehost
parameter instead.Note
Docker volumes aren’t supported by tasks run on Fargate.
scope (string) –
The scope for the Docker volume that determines its lifecycle. Docker volumes that are scoped to a
task
are automatically provisioned when the task starts and destroyed when the task stops. Docker volumes that are scoped asshared
persist after the task stops.autoprovision (boolean) –
If this value is
true
, the Docker volume is created if it doesn’t already exist.Note
This field is only used if the
scope
isshared
.driver (string) –
The Docker volume driver to use. The driver value must match the driver name provided by Docker because it is used for task placement. If the driver was installed using the Docker plugin CLI, use
docker plugin ls
to retrieve the driver name from your container instance. If the driver was installed using another method, use Docker plugin discovery to retrieve the driver name. For more information, see Docker plugin discovery. This parameter maps toDriver
in the Create a volume section of the Docker Remote API and thexxdriver
option to docker volume create.driverOpts (dict) –
A map of Docker driver-specific options passed through. This parameter maps to
DriverOpts
in the Create a volume section of the Docker Remote API and thexxopt
option to docker volume create.(string) –
(string) –
labels (dict) –
Custom metadata to add to your Docker volume. This parameter maps to
Labels
in the Create a volume section of the Docker Remote API and thexxlabel
option to docker volume create.(string) –
(string) –
efsVolumeConfiguration (dict) –
This parameter is specified when you use an Amazon Elastic File System file system for task storage.
fileSystemId (string) – [REQUIRED]
The Amazon EFS file system ID to use.
rootDirectory (string) –
The directory within the Amazon EFS file system to mount as the root directory inside the host. If this parameter is omitted, the root of the Amazon EFS volume will be used. Specifying
/
will have the same effect as omitting this parameter.Warning
If an EFS access point is specified in the
authorizationConfig
, the root directory parameter must either be omitted or set to/
which will enforce the path set on the EFS access point.transitEncryption (string) –
Determines whether to use encryption for Amazon EFS data in transit between the Amazon ECS host and the Amazon EFS server. Transit encryption must be turned on if Amazon EFS IAM authorization is used. If this parameter is omitted, the default value of
DISABLED
is used. For more information, see Encrypting data in transit in the Amazon Elastic File System User Guide.transitEncryptionPort (integer) –
The port to use when sending encrypted data between the Amazon ECS host and the Amazon EFS server. If you do not specify a transit encryption port, it will use the port selection strategy that the Amazon EFS mount helper uses. For more information, see EFS mount helper in the Amazon Elastic File System User Guide.
authorizationConfig (dict) –
The authorization configuration details for the Amazon EFS file system.
accessPointId (string) –
The Amazon EFS access point ID to use. If an access point is specified, the root directory value specified in the
EFSVolumeConfiguration
must either be omitted or set to/
which will enforce the path set on the EFS access point. If an access point is used, transit encryption must be on in theEFSVolumeConfiguration
. For more information, see Working with Amazon EFS access points in the Amazon Elastic File System User Guide.iam (string) –
Determines whether to use the Amazon ECS task role defined in a task definition when mounting the Amazon EFS file system. If it is turned on, transit encryption must be turned on in the
EFSVolumeConfiguration
. If this parameter is omitted, the default value ofDISABLED
is used. For more information, see Using Amazon EFS access points in the Amazon Elastic Container Service Developer Guide.
fsxWindowsFileServerVolumeConfiguration (dict) –
This parameter is specified when you use Amazon FSx for Windows File Server file system for task storage.
fileSystemId (string) – [REQUIRED]
The Amazon FSx for Windows File Server file system ID to use.
rootDirectory (string) – [REQUIRED]
The directory within the Amazon FSx for Windows File Server file system to mount as the root directory inside the host.
authorizationConfig (dict) – [REQUIRED]
The authorization configuration details for the Amazon FSx for Windows File Server file system.
credentialsParameter (string) – [REQUIRED]
The authorization credential option to use. The authorization credential options can be provided using either the Amazon Resource Name (ARN) of an Secrets Manager secret or SSM Parameter Store parameter. The ARN refers to the stored credentials.
domain (string) – [REQUIRED]
A fully qualified domain name hosted by an Directory Service Managed Microsoft AD (Active Directory) or self-hosted AD on Amazon EC2.
placementConstraints (list) –
An array of placement constraint objects to use for the task. You can specify a maximum of 10 constraints for each task. This limit includes constraints in the task definition and those specified at runtime.
(dict) –
The constraint on task placement in the task definition. For more information, see Task placement constraints in the Amazon Elastic Container Service Developer Guide.
Note
Task placement constraints aren’t supported for tasks run on Fargate.
type (string) –
The type of constraint. The
MemberOf
constraint restricts selection to be from a group of valid candidates.expression (string) –
A cluster query language expression to apply to the constraint. For more information, see Cluster query language in the Amazon Elastic Container Service Developer Guide.
requiresCompatibilities (list) –
The task launch type that Amazon ECS validates the task definition against. A client exception is returned if the task definition doesn’t validate against the compatibilities specified. If no value is specified, the parameter is omitted from the response.
(string) –
cpu (string) –
The number of CPU units used by the task. It can be expressed as an integer using CPU units (for example,
1024
) or as a string using vCPUs (for example,1 vCPU
or1 vcpu
) in a task definition. String values are converted to an integer indicating the CPU units when the task definition is registered.Note
Task-level CPU and memory parameters are ignored for Windows containers. We recommend specifying container-level resources for Windows containers.
If you’re using the EC2 launch type, this field is optional. Supported values are between
128
CPU units (0.125
vCPUs) and10240
CPU units (10
vCPUs). If you do not specify a value, the parameter is ignored.If you’re using the Fargate launch type, this field is required and you must use one of the following values, which determines your range of supported values for the
memory
parameter:The CPU units cannot be less than 1 vCPU when you use Windows containers on Fargate.
256 (.25 vCPU) - Available
memory
values: 512 (0.5 GB), 1024 (1 GB), 2048 (2 GB)512 (.5 vCPU) - Available
memory
values: 1024 (1 GB), 2048 (2 GB), 3072 (3 GB), 4096 (4 GB)1024 (1 vCPU) - Available
memory
values: 2048 (2 GB), 3072 (3 GB), 4096 (4 GB), 5120 (5 GB), 6144 (6 GB), 7168 (7 GB), 8192 (8 GB)2048 (2 vCPU) - Available
memory
values: 4096 (4 GB) and 16384 (16 GB) in increments of 1024 (1 GB)4096 (4 vCPU) - Available
memory
values: 8192 (8 GB) and 30720 (30 GB) in increments of 1024 (1 GB)8192 (8 vCPU) - Available
memory
values: 16 GB and 60 GB in 4 GB increments This option requires Linux platform1.4.0
or later.16384 (16vCPU) - Available
memory
values: 32GB and 120 GB in 8 GB increments This option requires Linux platform1.4.0
or later.
memory (string) –
The amount of memory (in MiB) used by the task. It can be expressed as an integer using MiB (for example ,
1024
) or as a string using GB (for example,1GB
or1 GB
) in a task definition. String values are converted to an integer indicating the MiB when the task definition is registered.Note
Task-level CPU and memory parameters are ignored for Windows containers. We recommend specifying container-level resources for Windows containers.
If using the EC2 launch type, this field is optional.
If using the Fargate launch type, this field is required and you must use one of the following values. This determines your range of supported values for the
cpu
parameter.The CPU units cannot be less than 1 vCPU when you use Windows containers on Fargate.
512 (0.5 GB), 1024 (1 GB), 2048 (2 GB) - Available
cpu
values: 256 (.25 vCPU)1024 (1 GB), 2048 (2 GB), 3072 (3 GB), 4096 (4 GB) - Available
cpu
values: 512 (.5 vCPU)2048 (2 GB), 3072 (3 GB), 4096 (4 GB), 5120 (5 GB), 6144 (6 GB), 7168 (7 GB), 8192 (8 GB) - Available
cpu
values: 1024 (1 vCPU)Between 4096 (4 GB) and 16384 (16 GB) in increments of 1024 (1 GB) - Available
cpu
values: 2048 (2 vCPU)Between 8192 (8 GB) and 30720 (30 GB) in increments of 1024 (1 GB) - Available
cpu
values: 4096 (4 vCPU)Between 16 GB and 60 GB in 4 GB increments - Available
cpu
values: 8192 (8 vCPU) This option requires Linux platform1.4.0
or later.Between 32GB and 120 GB in 8 GB increments - Available
cpu
values: 16384 (16 vCPU) This option requires Linux platform1.4.0
or later.
tags (list) –
The metadata that you apply to the task definition to help you categorize and organize them. Each tag consists of a key and an optional value. You define both of them.
The following basic restrictions apply to tags:
Maximum number of tags per resource - 50
For each resource, each tag key must be unique, and each tag key can have only one value.
Maximum key length - 128 Unicode characters in UTF-8
Maximum value length - 256 Unicode characters in UTF-8
If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.
Tag keys and values are case-sensitive.
Do not use
aws:
,AWS:
, or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for Amazon Web Services use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.
(dict) –
The metadata that you apply to a resource to help you categorize and organize them. Each tag consists of a key and an optional value. You define them.
The following basic restrictions apply to tags:
Maximum number of tags per resource - 50
For each resource, each tag key must be unique, and each tag key can have only one value.
Maximum key length - 128 Unicode characters in UTF-8
Maximum value length - 256 Unicode characters in UTF-8
If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.
Tag keys and values are case-sensitive.
Do not use
aws:
,AWS:
, or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for Amazon Web Services use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.
key (string) –
One part of a key-value pair that make up a tag. A
key
is a general label that acts like a category for more specific tag values.value (string) –
The optional part of a key-value pair that make up a tag. A
value
acts as a descriptor within a tag category (key).
pidMode (string) –
The process namespace to use for the containers in the task. The valid values are
host
ortask
. Ifhost
is specified, then all containers within the tasks that specified thehost
PID mode on the same container instance share the same process namespace with the host Amazon EC2 instance. Iftask
is specified, all containers within the specified task share the same process namespace. If no value is specified, the default is a private namespace. For more information, see PID settings in the Docker run reference.If the
host
PID mode is used, be aware that there is a heightened risk of undesired process namespace expose. For more information, see Docker security.Note
This parameter is not supported for Windows containers or tasks run on Fargate.
ipcMode (string) –
The IPC resource namespace to use for the containers in the task. The valid values are
host
,task
, ornone
. Ifhost
is specified, then all containers within the tasks that specified thehost
IPC mode on the same container instance share the same IPC resources with the host Amazon EC2 instance. Iftask
is specified, all containers within the specified task share the same IPC resources. Ifnone
is specified, then IPC resources within the containers of a task are private and not shared with other containers in a task or on the container instance. If no value is specified, then the IPC resource namespace sharing depends on the Docker daemon setting on the container instance. For more information, see IPC settings in the Docker run reference.If the
host
IPC mode is used, be aware that there is a heightened risk of undesired IPC namespace expose. For more information, see Docker security.If you are setting namespaced kernel parameters using
systemControls
for the containers in the task, the following will apply to your IPC resource namespace. For more information, see System Controls in the Amazon Elastic Container Service Developer Guide.For tasks that use the
host
IPC mode, IPC namespace relatedsystemControls
are not supported.For tasks that use the
task
IPC mode, IPC namespace relatedsystemControls
will apply to all containers within a task.
