Generic Docker Compose Deployments for GitHub Actions

release.yml

name: Release
permissions:
  packages: write
  contents: write
on:
  # Triggered on new GitHub Release
  release:
    types: [published]
  # Triggered on every successful Build action
  workflow_run:
    workflows: ["Build"]
    branches: [main,master]
    types:
      - completed
  # Manual trigger for rollback to specific release or redeploy latest
  workflow_dispatch:
    inputs:
      version:
        default: latest
        description: Tag you want to release.
        required: true

jobs:
  push_to_registry:
    runs-on: ubuntu-22.04
    if: ${{ github.event.workflow_run.conclusion != 'failure' }}
    steps:
      # Checkout latest or specific tag
      - name: checkout
        if: ${{ github.event.inputs.version == '' || github.event.inputs.version == 'latest' }}
        uses: actions/checkout@v3
      - name: checkout tag
        if: ${{ github.event.inputs.version != '' && github.event.inputs.version != 'latest' }}
        uses: actions/checkout@v3
        with:
          ref: refs/tags/${{ github.event.inputs.version }}
          
      # Assign environment variables used in subsequent steps
      - name: Env variable assignment
        run: echo "image_repository_name=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
      # TAG_NAME defaults to 'latest' if not a release or manual deployment
      - name: Assign version
        run: |
          echo "TAG_NAME=latest" >> $GITHUB_ENV
          if [ "${{ github.event.release.tag_name }}" != "" ]; then
            echo "TAG_NAME=${{ github.event.release.tag_name }}" >> $GITHUB_ENV
          fi;
          if [ "${{ github.event.inputs.version }}" != "" ]; then
            echo "TAG_NAME=${{ github.event.inputs.version }}" >> $GITHUB_ENV
          fi;
      
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      
      # Build and push new docker image, skip for manual redeploy other than 'latest'
      - name: Build and push Docker images
        uses: docker/build-push-action@v3
        if: ${{ github.event.inputs.version == '' || github.event.inputs.version == 'latest' }}
        with:
          file: Dockerfile
          context: .
          push: true
          tags: ghcr.io/${{ env.image_repository_name }}:${{ env.TAG_NAME }}
  
  deploy_via_ssh:
    needs: push_to_registry
    runs-on: ubuntu-22.04
    if: ${{ github.event.workflow_run.conclusion != 'failure' }}
    steps:
      # Checkout latest or specific tag
      - name: checkout
        if: ${{ github.event.inputs.version == '' || github.event.inputs.version == 'latest' }}
        uses: actions/checkout@v3
      - name: checkout tag
        if: ${{ github.event.inputs.version != '' && github.event.inputs.version != 'latest' }}
        uses: actions/checkout@v3
        with:
          ref: refs/tags/${{ github.event.inputs.version }}

      - name: repository name fix and env
        run: |
          echo "image_repository_name=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
          echo "domain=${{ secrets.DEPLOY_HOST }}" >> $GITHUB_ENV
          echo "letsencrypt_email=${{ secrets.LETSENCRYPT_EMAIL }}" >> $GITHUB_ENV
          echo "TAG_NAME=latest" >> $GITHUB_ENV
          if [ "${{ github.event.release.tag_name }}" != "" ]; then
            echo "TAG_NAME=${{ github.event.release.tag_name }}" >> $GITHUB_ENV
          fi;
          if [ "${{ github.event.inputs.version }}" != "" ]; then
            echo "TAG_NAME=${{ github.event.inputs.version }}" >> $GITHUB_ENV
          fi;

      - name: Create .env file
        run: |
          echo "Generating .env file"

          echo "# Autogenerated .env file" > .env
          echo "HOST_DOMAIN=${{ secrets.DEPLOY_HOST }}" >> .env
          echo "LETSENCRYPT_EMAIL=${{ secrets.LETSENCRYPT_EMAIL }}" >> .env

          echo "IMAGE_REPO=${{ env.image_repository_name }}" >> .env
          echo "RELEASE_VERSION=${{ env.TAG_NAME }}" >> .env
      
      # Copy only the docker-compose.yml to remote server home folder
      - name: copy files to target server via scp
        uses: appleboy/scp-action@v0.1.3
        with:
          host: ${{ secrets.DEPLOY_HOST }}
          username: ${{ secrets.DEPLOY_USERNAME }}
          port: 22
          key: ${{ secrets.DEPLOY_KEY }}
          source: "./docker-compose.yml,./docker-compose.prod.yml,./.env"
          target: "~/.deploy/${{ github.event.repository.name }}/"
      
      - name: Run remote db migrations
        uses: appleboy/ssh-action@v0.1.5
        env:
          APPTOKEN: ${{ secrets.GITHUB_TOKEN }}
          USERNAME: ${{ secrets.DEPLOY_USERNAME }}
        with:
          host: ${{ secrets.DEPLOY_HOST }}
          username: ${{ secrets.DEPLOY_USERNAME }}
          key: ${{ secrets.DEPLOY_KEY }}
          port: 22
          envs: APPTOKEN,USERNAME
          script: |
            echo $APPTOKEN | docker login ghcr.io -u $USERNAME --password-stdin
            cd ~/.deploy/${{ github.event.repository.name }}
            docker compose -f ./docker-compose.yml -f ./docker-compose.prod.yml pull
            docker compose -f ./docker-compose.yml -f ./docker-compose.prod.yml up app-migration

      # Deploy Docker image with your application using `docker compose up` remotely
      - name: remote docker-compose up via ssh
        uses: appleboy/ssh-action@v0.1.5
        env:
          APPTOKEN: ${{ secrets.GITHUB_TOKEN }}
          USERNAME: ${{ secrets.DEPLOY_USERNAME }}
        with:
          host: ${{ secrets.DEPLOY_HOST }}
          username: ${{ secrets.DEPLOY_USERNAME }}
          key: ${{ secrets.DEPLOY_KEY }}
          port: 22
          envs: APPTOKEN,USERNAME
          script: |
            echo $APPTOKEN | docker login ghcr.io -u $USERNAME --password-stdin
            cd ~/.deploy/${{ github.event.repository.name }}
            docker compose -f ./docker-compose.yml -f ./docker-compose.prod.yml pull
            docker compose -f ./docker-compose.yml -f ./docker-compose.prod.yml up app -d