Network.AWS.ECS.UpdateService

Modify the desired count or task definition used in a service.

You can add to or subtract from the number of instantiations of a task definition in a service by specifying the cluster that the service is running in and a new desiredCount parameter.

You can use UpdateService to modify your task definition and deploy a new version of your service, one task at a time. If you modify the task definition with UpdateService, Amazon ECS spawns a task with the new version of the task definition and then stops an old task after the new version is running. Because UpdateService starts a new version of the task before stopping an old version, your cluster must have capacity to support one more instantiation of the task when UpdateService is run. If your cluster cannot support another instantiation of the task used in your service, you can reduce the desired count of your service by one before modifying the task definition.

See: AWS API Reference for UpdateService.

Creating a Request

updateService

Arguments

:: Text

usService

-> UpdateService

Creates a value of UpdateService with the minimum fields required to make a request.

Use one of the following lenses to modify other fields as desired:

• usCluster
• usDesiredCount
• usTaskDefinition
• usService

data UpdateService

See: updateService smart constructor.

Instances

Eq UpdateService

Data UpdateService

Read UpdateService

Show UpdateService

Generic UpdateService

ToJSON UpdateService

AWSRequest UpdateService

ToPath UpdateService

ToHeaders UpdateService

ToQuery UpdateService

Typeable * UpdateService

type Rep UpdateService

type Sv UpdateService = ECS

type Rs UpdateService = UpdateServiceResponse

Request Lenses

usCluster :: Lens' UpdateService (Maybe Text)

The short name or full Amazon Resource Name (ARN) of the cluster that your service is running on. If you do not specify a cluster, the default cluster is assumed.

usDesiredCount :: Lens' UpdateService (Maybe Int)

The number of instantiations of the task that you would like to place and keep running in your service.

usTaskDefinition :: Lens' UpdateService (Maybe Text)

The family and revision ('family:revision') or full Amazon Resource Name (ARN) of the task definition that you want to run in your service. If a revision is not specified, the latest ACTIVE revision is used. If you modify the task definition with UpdateService, Amazon ECS spawns a task with the new version of the task definition and then stops an old task after the new version is running.

usService :: Lens' UpdateService Text

The name of the service that you want to update.

Destructuring the Response

updateServiceResponse

Arguments

:: Int

usrsStatus

-> UpdateServiceResponse

Creates a value of UpdateServiceResponse with the minimum fields required to make a request.

Use one of the following lenses to modify other fields as desired:

• usrsService
• usrsStatus

data UpdateServiceResponse

See: updateServiceResponse smart constructor.

Instances

Eq UpdateServiceResponse

Data UpdateServiceResponse

Read UpdateServiceResponse

Show UpdateServiceResponse

Generic UpdateServiceResponse

Typeable * UpdateServiceResponse

type Rep UpdateServiceResponse

Response Lenses

usrsService :: Lens' UpdateServiceResponse (Maybe ContainerService)

The full description of your service following the update call.

usrsStatus :: Lens' UpdateServiceResponse Int

The response status code.