deploy.yml

on:
  push:
    branches:
      - production

name: Build and Deploy

jobs:
  build:
    runs-on: ubuntu-latest

    outputs:
      revision: ${{ steps.current_revision.outputs.short }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          lfs: true

      - name: Install NodeJS
        uses: actions/setup-node@v4
        with:
          node-version: 20.x

      - name: Verify versions
        run: node --version && npm --version && node -p process.versions.v8

      - name: Cache build context
        id: cache-node
        uses: actions/cache@v3
        with:
          path: |
            ~/.npm
            .chappe
            node_modules
          key: ${{ runner.os }}-node

      - name: Get current revision
        id: current_revision
        uses: prompt/actions-commit-hash@v3

      - name: Install dependencies
        run: npm install --no-audit

      - name: Build docs
        run: npm run build production

      - name: Archive build files
        run: tar -zcvf ./build-${{ steps.current_revision.outputs.short }}.tar.gz build/

      - name: Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: ${{ steps.current_revision.outputs.short }} Build
          path: ./build-${{ steps.current_revision.outputs.short }}.tar.gz
          retention-days: 7

  ship:
    needs: build
    runs-on: ubuntu-latest

    permissions:
      packages: write

    env:
      REGISTRY: ghcr.io
      IMAGE_NAME: ${{ github.repository }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          sparse-checkout: |
            env/nginx/
            Dockerfile

      - name: Acquire Docker image metadata
        id: metadata
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=tag
            type=raw,value=${{ needs.build.outputs.revision }}
            type=raw,value=latest

      - name: Log in to the container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Download build artifacts
        uses: actions/download-artifact@v4
        with:
          name: ${{ needs.build.outputs.revision }} Build

      - name: Extract build artifacts
        run: tar -xzvf ./build-${{ needs.build.outputs.revision }}.tar.gz

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          tags: ${{ steps.metadata.outputs.tags }}
          labels: ${{ steps.metadata.outputs.labels }}
          push: true

  deploy:
    needs: [build, ship]
    environment: docs.prose.org
    runs-on: ubuntu-latest

    steps:
      - name: Install Nomad
        uses: hashicorp/setup-nomad@v1.0.0

      - name: Request deployment to Nomad
        env:
          NOMAD_ADDR: ${{ vars.NOMAD_ADDR }}
          NOMAD_TOKEN: ${{ secrets.NOMAD_TOKEN }}
          NOMAD_HTTP_AUTH: ${{ secrets.NOMAD_HTTP_AUTH }}
        run: |
          nomad var put -force nomad/jobs/prose-docs IMAGE_TAG=${{ needs.build.outputs.revision }}