server-cd.yml

name: Backend - build and deploy

on:
  push:
    branches:
      - main
    paths:
      - "server/**" # limit workflow only to changes in backend folder
      - ".github/workflows/server-cd.yml"
  pull_request:
    branches:
      - main
    paths:
      - "server/**"
      - ".github/workflows/server-cd.yml"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: checkout current repository
        uses: actions/checkout@v4

      - name: set up Java 21
        uses: actions/setup-java@v4
        with:
          java-version: '21'
          distribution: 'temurin'

      - name: build application jar
        uses: gradle/actions/setup-gradle@v3
        with:
          gradle-version: wrapper
          arguments: build
          build-root-directory: server

      - name: create server artifact from jar
#        if: github.ref == 'refs/heads/main'
        uses: actions/upload-artifact@v4
        with:
          name: server
          path: server/build

  publish:
    needs: build
#    if: github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
      - name: checkout current repository
        uses: actions/checkout@v4

      - name: download server artifact
        uses: actions/download-artifact@v4
        with:
          name: server
          path: server/build

      - name: set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: log in to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: build and publish server Docker image
        uses: docker/build-push-action@v6
        with:
          context: server
          file: server/docker/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: stenal/baltic-stock-server:latest

      - name: deploy production docker-compose.yml
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ secrets.SSH_HOST }}
          username: ${{ secrets.SSH_USER }}
          key: ${{ secrets.SSH_KEY }}
          port: ${{ secrets.SSH_PORT }}
          source: "server/docker/prod/docker-compose.yml"
          target: "~"
          strip_components: 3

      - name: Deploy published images
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ secrets.SSH_HOST }}
          username: ${{ secrets.SSH_USER }}
          key: ${{ secrets.SSH_KEY }}
          port: ${{ secrets.SSH_PORT }}
          protocol: tcp6
          script: |
            docker compose pull
            docker compose up -d