Note
This parameter is not supported for Windows containers or tasks run on Fargate.
proxyConfiguration (dict) –
The configuration details for the App Mesh proxy.
For tasks hosted on Amazon EC2 instances, the container instances require at least version
1.26.0
of the container agent and at least version1.26.0-1
of theecs-init
package to use a proxy configuration. If your container instances are launched from the Amazon ECS-optimized AMI version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized AMI versions in the Amazon Elastic Container Service Developer Guide.type (string) –
The proxy type. The only supported value is
APPMESH
.containerName (string) – [REQUIRED]
The name of the container that will serve as the App Mesh proxy.
properties (list) –
The set of network configuration parameters to provide the Container Network Interface (CNI) plugin, specified as key-value pairs.
IgnoredUID
- (Required) The user ID (UID) of the proxy container as defined by theuser
parameter in a container definition. This is used to ensure the proxy ignores its own traffic. IfIgnoredGID
is specified, this field can be empty.IgnoredGID
- (Required) The group ID (GID) of the proxy container as defined by theuser
parameter in a container definition. This is used to ensure the proxy ignores its own traffic. IfIgnoredUID
is specified, this field can be empty.AppPorts
- (Required) The list of ports that the application uses. Network traffic to these ports is forwarded to theProxyIngressPort
andProxyEgressPort
.ProxyIngressPort
- (Required) Specifies the port that incoming traffic to theAppPorts
is directed to.ProxyEgressPort
- (Required) Specifies the port that outgoing traffic from theAppPorts
is directed to.EgressIgnoredPorts
- (Required) The egress traffic going to the specified ports is ignored and not redirected to theProxyEgressPort
. It can be an empty list.EgressIgnoredIPs
- (Required) The egress traffic going to the specified IP addresses is ignored and not redirected to theProxyEgressPort
. It can be an empty list.
(dict) –
A key-value pair object.
name (string) –
The name of the key-value pair. For environment variables, this is the name of the environment variable.
value (string) –
The value of the key-value pair. For environment variables, this is the value of the environment variable.
inferenceAccelerators (list) –
The Elastic Inference accelerators to use for the containers in the task.
(dict) –
Details on an Elastic Inference accelerator. For more information, see Working with Amazon Elastic Inference on Amazon ECS in the Amazon Elastic Container Service Developer Guide.
deviceName (string) – [REQUIRED]
The Elastic Inference accelerator device name. The
deviceName
must also be referenced in a container definition as a ResourceRequirement.deviceType (string) – [REQUIRED]
The Elastic Inference accelerator type to use.
ephemeralStorage (dict) –
The amount of ephemeral storage to allocate for the task. This parameter is used to expand the total amount of ephemeral storage available, beyond the default amount, for tasks hosted on Fargate. For more information, see Fargate task storage in the Amazon ECS User Guide for Fargate.
Note
For tasks using the Fargate launch type, the task requires the following platforms:
Linux platform version
1.4.0
or later.Windows platform version
1.0.0
or later.
sizeInGiB (integer) – [REQUIRED]
The total amount, in GiB, of ephemeral storage to set for the task. The minimum supported value is
21
GiB and the maximum supported value is200
GiB.
runtimePlatform (dict) –
The operating system that your tasks definitions run on. A platform family is specified only for tasks using the Fargate launch type.
When you specify a task definition in a service, this value must match the
runtimePlatform
value of the service.cpuArchitecture (string) –
The CPU architecture.
You can run your Linux tasks on an ARM-based platform by setting the value to
ARM64
. This option is available for tasks that run on Linux Amazon EC2 instance or Linux containers on Fargate.operatingSystemFamily (string) –
The operating system.
- Return type:
dict
- Returns:
Response Syntax
{ 'taskDefinition': { 'taskDefinitionArn': 'string', 'containerDefinitions': [ { 'name': 'string', 'image': 'string', 'repositoryCredentials': { 'credentialsParameter': 'string' }, 'cpu': 123, 'memory': 123, 'memoryReservation': 123, 'links': [ 'string', ], 'portMappings': [ { 'containerPort': 123, 'hostPort': 123, 'protocol': 'tcp'|'udp', 'name': 'string', 'appProtocol': 'http'|'http2'|'grpc', 'containerPortRange': 'string' }, ], 'essential': True|False, 'entryPoint': [ 'string', ], 'command': [ 'string', ], 'environment': [ { 'name': 'string', 'value': 'string' }, ], 'environmentFiles': [ { 'value': 'string', 'type': 's3' }, ], 'mountPoints': [ { 'sourceVolume': 'string', 'containerPath': 'string', 'readOnly': True|False }, ], 'volumesFrom': [ { 'sourceContainer': 'string', 'readOnly': True|False }, ], 'linuxParameters': { 'capabilities': { 'add': [ 'string', ], 'drop': [ 'string', ] }, 'devices': [ { 'hostPath': 'string', 'containerPath': 'string', 'permissions': [ 'read'|'write'|'mknod', ] }, ], 'initProcessEnabled': True|False, 'sharedMemorySize': 123, 'tmpfs': [ { 'containerPath': 'string', 'size': 123, 'mountOptions': [ 'string', ] }, ], 'maxSwap': 123, 'swappiness': 123 }, 'secrets': [ { 'name': 'string', 'valueFrom': 'string' }, ], 'dependsOn': [ { 'containerName': 'string', 'condition': 'START'|'COMPLETE'|'SUCCESS'|'HEALTHY' }, ], 'startTimeout': 123, 'stopTimeout': 123, 'hostname': 'string', 'user': 'string', 'workingDirectory': 'string', 'disableNetworking': True|False, 'privileged': True|False, 'readonlyRootFilesystem': True|False, 'dnsServers': [ 'string', ], 'dnsSearchDomains': [ 'string', ], 'extraHosts': [ { 'hostname': 'string', 'ipAddress': 'string' }, ], 'dockerSecurityOptions': [ 'string', ], 'interactive': True|False, 'pseudoTerminal': True|False, 'dockerLabels': { 'string': 'string' }, 'ulimits': [ { 'name': 'core'|'cpu'|'data'|'fsize'|'locks'|'memlock'|'msgqueue'|'nice'|'nofile'|'nproc'|'rss'|'rtprio'|'rttime'|'sigpending'|'stack', 'softLimit': 123, 'hardLimit': 123 }, ], 'logConfiguration': { 'logDriver': 'json-file'|'syslog'|'journald'|'gelf'|'fluentd'|'awslogs'|'splunk'|'awsfirelens', 'options': { 'string': 'string' }, 'secretOptions': [ { 'name': 'string', 'valueFrom': 'string' }, ] }, 'healthCheck': { 'command': [ 'string', ], 'interval': 123, 'timeout': 123, 'retries': 123, 'startPeriod': 123 }, 'systemControls': [ { 'namespace': 'string', 'value': 'string' }, ], 'resourceRequirements': [ { 'value': 'string', 'type': 'GPU'|'InferenceAccelerator' }, ], 'firelensConfiguration': { 'type': 'fluentd'|'fluentbit', 'options': { 'string': 'string' } }, 'credentialSpecs': [ 'string', ] }, ], 'family': 'string', 'taskRoleArn': 'string', 'executionRoleArn': 'string', 'networkMode': 'bridge'|'host'|'awsvpc'|'none', 'revision': 123, 'volumes': [ { 'name': 'string', 'host': { 'sourcePath': 'string' }, 'dockerVolumeConfiguration': { 'scope': 'task'|'shared', 'autoprovision': True|False, 'driver': 'string', 'driverOpts': { 'string': 'string' }, 'labels': { 'string': 'string' } }, 'efsVolumeConfiguration': { 'fileSystemId': 'string', 'rootDirectory': 'string', 'transitEncryption': 'ENABLED'|'DISABLED', 'transitEncryptionPort': 123, 'authorizationConfig': { 'accessPointId': 'string', 'iam': 'ENABLED'|'DISABLED' } }, 'fsxWindowsFileServerVolumeConfiguration': { 'fileSystemId': 'string', 'rootDirectory': 'string', 'authorizationConfig': { 'credentialsParameter': 'string', 'domain': 'string' } } }, ], 'status': 'ACTIVE'|'INACTIVE'|'DELETE_IN_PROGRESS', 'requiresAttributes': [ { 'name': 'string', 'value': 'string', 'targetType': 'container-instance', 'targetId': 'string' }, ], 'placementConstraints': [ { 'type': 'memberOf', 'expression': 'string' }, ], 'compatibilities': [ 'EC2'|'FARGATE'|'EXTERNAL', ], 'runtimePlatform': { 'cpuArchitecture': 'X86_64'|'ARM64', 'operatingSystemFamily': 'WINDOWS_SERVER_2019_FULL'|'WINDOWS_SERVER_2019_CORE'|'WINDOWS_SERVER_2016_FULL'|'WINDOWS_SERVER_2004_CORE'|'WINDOWS_SERVER_2022_CORE'|'WINDOWS_SERVER_2022_FULL'|'WINDOWS_SERVER_20H2_CORE'|'LINUX' }, 'requiresCompatibilities': [ 'EC2'|'FARGATE'|'EXTERNAL', ], 'cpu': 'string', 'memory': 'string', 'inferenceAccelerators': [ { 'deviceName': 'string', 'deviceType': 'string' }, ], 'pidMode': 'host'|'task', 'ipcMode': 'host'|'task'|'none', 'proxyConfiguration': { 'type': 'APPMESH', 'containerName': 'string', 'properties': [ { 'name': 'string', 'value': 'string' }, ] }, 'registeredAt': datetime(2015, 1, 1), 'deregisteredAt': datetime(2015, 1, 1), 'registeredBy': 'string', 'ephemeralStorage': { 'sizeInGiB': 123 } }, 'tags': [ { 'key': 'string', 'value': 'string' }, ] }
Response Structure
(dict) –
taskDefinition (dict) –
The full description of the registered task definition.
taskDefinitionArn (string) –
The full Amazon Resource Name (ARN) of the task definition.
containerDefinitions (list) –
A list of container definitions in JSON format that describe the different containers that make up your task. For more information about container definition parameters and defaults, see Amazon ECS Task Definitions in the Amazon Elastic Container Service Developer Guide.
