build-push-linux.yaml

name: Build and push linux images

on:
  workflow_call:
    inputs:
      version_number:
        required: false
        type: string

defaults:
  run:
    shell: bash

jobs:
  build-push-linux:
    runs-on: [self-hosted, linux]
    permissions:
      contents: read
      packages: write
    steps:
    - uses: actions/checkout@v3
    - name: Set up QEMU
      uses: docker/setup-qemu-action@v3
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
    - name: lowercase github.repository
      run: |
        echo "IMAGE_NAME=`echo ${{github.repository}} | tr '[:upper:]' '[:lower:]'`" >>${GITHUB_ENV}
    - name: Docker meta
      uses: docker/metadata-action@v5
      id: meta
      with:
        images: |
          ghcr.io/${{ env.IMAGE_NAME }}
        tags: |
          # always release image under 'dev-ubuntu' tag
          type=raw,value=dev-ubuntu
          # release under 'latest-ubuntu' tag if set
          type=raw,value=latest-ubuntu,enable=${{ github.event.inputs.version_number != '' }}
          # release under version tag
          type=raw,value=${{ github.event.inputs.version_number }}-ubuntu,enable=${{ github.event.inputs.version_number != '' }}
        labels: |
          org.opencontainers.image.authors=Ableytner
    - name: Login to GitHub Container Registry
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.repository_owner }}
        password: ${{ secrets.GITHUB_TOKEN }}
    - name: Build and push
      uses: docker/build-push-action@v6
      with:
        context: ./linux
        platforms: linux/amd64,linux/arm64
        pull: true
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}