AWS CLI Command Reference

[ aws . ecs ]

put-cluster-capacity-providers

Description

Modifies the available capacity providers and the default capacity provider strategy for a cluster.

You must specify both the available capacity providers and a default capacity provider strategy for the cluster. If the specified cluster has existing capacity providers associated with it, you must specify all existing capacity providers in addition to any new ones you want to add. Any existing capacity providers that are associated with a cluster that are omitted from a PutClusterCapacityProviders API call will be disassociated with the cluster. You can only disassociate an existing capacity provider from a cluster if it’s not being used by any existing tasks.

When creating a service or running a task on a cluster, if no capacity provider or launch type is specified, then the cluster’s default capacity provider strategy is used. We recommend that you define a default capacity provider strategy for your cluster. However, you must specify an empty array ([] ) to bypass defining a default strategy.

See also: AWS API Documentation

Synopsis

  put-cluster-capacity-providers
--cluster <value>
--capacity-providers <value>
--default-capacity-provider-strategy <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]

Options

--cluster (string)

The short name or full Amazon Resource Name (ARN) of the cluster to modify the capacity provider settings for. If you don’t specify a cluster, the default cluster is assumed.

--capacity-providers (list)

The name of one or more capacity providers to associate with the cluster.

If specifying a capacity provider that uses an Auto Scaling group, the capacity provider must already be created. New 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.

(string)

Syntax:

"string" "string" ...

--default-capacity-provider-strategy (list)

The capacity provider strategy to use by default for the cluster.

When creating a service or running a task on a cluster, if no capacity provider or launch type is specified then the default capacity provider strategy for the cluster is used.

A capacity provider strategy consists of one or more capacity providers along with the base and weight to assign to them. A capacity provider must be associated with the cluster to be used in a capacity provider strategy. The PutClusterCapacityProviders API is used to associate a capacity provider with a cluster. Only capacity providers with an ACTIVE or UPDATING status can be used.

If specifying a capacity provider that uses an Auto Scaling group, the capacity provider must already be created. New 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.

(structure)

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 CreateClusterCapacityProvider 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.

With FARGATE_SPOT , you can run interruption tolerant tasks at a rate that’s discounted compared to the FARGATE price. FARGATE_SPOT runs tasks on spare compute capacity. When Amazon Web Services needs the capacity back, your tasks are interrupted with a two-minute warning. FARGATE_SPOT supports Linux tasks with the X86_64 architecture on platform version 1.3.0 or later. FARGATE_SPOT supports Linux tasks with the ARM64 architecture on platform version 1.4.0 or later.

A capacity provider strategy can contain a maximum of 20 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.

Shorthand Syntax:

capacityProvider=string,weight=integer,base=integer ...

JSON Syntax:

[
  {
    "capacityProvider": "string",
    "weight": integer,
    "base": integer
  }
  ...
]

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command’s default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.

--output (string)

The formatting style for command output.

  • json
  • text
  • table
  • yaml
  • yaml-stream

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

  • on
  • off
  • auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

  • base64
  • raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input parameters.

Examples

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

Example 1: To add an existing capacity provider to a cluster

The following put-cluster-capacity-providers example adds an existing capacity provider to a cluster. The create-capacity-provider command is used to create a capacity provider. The describe-clusters command is used to describe the current capacity providers and the default capacity provider strategy associated with a cluster. When adding a new capacity provider to a cluster, you must specify all existing capacity providers in addition to the new capacity provider you want to associate with the cluster. You must also specify the default capacity provider strategy to associate with the cluster. In this example, the MyCluster cluster has the MyCapacityProvider1 capacity provider associated with it and you want to add the MyCapacityProvider2 capacity provider and include it in the default capacity provider strategy so tasks are spread evenly across both capacity providers.

aws ecs put-cluster-capacity-providers \
    --cluster MyCluster \
    --capacity-providers MyCapacityProvider1 MyCapacityProvider2 \
    --default-capacity-provider-strategy capacityProvider=MyCapacityProvider1,weight=1 capacityProvider=MyCapacityProvider2,weight=1

Output:

