Multi-Arch Docker Images with ECR

Dependency requirement in Jenkins

1 Docker

2 AWS CLI 2.X / 1.X (If you are using ECR repo)

Create buildX Profile

The default profile doesn’t allow you to create multiple platform , so we need to create new buildX profile by providing following command in your machine where you run buildx commands. jenkinsBuildX is the name of your buildx.

>> New Profile

docker buildx create --name jenkinsBuildX

>> Use the newly created the profile for build x following command

docker buildx use jenkinsBuildX

>> Check the profile information

docker buildx inspect --bootstrap

Create a Dockerfile you want to create Multi Arch, here am just creating base ubuntu image and pushing to ECR public repo.

FROM ubuntu:20.04

Login to ECR repo via CLI

1#Private repo 2aws ecr get-login-password — region us-west-2 | docker login — username AWS — password-stdin <<AccountID>>.dkr.ecr.us-west-2.amazonaws.com 3#Public repo 4aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws

Run following commands to generate multi-architecture image and push to ECR

docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 -t public.ecr.aws/ALIAS_ID/MyBaseREPO:Ubuntu-20.04 --push .