AWS services or capabilities described in AWS Documentation may vary by region/location. Click Getting Started with Amazon AWS to see specific differences applicable to the China (Beijing) Region.
Removes one or more instances from the specified Auto Scaling group.
After the instances are detached, you can manage them independent of the Auto Scaling group.
If you do not specify the option to decrement the desired capacity, Amazon EC2 Auto Scaling launches instances to replace the ones that are detached.
If there is a Classic Load Balancer attached to the Auto Scaling group, the instances are deregistered from the load balancer. If there are target groups attached to the Auto Scaling group, the instances are deregistered from the target groups.
For more information, see Detach EC2 instances from your Auto Scaling group in the Amazon EC2 Auto Scaling User Guide.
For .NET Core this operation is only available in asynchronous form. Please refer to DetachInstancesAsync.
Namespace: Amazon.AutoScaling
Assembly: AWSSDK.AutoScaling.dll
Version: 3.x.y.z
public abstract DetachInstancesResponse DetachInstances( DetachInstancesRequest request )
Container for the necessary parameters to execute the DetachInstances service method.
| Exception | Condition |
|---|---|
| ResourceContentionException | You already have a pending update to an Amazon EC2 Auto Scaling resource (for example, an Auto Scaling group, instance, or load balancer). |
This example detaches the specified instance from the specified Auto Scaling group.
var client = new AmazonAutoScalingClient();
var response = client.DetachInstances(new DetachInstancesRequest
{
AutoScalingGroupName = "my-auto-scaling-group",
InstanceIds = new List<string> {
"i-93633f9b"
},
ShouldDecrementDesiredCapacity = true
});
List<Activity> activities = response.Activities;
.NET Framework:
Supported in: 4.5, 4.0, 3.5