Amazon Elastic Container Service
API Reference (API Version 2014-11-13)

TaskSet

Information about a set of Amazon ECS tasks in either an AWS CodeDeploy or an EXTERNAL deployment. An Amazon ECS task set includes details such as the desired number of tasks, how many tasks are running, and whether the task set serves production traffic.

Contents

clusterArn

The Amazon Resource Name (ARN) of the cluster that the service that hosts the task set exists in.

Type: String

Required: No

computedDesiredCount

The computed desired count for the task set. This is calculated by multiplying the service's desiredCount by the task set's scale percentage. The result is always rounded up. For example, if the computed desired count is 1.2, it rounds up to 2 tasks.

Type: Integer

Required: No

createdAt

The Unix timestamp for when the task set was created.

Type: Timestamp

Required: No

externalId

The external ID associated with the task set.

If a task set is created by an AWS CodeDeploy deployment, the externalId parameter contains the AWS CodeDeploy deployment ID.

If a task set is created for an external deployment and is associated with a service discovery registry, the externalId parameter contains the ECS_TASK_SET_EXTERNAL_ID AWS Cloud Map attribute.

Type: String

Required: No

id

The ID of the task set.

Type: String

Required: No

launchType

The launch type the tasks in the task set are using. For more information, see Amazon ECS Launch Types in the Amazon Elastic Container Service Developer Guide.

Type: String

Valid Values: EC2 | FARGATE

Required: No

loadBalancers

Details on a load balancer that is used with a task set.

Type: Array of LoadBalancer objects

Required: No

networkConfiguration

The network configuration for the task set.

Type: NetworkConfiguration object

Required: No

pendingCount

The number of tasks in the task set that are in the PENDING status during a deployment. A task in the PENDING state is preparing to enter the RUNNING state. A task set enters the PENDING status when it launches for the first time or when it is restarted after being in the STOPPED state.

Type: Integer

Required: No

platformVersion

The platform version on which the tasks in the task set are running. A platform version is only specified for tasks using the Fargate launch type. If one is not specified, the LATEST platform version is used by default. For more information, see AWS Fargate Platform Versions in the Amazon Elastic Container Service Developer Guide.

Type: String

Required: No

runningCount

The number of tasks in the task set that are in the RUNNING status during a deployment. A task in the RUNNING state is running and ready for use.

Type: Integer

Required: No

scale

A floating-point percentage of the desired number of tasks to place and keep running in the task set.

Type: Scale object

Required: No

serviceArn

The Amazon Resource Name (ARN) of the service the task set exists in.

Type: String

Required: No

serviceRegistries

The details of the service discovery registries to assign to this task set. For more information, see Service Discovery.

Type: Array of ServiceRegistry objects

Required: No

stabilityStatus

The stability status, which indicates whether the task set has reached a steady state. If the following conditions are met, the task set will be in STEADY_STATE:

  • The task runningCount is equal to the computedDesiredCount.

  • The pendingCount is 0.

  • There are no tasks running on container instances in the DRAINING status.

  • All tasks are reporting a healthy status from the load balancers, service discovery, and container health checks.

If any of those conditions are not met, the stability status returns STABILIZING.

Type: String

Valid Values: STEADY_STATE | STABILIZING

Required: No

stabilityStatusAt

The Unix timestamp for when the task set stability status was retrieved.

Type: Timestamp

Required: No

startedBy

The tag specified when a task set is started. If the task set is created by an AWS CodeDeploy deployment, the startedBy parameter is CODE_DEPLOY. For a task set created for an external deployment, the startedBy field isn't used.

Type: String

Required: No

status

The status of the task set. The following describes each state:

PRIMARY

The task set is serving production traffic.

ACTIVE

The task set is not serving production traffic.

DRAINING

The tasks in the task set are being stopped and their corresponding targets are being deregistered from their target group.

Type: String

Required: No

taskDefinition

The task definition the task set is using.

Type: String

Required: No

taskSetArn

The Amazon Resource Name (ARN) of the task set.

Type: String

Required: No

updatedAt

The Unix timestamp for when the task set was last updated.

Type: Timestamp

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

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