Interface IEcsOptimizedImageOptions
Additional configuration properties for EcsOptimizedImage factory functions.
Namespace: Amazon.CDK.AWS.ECS
Assembly: Amazon.CDK.AWS.ECS.dll
Syntax (csharp)
public interface IEcsOptimizedImageOptions
Syntax (vb)
Public Interface IEcsOptimizedImageOptions
Remarks
ExampleMetadata: infused
Examples
Vpc vpc;
var autoScalingGroup = new AutoScalingGroup(this, "ASG", new AutoScalingGroupProps {
MachineImage = EcsOptimizedImage.AmazonLinux(new EcsOptimizedImageOptions { CachedInContext = true }),
Vpc = vpc,
InstanceType = new InstanceType("t2.micro")
});
Synopsis
Properties
CachedInContext | Whether the AMI ID is cached to be stable between deployments. |
Properties
CachedInContext
Whether the AMI ID is cached to be stable between deployments.
virtual Nullable<bool> CachedInContext { get; }
Property Value
System.Nullable<System.Boolean>
Remarks
By default, the newest image is used on each deployment. This will cause instances to be replaced whenever a new version is released, and may cause downtime if there aren't enough running instances in the AutoScalingGroup to reschedule the tasks on.
If set to true, the AMI ID will be cached in cdk.context.json
and the
same value will be used on future runs. Your instances will not be replaced
but your AMI version will grow old over time. To refresh the AMI lookup,
you will have to evict the value from the cache using the cdk context
command. See https://docs.aws.amazon.com/cdk/latest/guide/context.html for
more information.
Can not be set to true
in environment-agnostic stacks.
Default: false