{
    "cluster": {
        "clusterArn": "arn:aws:ecs:us-west-2:123456789012:cluster/MyCluster",
        "clusterName": "MyCluster",
        "status": "ACTIVE",
        "registeredContainerInstancesCount": 0,
        "runningTasksCount": 0,
        "pendingTasksCount": 0,
        "activeServicesCount": 0,
        "statistics": [],
        "tags": [],
        "settings": [
            {
                "name": "containerInsights",
                "value": "enabled"
            }
        ],
        "capacityProviders": [
            "MyCapacityProvider1",
            "MyCapacityProvider2"
        ],
        "defaultCapacityProviderStrategy": [
            {
                "capacityProvider": "MyCapacityProvider1",
                "weight": 1,
                "base": 0
            },
            {
                "capacityProvider": "MyCapacityProvider2",
                "weight": 1,
                "base": 0
            }
        ],
        "attachments": [
           {
                "id": "0fb0c8f4-6edd-4de1-9b09-17e470ee1918",
                "type": "as_policy",
                "status": "ACTIVE",
                "details": [
                    {
                        "name": "capacityProviderName",
                        "value": "MyCapacityProvider1"
                    },
                    {
                        "name": "scalingPolicyName",
                        "value": "ECSManagedAutoScalingPolicy-a1b2c3d4-5678-90ab-cdef-EXAMPLE11111"
                    }
                ]
            },
            {
                "id": "ae592060-2382-4663-9476-b015c685593c",
                "type": "as_policy",
                "status": "ACTIVE",
                "details": [
                    {
                        "name": "capacityProviderName",
                        "value": "MyCapacityProvider2"
                    },
                    {
                        "name": "scalingPolicyName",
                        "value": "ECSManagedAutoScalingPolicy-a1b2c3d4-5678-90ab-cdef-EXAMPLE22222"
                    }
                ]
            }
        ],
        "attachmentsStatus": "UPDATE_IN_PROGRESS"
    }
}

For more information, see Cluster capacity providers in the Amazon ECS Developer Guide.

Example 2: To remove a capacity provider from a cluster

The following put-cluster-capacity-providers example removes a capacity provider from a cluster. The describe-clusters command is used to describe the current capacity providers associated with a cluster. When removing a capacity provider from a cluster, you must specify the capacity providers you want to remain associated with the cluster as well as the default capacity provider strategy to associate with the cluster. In this example, the cluster has the MyCapacityProvider1 and MyCapacityProvider2 capacity providers associated with it and you want to remove the MyCapacityProvider2 capacity provider, so you specify only MyCapacityProvider1 in the command along with the updated default capacity provider strategy.

aws ecs put-cluster-capacity-providers \
    --cluster MyCluster \
    --capacity-providers MyCapacityProvider1 \
    --default-capacity-provider-strategy capacityProvider=MyCapacityProvider1,weight=1,base=0

Output:

{
    "cluster": {
        "clusterArn": "arn:aws:ecs:us-west-2:123456789012:cluster/MyCluster",
        "clusterName": "MyCluster",
        "status": "ACTIVE",
        "registeredContainerInstancesCount": 0,
        "runningTasksCount": 0,
        "pendingTasksCount": 0,
        "activeServicesCount": 0,
        "statistics": [],
        "tags": [],
        "settings": [
            {
                "name": "containerInsights",
                "value": "enabled"
            }
        ],
        "capacityProviders": [
            "MyCapacityProvider1"
        ],
        "defaultCapacityProviderStrategy": [
            "capacityProvider": "MyCapacityProvider1",
            "weight": 1,
            "base": 0
        ],
        "attachments": [
           {
                "id": "0fb0c8f4-6edd-4de1-9b09-17e470ee1918",
                "type": "as_policy",
                "status": "ACTIVE",
                "details": [
                    {
                        "name": "capacityProviderName",
                        "value": "MyCapacityProvider1"
                    },
                    {
                        "name": "scalingPolicyName",
                        "value": "ECSManagedAutoScalingPolicy-a1b2c3d4-5678-90ab-cdef-EXAMPLE11111"
                    }
                ]
            },
            {
                "id": "ae592060-2382-4663-9476-b015c685593c",
                "type": "as_policy",
                "status": "DELETING",
                "details": [
                    {
                        "name": "capacityProviderName",
                        "value": "MyCapacityProvider2"
                    },
                    {
                        "name": "scalingPolicyName",
                        "value": "ECSManagedAutoScalingPolicy-a1b2c3d4-5678-90ab-cdef-EXAMPLE22222"
                    }
                ]
            }
        ],
        "attachmentsStatus": "UPDATE_IN_PROGRESS"
    }
}

For more information, see Cluster capacity providers in the Amazon ECS Developer Guide.

