build.yaml

name: Docker Image CI

on:
  push:
    branches:
      - '*'
    tags:
      - '*'

jobs:

  build:

    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, '[skip ci]')"
 
    steps:
    - name: Checkout code
      uses: actions/checkout@v2

    - name: Decide on tag
      id: tagger
      run: |
        tag=$(echo "${{ github.ref }}" | sed -e 's/^refs\/heads\///g' -e 's/^refs\/tags\///g' -e 's/^refs\/pull\///g' -e 's/\/merge$//g' | sed -e 's/master/latest/g')
        echo "::set-output name=tag::${tag}"
        echo "::debug::docker image tag ${tag}"

    - name: Login to DockerHub
      uses: docker/login-action@v1
      with:
        username: ${{ secrets.DOCKER_ACCOUNT }}
        password: ${{ secrets.DOCKER_TOKEN }}

    - name: Set up QEMU
      uses: docker/setup-qemu-action@v1

    - name: Set up Docker buildx
      id: buildx
      uses: docker/setup-buildx-action@v1

    - name: Cache Docker layers
      uses: actions/cache@v2
      id: cache
      with:
        path: /tmp/.buildx-cache
        key: ${{ runner.os }}-buildx-${{ github.sha }}
        restore-keys: |
            ${{ runner.os }}-buildx-

    - name: Build and push gtoken Docker image
      if: github.event_name != 'pull_request'
      uses: docker/build-push-action@v2
      with:
        context: cmd/gtoken
        cache-from: type=local,src=/tmp/.buildx-cache
        cache-to: type=local,dest=/tmp/.buildx-cache
        push: true
        tags: ${{ secrets.DOCKER_REPOSITORY }}/gtoken:${{ steps.tagger.outputs.tag }}

    - name: Build and push gtoken:alpine Docker image
      if: github.event_name != 'pull_request'
      uses: docker/build-push-action@v2
      with:
        context: cmd/gtoken
        target: certs
        cache-from: type=local,src=/tmp/.buildx-cache
        cache-to: type=local,dest=/tmp/.buildx-cache
        push: true
        tags: ${{ secrets.DOCKER_REPOSITORY }}/gtoken:${{ steps.tagger.outputs.tag }}-alpine

    - name: Build and push gtoken-webhook Docker image
      if: github.event_name != 'pull_request'
      uses: docker/build-push-action@v2
      with:
        context: cmd/gtoken-webhook
        cache-from: type=local,src=/tmp/.buildx-cache
        cache-to: type=local,dest=/tmp/.buildx-cache
        push: true
        tags: ${{ secrets.DOCKER_REPOSITORY }}/gtoken-webhook:${{ steps.tagger.outputs.tag }}