ECS / Client / create_cluster

create_cluster#

ECS.Client.create_cluster(**kwargs)#

Creates a new Amazon ECS cluster. By default, your account receives a default cluster when you launch your first container instance. However, you can create your own cluster with a unique name with the CreateCluster action.

Note

When you call the CreateCluster API operation, Amazon ECS attempts to create the Amazon ECS service-linked role for your account. This is so that it can manage required resources in other Amazon Web Services services on your behalf. However, if the user that makes the call doesn’t have permissions to create the service-linked role, it isn’t created. For more information, see Using service-linked roles for Amazon ECS in the Amazon Elastic Container Service Developer Guide.

Request Syntax

response = client.create_cluster(
    clusterName='string',
    tags=[
        {
            'key': 'string',
            'value': 'string'
        },
    ],
    settings=[
        {
            'name': 'containerInsights',
            'value': 'string'
        },
    ],
    configuration={
        'executeCommandConfiguration': {
            'kmsKeyId': 'string',
            'logging': 'NONE'|'DEFAULT'|'OVERRIDE',
            'logConfiguration': {
                'cloudWatchLogGroupName': 'string',
                'cloudWatchEncryptionEnabled': True|False,
                's3BucketName': 'string',
                's3EncryptionEnabled': True|False,
                's3KeyPrefix': 'string'
            }
        }
    },
    capacityProviders=[
        'string',
    ],
    defaultCapacityProviderStrategy=[
        {
            'capacityProvider': 'string',
            'weight': 123,
            'base': 123
        },
    ],
    serviceConnectDefaults={
        'namespace': 'string'
    }
)

Parameters:

clusterName (string) – The name of your cluster. If you don’t specify a name for your cluster, you create a cluster that’s named default. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed.
tags (list) –
The metadata that you apply to the cluster to help you categorize and organize them. Each tag consists of a key and an optional value. You define both.

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).
settings (list) –
The setting to use when creating a cluster. This parameter is used to turn on CloudWatch Container Insights for a cluster. If this value is specified, it overrides the containerInsights value set with PutAccountSetting or PutAccountSettingDefault.
- (dict) –
  
  The settings to use when creating a cluster. This parameter is used to turn on CloudWatch Container Insights for a cluster.
  - name (string) –
    
    The name of the cluster setting. The value is containerInsights .
  - value (string) –
    
    The value to set for the cluster setting. The supported values are enabled and disabled.
    
    If you set name to containerInsights and value to enabled, CloudWatch Container Insights will be on for the cluster, otherwise it will be off unless the containerInsights account setting is turned on. If a cluster value is specified, it will override the containerInsights value set with PutAccountSetting or PutAccountSettingDefault.
configuration (dict) –
The execute command configuration for the cluster.
- executeCommandConfiguration (dict) –
  
  The details of the execute command configuration.
  - kmsKeyId (string) –
    
    Specify an Key Management Service key ID to encrypt the data between the local client and the container.
  - logging (string) –
    
    The log setting to use for redirecting logs for your execute command results. The following log settings are available.
    - NONE: The execute command session is not logged.
    - DEFAULT: The awslogs configuration in the task definition is used. If no logging parameter is specified, it defaults to this value. If no awslogs log driver is configured in the task definition, the output won’t be logged.
    - OVERRIDE: Specify the logging details as a part of logConfiguration. If the OVERRIDE logging option is specified, the logConfiguration is required.
  - logConfiguration (dict) –
    
    The log configuration for the results of the execute command actions. The logs can be sent to CloudWatch Logs or an Amazon S3 bucket. When logging=OVERRIDE is specified, a logConfiguration must be provided.
    - cloudWatchLogGroupName (string) –
      
      The name of the CloudWatch log group to send logs to.
      
      Note
      The CloudWatch log group must already be created.
    - cloudWatchEncryptionEnabled (boolean) –
      
      Determines whether to use encryption on the CloudWatch logs. If not specified, encryption will be off.
    - s3BucketName (string) –
      
      The name of the S3 bucket to send logs to.
      