(dict) –
Container definitions are used in task definitions to describe the different containers that are launched as part of a task.
name (string) –
The name of a container. If you’re linking multiple containers together in a task definition, the
name
of one container can be entered in thelinks
of another container to connect the containers. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed. This parameter maps toname
in the Create a container section of the Docker Remote API and the--name
option to docker run.image (string) –
The image used to start a container. This string is passed directly to the Docker daemon. By default, images in the Docker Hub registry are available. Other repositories are specified with either
repository-url/image:tag
orrepository-url/image@digest ``. Up to 255 letters (uppercase and lowercase), numbers, hyphens, underscores, colons, periods, forward slashes, and number signs are allowed. This parameter maps to ``Image
in the Create a container section of the Docker Remote API and theIMAGE
parameter of docker run.When a new task starts, the Amazon ECS container agent pulls the latest version of the specified image and tag for the container to use. However, subsequent updates to a repository image aren’t propagated to already running tasks.
Images in Amazon ECR repositories can be specified by either using the full
registry/repository:tag
orregistry/repository@digest
. For example,012345678910.dkr.ecr.<region-name>.amazonaws.com/<repository-name>:latest
or012345678910.dkr.ecr.<region-name>.amazonaws.com/<repository-name>@sha256:94afd1f2e64d908bc90dbca0035a5b567EXAMPLE
.Images in official repositories on Docker Hub use a single name (for example,
ubuntu
ormongo
).Images in other repositories on Docker Hub are qualified with an organization name (for example,
amazon/amazon-ecs-agent
).Images in other online repositories are qualified further by a domain name (for example,
quay.io/assemblyline/ubuntu
).
repositoryCredentials (dict) –
The private repository authentication credentials to use.
credentialsParameter (string) –
The Amazon Resource Name (ARN) of the secret containing the private repository credentials.
Note
When you use the Amazon ECS API, CLI, or Amazon Web Services SDK, if the secret exists in the same Region as the task that you’re launching then you can use either the full ARN or the name of the secret. When you use the Amazon Web Services Management Console, you must specify the full ARN of the secret.
cpu (integer) –
The number of
cpu
units reserved for the container. This parameter maps toCpuShares
in the Create a container section of the Docker Remote API and the--cpu-shares
option to docker run.This field is optional for tasks using the Fargate launch type, and the only requirement is that the total amount of CPU reserved for all containers within a task be lower than the task-level
cpu
value.Note
You can determine the number of CPU units that are available per EC2 instance type by multiplying the vCPUs listed for that instance type on the Amazon EC2 Instances detail page by 1,024.
Linux containers share unallocated CPU units with other containers on the container instance with the same ratio as their allocated amount. For example, if you run a single-container task on a single-core instance type with 512 CPU units specified for that container, and that’s the only task running on the container instance, that container could use the full 1,024 CPU unit share at any given time. However, if you launched another copy of the same task on that container instance, each task is guaranteed a minimum of 512 CPU units when needed. Moreover, each container could float to higher CPU usage if the other container was not using it. If both tasks were 100% active all of the time, they would be limited to 512 CPU units.
On Linux container instances, the Docker daemon on the container instance uses the CPU value to calculate the relative CPU share ratios for running containers. For more information, see CPU share constraint in the Docker documentation. The minimum valid CPU share value that the Linux kernel allows is 2. However, the CPU parameter isn’t required, and you can use CPU values below 2 in your container definitions. For CPU values below 2 (including null), the behavior varies based on your Amazon ECS container agent version:
Agent versions less than or equal to 1.1.0: Null and zero CPU values are passed to Docker as 0, which Docker then converts to 1,024 CPU shares. CPU values of 1 are passed to Docker as 1, which the Linux kernel converts to two CPU shares.
Agent versions greater than or equal to 1.2.0: Null, zero, and CPU values of 1 are passed to Docker as 2.
On Windows container instances, the CPU limit is enforced as an absolute limit, or a quota. Windows containers only have access to the specified amount of CPU that’s described in the task definition. A null or zero CPU value is passed to Docker as
0
, which Windows interprets as 1% of one CPU.memory (integer) –
The amount (in MiB) of memory to present to the container. If your container attempts to exceed the memory specified here, the container is killed. The total amount of memory reserved for all containers within a task must be lower than the task
memory
value, if one is specified. This parameter maps toMemory
in the Create a container section of the Docker Remote API and the--memory
option to docker run.If using the Fargate launch type, this parameter is optional.
If using the EC2 launch type, you must specify either a task-level memory value or a container-level memory value. If you specify both a container-level
memory
andmemoryReservation
value,memory
must be greater thanmemoryReservation
. If you specifymemoryReservation
, then that value is subtracted from the available memory resources for the container instance where the container is placed. Otherwise, the value ofmemory
is used.The Docker 20.10.0 or later daemon reserves a minimum of 6 MiB of memory for a container. So, don’t specify less than 6 MiB of memory for your containers.
The Docker 19.03.13-ce or earlier daemon reserves a minimum of 4 MiB of memory for a container. So, don’t specify less than 4 MiB of memory for your containers.
memoryReservation (integer) –
The soft limit (in MiB) of memory to reserve for the container. When system memory is under heavy contention, Docker attempts to keep the container memory to this soft limit. However, your container can consume more memory when it needs to, up to either the hard limit specified with the
memory
parameter (if applicable), or all of the available memory on the container instance, whichever comes first. This parameter maps toMemoryReservation
in the Create a container section of the Docker Remote API and the--memory-reservation
option to docker run.If a task-level memory value is not specified, you must specify a non-zero integer for one or both of
memory
ormemoryReservation
in a container definition. If you specify both,memory
must be greater thanmemoryReservation
. If you specifymemoryReservation
, then that value is subtracted from the available memory resources for the container instance where the container is placed. Otherwise, the value ofmemory
is used.For example, if your container normally uses 128 MiB of memory, but occasionally bursts to 256 MiB of memory for short periods of time, you can set a
memoryReservation
of 128 MiB, and amemory
hard limit of 300 MiB. This configuration would allow the container to only reserve 128 MiB of memory from the remaining resources on the container instance, but also allow the container to consume more memory resources when needed.The Docker 20.10.0 or later daemon reserves a minimum of 6 MiB of memory for a container. So, don’t specify less than 6 MiB of memory for your containers.
The Docker 19.03.13-ce or earlier daemon reserves a minimum of 4 MiB of memory for a container. So, don’t specify less than 4 MiB of memory for your containers.
links (list) –
The
links
parameter allows containers to communicate with each other without the need for port mappings. This parameter is only supported if the network mode of a task definition isbridge
. Thename:internalName
construct is analogous toname:alias
in Docker links. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed. For more information about linking Docker containers, go to Legacy container links in the Docker documentation. This parameter maps toLinks
in the Create a container section of the Docker Remote API and the--link
option to docker run.Note
This parameter is not supported for Windows containers.
Warning
Containers that are collocated on a single container instance may be able to communicate with each other without requiring links or host port mappings. Network isolation is achieved on the container instance using security groups and VPC settings.
(string) –
portMappings (list) –
The list of port mappings for the container. Port mappings allow containers to access ports on the host container instance to send or receive traffic.
For task definitions that use the
awsvpc
network mode, only specify thecontainerPort
. ThehostPort
can be left blank or it must be the same value as thecontainerPort
.Port mappings on Windows use the
NetNAT
gateway address rather thanlocalhost
. There’s no loopback for port mappings on Windows, so you can’t access a container’s mapped port from the host itself.This parameter maps to
PortBindings
in the Create a container section of the Docker Remote API and the--publish
option to docker run. If the network mode of a task definition is set tonone
, then you can’t specify port mappings. If the network mode of a task definition is set tohost
, then host ports must either be undefined or they must match the container port in the port mapping.Note
After a task reaches the
RUNNING
status, manual and automatic host and container port assignments are visible in the Network Bindings section of a container description for a selected task in the Amazon ECS console. The assignments are also visible in thenetworkBindings
section DescribeTasks responses.(dict) –
Port mappings allow containers to access ports on the host container instance to send or receive traffic. Port mappings are specified as part of the container definition.
If you use containers in a task with the
awsvpc
orhost
network mode, specify the exposed ports usingcontainerPort
. ThehostPort
can be left blank or it must be the same value as thecontainerPort
.Most fields of this parameter (
containerPort
,hostPort
,protocol
) maps toPortBindings
in the Create a container section of the Docker Remote API and the--publish
option to docker run. If the network mode of a task definition is set tohost
, host ports must either be undefined or match the container port in the port mapping.Note
You can’t expose the same container port for multiple protocols. If you attempt this, an error is returned.
After a task reaches the
RUNNING
status, manual and automatic host and container port assignments are visible in thenetworkBindings
section of DescribeTasks API responses.containerPort (integer) –
The port number on the container that’s bound to the user-specified or automatically assigned host port.
If you use containers in a task with the
awsvpc
orhost
network mode, specify the exposed ports usingcontainerPort
.If you use containers in a task with the
bridge
network mode and you specify a container port and not a host port, your container automatically receives a host port in the ephemeral port range. For more information, seehostPort
. Port mappings that are automatically assigned in this way do not count toward the 100 reserved ports limit of a container instance.hostPort (integer) –
The port number on the container instance to reserve for your container.
If you specify a
containerPortRange
, leave this field empty and the value of thehostPort
is set as follows:For containers in a task with the
awsvpc
network mode, thehostPort
is set to the same value as thecontainerPort
. This is a static mapping strategy.For containers in a task with the
bridge
network mode, the Amazon ECS agent finds open ports on the host and automatically binds them to the container ports. This is a dynamic mapping strategy.
If you use containers in a task with the
awsvpc
orhost
network mode, thehostPort
can either be left blank or set to the same value as thecontainerPort
.If you use containers in a task with the
bridge
network mode, you can specify a non-reserved host port for your container port mapping, or you can omit thehostPort
(or set it to0
) while specifying acontainerPort
and your container automatically receives a port in the ephemeral port range for your container instance operating system and Docker version.The default ephemeral port range for Docker version 1.6.0 and later is listed on the instance under
/proc/sys/net/ipv4/ip_local_port_range
. If this kernel parameter is unavailable, the default ephemeral port range from 49153 through 65535 (Linux) or 49152 through 65535 (Windows) is used. Do not attempt to specify a host port in the ephemeral port range as these are reserved for automatic assignment. In general, ports below 32768 are outside of the ephemeral port range.The default reserved ports are 22 for SSH, the Docker ports 2375 and 2376, and the Amazon ECS container agent ports 51678-51680. Any host port that was previously specified in a running task is also reserved while the task is running. That is, after a task stops, the host port is released. The current reserved ports are displayed in the
remainingResources
of DescribeContainerInstances output. A container instance can have up to 100 reserved ports at a time. This number includes the default reserved ports. Automatically assigned ports aren’t included in the 100 reserved ports quota.protocol (string) –
The protocol used for the port mapping. Valid values are
tcp
andudp
. The default istcp
.name (string) –
The name that’s used for the port mapping. This parameter only applies to Service Connect. This parameter is the name that you use in the
serviceConnectConfiguration
of a service. The name can include up to 64 characters. The characters can include lowercase letters, numbers, underscores (_), and hyphens (-). The name can’t start with a hyphen.For more information, see Service Connect in the Amazon Elastic Container Service Developer Guide.
appProtocol (string) –
The application protocol that’s used for the port mapping. This parameter only applies to Service Connect. We recommend that you set this parameter to be consistent with the protocol that your application uses. If you set this parameter, Amazon ECS adds protocol-specific connection handling to the Service Connect proxy. If you set this parameter, Amazon ECS adds protocol-specific telemetry in the Amazon ECS console and CloudWatch.
