cd.yml

name: Deploy

on:
  push:
    branches:
      - main

env:
  IMAGE_NAME: ${{ github.event.repository.name }}
  SSH_HOST: ${{ secrets.SSH_HOST }}
  SSH_USER: ${{ secrets.SSH_USER }}
  SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
  DB_USER_NAME: ${{ secrets.DB_USER_NAME }}           # Add here environment variables first and then when reference it when you build the docker image
  DB_USER_PASSWORD: ${{ secrets.DB_USER_PASSWORD }}           # Add here environment variables first and then when reference it when you build the docker image

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: lower-repo
        name: Repository to lowercase
        run: |
          echo "repository=${GITHUB_REPOSITORY@L}" >> $GITHUB_OUTPUT

      - name: Build & push docker image
        uses: docker/build-push-action@v4
        with:
            context: .
            push: true
            platforms: linux/amd64,linux/arm64 # Specify the platforms you need
            tags: ghcr.io/${{ steps.lower-repo.outputs.repository }}:latest
            build-args: |
              DB_USER_NAME=${{ env.DB_USER_NAME }}
              DB_USER_PASSWORD=${{ env.DB_USER_PASSWORD }}
            #Add here your environment Variables which you implemented above
            file: Dockerfile # Adjust if your Dockerfile is not in the root directory
            outputs: digest

      - name: Capture WildFly Logs
        run: |
            docker logs <container_id> | tee wildfly.log
            cat wildfly.log

      - name: Image digest
        run: echo ${{ steps.build-and-push.outputs.digest }}

      - uses: appleboy/ssh-action@v1.0.0
        name: Pull image and start container
        with:
          host: ${{ env.SSH_HOST }}
          username: ${{ env.SSH_USER }}
          key: ${{ env.SSH_PRIVATE_KEY }}
          script: |
            docker container rm -f ${{ env.IMAGE_NAME }} 2> /dev/null || true
            docker image rm ghcr.io/${{ steps.lower-repo.outputs.repository }}:latest 2> /dev/null || true
            echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u $ --password-stdin
            docker pull ghcr.io/${{ steps.lower-repo.outputs.repository }}:latest
            docker run -d -p 8080:8080 --name ${{ env.IMAGE_NAME }} ghcr.io/${{ steps.lower-repo.outputs.repository }}:latest
          # Explainaition for the last line:
          # docker run -d -p [externalPort]:[internalPort] --name [imageName] ghcr.io/[repositoryOwner]/[repositoryName]:latest