      Note
      The S3 bucket must already be created.
    - s3EncryptionEnabled (boolean) –
      
      Determines whether to use encryption on the S3 logs. If not specified, encryption is not used.
    - s3KeyPrefix (string) –
      
      An optional folder in the S3 bucket to place logs in.
capacityProviders (list) –
The short name of one or more capacity providers to associate with the cluster. A capacity provider must be associated with a cluster before it can be included as part of the default capacity provider strategy of the cluster or used in a capacity provider strategy when calling the CreateService or RunTask actions.

If specifying a capacity provider that uses an Auto Scaling group, the capacity provider must be created but not associated with another cluster. New Auto Scaling group capacity providers can be created with the CreateCapacityProvider API operation.

To use a Fargate capacity provider, specify either the FARGATE or FARGATE_SPOT capacity providers. The Fargate capacity providers are available to all accounts and only need to be associated with a cluster to be used.

The PutCapacityProvider API operation is used to update the list of available capacity providers for a cluster after the cluster is created.
- (string) –
defaultCapacityProviderStrategy (list) –
The capacity provider strategy to set as the default for the cluster. After a default capacity provider strategy is set for a cluster, when you call the CreateService or RunTask APIs with no capacity provider strategy or launch type specified, the default capacity provider strategy for the cluster is used.

If a default capacity provider strategy isn’t defined for a cluster when it was created, it can be defined later with the PutClusterCapacityProviders API operation.
- (dict) –
  
  The details of a capacity provider strategy. A capacity provider strategy can be set when using the RunTask or CreateCluster APIs or as the default capacity provider strategy for a cluster with the CreateCluster API.
  
  Only capacity providers that are already associated with a cluster and have an ACTIVE or UPDATING status can be used in a capacity provider strategy. The PutClusterCapacityProviders API is used to associate a capacity provider with a cluster.
  
  If specifying a capacity provider that uses an Auto Scaling group, the capacity provider must already be created. New Auto Scaling group capacity providers can be created with the CreateCapacityProvider API operation.
  
  To use a Fargate capacity provider, specify either the FARGATE or FARGATE_SPOT capacity providers. The Fargate capacity providers are available to all accounts and only need to be associated with a cluster to be used in a capacity provider strategy.
  
  A capacity provider strategy may contain a maximum of 6 capacity providers.
  - capacityProvider (string) – [REQUIRED]
    
    The short name of the capacity provider.
  - weight (integer) –
    
    The weight value designates the relative percentage of the total number of tasks launched that should use the specified capacity provider. The weight value is taken into consideration after the base value, if defined, is satisfied.
    
    If no weight value is specified, the default value of 0 is used. When multiple capacity providers are specified within a capacity provider strategy, at least one of the capacity providers must have a weight value greater than zero and any capacity providers with a weight of 0 can’t be used to place tasks. If you specify multiple capacity providers in a strategy that all have a weight of 0, any RunTask or CreateService actions using the capacity provider strategy will fail.
    
    An example scenario for using weights is defining a strategy that contains two capacity providers and both have a weight of 1, then when the base is satisfied, the tasks will be split evenly across the two capacity providers. Using that same logic, if you specify a weight of 1 for capacityProviderA and a weight of 4 for capacityProviderB, then for every one task that’s run using capacityProviderA, four tasks would use capacityProviderB.
  - base (integer) –
    
    The base value designates how many tasks, at a minimum, to run on the specified capacity provider. Only one capacity provider in a capacity provider strategy can have a base defined. If no value is specified, the default value of 0 is used.
serviceConnectDefaults (dict) –
Use this parameter to set a default Service Connect namespace. After you set a default Service Connect namespace, any new services with Service Connect turned on that are created in the cluster are added as client services in the namespace. This setting only applies to new services that set the enabled parameter to true in the ServiceConnectConfiguration. You can set the namespace of each service individually in the ServiceConnectConfiguration to override this default parameter.

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.
- namespace (string) – [REQUIRED]
  
  The namespace name or full Amazon Resource Name (ARN) of the Cloud Map namespace that’s used when you create a service and don’t specify a Service Connect configuration. The namespace name can include up to 1024 characters. The name is case-sensitive. The name can’t include hyphens (-), tilde (~), greater than (>), less than (<), or slash (/).
  
