AmazonLinuxImageProps Struct

Amazon Linux image properties.

Source: aws-ec2/lib/machine-image/machine-image.ts
Type last changed: v2.201.0 · 13 Jun 2025

Example

declare const vpc: ec2.IVpc;
const lb = new elb.LoadBalancer(this, 'LB', {
  vpc,
  internetFacing: true,
});

// instance to add as the target for load balancer.
const instance = new ec2.Instance(this, 'targetInstance', {
  vpc: vpc,
  instanceType: ec2.InstanceType.of(ec2.InstanceClass.BURSTABLE2, ec2.InstanceSize.MICRO),
  machineImage: new ec2.AmazonLinuxImage({ generation: ec2.AmazonLinuxGeneration.AMAZON_LINUX_2 }),
});
lb.addTarget(new elb.InstanceTarget(instance));

Properties

additionalCacheKeystringadditional_cache_keystradditionalCacheKeyStringAdditionalCacheKeystringAdditionalCacheKey*string= no additional cache key#

Adds an additional discriminator to the `cdk.context.json` cache key.

cachedInContextbooleancached_in_contextboolcachedInContextBooleanCachedInContextboolCachedInContext*bool= false#

Whether the AMI ID is cached to be stable between deployments.

notes

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.