If you don’t set a value for this parameter, then TCP is used. However, Amazon ECS doesn’t add protocol-specific telemetry for TCP.
Tasks that run in a namespace can use short names to connect to services in the namespace. Tasks can connect to services across all of the clusters in the namespace. Tasks connect through a managed proxy container that collects logs and metrics for increased visibility. Only the tasks that Amazon ECS services create are supported with Service Connect. For more information, see Service Connect in the Amazon Elastic Container Service Developer Guide.
containerPortRange (string) –
The port number range on the container that’s bound to the dynamically mapped host port range.
The following rules apply when you specify a
containerPortRange
:You must use either the
bridge
network mode or theawsvpc
network mode.This parameter is available for both the EC2 and Fargate launch types.
This parameter is available for both the Linux and Windows operating systems.
The container instance must have at least version 1.67.0 of the container agent and at least version 1.67.0-1 of the
ecs-init
packageYou can specify a maximum of 100 port ranges per container.
You do not specify a
hostPortRange
. The value of thehostPortRange
is set as follows:For containers in a task with the
awsvpc
network mode, thehostPort
is set to the same value as thecontainerPort
. This is a static mapping strategy.For containers in a task with the
bridge
network mode, the Amazon ECS agent finds open host ports from the default ephemeral range and passes it to docker to bind them to the container ports.
The
containerPortRange
valid values are between 1 and 65535.A port can only be included in one port mapping per container.
You cannot specify overlapping port ranges.
The first port in the range must be less than last port in the range.
Docker recommends that you turn off the docker-proxy in the Docker daemon config file when you have a large number of ports. For more information, see Issue #11185 on the Github website. For information about how to turn off the docker-proxy in the Docker daemon config file, see Docker daemon in the Amazon ECS Developer Guide.
You can call DescribeTasks to view the
hostPortRange
which are the host ports that are bound to the container ports.
essential (boolean) –
If the
essential
parameter of a container is marked astrue
, and that container fails or stops for any reason, all other containers that are part of the task are stopped. If theessential
parameter of a container is marked asfalse
, its failure doesn’t affect the rest of the containers in a task. If this parameter is omitted, a container is assumed to be essential.All tasks must have at least one essential container. If you have an application that’s composed of multiple containers, group containers that are used for a common purpose into components, and separate the different components into multiple task definitions. For more information, see Application Architecture in the Amazon Elastic Container Service Developer Guide.
entryPoint (list) –
Warning
Early versions of the Amazon ECS container agent don’t properly handle
entryPoint
parameters. If you have problems usingentryPoint
, update your container agent or enter your commands and arguments ascommand
array items instead.The entry point that’s passed to the container. This parameter maps to
Entrypoint
in the Create a container section of the Docker Remote API and the--entrypoint
option to docker run. For more information, see https://docs.docker.com/engine/reference/builder/#entrypoint.(string) –
command (list) –
The command that’s passed to the container. This parameter maps to
Cmd
in the Create a container section of the Docker Remote API and theCOMMAND
parameter to docker run. For more information, see https://docs.docker.com/engine/reference/builder/#cmd. If there are multiple arguments, each argument is a separated string in the array.(string) –
environment (list) –
The environment variables to pass to a container. This parameter maps to
Env
in the Create a container section of the Docker Remote API and the--env
option to docker run.Warning
We don’t recommend that you use plaintext environment variables for sensitive information, such as credential data.
(dict) –
A key-value pair object.
name (string) –
The name of the key-value pair. For environment variables, this is the name of the environment variable.
value (string) –
The value of the key-value pair. For environment variables, this is the value of the environment variable.
environmentFiles (list) –
A list of files containing the environment variables to pass to a container. This parameter maps to the
--env-file
option to docker run.You can specify up to ten environment files. The file must have a
.env
file extension. Each line in an environment file contains an environment variable inVARIABLE=VALUE
format. Lines beginning with#
are treated as comments and are ignored. For more information about the environment variable file syntax, see Declare default environment variables in file.If there are environment variables specified using the
environment
parameter in a container definition, they take precedence over the variables contained within an environment file. If multiple environment files are specified that contain the same variable, they’re processed from the top down. We recommend that you use unique variable names. For more information, see Specifying Environment Variables in the Amazon Elastic Container Service Developer Guide.(dict) –
A list of files containing the environment variables to pass to a container. You can specify up to ten environment files. The file must have a
.env
file extension. Each line in an environment file should contain an environment variable inVARIABLE=VALUE
format. Lines beginning with#
are treated as comments and are ignored. For more information about the environment variable file syntax, see Declare default environment variables in file.If there are environment variables specified using the
environment
parameter in a container definition, they take precedence over the variables contained within an environment file. If multiple environment files are specified that contain the same variable, they’re processed from the top down. We recommend that you use unique variable names. For more information, see Specifying environment variables in the Amazon Elastic Container Service Developer Guide.You must use the following platforms for the Fargate launch type:
Linux platform version
1.4.0
or later.Windows platform version
1.0.0
or later.
value (string) –
The Amazon Resource Name (ARN) of the Amazon S3 object containing the environment variable file.
type (string) –
The file type to use. The only supported value is
s3
.
mountPoints (list) –
The mount points for data volumes in your container.
This parameter maps to
Volumes
in the Create a container section of the Docker Remote API and the--volume
option to docker run.Windows containers can mount whole directories on the same drive as
$env:ProgramData
. Windows containers can’t mount directories on a different drive, and mount point can’t be across drives.(dict) –
The details for a volume mount point that’s used in a container definition.
sourceVolume (string) –
The name of the volume to mount. Must be a volume name referenced in the
name
parameter of task definitionvolume
.containerPath (string) –
The path on the container to mount the host volume at.
readOnly (boolean) –
If this value is
true
, the container has read-only access to the volume. If this value isfalse
, then the container can write to the volume. The default value isfalse
.
volumesFrom (list) –
Data volumes to mount from another container. This parameter maps to
VolumesFrom
in the Create a container section of the Docker Remote API and the--volumes-from
option to docker run.(dict) –
Details on a data volume from another container in the same task definition.
sourceContainer (string) –
The name of another container within the same task definition to mount volumes from.
readOnly (boolean) –
If this value is
true
, the container has read-only access to the volume. If this value isfalse
, then the container can write to the volume. The default value isfalse
.
linuxParameters (dict) –
Linux-specific modifications that are applied to the container, such as Linux kernel capabilities. For more information see KernelCapabilities.
Note
This parameter is not supported for Windows containers.
capabilities (dict) –
The Linux capabilities for the container that are added to or dropped from the default configuration provided by Docker.
Note
For tasks that use the Fargate launch type,
capabilities
is supported for all platform versions but theadd
parameter is only supported if using platform version 1.4.0 or later.add (list) –
The Linux capabilities for the container that have been added to the default configuration provided by Docker. This parameter maps to
CapAdd
in the Create a container section of the Docker Remote API and the--cap-add
option to docker run.Note
Tasks launched on Fargate only support adding the
SYS_PTRACE
kernel capability.Valid values:
"ALL" | "AUDIT_CONTROL" | "AUDIT_WRITE" | "BLOCK_SUSPEND" | "CHOWN" | "DAC_OVERRIDE" | "DAC_READ_SEARCH" | "FOWNER" | "FSETID" | "IPC_LOCK" | "IPC_OWNER" | "KILL" | "LEASE" | "LINUX_IMMUTABLE" | "MAC_ADMIN" | "MAC_OVERRIDE" | "MKNOD" | "NET_ADMIN" | "NET_BIND_SERVICE" | "NET_BROADCAST" | "NET_RAW" | "SETFCAP" | "SETGID" | "SETPCAP" | "SETUID" | "SYS_ADMIN" | "SYS_BOOT" | "SYS_CHROOT" | "SYS_MODULE" | "SYS_NICE" | "SYS_PACCT" | "SYS_PTRACE" | "SYS_RAWIO" | "SYS_RESOURCE" | "SYS_TIME" | "SYS_TTY_CONFIG" | "SYSLOG" | "WAKE_ALARM"
(string) –
drop (list) –
The Linux capabilities for the container that have been removed from the default configuration provided by Docker. This parameter maps to
CapDrop
in the Create a container section of the Docker Remote API and the--cap-drop
option to docker run.Valid values:
"ALL" | "AUDIT_CONTROL" | "AUDIT_WRITE" | "BLOCK_SUSPEND" | "CHOWN" | "DAC_OVERRIDE" | "DAC_READ_SEARCH" | "FOWNER" | "FSETID" | "IPC_LOCK" | "IPC_OWNER" | "KILL" | "LEASE" | "LINUX_IMMUTABLE" | "MAC_ADMIN" | "MAC_OVERRIDE" | "MKNOD" | "NET_ADMIN" | "NET_BIND_SERVICE" | "NET_BROADCAST" | "NET_RAW" | "SETFCAP" | "SETGID" | "SETPCAP" | "SETUID" | "SYS_ADMIN" | "SYS_BOOT" | "SYS_CHROOT" | "SYS_MODULE" | "SYS_NICE" | "SYS_PACCT" | "SYS_PTRACE" | "SYS_RAWIO" | "SYS_RESOURCE" | "SYS_TIME" | "SYS_TTY_CONFIG" | "SYSLOG" | "WAKE_ALARM"
(string) –
devices (list) –
Any host devices to expose to the container. This parameter maps to
Devices
in the Create a container section of the Docker Remote API and the--device
option to docker run.Note
If you’re using tasks that use the Fargate launch type, the
devices
parameter isn’t supported.(dict) –
An object representing a container instance host device.
hostPath (string) –
The path for the device on the host container instance.
containerPath (string) –
The path inside the container at which to expose the host device.
permissions (list) –
The explicit permissions to provide to the container for the device. By default, the container has permissions for
read
,write
, andmknod
for the device.(string) –
initProcessEnabled (boolean) –
Run an
init
process inside the container that forwards signals and reaps processes. This parameter maps to the--init
option to docker run. This parameter requires version 1.25 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:sudo docker version --format '{{.Server.APIVersion}}'
sharedMemorySize (integer) –
The value for the size (in MiB) of the
/dev/shm
volume. This parameter maps to the--shm-size
option to docker run.Note
If you are using tasks that use the Fargate launch type, the
sharedMemorySize
parameter is not supported.tmpfs (list) –
The container path, mount options, and size (in MiB) of the tmpfs mount. This parameter maps to the
--tmpfs
option to docker run.Note
If you’re using tasks that use the Fargate launch type, the
tmpfs
parameter isn’t supported.(dict) –
The container path, mount options, and size of the tmpfs mount.
containerPath (string) –
The absolute file path where the tmpfs volume is to be mounted.
size (integer) –
The maximum size (in MiB) of the tmpfs volume.
mountOptions (list) –
The list of tmpfs volume mount options.
