aws_ecs: allow to specify kernel when creating the ecsOptimizedImage

[segundovolante]

Describe the feature

Current CDK api does not allow to specify the kernel version, and you end up with 4.14 which is marked as EOL Jan 2024.

This page says 4.14 has reached EOL: https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-optimized_AMI.html

API link: https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecs.EcsOptimizedImage.html

It would help if:

• default kernel is the recommended kernel
• it could be passed like in this construct: https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.AmazonLinux2Kernel.html
• create the AMI id using https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.AmazonLinux2ImageSsmParameter.html

Use Case

I want to create an ECS autoscaling group with the recommended kernel or using another supported ami from the ECS optimized image.

Proposed Solution

Option 1: update the api to use the recommended kernel version (5.10)
Option 2: allow users to pass the kernel version to use, as the AMI exists.

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.137.0

Environment details (OS name and version, etc.)

AL2

[khushail]

Thanks @segundovolante for requesting this feature. This totally makes sense!

[Konosh93]

it could be passed like in this construct: https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.AmazonLinux2Kernel.html

I concur with the proposal to allow manual specification of the kernel version in ecsOptimizedImage. While updating the default kernel version to 5.10 might seem beneficial, it does carry the risk of introducing breaking changes for current users.

Additionally, changing the default kernel would necessitate updates to a large number of integration tests

[segundovolante]

Yeah, I agree that the better option long term is to allow to specify the kernel as an optional parameter. This would behave similar to the ec2.