dersimn/helloarm-github-workflow

Note

See my updated examples on how to use GitHub Actions to build and push to Docker Hub. Just search for my repositories beginning with GitHub-Actions-to-Docker-Hub-*.

Automated build of multi-arch Docker Images

See older workflows in HelloARM repository, however the following is 'state of the art' as of 2022:

Build locally

With the new buildx command, you can build multi-arch Images by just:

docker buildx create --name mybuilder

docker buildx use mybuilder
docker buildx build \
    --platform \
        linux/amd64,\
        linux/arm/v7 \
    -t dersimn/helloarm \
    -t dersimn/helloarm:2 \
    -t dersimn/helloarm:2.3
    -t dersimn/helloarm:2.3.4 \
    --push .

Using GitHub Workflow

You can use GitHub Workflows to trigger the exact same buildx-build on every pushed commit and even let GitHub tag your Docker Images for you using semver tags.

With this method your useres can run

docker run dersimn/helloarm-github-workflow
docker run dersimn/helloarm-github-workflow:2
docker run dersimn/helloarm-github-workflow:2.3
docker run dersimn/helloarm-github-workflow:2.3.4
docker run dersimn/helloarm-github-workflow:latest
docker run dersimn/helloarm-github-workflow:<branch name>

on any platform, Docker will then pull the right image (amd64/arm/…) for you.

Usage

Provide Login Information for Docker Hub

• In GitHub go to: Settings > Secrets
• Create
  • DOCKERHUB_USERNAME = ...
  • DOCKERHUB_TOKEN = ...

Generate a Token on https://hub.docker.com > Account Settings > Security > Access Tokens > New Access Token