Valid values:
"defaults" | "ro" | "rw" | "suid" | "nosuid" | "dev" | "nodev" | "exec" | "noexec" | "sync" | "async" | "dirsync" | "remount" | "mand" | "nomand" | "atime" | "noatime" | "diratime" | "nodiratime" | "bind" | "rbind" | "unbindable" | "runbindable" | "private" | "rprivate" | "shared" | "rshared" | "slave" | "rslave" | "relatime" | "norelatime" | "strictatime" | "nostrictatime" | "mode" | "uid" | "gid" | "nr_inodes" | "nr_blocks" | "mpol"
(string) –
maxSwap (integer) –
The total amount of swap memory (in MiB) a container can use. This parameter will be translated to the
--memory-swap
option to docker run where the value would be the sum of the container memory plus themaxSwap
value.If a
maxSwap
value of0
is specified, the container will not use swap. Accepted values are0
or any positive integer. If themaxSwap
parameter is omitted, the container will use the swap configuration for the container instance it is running on. AmaxSwap
value must be set for theswappiness
parameter to be used.Note
If you’re using tasks that use the Fargate launch type, the
maxSwap
parameter isn’t supported.If you’re using tasks on Amazon Linux 2023 the
swappiness
parameter isn’t supported.swappiness (integer) –
This allows you to tune a container’s memory swappiness behavior. A
swappiness
value of0
will cause swapping to not happen unless absolutely necessary. Aswappiness
value of100
will cause pages to be swapped very aggressively. Accepted values are whole numbers between0
and100
. If theswappiness
parameter is not specified, a default value of60
is used. If a value is not specified formaxSwap
then this parameter is ignored. This parameter maps to the--memory-swappiness
option to docker run.Note
If you’re using tasks that use the Fargate launch type, the
swappiness
parameter isn’t supported.If you’re using tasks on Amazon Linux 2023 the
swappiness
parameter isn’t supported.
secrets (list) –
The secrets to pass to the container. For more information, see Specifying Sensitive Data in the Amazon Elastic Container Service Developer Guide.
(dict) –
An object representing the secret to expose to your container. Secrets can be exposed to a container in the following ways:
To inject sensitive data into your containers as environment variables, use the
secrets
container definition parameter.To reference sensitive information in the log configuration of a container, use the
secretOptions
container definition parameter.
For more information, see Specifying sensitive data in the Amazon Elastic Container Service Developer Guide.
name (string) –
The name of the secret.
valueFrom (string) –
The secret to expose to the container. The supported values are either the full ARN of the Secrets Manager secret or the full ARN of the parameter in the SSM Parameter Store.
For information about the require Identity and Access Management permissions, see Required IAM permissions for Amazon ECS secrets (for Secrets Manager) or Required IAM permissions for Amazon ECS secrets (for Systems Manager Parameter store) in the Amazon Elastic Container Service Developer Guide.
Note
If the SSM Parameter Store parameter exists in the same Region as the task you’re launching, then you can use either the full ARN or name of the parameter. If the parameter exists in a different Region, then the full ARN must be specified.
dependsOn (list) –
The dependencies defined for container startup and shutdown. A container can contain multiple dependencies on other containers in a task definition. When a dependency is defined for container startup, for container shutdown it is reversed.
For tasks using the EC2 launch type, the container instances require at least version 1.26.0 of the container agent to turn on container dependencies. However, we recommend using the latest container agent version. For information about checking your agent version and updating to the latest version, see Updating the Amazon ECS Container Agent in the Amazon Elastic Container Service Developer Guide. If you’re using an Amazon ECS-optimized Linux AMI, your instance needs at least version 1.26.0-1 of the
ecs-init
package. If your container instances are launched from version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.For tasks using the Fargate launch type, the task or service requires the following platforms:
Linux platform version
1.3.0
or later.Windows platform version
1.0.0
or later.
(dict) –
The dependencies defined for container startup and shutdown. A container can contain multiple dependencies. When a dependency is defined for container startup, for container shutdown it is reversed.
Your Amazon ECS container instances require at least version 1.26.0 of the container agent to use container dependencies. However, we recommend using the latest container agent version. For information about checking your agent version and updating to the latest version, see Updating the Amazon ECS Container Agent in the Amazon Elastic Container Service Developer Guide. If you’re using an Amazon ECS-optimized Linux AMI, your instance needs at least version 1.26.0-1 of the
ecs-init
package. If your container instances are launched from version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.Note
For tasks that use the Fargate launch type, the task or service requires the following platforms:
Linux platform version
1.3.0
or later.Windows platform version
1.0.0
or later.
containerName (string) –
The name of a container.
condition (string) –
The dependency condition of the container. The following are the available conditions and their behavior:
START
- This condition emulates the behavior of links and volumes today. It validates that a dependent container is started before permitting other containers to start.COMPLETE
- This condition validates that a dependent container runs to completion (exits) before permitting other containers to start. This can be useful for nonessential containers that run a script and then exit. This condition can’t be set on an essential container.SUCCESS
- This condition is the same asCOMPLETE
, but it also requires that the container exits with azero
status. This condition can’t be set on an essential container.HEALTHY
- This condition validates that the dependent container passes its Docker health check before permitting other containers to start. This requires that the dependent container has health checks configured. This condition is confirmed only at task startup.
startTimeout (integer) –
Time duration (in seconds) to wait before giving up on resolving dependencies for a container. For example, you specify two containers in a task definition with containerA having a dependency on containerB reaching a
COMPLETE
,SUCCESS
, orHEALTHY
status. If astartTimeout
value is specified for containerB and it doesn’t reach the desired status within that time then containerA gives up and not start. This results in the task transitioning to aSTOPPED
state.Note
When the
ECS_CONTAINER_START_TIMEOUT
container agent configuration variable is used, it’s enforced independently from this start timeout value.For tasks using the Fargate launch type, the task or service requires the following platforms:
Linux platform version
1.3.0
or later.Windows platform version
1.0.0
or later.
For tasks using the EC2 launch type, your container instances require at least version
1.26.0
of the container agent to use a container start timeout value. However, we recommend using the latest container agent version. For information about checking your agent version and updating to the latest version, see Updating the Amazon ECS Container Agent in the Amazon Elastic Container Service Developer Guide. If you’re using an Amazon ECS-optimized Linux AMI, your instance needs at least version1.26.0-1
of theecs-init
package. If your container instances are launched from version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.The valid values are 2-120 seconds.
stopTimeout (integer) –
Time duration (in seconds) to wait before the container is forcefully killed if it doesn’t exit normally on its own.
For tasks using the Fargate launch type, the task or service requires the following platforms:
Linux platform version
1.3.0
or later.Windows platform version
1.0.0
or later.
The max stop timeout value is 120 seconds and if the parameter is not specified, the default value of 30 seconds is used.
For tasks that use the EC2 launch type, if the
stopTimeout
parameter isn’t specified, the value set for the Amazon ECS container agent configuration variableECS_CONTAINER_STOP_TIMEOUT
is used. If neither thestopTimeout
parameter or theECS_CONTAINER_STOP_TIMEOUT
agent configuration variable are set, then the default values of 30 seconds for Linux containers and 30 seconds on Windows containers are used. Your container instances require at least version 1.26.0 of the container agent to use a container stop timeout value. However, we recommend using the latest container agent version. For information about checking your agent version and updating to the latest version, see Updating the Amazon ECS Container Agent in the Amazon Elastic Container Service Developer Guide. If you’re using an Amazon ECS-optimized Linux AMI, your instance needs at least version 1.26.0-1 of theecs-init
package. If your container instances are launched from version20190301
or later, then they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.The valid values are 2-120 seconds.
hostname (string) –
The hostname to use for your container. This parameter maps to
Hostname
in the Create a container section of the Docker Remote API and the--hostname
option to docker run.Note
The
hostname
parameter is not supported if you’re using theawsvpc
network mode.user (string) –
The user to use inside the container. This parameter maps to
User
in the Create a container section of the Docker Remote API and the--user
option to docker run.Warning
When running tasks using the
host
network mode, don’t run containers using the root user (UID 0). We recommend using a non-root user for better security.You can specify the
user
using the following formats. If specifying a UID or GID, you must specify it as a positive integer.user
user:group
uid
uid:gid
user:gid
uid:group
Note
This parameter is not supported for Windows containers.
workingDirectory (string) –
The working directory to run commands inside the container in. This parameter maps to
WorkingDir
in the Create a container section of the Docker Remote API and the--workdir
option to docker run.disableNetworking (boolean) –
When this parameter is true, networking is off within the container. This parameter maps to
NetworkDisabled
in the Create a container section of the Docker Remote API.Note
This parameter is not supported for Windows containers.
privileged (boolean) –
When this parameter is true, the container is given elevated privileges on the host container instance (similar to the
root
user). This parameter maps toPrivileged
in the Create a container section of the Docker Remote API and the--privileged
option to docker run.Note
This parameter is not supported for Windows containers or tasks run on Fargate.
readonlyRootFilesystem (boolean) –
When this parameter is true, the container is given read-only access to its root file system. This parameter maps to
ReadonlyRootfs
in the Create a container section of the Docker Remote API and the--read-only
option to docker run.Note
This parameter is not supported for Windows containers.
dnsServers (list) –
A list of DNS servers that are presented to the container. This parameter maps to
Dns
in the Create a container section of the Docker Remote API and the--dns
option to docker run.Note
This parameter is not supported for Windows containers.
(string) –
dnsSearchDomains (list) –
A list of DNS search domains that are presented to the container. This parameter maps to
DnsSearch
in the Create a container section of the Docker Remote API and the--dns-search
option to docker run.Note
This parameter is not supported for Windows containers.
(string) –
extraHosts (list) –
A list of hostnames and IP address mappings to append to the
/etc/hosts
file on the container. This parameter maps toExtraHosts
in the Create a container section of the Docker Remote API and the--add-host
option to docker run.Note
This parameter isn’t supported for Windows containers or tasks that use the
awsvpc
network mode.(dict) –
Hostnames and IP address entries that are added to the
/etc/hosts
file of a container via theextraHosts
parameter of its ContainerDefinition.hostname (string) –
The hostname to use in the
/etc/hosts
entry.ipAddress (string) –
The IP address to use in the
/etc/hosts
entry.
dockerSecurityOptions (list) –
A list of strings to provide custom configuration for multiple security systems. For more information about valid values, see Docker Run Security Configuration. This field isn’t valid for containers in tasks using the Fargate launch type.
For Linux tasks on EC2, this parameter can be used to reference custom labels for SELinux and AppArmor multi-level security systems.
For any tasks on EC2, this parameter can be used to reference a credential spec file that configures a container for Active Directory authentication. For more information, see Using gMSAs for Windows Containers and Using gMSAs for Linux Containers in the Amazon Elastic Container Service Developer Guide.
