Promote Images Between Docker Repos

A common workflow is to build Elastic Path Commerce Docker container images in one AWS account and later pull those images into another AWS account. For example, you can build and test Elastic Path Commerce Docker images in a non-production account then promote those Docker images to a production account. Elastic Path CloudOps for Kubernetes provides two Jenkins jobs to support such use cases. To use the CloudOps for Kubernetes solution, both accounts must be bootstrapped with CloudOps for Kubernetes.

Overview

The high level workflow is:

• Run the authorize-aws-account-to-pull-ECR-images Jenkins job at least once in the source account to authorize the destination AWS account to access the Docker images.
• Run the pull-docker-images Jenkins job in the destination account as needed to pull images from the source account.

Detailed Usage

After you have bootstrapped a Kubernetes cluster in AWS, you will see the pull-docker-images job and the authorize-aws-account-to-pull-ECR-images job.

1. Run the authorize-aws-account-to-pull-ECR-images job in the source AWS account.

   Ensure that you provide the destination AWS account so that the destination account has permission to pull Docker images. If you are retagging images on the same AWS account, you do not need to run the authorize-aws-account-to-pull-ECR-images job and can proceed to the next step. The authorize-aws-account-to-pull-ECR-images job takes the following parameters:

   • cloudOpsForKubernetesRepoURL
   • cloudOpsForKubernetesBranch
   • AWS_ACCOUNT_ID

2. Run the pull-docker-images job in the destination account to pull the docker images.

   Ensure that you have previously authorized the destination AWS account to pull images. In AWS, this job takes the following parameters:

   • cloudOpsForKubernetesRepoURL
   • cloudOpsForKubernetesBranch
   • SOURCE_IMAGE_TAG
   • DEST_IMAGE_TAG
   • EP_IMAGE_REPOS
   • SOURCE_DOCKER_REGISTRY_SECRET
   • SOURCE_AWS_ACCOUNT_NUMBER
   • SOURCE_AWS_REGION

The SOURCE_AWS_REGION parameter is only required if transferring images between regions.