  If you enter an existing namespace name or ARN, then that namespace will be used. Any namespace type is supported. The namespace must be in this account and this Amazon Web Services Region.
  
  If you enter a new name, a Cloud Map namespace will be created. Amazon ECS creates a Cloud Map namespace with the “API calls” method of instance discovery only. This instance discovery method is the “HTTP” namespace type in the Command Line Interface. Other types of instance discovery aren’t used by Service Connect.
  
  If you update the cluster with an empty string "" for the namespace name, the cluster configuration for Service Connect is removed. Note that the namespace will remain in Cloud Map and must be deleted separately.
  
  For more information about Cloud Map, see Working with Services in the Cloud Map Developer Guide.

Return type:

dict

Returns:

Response Syntax

{
    'cluster': {
        'clusterArn': 'string',
        'clusterName': 'string',
        'configuration': {
            'executeCommandConfiguration': {
                'kmsKeyId': 'string',
                'logging': 'NONE'|'DEFAULT'|'OVERRIDE',
                'logConfiguration': {
                    'cloudWatchLogGroupName': 'string',
                    'cloudWatchEncryptionEnabled': True|False,
                    's3BucketName': 'string',
                    's3EncryptionEnabled': True|False,
                    's3KeyPrefix': 'string'
                }
            }
        },
        'status': 'string',
        'registeredContainerInstancesCount': 123,
        'runningTasksCount': 123,
        'pendingTasksCount': 123,
        'activeServicesCount': 123,
        'statistics': [
            {
                'name': 'string',
                'value': 'string'
            },
        ],
        'tags': [
            {
                'key': 'string',
                'value': 'string'
            },
        ],
        'settings': [
            {
                'name': 'containerInsights',
                'value': 'string'
            },
        ],
        'capacityProviders': [
            'string',
        ],
        'defaultCapacityProviderStrategy': [
            {
                'capacityProvider': 'string',
                'weight': 123,
                'base': 123
            },
        ],
        'attachments': [
            {
                'id': 'string',
                'type': 'string',
                'status': 'string',
                'details': [
                    {
                        'name': 'string',
                        'value': 'string'
                    },
                ]
            },
        ],
        'attachmentsStatus': 'string',
        'serviceConnectDefaults': {
            'namespace': 'string'
        }
    }
}

Response Structure

(dict) –
- cluster (dict) –
  
  The full description of your new cluster.
  - clusterArn (string) –
    
    The Amazon Resource Name (ARN) that identifies the cluster. For more information about the ARN format, see Amazon Resource Name (ARN) in the Amazon ECS Developer Guide.
  - clusterName (string) –
    
    A user-generated string that you use to identify your cluster.
  - configuration (dict) –
    
    The execute command configuration for the cluster.
    - executeCommandConfiguration (dict) –
      
      The details of the execute command configuration.
      - kmsKeyId (string) –
        
        Specify an Key Management Service key ID to encrypt the data between the local client and the container.
      - logging (string) –
        
        The log setting to use for redirecting logs for your execute command results. The following log settings are available.
        
        NONE: The execute command session is not logged.
        
        DEFAULT: The awslogs configuration in the task definition is used. If no logging parameter is specified, it defaults to this value. If no awslogs log driver is configured in the task definition, the output won’t be logged.
        
        OVERRIDE: Specify the logging details as a part of logConfiguration. If the OVERRIDE logging option is specified, the logConfiguration is required.
      - logConfiguration (dict) –
        
        The log configuration for the results of the execute command actions. The logs can be sent to CloudWatch Logs or an Amazon S3 bucket. When logging=OVERRIDE is specified, a logConfiguration must be provided.
        
        cloudWatchLogGroupName (string) –
        
        The name of the CloudWatch log group to send logs to.
        
        Note
        The CloudWatch log group must already be created.
        
        cloudWatchEncryptionEnabled (boolean) –
        
        Determines whether to use encryption on the CloudWatch logs. If not specified, encryption will be off.
        
        s3BucketName (string) –
        
        The name of the S3 bucket to send logs to.
        
