standalone-build-artifact.yml

on:
  workflow_call:
    inputs:
      deployTo:
        description: Directory where to deploy to (if empty that home dir is used)
        type: string
        required: false
      ecosystemFile:
        description: Override for which file to use for ecosystem.config.js
        type: string
        required: false
        default: "ecosystem.config.js"
      applicationSuffixId:
        description: Suffix used to differentiate between applications. This is meant to be used when a single deployment to a single environment requires multiple builds (i.e. b2c + b2b). Defaults to `main`.
        type: string
        required: false
        default: "main"
      environment:
        description: The github environment to inherit secrets from
        type: string
        required: true
      additionalEnv:
        description: Additional environment variables to append to the .env file (be sure to escape double-quotes)
        type: string
        required: false
      nodeVersion:
        description: Version of node used by yarn to build the application
        type: string
        required: false
        default: "20"
      limitSsg:
        description: Limit static site generation
        type: boolean
        required: false
        default: false
      checkoutRef:
        description: Reference to use in checkout (see 'ref' parameter in https://github.com/actions/checkout)
        type: string
        required: false
        default: ""
      runner:
        description: Github Action runner to use. Defaults to 'ubuntu-latest'
        type: string
        required: false
        default: "ubuntu-latest"

jobs:
  build-artifact:
    name: Build deployment artifact
    runs-on: ${{ inputs.runner }}
    environment: ${{ inputs.environment }}
    steps:
      - uses: actions/checkout@v4.1.4
        with:
          ref: ${{ inputs.checkoutRef }}
      - name: Node.js
        uses: actions/setup-node@v4.0.2
        with:
          node-version: ${{ inputs.nodeVersion }}
          cache: "yarn"
      - name: Restore cache
        uses: actions/cache@v4.0.2
        with:
          path: ${{ github.workspace }}/.next/cache
          key: ${{ runner.os }}-nextjs-${{ hashFiles('yarn.lock') }}
          restore-keys: ${{ runner.os }}-nextjs-${{ hashFiles('yarn.lock') }}-
      - name: Dependencies
        run: yarn install --frozen-lockfile --immutable
      - name: Generate environment configuration
        env:
          ALL_VARS: ${{ toJSON(vars) }}
          ALL_SECRETS: ${{ toJSON(secrets) }}
        run: |
          touch .env

          # additionalEnv input is the legacy way to override configuration variables
          echo "${{ inputs.additionalEnv }}" >> .env

          echo "GC_LIMIT_SSG=${{ inputs.limitSsg }}" >> .env

          # Read repository variables and secrets that are GraphCommerce specific, and write them to the .env file. We
          # use the `toJSON` github action expression to fetch all variables in one go, and pipe them through `jq` to
          # turn them back into a .env compatible format.
          echo $ALL_VARS    | { jq -r '.|with_entries(select(.key|startswith("GC_")))|to_entries|map("\(.key)=\"\(.value|tostring)\"")|.[]' || true; } >> .env
          echo $ALL_SECRETS | { jq -r '.|with_entries(select(.key|startswith("GC_")))|to_entries|map("\(.key)=\"\(.value|tostring)\"")|.[]' || true; } >> .env
      - name: Build
        env:
          GITHUB_SHA: ${{ github.sha }}
        run: |
          echo $(node -v)
          export NODE_OPTIONS="--max_old_space_size=6144"
          NEXT_PRIVATE_STANDALONE=1 yarn build
          # Allow overriding bind address using VHOSTIP or HOSTNAME environment variables
          sed -i '/server.listen(currentPort, (err) => {/c\server.listen(currentPort, process.env.HOSTNAME || process.env.VHOSTIP || "0.0.0.0", (err) => {' .next/standalone/server.js
          # For newer versions of next, we need to override the bind address differently (HOSTNAME is now also supported by default)
          sed -i 's/process.env.HOSTNAME ||/process.env.VHOSTIP || process.env.HOSTNAME ||/g' .next/standalone/server.js
          # add http-graceful-shutdown and health check if exists
          [ -d ./node_modules/http-graceful-shutdown ] && echo "" >> .next/standalone/server.js
          [ -d ./node_modules/http-graceful-shutdown ] && echo "require('http-graceful-shutdown')(server)" >> .next/standalone/server.js
          [ -d ./node_modules/http-graceful-shutdown ] && echo "require('./.next/server/pages/api/health').then((m) => m.default())" >> .next/standalone/server.js
          [ -f ./pages/api/health.ts ] && echo "" >> .next/standalone/server.js
          [ -f ./pages/api/health.ts ] && echo "Promise.resolve(require('./.next/server/pages/api/health')).then((m) => m.default())" >> .next/standalone/server.js
          cp -R public .next/standalone/public
          cp ecosystem.config.js .next/standalone/
          cp ${{ inputs.ecosystemFile }} .next/standalone/
          cp -R .next/static .next/standalone/.next/static
          tar -czf "${GITHUB_SHA}_${{ inputs.applicationSuffixId }}".tar.gz -C .next/standalone .
      - name: Node version
        run: echo "$(node -v)"
        shell: bash
      - name: Upload artifact
        uses: actions/upload-artifact@v4.3.3
        with:
          name: deployment-artifact-${{ inputs.applicationSuffixId }}
          path: ${{ github.sha }}_${{ inputs.applicationSuffixId }}.tar.gz