Description:

This policy ensures that lifecycle policies are enabled for all Amazon Elastic Container Registry (ECR) repositories. This helps to mitigate the risk of orphaned images and images that are no longer needed taking up space in your ECR repositories.

Rationale:

Lifecycle policies allow you to define rules for automatically deleting images from your ECR repositories after a certain amount of time. This helps to ensure that your repositories are only storing images that are actively being used.

Impact:

If lifecycle policies are not enabled for your ECR repositories, orphaned images and images that are no longer needed may take up space in your repositories. This can lead to increased costs and performance issues.

Default Value:

By default, lifecycle policies are not enabled for ECR repositories.

Pre-requisites:

  • Access to the AWS Management Console or the AWS CLI
  • The ability to manage ECR repositories

Remediation Steps:

  1. Open the AWS Management Console or the AWS CLI.
  2. Go to the Amazon Elastic Container Registry console.
  3. Click on Repositories.
  4. Select the repository that you want to enable lifecycle policy for.
  5. Click on the Lifecycle Policy tab.
  6. Click on the Create Lifecycle Policy button.
  7. In the Create Lifecycle Policy dialog box, select the Enable lifecycle policy checkbox.
  8. Click on the Create button.

Test Plan:

  1. Verify that the lifecycle policy is enabled for the repository.
  2. Check the repository to see if any images have been deleted according to the lifecycle policy.

Implementation Plan:

  1. Follow the remediation steps above to implement the policy.
  2. Test the policy to make sure that it is working as expected.

AWS CLI Process:

To enable lifecycle policies for ECR repositories using the AWS CLI, you can use the following command:

aws ecr set-lifecycle-policy --repository-name <repository-name> --lifecycle-policy file://lifecycle_policy.json

Using AWS GUI:

To enable lifecycle policies for ECR repositories using the AWS GUI, you can follow these steps:

  1. Go to the AWS Management Console.
  2. Click on the Amazon Elastic Container Registry tab.
  3. Click on Repositories.
  4. Select the repository that you want to enable lifecycle policy for.
  5. Click on the Lifecycle Policy tab.
  6. Click on the Create Lifecycle Policy button.
  7. In the Create Lifecycle Policy dialog box, select the Enable lifecycle policy checkbox.
  8. Click on the Create button.

Backout Plan:

To disable lifecycle policies for ECR repositories, you can use the following command:

aws ecr disable-lifecycle-policy --repository-name <repository-name>

Note:

  • This policy only applies to ECR repositories.
  • If you have any questions about this policy, please contact your AWS administrator.

Reference:

  • Amazon Elastic Container Registry documentation: https://docs.aws.amazon.com/AmazonECR/latest/userguide/LifecyclePolicies.html

Section 2:

  • Tags: security, images, lifecycle, ECR
  • Keywords: lifecycle policy, ECR, AWS policy