        Note
        The S3 bucket must already be created.
        
        s3EncryptionEnabled (boolean) –
        
        Determines whether to use encryption on the S3 logs. If not specified, encryption is not used.
        
        s3KeyPrefix (string) –
        
        An optional folder in the S3 bucket to place logs in.
  - status (string) –
    
    The status of the cluster. The following are the possible states that are returned.
    
    ACTIVE
    
    The cluster is ready to accept tasks and if applicable you can register container instances with the cluster.
    
    PROVISIONING
    
    The cluster has capacity providers that are associated with it and the resources needed for the capacity provider are being created.
    
    DEPROVISIONING
    
    The cluster has capacity providers that are associated with it and the resources needed for the capacity provider are being deleted.
    
    FAILED
    
    The cluster has capacity providers that are associated with it and the resources needed for the capacity provider have failed to create.
    
    INACTIVE
    
    The cluster has been deleted. Clusters with an INACTIVE status may remain discoverable in your account for a period of time. However, this behavior is subject to change in the future. We don’t recommend that you rely on INACTIVE clusters persisting.
  - registeredContainerInstancesCount (integer) –
    
    The number of container instances registered into the cluster. This includes container instances in both ACTIVE and DRAINING status.
  - runningTasksCount (integer) –
    
    The number of tasks in the cluster that are in the RUNNING state.
  - pendingTasksCount (integer) –
    
    The number of tasks in the cluster that are in the PENDING state.
  - activeServicesCount (integer) –
    
    The number of services that are running on the cluster in an ACTIVE state. You can view these services with ListServices.
  - statistics (list) –
    
    Additional information about your clusters that are separated by launch type. They include the following:
    - runningEC2TasksCount
    - RunningFargateTasksCount
    - pendingEC2TasksCount
    - pendingFargateTasksCount
    - activeEC2ServiceCount
    - activeFargateServiceCount
    - drainingEC2ServiceCount
    - drainingFargateServiceCount
    - (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.
  - tags (list) –
    
    The metadata that you apply to the cluster to help you categorize and organize them. Each tag consists of a key and an optional value. You define both.
    
    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).
  - settings (list) –
    
    The settings for the cluster. This parameter indicates whether CloudWatch Container Insights is on or off for a cluster.
    - (dict) –
      
      The settings to use when creating a cluster. This parameter is used to turn on CloudWatch Container Insights for a cluster.
      - name (string) –
        
        The name of the cluster setting. The value is containerInsights .
      - value (string) –
        
        The value to set for the cluster setting. The supported values are enabled and disabled.
        
        If you set name to containerInsights and value to enabled, CloudWatch Container Insights will be on for the cluster, otherwise it will be off unless the containerInsights account setting is turned on. If a cluster value is specified, it will override the containerInsights value set with PutAccountSetting or PutAccountSettingDefault.
  - capacityProviders (list) –
    
    The capacity providers associated with the cluster.
    - (string) –
  - defaultCapacityProviderStrategy (list) –
    
    The default capacity provider strategy for the cluster. When services or tasks are run in the cluster with no launch type or capacity provider strategy specified, the default capacity provider strategy is used.
    - (dict) –
      
      The details of a capacity provider strategy. A capacity provider strategy can be set when using the RunTask or CreateCluster APIs or as the default capacity provider strategy for a cluster with the CreateCluster API.
      
      Only capacity providers that are already associated with a cluster and have an ACTIVE or UPDATING status can be used in a capacity provider strategy. The PutClusterCapacityProviders API is used to associate a capacity provider with a cluster.
      
      If specifying a capacity provider that uses an Auto Scaling group, the capacity provider must already be created. New Auto Scaling group capacity providers can be created with the CreateCapacityProvider API operation.
      
      To use a Fargate capacity provider, specify either the FARGATE or FARGATE_SPOT capacity providers. The Fargate capacity providers are available to all accounts and only need to be associated with a cluster to be used in a capacity provider strategy.
      
