docker-publish.yml

name: Build Docker Image and deploy to Server

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

on:
  push:
    # branches: [ "development", "production", "!master" ]    
    # Publish semver tags as releases.
    tags: [ 'v*.*.*' ]

env:
  # Use docker.io for Docker Hub if empty
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  IMAGE_NAME: ${{ github.repository }}

jobs:
  check:
    name: Check
    runs-on: ubuntu-latest
    outputs:
      branch: ${{ steps.check_step.outputs.branch }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Get current branch
        id: check_step
        run: |
          raw=$(git branch -r --contains ${{ github.ref }})
          branch=${raw##*/}
          echo "branch=$branch" >> $GITHUB_OUTPUT
          echo "Branch is $branch."

  build:
    name: Build
    needs: [check]
    runs-on: ubuntu-latest
    permissions:
      contents: write
      packages: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.
      id-token: write

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

      - name: Release latest
        uses: softprops/action-gh-release@v1

      # Install the cosign tool except on PR
      # https://github.com/sigstore/cosign-installer
      - name: Install cosign
        if: github.event_name != 'pull_request'
        uses: sigstore/cosign-installer@v3.4.0 #v2.6.0
        with:
          cosign-release: 'v2.2.3'

      # Workaround: https://github.com/docker/build-push-action/issues/461
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@79abd3f86f79a9d68a23c75a09a9a85889262adf

      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
        with:
          context: "./backend"
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/aarch64 #linux/amd64
          cache-from: type=gha
          cache-to: type=gha,mode=max


      # Sign the resulting Docker image digest except on PRs.
      # This will only write to the public Rekor transparency log when the Docker
      # repository is public to avoid leaking data.  If you would like to publish
      # transparency data even for private images, pass --force to cosign below.
      # https://github.com/sigstore/cosign
      - name: Sign the published Docker image
        if: ${{ github.event_name != 'pull_request' }}
        env:
          COSIGN_EXPERIMENTAL: "true"
        # This step uses the identity token to provision an ephemeral certificate
        # against the sigstore community Fulcio instance.
        run: echo "${{ steps.meta.outputs.tags }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }}

  deploy:
    name: Deploy
    runs-on: ubuntu-latest
    needs: [check, build]

    steps:
    - name: Check out code
      uses: actions/checkout@v3

    - name: Setup Kustomize
      uses: imranismail/setup-kustomize@v2

    - if: ${{ needs.check.outputs.branch == 'development' }}
      name: Update Kubernetes resources for development
      run: |
       cd kustomize/overlays/development
       kustomize edit set image brigadasos-dev-db=ghcr.io/brigadasos/nadeshiko:$GITHUB_REF_NAME
       cat kustomization.yaml

    - if: ${{ needs.check.outputs.branch == 'production' }}
      name: Update Kubernetes resources for production
      run: |
       cd kustomize/overlays/production
       kustomize edit set image brigadasos-db=ghcr.io/brigadasos/nadeshiko:$GITHUB_REF_NAME
       cat kustomization.yaml

    - name: Commit files
      run: |
        git config --local user.email "action@github.com"
        git config --local user.name "GitHub Action"
        git commit -am "Bump docker tag"

    - if: ${{ needs.check.outputs.branch == 'development' }}
      name: Push changes to development
      uses: ad-m/github-push-action@master
      with:
        branch: development
        force: true
        github_token: ${{ secrets.GITHUB_TOKEN }}

    - if: ${{ needs.check.outputs.branch == 'production' }}
      name: Push changes to production
      uses: ad-m/github-push-action@master
      with:
        branch: production
        force: true
        github_token: ${{ secrets.GITHUB_TOKEN }}