Example 3: To remove all capacity providers from a cluster

The following put-cluster-capacity-providers example removes all existing capacity providers from the cluster.

aws ecs put-cluster-capacity-providers \
    --cluster MyCluster \
    --capacity-providers [] \
    --default-capacity-provider-strategy []

Output:

{
    "cluster": {
        "clusterArn": "arn:aws:ecs:us-west-2:123456789012:cluster/MyCluster",
        "clusterName": "MyCluster",
        "status": "ACTIVE",
        "registeredContainerInstancesCount": 0,
        "runningTasksCount": 0,
        "pendingTasksCount": 0,
        "activeServicesCount": 0,
        "statistics": [],
        "tags": [],
        "settings": [
            {
                "name": "containerInsights",
                "value": "enabled"
            }
        ],
        "capacityProviders": [],
        "defaultCapacityProviderStrategy": [],
        "attachments": [
           {
                "id": "0fb0c8f4-6edd-4de1-9b09-17e470ee1918",
                "type": "as_policy",
                "status": "DELETING",
                "details": [
                    {
                        "name": "capacityProviderName",
                        "value": "MyCapacityProvider1"
                    },
                    {
                        "name": "scalingPolicyName",
                        "value": "ECSManagedAutoScalingPolicy-a1b2c3d4-5678-90ab-cdef-EXAMPLE11111"
                    }
                ]
            },
            {
                "id": "ae592060-2382-4663-9476-b015c685593c",
                "type": "as_policy",
                "status": "DELETING",
                "details": [
                    {
                        "name": "capacityProviderName",
                        "value": "MyCapacityProvider2"
                    },
                    {
                        "name": "scalingPolicyName",
                        "value": "ECSManagedAutoScalingPolicy-a1b2c3d4-5678-90ab-cdef-EXAMPLE22222"
                    }
                ]
            }
        ],
        "attachmentsStatus": "UPDATE_IN_PROGRESS"
    }
}

For more information, see Cluster capacity providers in the Amazon ECS Developer Guide.

Output

cluster -> (structure)

Details about the 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 -> (structure)

The execute command configuration for the cluster.

executeCommandConfiguration -> (structure)

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 -> (structure)

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.

managedStorageConfiguration -> (structure)

The details of the managed storage configuration.

kmsKeyId -> (string)

Specify a Key Management Service key ID to encrypt the managed storage.

fargateEphemeralStorageKmsKeyId -> (string)

Specify the Key Management Service key ID for the Fargate ephemeral storage.

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 PListServices .

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

(structure)

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.

(structure)

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.

(structure)

The settings to use when creating a cluster. This parameter is used to turn on CloudWatch Container Insights with enhanced observability or CloudWatch Container Insights for a cluster.

Container Insights with enhanced observability provides all the Container Insights metrics, plus additional task and container metrics. This version supports enhanced observability for Amazon ECS clusters using the Amazon EC2 and Fargate launch types. After you configure Container Insights with enhanced observability on Amazon ECS, Container Insights auto-collects detailed infrastructure telemetry from the cluster level down to the container level in your environment and displays these critical performance data in curated dashboards removing the heavy lifting in observability set-up.

For more information, see Monitor Amazon ECS containers using Container Insights with enhanced observability in the Amazon Elastic Container Service Developer Guide .

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 enhanced , enabled , and disabled .

To use Container Insights with enhanced observability, set the containerInsights account setting to enhanced .

To use Container Insights, set the containerInsights account setting to enabled .

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.

(structure)

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 CreateClusterCapacityProvider 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.

With FARGATE_SPOT , you can run interruption tolerant tasks at a rate that’s discounted compared to the FARGATE price. FARGATE_SPOT runs tasks on spare compute capacity. When Amazon Web Services needs the capacity back, your tasks are interrupted with a two-minute warning. FARGATE_SPOT supports Linux tasks with the X86_64 architecture on platform version 1.3.0 or later. FARGATE_SPOT supports Linux tasks with the ARM64 architecture on platform version 1.4.0 or later.

A capacity provider strategy can contain a maximum of 20 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.

(structure)

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 , deleteOnTermination , volumeName , volumeId , and statusReason (only when the attachment fails to create or attach).

(structure)

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 -> (structure)

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.
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