build-push-staging.yml

name: "build & push docker staging"

on:
  pull_request_target:
    branches: [main]
    types:
      - closed

jobs:
  if_merged:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

      - name: Setup golang environment
        uses: actions/setup-go@v5
        with:
          go-version: "1.22"

      - name: Install dependencies
        run: go mod tidy

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          registry: ${{ secrets.DOCKER_ENDPOINT }}
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: set build env variables
        shell: bash
        run: |
          REPO_VERSION=$(git rev-parse --git-dir > /dev/null 2>&1 && git fetch -q origin --tags && git describe --always --dirty --tags)
          REPO_REV=$(git rev-parse --git-dir > /dev/null 2>&1 && git rev-parse HEAD 2>/dev/null)
          BUILD_DATE=$(date -u +%FT%T)
          echo "REPO_VERSION=$REPO_VERSION" >> $GITHUB_ENV
          echo "REPO_REV=$REPO_REV" >> $GITHUB_ENV
          echo "BUILD_DATE=$BUILD_DATE" >> $GITHUB_ENV

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          build-args: |
            VERSION=${{ env.REPO_VERSION }}
            REPO_REV=${{ env.REPO_REV }}
            DATE=${{ env.BUILD_DATE }}
          tags: ${{ secrets.DOCKER_ENDPOINT }}${{ secrets.DOCKER_REPO }}/fishymetrics:${{ env.REPO_VERSION }}