This parameter maps to
SecurityOpt
in the Create a container section of the Docker Remote API and the--security-opt
option to docker run.Note
The Amazon ECS container agent running on a container instance must register with the
ECS_SELINUX_CAPABLE=true
orECS_APPARMOR_CAPABLE=true
environment variables before containers placed on that instance can use these security options. For more information, see Amazon ECS Container Agent Configuration in the Amazon Elastic Container Service Developer Guide.For more information about valid values, see Docker Run Security Configuration.
Valid values: “no-new-privileges” | “apparmor:PROFILE” | “label:value” | “credentialspec:CredentialSpecFilePath”
(string) –
interactive (boolean) –
When this parameter is
true
, you can deploy containerized applications that requirestdin
or atty
to be allocated. This parameter maps toOpenStdin
in the Create a container section of the Docker Remote API and the--interactive
option to docker run.pseudoTerminal (boolean) –
When this parameter is
true
, a TTY is allocated. This parameter maps toTty
in the Create a container section of the Docker Remote API and the--tty
option to docker run.dockerLabels (dict) –
A key/value map of labels to add to the container. This parameter maps to
Labels
in the Create a container section of the Docker Remote API and the--label
option to docker run. This parameter requires version 1.18 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:sudo docker version --format '{{.Server.APIVersion}}'
(string) –
(string) –
ulimits (list) –
A list of
ulimits
to set in the container. If aulimit
value is specified in a task definition, it overrides the default values set by Docker. This parameter maps toUlimits
in the Create a container section of the Docker Remote API and the--ulimit
option to docker run. Valid naming values are displayed in the Ulimit data type.Amazon ECS tasks hosted on Fargate use the default resource limit values set by the operating system with the exception of the
nofile
resource limit parameter which Fargate overrides. Thenofile
resource limit sets a restriction on the number of open files that a container can use. The defaultnofile
soft limit is1024
and the default hard limit is4096
.This parameter requires version 1.18 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:
sudo docker version --format '{{.Server.APIVersion}}'
Note
This parameter is not supported for Windows containers.
(dict) –
The
ulimit
settings to pass to the container.Amazon ECS tasks hosted on Fargate use the default resource limit values set by the operating system with the exception of the
nofile
resource limit parameter which Fargate overrides. Thenofile
resource limit sets a restriction on the number of open files that a container can use. The defaultnofile
soft limit is1024
and the default hard limit is4096
.You can specify the
ulimit
settings for a container in a task definition.name (string) –
The
type
of theulimit
.softLimit (integer) –
The soft limit for the
ulimit
type.hardLimit (integer) –
The hard limit for the
ulimit
type.
logConfiguration (dict) –
The log configuration specification for the container.
This parameter maps to
LogConfig
in the Create a container section of the Docker Remote API and the--log-driver
option to docker run. By default, containers use the same logging driver that the Docker daemon uses. However the container can use a different logging driver than the Docker daemon by specifying a log driver with this parameter in the container definition. To use a different logging driver for a container, the log system must be configured properly on the container instance (or on a different log server for remote logging options). For more information about the options for different supported log drivers, see Configure logging drivers in the Docker documentation.Note
Amazon ECS currently supports a subset of the logging drivers available to the Docker daemon (shown in the LogConfiguration data type). Additional log drivers may be available in future releases of the Amazon ECS container agent.
This parameter requires version 1.18 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:
sudo docker version --format '{{.Server.APIVersion}}'
Note
The Amazon ECS container agent running on a container instance must register the logging drivers available on that instance with the
ECS_AVAILABLE_LOGGING_DRIVERS
environment variable before containers placed on that instance can use these log configuration options. For more information, see Amazon ECS Container Agent Configuration in the Amazon Elastic Container Service Developer Guide.logDriver (string) –
The log driver to use for the container.
For tasks on Fargate, the supported log drivers are
awslogs
,splunk
, andawsfirelens
.For tasks hosted on Amazon EC2 instances, the supported log drivers are
awslogs
,fluentd
,gelf
,json-file
,journald
,logentries
,syslog
,splunk
, andawsfirelens
.For more information about using the
awslogs
log driver, see Using the awslogs log driver in the Amazon Elastic Container Service Developer Guide.For more information about using the
awsfirelens
log driver, see Custom log routing in the Amazon Elastic Container Service Developer Guide.Note
If you have a custom driver that isn’t listed, you can fork the Amazon ECS container agent project that’s available on GitHub and customize it to work with that driver. We encourage you to submit pull requests for changes that you would like to have included. However, we don’t currently provide support for running modified copies of this software.
options (dict) –
The configuration options to send to the log driver. This parameter requires version 1.19 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command:
sudo docker version --format '{{.Server.APIVersion}}'
(string) –
(string) –
secretOptions (list) –
The secrets to pass to the log configuration. For more information, see Specifying sensitive data in the Amazon Elastic Container Service Developer Guide.
(dict) –
An object representing the secret to expose to your container. Secrets can be exposed to a container in the following ways:
To inject sensitive data into your containers as environment variables, use the
secrets
container definition parameter.To reference sensitive information in the log configuration of a container, use the
secretOptions
container definition parameter.
For more information, see Specifying sensitive data in the Amazon Elastic Container Service Developer Guide.
name (string) –
The name of the secret.
valueFrom (string) –
The secret to expose to the container. The supported values are either the full ARN of the Secrets Manager secret or the full ARN of the parameter in the SSM Parameter Store.
For information about the require Identity and Access Management permissions, see Required IAM permissions for Amazon ECS secrets (for Secrets Manager) or Required IAM permissions for Amazon ECS secrets (for Systems Manager Parameter store) in the Amazon Elastic Container Service Developer Guide.
Note
If the SSM Parameter Store parameter exists in the same Region as the task you’re launching, then you can use either the full ARN or name of the parameter. If the parameter exists in a different Region, then the full ARN must be specified.
healthCheck (dict) –
The container health check command and associated configuration parameters for the container. This parameter maps to
HealthCheck
in the Create a container section of the Docker Remote API and theHEALTHCHECK
parameter of docker run.command (list) –
A string array representing the command that the container runs to determine if it is healthy. The string array must start with
CMD
to run the command arguments directly, orCMD-SHELL
to run the command with the container’s default shell.When you use the Amazon Web Services Management Console JSON panel, the Command Line Interface, or the APIs, enclose the list of commands in double quotes and brackets.
[ "CMD-SHELL", "curl -f http://localhost/ || exit 1" ]
You don’t include the double quotes and brackets when you use the Amazon Web Services Management Console.
CMD-SHELL, curl -f http://localhost/ || exit 1
An exit code of 0 indicates success, and non-zero exit code indicates failure. For more information, see
HealthCheck
in the Create a container section of the Docker Remote API.(string) –
interval (integer) –
The time period in seconds between each health check execution. You may specify between 5 and 300 seconds. The default value is 30 seconds.
timeout (integer) –
The time period in seconds to wait for a health check to succeed before it is considered a failure. You may specify between 2 and 60 seconds. The default value is 5.
retries (integer) –
The number of times to retry a failed health check before the container is considered unhealthy. You may specify between 1 and 10 retries. The default value is 3.
startPeriod (integer) –
The optional grace period to provide containers time to bootstrap before failed health checks count towards the maximum number of retries. You can specify between 0 and 300 seconds. By default, the
startPeriod
is off.Note
If a health check succeeds within the
startPeriod
, then the container is considered healthy and any subsequent failures count toward the maximum number of retries.
systemControls (list) –
A list of namespaced kernel parameters to set in the container. This parameter maps to
Sysctls
in the Create a container section of the Docker Remote API and the--sysctl
option to docker run.Note
We don’t recommended that you specify network-related
systemControls
parameters for multiple containers in a single task that also uses either theawsvpc
orhost
network modes. For tasks that use theawsvpc
network mode, the container that’s started last determines whichsystemControls
parameters take effect. For tasks that use thehost
network mode, it changes the container instance’s namespaced kernel parameters as well as the containers.(dict) –
A list of namespaced kernel parameters to set in the container. This parameter maps to
Sysctls
in the Create a container section of the Docker Remote API and the--sysctl
option to docker run.We don’t recommend that you specify network-related
systemControls
parameters for multiple containers in a single task. This task also uses either theawsvpc
orhost
network mode. It does it for the following reasons.For tasks that use the
awsvpc
network mode, if you setsystemControls
for any container, it applies to all containers in the task. If you set differentsystemControls
for multiple containers in a single task, the container that’s started last determines whichsystemControls
take effect.For tasks that use the
host
network mode, thesystemControls
parameter applies to the container instance’s kernel parameter and that of all containers of any tasks running on that container instance.
namespace (string) –
The namespaced kernel parameter to set a
value
for.value (string) –
The value for the namespaced kernel parameter that’s specified in
namespace
.
resourceRequirements (list) –
The type and amount of a resource to assign to a container. The only supported resource is a GPU.
(dict) –
The type and amount of a resource to assign to a container. The supported resource types are GPUs and Elastic Inference accelerators. For more information, see Working with GPUs on Amazon ECS or Working with Amazon Elastic Inference on Amazon ECS in the Amazon Elastic Container Service Developer Guide
value (string) –
The value for the specified resource type.
If the
GPU
type is used, the value is the number of physicalGPUs
the Amazon ECS container agent reserves for the container. The number of GPUs that’s reserved for all containers in a task can’t exceed the number of available GPUs on the container instance that the task is launched on.If the
InferenceAccelerator
type is used, thevalue
matches thedeviceName
for an InferenceAccelerator specified in a task definition.type (string) –
The type of resource to assign to a container. The supported values are
GPU
orInferenceAccelerator
.
firelensConfiguration (dict) –
The FireLens configuration for the container. This is used to specify and configure a log router for container logs. For more information, see Custom Log Routing in the Amazon Elastic Container Service Developer Guide.
type (string) –
The log router to use. The valid values are
fluentd
orfluentbit
.options (dict) –
The options to use when configuring the log router. This field is optional and can be used to specify a custom configuration file or to add additional metadata, such as the task, task definition, cluster, and container instance details to the log event. If specified, the syntax to use is
"options":{"enable-ecs-log-metadata":"true|false","config-file-type:"s3|file","config-file-value":"arn:aws:s3:::mybucket/fluent.conf|filepath"}
. For more information, see Creating a task definition that uses a FireLens configuration in the Amazon Elastic Container Service Developer Guide.Note
Tasks hosted on Fargate only support the
file
configuration file type.(string) –
(string) –
credentialSpecs (list) –
A list of ARNs in SSM or Amazon S3 to a credential spec (
CredSpec
) file that configures the container for Active Directory authentication. We recommend that you use this parameter instead of thedockerSecurityOptions
. The maximum number of ARNs is 1.There are two formats for each ARN.
credentialspecdomainless:MyARN
You use
credentialspecdomainless:MyARN
to provide aCredSpec
with an additional section for a secret in Secrets Manager. You provide the login credentials to the domain in the secret.Each task that runs on any container instance can join different domains.
You can use this format without joining the container instance to a domain.
credentialspec:MyARN
You use
credentialspec:MyARN
to provide aCredSpec
for a single domain.You must join the container instance to the domain before you start any tasks that use this task definition.
