.github/workflows/docker-build.yml

name: Docker Build

on:
  push:
    branches:
      - main
    paths:
      - Dockerfile
      - docker-entrypoint.sh
      - .github/workflows/docker-build.yml
  workflow_dispatch:

jobs:
  build:
    name: Build Image
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read

    steps:
      - name: Checkout current repo
        uses: actions/checkout@v2

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

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

      - name: Set ENV Variables
        run: |
          IMG="$(echo "${{ github.repository }}" | tr '[:upper:]' '[:lower:]')"
          bot_git_version=$(git rev-parse --short HEAD)
          echo "BUILD_VER=bot_git_version" >> $GITHUB_ENV
          echo "IMAGE=${IMG}" >> $GITHUB_ENV
          echo "BUILD_DATE=$(date +'%Y-%m-%d %H:%M:%S')" >> $GITHUB_ENV
          echo "GIT_SHA=$(echo ${{ github.sha }} | cut -c1-7)" >> $GITHUB_ENV
          echo "GIT_REF=$(git symbolic-ref -q --short HEAD || git describe --tags --exact-match)" >> $GITHUB_ENV
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

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

      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v2
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: |
            ghcr.io/${{ env.IMAGE }}:latest
            ghcr.io/${{ env.IMAGE }}:${{ env.BUILD_VER }}
            ${{ env.IMAGE }}:latest
            ${{ env.IMAGE }}:${{ env.BUILD_VER }}
          labels: |
            org.opencontainers.image.authors=${{ github.repository_owner }}
            org.opencontainers.image.created=${{ env.BUILD_DATE }}
            org.opencontainers.image.description=Created from commit ${{ env.GIT_SHA }} and ref ${{ env.GIT_REF }}
            org.opencontainers.image.ref.name=${{ env.GIT_REF }}
            org.opencontainers.image.revision=${{ github.sha }}
            org.opencontainers.image.source=https://github.com/${{ github.repository }}
            org.opencontainers.image.version=${{ env.BUILD_VER }}