preview.yaml

name: Preview

on:
  pull_request:
    types: [opened, synchronize, reopened, labeled]
    branches:
      - lts-2025

  workflow_dispatch:
    inputs:
      branch_name:
        description: 'The name of the branch to preview.'
        default: 'lts-2025'
        required: true
      caller_id:
        description: 'run identifier'
        default: 'lts-2025'
        type: string
        required: false

env:
  DOCKER_REGISTRY: us-east1-docker.pkg.dev
  DOCKER_IMAGE: ${{ secrets.GKE_PROJECT }}/webui/nuxeo-web-ui
  GKE_CLUSTER: jx-prod
  GKE_ZONE: us-east1-b

jobs:
  id:
    name: Remote Caller ID ${{ github.event.inputs.caller_id }}
    runs-on: ubuntu-latest
    steps:
      - name: ${{ github.event.inputs.id }}
        run: echo run identifier ${{ github.event.inputs.id }}
  preview:
    needs: id
    name: Setup
    outputs:
      url: ${{ steps.preview.outputs.url }}
    if: (github.event.action == 'labeled' && github.event.label.name == 'preview') || contains(github.event.pull_request.labels.*.name, 'preview') || github.event_name == 'workflow_dispatch'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/setup-node@v3
        with:
          node-version: 18
          registry-url: 'https://packages.nuxeo.com/repository/npm-public/'
          scope: '@nuxeo'

      - name: Setup branch name (pull_request)
        if: github.event_name == 'pull_request'
        run: |
          BRANCH_NAME=${GITHUB_HEAD_REF##*/}
          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV

      - name: Setup branch name (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch'
        run: |
          BRANCH_NAME=${{ github.event.inputs.branch_name }}
          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV

      - name: Determine nuxeo-web-ui branch to use
        uses: nuxeo/ui-team-gh-actions/get-branch@ca09d5c52a62e297502d3572c36d813be927982a
        id: pick_nuxeo_web_ui_branch
        with:
          repository: nuxeo/nuxeo-web-ui
          branch: ${BRANCH_NAME}
          default-branch: lts-2025

      - uses: actions/checkout@v3
        with:
          ref: ${{ steps.pick_nuxeo_web_ui_branch.outputs.branch }}

      - name: Prepare environment
        run: |
          echo "VERSION=$(npx -c 'echo "$npm_package_version"')-$BRANCH_NAME" >> $GITHUB_ENV
          echo "PREVIEW_NAMESPACE=$(printf '%.53s' $(echo nuxeo-web-ui-$(echo $BRANCH_NAME | sed 's/[^[:alnum:]-]/-/g' | tr '[:upper:]' '[:lower:]')))" >> $GITHUB_ENV

      - name: Determine nuxeo-elements branch to use
        id: pick_nuxeo_elements_branch
        uses: nuxeo/ui-team-gh-actions/get-branch@ca09d5c52a62e297502d3572c36d813be927982a
        with:
          repository: nuxeo/nuxeo-elements
          branch: ${BRANCH_NAME}
          default-branch: lts-2025

      - name: Checkout the nuxeo-elements repo
        uses: actions/checkout@v2
        with:
          repository: nuxeo/nuxeo-elements
          path: nuxeo-elements
          fetch-depth: 1
          ref: ${{ steps.pick_nuxeo_elements_branch.outputs.branch }}

      - name: Install
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: |
          npm install nuxeo-elements/core
          npm install nuxeo-elements/ui
          npm install nuxeo-elements/dataviz
          npm install

      - name: Webpack build
        run: |
          npm run build

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          registry: ${{ env.DOCKER_REGISTRY }}
          username: _json_key
          password: ${{ secrets.GKE_SA_KEY }}

      - name: Build and push server image
        uses: docker/build-push-action@v2
        with:
          context: server
          pull: true
          push: true
          file: server/Dockerfile
          tags: ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_IMAGE }}/server:${{ env.VERSION }}

      - name: Build and push image
        uses: docker/build-push-action@v2
        with:
          context: .
          pull: true
          push: true
          file: Dockerfile
          tags: ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_IMAGE }}:${{ env.VERSION }}
          build-args: SERVER_IMAGE=${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_IMAGE }}/server:${{ env.VERSION }}

      - name: Get GKE credentials
        uses: google-github-actions/get-gke-credentials@v0.2.1
        with:
          cluster_name: ${{ env.GKE_CLUSTER }}
          location: ${{ env.GKE_ZONE }}
          project_id: ${{ secrets.GKE_PROJECT }}
          credentials: ${{ secrets.GKE_SA_KEY }}

      - name: Check preview namespace
        id: preview_ns
        run: |
          echo ::set-output name=exists::$(kubectl get namespace ${PREVIEW_NAMESPACE})

      - name: Create preview namespace
        if: ${{ !steps.preview_ns.outputs.exists }}
        run: |
          kubectl create namespace ${PREVIEW_NAMESPACE}

      - name: Install preview
        id: preview
        working-directory: ./charts/preview
        run: |
          # add helm jx repo
          helm repo add jx https://jenkins-x-charts.github.io/v2/

          # substitute env variables in values.yaml
          mv values.yaml values.yaml.tosubst
          envsubst < values.yaml.tosubst > values.yaml

          # update helm deps
          helm dependency update .

          # install
          helm upgrade --install --namespace ${PREVIEW_NAMESPACE} ${PREVIEW_NAMESPACE} .

          # ensure the deployment is restarted to pull the new preview image
          kubectl rollout restart deployment ${PREVIEW_NAMESPACE}-preview --namespace ${PREVIEW_NAMESPACE}
          
          echo "PREVIEW_URL=https://preview-${PREVIEW_NAMESPACE}.webui.dev.nuxeo.com" >> $GITHUB_ENV

          echo ::set-output name=url::"https://preview-${PREVIEW_NAMESPACE}.webui.dev.nuxeo.com"

      - uses: actions/github-script@0.9.0
        if: github.event_name == 'pull_request'
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `:star: PR built and available [here](${process.env.PREVIEW_URL})`
            })

  result:
    name: "Result: ${{ needs.preview.outputs.url }}"
    needs: preview
    runs-on: ubuntu-latest
    if: github.event_name == 'workflow_dispatch'
    steps:
      - name: "Result: ${{ needs.preview.outputs.url }}"
        run: |
          echo ${{ needs.preview.outputs.url }}