OpsWorks / Client / describe_load_based_auto_scaling

describe_load_based_auto_scaling#

OpsWorks.Client.describe_load_based_auto_scaling(**kwargs)#

Describes load-based auto scaling configurations for specified layers.

Note

You must specify at least one of the parameters.

Required Permissions: To use this action, an IAM user must have a Show, Deploy, or Manage permissions level for the stack, or an attached policy that explicitly grants permissions. For more information about user permissions, see Managing User Permissions.

Request Syntax

response = client.describe_load_based_auto_scaling(
    LayerIds=[
        'string',
    ]
)

Parameters:

LayerIds (list) –

[REQUIRED]

An array of layer IDs.

(string) –

Return type:

dict

Returns:

Response Syntax

{
    'LoadBasedAutoScalingConfigurations': [
        {
            'LayerId': 'string',
            'Enable': True|False,
            'UpScaling': {
                'InstanceCount': 123,
                'ThresholdsWaitTime': 123,
                'IgnoreMetricsTime': 123,
                'CpuThreshold': 123.0,
                'MemoryThreshold': 123.0,
                'LoadThreshold': 123.0,
                'Alarms': [
                    'string',
                ]
            },
            'DownScaling': {
                'InstanceCount': 123,
                'ThresholdsWaitTime': 123,
                'IgnoreMetricsTime': 123,
                'CpuThreshold': 123.0,
                'MemoryThreshold': 123.0,
                'LoadThreshold': 123.0,
                'Alarms': [
                    'string',
                ]
            }
        },
    ]
}

Response Structure

(dict) –

Contains the response to a DescribeLoadBasedAutoScaling request.
- LoadBasedAutoScalingConfigurations (list) –
  
  An array of LoadBasedAutoScalingConfiguration objects that describe each layer’s configuration.
  - (dict) –
    
    Describes a layer’s load-based auto scaling configuration.
    - LayerId (string) –
      
      The layer ID.
    - Enable (boolean) –
      
      Whether load-based auto scaling is enabled for the layer.
    - UpScaling (dict) –
      
      An AutoScalingThresholds object that describes the upscaling configuration, which defines how and when OpsWorks Stacks increases the number of instances.
      - InstanceCount (integer) –
        
        The number of instances to add or remove when the load exceeds a threshold.
      - ThresholdsWaitTime (integer) –
        
        The amount of time, in minutes, that the load must exceed a threshold before more instances are added or removed.
      - IgnoreMetricsTime (integer) –
        
        The amount of time (in minutes) after a scaling event occurs that OpsWorks Stacks should ignore metrics and suppress additional scaling events. For example, OpsWorks Stacks adds new instances following an upscaling event but the instances won’t start reducing the load until they have been booted and configured. There is no point in raising additional scaling events during that operation, which typically takes several minutes. IgnoreMetricsTime allows you to direct OpsWorks Stacks to suppress scaling events long enough to get the new instances online.
      - CpuThreshold (float) –
        
        The CPU utilization threshold, as a percent of the available CPU. A value of -1 disables the threshold.
      - MemoryThreshold (float) –
        
        The memory utilization threshold, as a percent of the available memory. A value of -1 disables the threshold.
      - LoadThreshold (float) –
        
        The load threshold. A value of -1 disables the threshold. For more information about how load is computed, see Load (computing).
      - Alarms (list) –
        
        Custom CloudWatch auto scaling alarms, to be used as thresholds. This parameter takes a list of up to five alarm names, which are case sensitive and must be in the same region as the stack.
        
        Note
        To use custom alarms, you must update your service role to allow cloudwatch:DescribeAlarms. You can either have OpsWorks Stacks update the role for you when you first use this feature or you can edit the role manually. For more information, see Allowing OpsWorks Stacks to Act on Your Behalf.
        
        (string) –
    - DownScaling (dict) –
      
      An AutoScalingThresholds object that describes the downscaling configuration, which defines how and when OpsWorks Stacks reduces the number of instances.
      - InstanceCount (integer) –
        
        The number of instances to add or remove when the load exceeds a threshold.
      - ThresholdsWaitTime (integer) –
        
        The amount of time, in minutes, that the load must exceed a threshold before more instances are added or removed.
      - IgnoreMetricsTime (integer) –
        
        The amount of time (in minutes) after a scaling event occurs that OpsWorks Stacks should ignore metrics and suppress additional scaling events. For example, OpsWorks Stacks adds new instances following an upscaling event but the instances won’t start reducing the load until they have been booted and configured. There is no point in raising additional scaling events during that operation, which typically takes several minutes. IgnoreMetricsTime allows you to direct OpsWorks Stacks to suppress scaling events long enough to get the new instances online.
      - CpuThreshold (float) –
        
        The CPU utilization threshold, as a percent of the available CPU. A value of -1 disables the threshold.
      - MemoryThreshold (float) –
        
        The memory utilization threshold, as a percent of the available memory. A value of -1 disables the threshold.
      - LoadThreshold (float) –
        
        The load threshold. A value of -1 disables the threshold. For more information about how load is computed, see Load (computing).
      - Alarms (list) –
        
        Custom CloudWatch auto scaling alarms, to be used as thresholds. This parameter takes a list of up to five alarm names, which are case sensitive and must be in the same region as the stack.
        
        Note
        To use custom alarms, you must update your service role to allow cloudwatch:DescribeAlarms. You can either have OpsWorks Stacks update the role for you when you first use this feature or you can edit the role manually. For more information, see Allowing OpsWorks Stacks to Act on Your Behalf.
        
        (string) –

Exceptions

OpsWorks.Client.exceptions.ValidationException
OpsWorks.Client.exceptions.ResourceNotFoundException