      A capacity provider strategy may contain a maximum of 6 capacity providers.
      - capacityProvider (string) –
        
        The short name of the capacity provider.
      - weight (integer) –
        
        The weight value designates the relative percentage of the total number of tasks launched that should use the specified capacity provider. The weight value is taken into consideration after the base value, if defined, is satisfied.
        
        If no weight value is specified, the default value of 0 is used. When multiple capacity providers are specified within a capacity provider strategy, at least one of the capacity providers must have a weight value greater than zero and any capacity providers with a weight of 0 can’t be used to place tasks. If you specify multiple capacity providers in a strategy that all have a weight of 0, any RunTask or CreateService actions using the capacity provider strategy will fail.
        
        An example scenario for using weights is defining a strategy that contains two capacity providers and both have a weight of 1, then when the base is satisfied, the tasks will be split evenly across the two capacity providers. Using that same logic, if you specify a weight of 1 for capacityProviderA and a weight of 4 for capacityProviderB, then for every one task that’s run using capacityProviderA, four tasks would use capacityProviderB.
      - base (integer) –
        
        The base value designates how many tasks, at a minimum, to run on the specified capacity provider. Only one capacity provider in a capacity provider strategy can have a base defined. If no value is specified, the default value of 0 is used.
  - attachments (list) –
    
    The resources attached to a cluster. When using a capacity provider with a cluster, the capacity provider and associated resources are returned as cluster attachments.
    - (dict) –
      
      An object representing a container instance or task attachment.
      - id (string) –
        
        The unique identifier for the attachment.
      - type (string) –
        
        The type of the attachment, such as ElasticNetworkInterface, Service Connect, and AmazonElasticBlockStorage.
      - status (string) –
        
        The status of the attachment. Valid values are PRECREATED, CREATED, ATTACHING, ATTACHED, DETACHING, DETACHED, DELETED, and FAILED.
      - details (list) –
        
        Details of the attachment.
        
        For elastic network interfaces, this includes the network interface ID, the MAC address, the subnet ID, and the private IPv4 address.
        
        For Service Connect services, this includes portName, clientAliases, discoveryName, and ingressPortOverride.
        
        For elastic block storage, this includes roleArn, encrypted, filesystemType, iops, kmsKeyId, sizeInGiB, snapshotId, tagSpecifications, throughput, and volumeType.
        
        (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.
  - attachmentsStatus (string) –
    
    The status of the capacity providers associated with the cluster. The following are the states that are returned.
    
    UPDATE_IN_PROGRESS
    
    The available capacity providers for the cluster are updating.
    
    UPDATE_COMPLETE
    
    The capacity providers have successfully updated.
    
    UPDATE_FAILED
    
    The capacity provider updates failed.
  - serviceConnectDefaults (dict) –
    
    Use this parameter to set a default Service Connect namespace. After you set a default Service Connect namespace, any new services with Service Connect turned on that are created in the cluster are added as client services in the namespace. This setting only applies to new services that set the enabled parameter to true in the ServiceConnectConfiguration. You can set the namespace of each service individually in the ServiceConnectConfiguration to override this default parameter.
    
    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.
    - namespace (string) –
      
      The namespace name or full Amazon Resource Name (ARN) of the Cloud Map namespace. When you create a service and don’t specify a Service Connect configuration, this namespace is used.

Exceptions

ECS.Client.exceptions.ServerException
ECS.Client.exceptions.ClientException
ECS.Client.exceptions.InvalidParameterException
ECS.Client.exceptions.NamespaceNotFoundException

Examples

This example creates a cluster in your default region.

response = client.create_cluster(
    clusterName='my_cluster',
)

print(response)

Expected Output:

{
    'cluster': {
        'activeServicesCount': 0,
        'clusterArn': 'arn:aws:ecs:us-east-1:012345678910:cluster/my_cluster',
        'clusterName': 'my_cluster',
        'pendingTasksCount': 0,
        'registeredContainerInstancesCount': 0,
        'runningTasksCount': 0,
        'status': 'ACTIVE',
    },
    'ResponseMetadata': {
        '...': '...',
    },
}