In both formats, replace
MyARN
with the ARN in SSM or Amazon S3.If you provide a
credentialspecdomainless:MyARN
, thecredspec
must provide a ARN in Secrets Manager for a secret containing the username, password, and the domain to connect to. For better security, the instance isn’t joined to the domain for domainless authentication. Other applications on the instance can’t use the domainless credentials. You can use this parameter to run tasks on the same instance, even it the tasks need to join different domains. For more information, see Using gMSAs for Windows Containers and Using gMSAs for Linux Containers.(string) –
family (string) –
The name of a family that this task definition is registered to. Up to 255 characters are allowed. Letters (both uppercase and lowercase letters), numbers, hyphens (-), and underscores (_) are allowed.
A family groups multiple versions of a task definition. Amazon ECS gives the first task definition that you registered to a family a revision number of 1. Amazon ECS gives sequential revision numbers to each task definition that you add.
taskRoleArn (string) –
The short name or full Amazon Resource Name (ARN) of the Identity and Access Management role that grants containers in the task permission to call Amazon Web Services APIs on your behalf. For more information, see Amazon ECS Task Role in the Amazon Elastic Container Service Developer Guide.
IAM roles for tasks on Windows require that the
-EnableTaskIAMRole
option is set when you launch the Amazon ECS-optimized Windows AMI. Your containers must also run some configuration code to use the feature. For more information, see Windows IAM roles for tasks in the Amazon Elastic Container Service Developer Guide.executionRoleArn (string) –
The Amazon Resource Name (ARN) of the task execution role that grants the Amazon ECS container agent permission to make Amazon Web Services API calls on your behalf. The task execution IAM role is required depending on the requirements of your task. For more information, see Amazon ECS task execution IAM role in the Amazon Elastic Container Service Developer Guide.
networkMode (string) –
The Docker networking mode to use for the containers in the task. The valid values are
none
,bridge
,awsvpc
, andhost
. If no network mode is specified, the default isbridge
.For Amazon ECS tasks on Fargate, the
awsvpc
network mode is required. For Amazon ECS tasks on Amazon EC2 Linux instances, any network mode can be used. For Amazon ECS tasks on Amazon EC2 Windows instances,<default>
orawsvpc
can be used. If the network mode is set tonone
, you cannot specify port mappings in your container definitions, and the tasks containers do not have external connectivity. Thehost
andawsvpc
network modes offer the highest networking performance for containers because they use the EC2 network stack instead of the virtualized network stack provided by thebridge
mode.With the
host
andawsvpc
network modes, exposed container ports are mapped directly to the corresponding host port (for thehost
network mode) or the attached elastic network interface port (for theawsvpc
network mode), so you cannot take advantage of dynamic host port mappings.Warning
When using the
host
network mode, you should not run containers using the root user (UID 0). It is considered best practice to use a non-root user.If the network mode is
awsvpc
, the task is allocated an elastic network interface, and you must specify a NetworkConfiguration value when you create a service or run a task with the task definition. For more information, see Task Networking in the Amazon Elastic Container Service Developer Guide.If the network mode is
host
, you cannot run multiple instantiations of the same task on a single container instance when port mappings are used.For more information, see Network settings in the Docker run reference.
revision (integer) –
The revision of the task in a particular family. The revision is a version number of a task definition in a family. When you register a task definition for the first time, the revision is
1
. Each time that you register a new revision of a task definition in the same family, the revision value always increases by one. This is even if you deregistered previous revisions in this family.volumes (list) –
The list of data volume definitions for the task. For more information, see Using data volumes in tasks in the Amazon Elastic Container Service Developer Guide.
Note
The
host
andsourcePath
parameters aren’t supported for tasks run on Fargate.(dict) –
A data volume that’s used in a task definition. For tasks that use the Amazon Elastic File System (Amazon EFS), specify an
efsVolumeConfiguration
. For Windows tasks that use Amazon FSx for Windows File Server file system, specify afsxWindowsFileServerVolumeConfiguration
. For tasks that use a Docker volume, specify aDockerVolumeConfiguration
. For tasks that use a bind mount host volume, specify ahost
and optionalsourcePath
. For more information, see Using Data Volumes in Tasks.name (string) –
The name of the volume. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed. This name is referenced in the
sourceVolume
parameter of container definitionmountPoints
.This is required wwhen you use an Amazon EFS volume.
host (dict) –
This parameter is specified when you use bind mount host volumes. The contents of the
host
parameter determine whether your bind mount host volume persists on the host container instance and where it’s stored. If thehost
parameter is empty, then the Docker daemon assigns a host path for your data volume. However, the data isn’t guaranteed to persist after the containers that are associated with it stop running.Windows containers can mount whole directories on the same drive as
$env:ProgramData
. Windows containers can’t mount directories on a different drive, and mount point can’t be across drives. For example, you can mountC:\my\path:C:\my\path
andD:\:D:\
, but notD:\my\path:C:\my\path
orD:\:C:\my\path
.sourcePath (string) –
When the
host
parameter is used, specify asourcePath
to declare the path on the host container instance that’s presented to the container. If this parameter is empty, then the Docker daemon has assigned a host path for you. If thehost
parameter contains asourcePath
file location, then the data volume persists at the specified location on the host container instance until you delete it manually. If thesourcePath
value doesn’t exist on the host container instance, the Docker daemon creates it. If the location does exist, the contents of the source path folder are exported.If you’re using the Fargate launch type, the
sourcePath
parameter is not supported.
dockerVolumeConfiguration (dict) –
This parameter is specified when you use Docker volumes.
Windows containers only support the use of the
local
driver. To use bind mounts, specify thehost
parameter instead.Note
Docker volumes aren’t supported by tasks run on Fargate.
scope (string) –
The scope for the Docker volume that determines its lifecycle. Docker volumes that are scoped to a
task
are automatically provisioned when the task starts and destroyed when the task stops. Docker volumes that are scoped asshared
persist after the task stops.autoprovision (boolean) –
If this value is
true
, the Docker volume is created if it doesn’t already exist.Note
This field is only used if the
scope
isshared
.driver (string) –
The Docker volume driver to use. The driver value must match the driver name provided by Docker because it is used for task placement. If the driver was installed using the Docker plugin CLI, use
docker plugin ls
to retrieve the driver name from your container instance. If the driver was installed using another method, use Docker plugin discovery to retrieve the driver name. For more information, see Docker plugin discovery. This parameter maps toDriver
in the Create a volume section of the Docker Remote API and thexxdriver
option to docker volume create.driverOpts (dict) –
A map of Docker driver-specific options passed through. This parameter maps to
DriverOpts
in the Create a volume section of the Docker Remote API and thexxopt
option to docker volume create.(string) –
(string) –
labels (dict) –
Custom metadata to add to your Docker volume. This parameter maps to
Labels
in the Create a volume section of the Docker Remote API and thexxlabel
option to docker volume create.(string) –
(string) –
efsVolumeConfiguration (dict) –
This parameter is specified when you use an Amazon Elastic File System file system for task storage.
fileSystemId (string) –
The Amazon EFS file system ID to use.
rootDirectory (string) –
The directory within the Amazon EFS file system to mount as the root directory inside the host. If this parameter is omitted, the root of the Amazon EFS volume will be used. Specifying
/
will have the same effect as omitting this parameter.Warning
If an EFS access point is specified in the
authorizationConfig
, the root directory parameter must either be omitted or set to/
which will enforce the path set on the EFS access point.transitEncryption (string) –
Determines whether to use encryption for Amazon EFS data in transit between the Amazon ECS host and the Amazon EFS server. Transit encryption must be turned on if Amazon EFS IAM authorization is used. If this parameter is omitted, the default value of
DISABLED
is used. For more information, see Encrypting data in transit in the Amazon Elastic File System User Guide.transitEncryptionPort (integer) –
The port to use when sending encrypted data between the Amazon ECS host and the Amazon EFS server. If you do not specify a transit encryption port, it will use the port selection strategy that the Amazon EFS mount helper uses. For more information, see EFS mount helper in the Amazon Elastic File System User Guide.
authorizationConfig (dict) –
The authorization configuration details for the Amazon EFS file system.
accessPointId (string) –
The Amazon EFS access point ID to use. If an access point is specified, the root directory value specified in the
EFSVolumeConfiguration
must either be omitted or set to/
which will enforce the path set on the EFS access point. If an access point is used, transit encryption must be on in theEFSVolumeConfiguration
. For more information, see Working with Amazon EFS access points in the Amazon Elastic File System User Guide.iam (string) –
Determines whether to use the Amazon ECS task role defined in a task definition when mounting the Amazon EFS file system. If it is turned on, transit encryption must be turned on in the
EFSVolumeConfiguration
. If this parameter is omitted, the default value ofDISABLED
is used. For more information, see Using Amazon EFS access points in the Amazon Elastic Container Service Developer Guide.
fsxWindowsFileServerVolumeConfiguration (dict) –
This parameter is specified when you use Amazon FSx for Windows File Server file system for task storage.
fileSystemId (string) –
The Amazon FSx for Windows File Server file system ID to use.
rootDirectory (string) –
The directory within the Amazon FSx for Windows File Server file system to mount as the root directory inside the host.
authorizationConfig (dict) –
The authorization configuration details for the Amazon FSx for Windows File Server file system.
credentialsParameter (string) –
The authorization credential option to use. The authorization credential options can be provided using either the Amazon Resource Name (ARN) of an Secrets Manager secret or SSM Parameter Store parameter. The ARN refers to the stored credentials.
domain (string) –
A fully qualified domain name hosted by an Directory Service Managed Microsoft AD (Active Directory) or self-hosted AD on Amazon EC2.
status (string) –
The status of the task definition.
requiresAttributes (list) –
The container instance attributes required by your task. When an Amazon EC2 instance is registered to your cluster, the Amazon ECS container agent assigns some standard attributes to the instance. You can apply custom attributes. These are specified as key-value pairs using the Amazon ECS console or the PutAttributes API. These attributes are used when determining task placement for tasks hosted on Amazon EC2 instances. For more information, see Attributes in the Amazon Elastic Container Service Developer Guide.
Note
This parameter isn’t supported for tasks run on Fargate.
(dict) –
An attribute is a name-value pair that’s associated with an Amazon ECS object. Use attributes to extend the Amazon ECS data model by adding custom metadata to your resources. For more information, see Attributes in the Amazon Elastic Container Service Developer Guide.
name (string) –
The name of the attribute. The
name
must contain between 1 and 128 characters. The name may contain letters (uppercase and lowercase), numbers, hyphens (-), underscores (_), forward slashes (/), back slashes (), or periods (.).value (string) –
The value of the attribute. The
value
must contain between 1 and 128 characters. It can contain letters (uppercase and lowercase), numbers, hyphens (-), underscores (_), periods (.), at signs (@), forward slashes (/), back slashes (), colons (:), or spaces. The value can’t start or end with a space.targetType (string) –
The type of the target to attach the attribute with. This parameter is required if you use the short form ID for a resource instead of the full ARN.
targetId (string) –
The ID of the target. You can specify the short form ID for a resource or the full Amazon Resource Name (ARN).
placementConstraints (list) –
An array of placement constraint objects to use for tasks.
