AWS SDK Version 2 for .NET
API Reference

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.NET Framework 3.5
Container for the parameters to the DeregisterContainerInstance operation. Deregisters an Amazon ECS container instance from the specified cluster. This instance is no longer available to run tasks.

If you intend to use the container instance for some other purpose after deregistration, you should stop all of the tasks running on the container instance before deregistration to avoid any orphaned tasks from consuming resources.

Deregistering a container instance removes the instance from a cluster, but it does not terminate the EC2 instance; if you are finished using the instance, be sure to terminate it in the Amazon EC2 console to stop billing.

When you terminate a container instance, it is automatically deregistered from your cluster.

Inheritance Hierarchy


Namespace: Amazon.ECS.Model
Assembly: AWSSDK.dll
Version: (assembly version)


public class DeregisterContainerInstanceRequest : AmazonECSRequest

The DeregisterContainerInstanceRequest type exposes the following members



Public Property Cluster System.String Gets and sets the property Cluster.

The short name or full Amazon Resource Name (ARN) of the cluster that hosts the container instance to deregister. If you do not specify a cluster, the default cluster is assumed.

Public Property ContainerInstance System.String Gets and sets the property ContainerInstance.

The container instance ID or full Amazon Resource Name (ARN) of the container instance to deregister. The ARN contains the arn:aws:ecs namespace, followed by the region of the container instance, the AWS account ID of the container instance owner, the container-instance namespace, and then the container instance ID. For example, arn:aws:ecs:region:aws_account_id:container-instance/container_instance_ID.

Public Property Force System.Boolean Gets and sets the property Force.

Forces the deregistration of the container instance. If you have tasks running on the container instance when you deregister it with the force option, these tasks remain running and they continue to pass Elastic Load Balancing load balancer health checks until you terminate the instance or the tasks stop through some other means, but they are orphaned (no longer monitored or accounted for by Amazon ECS). If an orphaned task on your container instance is part of an Amazon ECS service, then the service scheduler starts another copy of that task, on a different container instance if possible.

Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

.NET for Windows Store apps:
Supported in: Windows 8