build_deploy_backend.yml

name: Backend Production Deployment

on:
  push:
    branches:
      - master
    paths:
      - "zubhub_backend/**"
      - "!zubhub_backend/zubhub/docs/**"
      - "!zubhub_backend/.gitignore"
      - "!zubhub_backend/.env.example"
      - "!zubhub_backend/.dockerignore"
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Checkout files
        uses: actions/checkout@v2

      - name: Build and push django api
        id: docker_build_web
        uses: docker/build-push-action@v2
        with:
          context: ./zubhub_backend/
          file: ./zubhub_backend/compose/web/prod/Dockerfile
          push: true
          tags: unstructuredstudio/zubhub-services_web:latest
      - name: Image digest
        run: echo ${{ steps.docker_build.outputs.digest }}

      - name: Build and push celery worker
        id: docker_build_celery
        uses: docker/build-push-action@v2
        with:
          context: ./zubhub_backend/
          file: ./zubhub_backend/compose/celery/prod/Dockerfile
          push: true
          tags: unstructuredstudio/zubhub-services_celery:latest
      - name: Image digest
        run: echo ${{ steps.docker_build.outputs.digest }}

      - name: Build and push media service
        id: docker_build_media
        uses: docker/build-push-action@v2
        with:
          context: ./zubhub_backend/
          file: ./zubhub_backend/compose/media/prod/Dockerfile
          push: true
          tags: unstructuredstudio/zubhub-services_media:latest
      - name: Image digest
        run: echo ${{ steps.docker_build.outputs.digest }}

  deploy:
    needs: build
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v1

      - name: Copy file via scp
        uses: appleboy/scp-action@master
        with:
          host: ${{ secrets.DO_BACKEND_HOST }}
          username: ${{ secrets.DO_BACKEND_USERNAME }}
          key: ${{ secrets.DO_SSHKEY }}
          source: "."
          target: "/home/zubhub-services/zubhub"

      - name: Executing remote  command
        uses: appleboy/ssh-action@master
        with:
          host: ${{ secrets.DO_BACKEND_HOST }}
          username: ${{ secrets.DO_BACKEND_USERNAME }}
          key: ${{ secrets.DO_SSHKEY }}
          script: |
            cp /home/zubhub-services/zubhub/zubhub_backend/compose/deploy_backend.sh /home/zubhub-services/
            sudo bash /home/zubhub-services/deploy_backend.sh
            doctl compute droplet list 'zubhub-services*' > droplets.txt
            droplets_count=`wc -l < droplets.txt`
            rm droplets.txt
            docker service scale zubhub-services_web=$(($droplets_count - 1))