build-publish.yml

name: Build and Push Docker Image

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up JDK 21
        uses: actions/setup-java@v3
        with:
          java-version: '21'
          distribution: 'adopt'

      - name: Cache Maven packages
        uses: actions/cache@v3
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-

      - name: Build with Maven
        run: mvn clean package

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

      - name: Log-in to registry
        uses: docker/login-action@v3
        with:
          registry: https://index.docker.io/v1/
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Build and push container image to registry
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: index.docker.io/${{ secrets.DOCKER_USERNAME }}/zplex-api:${{ github.sha }}