Note
This parameter isn’t supported for tasks run on Fargate.
(dict) –
The constraint on task placement in the task definition. For more information, see Task placement constraints in the Amazon Elastic Container Service Developer Guide.
Note
Task placement constraints aren’t supported for tasks run on Fargate.
type (string) –
The type of constraint. The
MemberOf
constraint restricts selection to be from a group of valid candidates.expression (string) –
A cluster query language expression to apply to the constraint. For more information, see Cluster query language in the Amazon Elastic Container Service Developer Guide.
compatibilities (list) –
The task launch types the task definition validated against during task definition registration. For more information, see Amazon ECS launch types in the Amazon Elastic Container Service Developer Guide.
(string) –
runtimePlatform (dict) –
The operating system that your task definitions are running on. A platform family is specified only for tasks using the Fargate launch type.
When you specify a task in a service, this value must match the
runtimePlatform
value of the service.cpuArchitecture (string) –
The CPU architecture.
You can run your Linux tasks on an ARM-based platform by setting the value to
ARM64
. This option is available for tasks that run on Linux Amazon EC2 instance or Linux containers on Fargate.operatingSystemFamily (string) –
The operating system.
requiresCompatibilities (list) –
The task launch types the task definition was validated against. The valid values are
EC2
,FARGATE
, andEXTERNAL
. For more information, see Amazon ECS launch types in the Amazon Elastic Container Service Developer Guide.(string) –
cpu (string) –
The number of
cpu
units used by the task. If you use the EC2 launch type, this field is optional. Any value can be used. If you use the Fargate launch type, this field is required. You must use one of the following values. The value that you choose determines your range of valid values for thememory
parameter.The CPU units cannot be less than 1 vCPU when you use Windows containers on Fargate.
256 (.25 vCPU) - Available
memory
values: 512 (0.5 GB), 1024 (1 GB), 2048 (2 GB)512 (.5 vCPU) - Available
memory
values: 1024 (1 GB), 2048 (2 GB), 3072 (3 GB), 4096 (4 GB)1024 (1 vCPU) - Available
memory
values: 2048 (2 GB), 3072 (3 GB), 4096 (4 GB), 5120 (5 GB), 6144 (6 GB), 7168 (7 GB), 8192 (8 GB)2048 (2 vCPU) - Available
memory
values: 4096 (4 GB) and 16384 (16 GB) in increments of 1024 (1 GB)4096 (4 vCPU) - Available
memory
values: 8192 (8 GB) and 30720 (30 GB) in increments of 1024 (1 GB)8192 (8 vCPU) - Available
memory
values: 16 GB and 60 GB in 4 GB increments This option requires Linux platform1.4.0
or later.16384 (16vCPU) - Available
memory
values: 32GB and 120 GB in 8 GB increments This option requires Linux platform1.4.0
or later.
memory (string) –
The amount (in MiB) of memory used by the task.
If your tasks runs on Amazon EC2 instances, you must specify either a task-level memory value or a container-level memory value. This field is optional and any value can be used. If a task-level memory value is specified, the container-level memory value is optional. For more information regarding container-level memory and memory reservation, see ContainerDefinition.
If your tasks runs on Fargate, this field is required. You must use one of the following values. The value you choose determines your range of valid values for the
cpu
parameter.512 (0.5 GB), 1024 (1 GB), 2048 (2 GB) - Available
cpu
values: 256 (.25 vCPU)1024 (1 GB), 2048 (2 GB), 3072 (3 GB), 4096 (4 GB) - Available
cpu
values: 512 (.5 vCPU)2048 (2 GB), 3072 (3 GB), 4096 (4 GB), 5120 (5 GB), 6144 (6 GB), 7168 (7 GB), 8192 (8 GB) - Available
cpu
values: 1024 (1 vCPU)Between 4096 (4 GB) and 16384 (16 GB) in increments of 1024 (1 GB) - Available
cpu
values: 2048 (2 vCPU)Between 8192 (8 GB) and 30720 (30 GB) in increments of 1024 (1 GB) - Available
cpu
values: 4096 (4 vCPU)Between 16 GB and 60 GB in 4 GB increments - Available
cpu
values: 8192 (8 vCPU) This option requires Linux platform1.4.0
or later.Between 32GB and 120 GB in 8 GB increments - Available
cpu
values: 16384 (16 vCPU) This option requires Linux platform1.4.0
or later.
inferenceAccelerators (list) –
The Elastic Inference accelerator that’s associated with the task.
(dict) –
Details on an Elastic Inference accelerator. For more information, see Working with Amazon Elastic Inference on Amazon ECS in the Amazon Elastic Container Service Developer Guide.
deviceName (string) –
The Elastic Inference accelerator device name. The
deviceName
must also be referenced in a container definition as a ResourceRequirement.deviceType (string) –
The Elastic Inference accelerator type to use.
pidMode (string) –
The process namespace to use for the containers in the task. The valid values are
host
ortask
. Ifhost
is specified, then all containers within the tasks that specified thehost
PID mode on the same container instance share the same process namespace with the host Amazon EC2 instance. Iftask
is specified, all containers within the specified task share the same process namespace. If no value is specified, the default is a private namespace. For more information, see PID settings in the Docker run reference.If the
host
PID mode is used, be aware that there is a heightened risk of undesired process namespace expose. For more information, see Docker security.Note
This parameter is not supported for Windows containers or tasks run on Fargate.
ipcMode (string) –
The IPC resource namespace to use for the containers in the task. The valid values are
host
,task
, ornone
. Ifhost
is specified, then all containers within the tasks that specified thehost
IPC mode on the same container instance share the same IPC resources with the host Amazon EC2 instance. Iftask
is specified, all containers within the specified task share the same IPC resources. Ifnone
is specified, then IPC resources within the containers of a task are private and not shared with other containers in a task or on the container instance. If no value is specified, then the IPC resource namespace sharing depends on the Docker daemon setting on the container instance. For more information, see IPC settings in the Docker run reference.If the
host
IPC mode is used, be aware that there is a heightened risk of undesired IPC namespace expose. For more information, see Docker security.If you are setting namespaced kernel parameters using
systemControls
for the containers in the task, the following will apply to your IPC resource namespace. For more information, see System Controls in the Amazon Elastic Container Service Developer Guide.For tasks that use the
host
IPC mode, IPC namespace relatedsystemControls
are not supported.For tasks that use the
task
IPC mode, IPC namespace relatedsystemControls
will apply to all containers within a task.
Note
This parameter is not supported for Windows containers or tasks run on Fargate.
proxyConfiguration (dict) –
The configuration details for the App Mesh proxy.
Your Amazon ECS container instances require at least version 1.26.0 of the container agent and at least version 1.26.0-1 of the
ecs-init
package to use a proxy configuration. If your container instances are launched from the Amazon ECS optimized AMI version20190301
or later, they contain the required versions of the container agent andecs-init
. For more information, see Amazon ECS-optimized Linux AMI in the Amazon Elastic Container Service Developer Guide.type (string) –
The proxy type. The only supported value is
APPMESH
.containerName (string) –
The name of the container that will serve as the App Mesh proxy.
properties (list) –
The set of network configuration parameters to provide the Container Network Interface (CNI) plugin, specified as key-value pairs.
IgnoredUID
- (Required) The user ID (UID) of the proxy container as defined by theuser
parameter in a container definition. This is used to ensure the proxy ignores its own traffic. IfIgnoredGID
is specified, this field can be empty.IgnoredGID
- (Required) The group ID (GID) of the proxy container as defined by theuser
parameter in a container definition. This is used to ensure the proxy ignores its own traffic. IfIgnoredUID
is specified, this field can be empty.AppPorts
- (Required) The list of ports that the application uses. Network traffic to these ports is forwarded to theProxyIngressPort
andProxyEgressPort
.ProxyIngressPort
- (Required) Specifies the port that incoming traffic to theAppPorts
is directed to.ProxyEgressPort
- (Required) Specifies the port that outgoing traffic from theAppPorts
is directed to.EgressIgnoredPorts
- (Required) The egress traffic going to the specified ports is ignored and not redirected to theProxyEgressPort
. It can be an empty list.EgressIgnoredIPs
- (Required) The egress traffic going to the specified IP addresses is ignored and not redirected to theProxyEgressPort
. It can be an empty list.
(dict) –
A key-value pair object.
name (string) –
The name of the key-value pair. For environment variables, this is the name of the environment variable.
value (string) –
The value of the key-value pair. For environment variables, this is the value of the environment variable.
registeredAt (datetime) –
The Unix timestamp for the time when the task definition was registered.
deregisteredAt (datetime) –
The Unix timestamp for the time when the task definition was deregistered.
registeredBy (string) –
The principal that registered the task definition.
ephemeralStorage (dict) –
The ephemeral storage settings to use for tasks run with the task definition.
sizeInGiB (integer) –
The total amount, in GiB, of ephemeral storage to set for the task. The minimum supported value is
21
GiB and the maximum supported value is200
GiB.
tags (list) –
The list of tags associated with the task definition.
(dict) –
The metadata that you apply to a resource to help you categorize and organize them. Each tag consists of a key and an optional value. You define them.
The following basic restrictions apply to tags:
Maximum number of tags per resource - 50
For each resource, each tag key must be unique, and each tag key can have only one value.
Maximum key length - 128 Unicode characters in UTF-8
Maximum value length - 256 Unicode characters in UTF-8
If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.
Tag keys and values are case-sensitive.
Do not use
aws:
,AWS:
, or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for Amazon Web Services use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.
key (string) –
One part of a key-value pair that make up a tag. A
key
is a general label that acts like a category for more specific tag values.value (string) –
The optional part of a key-value pair that make up a tag. A
value
acts as a descriptor within a tag category (key).
Exceptions
ECS.Client.exceptions.ServerException
ECS.Client.exceptions.ClientException
ECS.Client.exceptions.InvalidParameterException
Examples
This example registers a task definition to the specified family.
response = client.register_task_definition( containerDefinitions=[ { 'name': 'sleep', 'command': [ 'sleep', '360', ], 'cpu': 10, 'essential': True, 'image': 'busybox', 'memory': 10, }, ], family='sleep360', taskRoleArn='', volumes=[ ], ) print(response)
Expected Output:
{ 'taskDefinition': { 'containerDefinitions': [ { 'name': 'sleep', 'command': [ 'sleep', '360', ], 'cpu': 10, 'environment': [ ], 'essential': True, 'image': 'busybox', 'memory': 10, 'mountPoints': [ ], 'portMappings': [ ], 'volumesFrom': [ ], }, ], 'family': 'sleep360', 'revision': 1, 'taskDefinitionArn': 'arn:aws:ecs:us-east-1:<aws_account_id>:task-definition/sleep360:19', 'volumes': [ ], }, 'ResponseMetadata': { '...': '...', }, }