docker_tests_and_previews.yaml

name: Docker tests & previews
on:
  pull_request:
    branches: [master]
    types: [opened, synchronize, reopened]
  merge_group:
    types: [checks_requested]

permissions:
  packages: write
  actions: read

env:
  IMAGE_NAME: 'ghcr.io/${{ github.repository }}'
  TAG: ${{ github.sha }}
  BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
  TF_VAR_admin_key: ${{ secrets.ADMIN_KEY_DEV }}

jobs:
  build_backend:
    name: 'Build backend'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v40
        with:
          files: |
            backend/**
          files_ignore: |
            backend/.gitignore
            backend/.env.example
          since_last_remote_commit: true

      - name: List all changed files
        run: |
          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
            echo "$file was changed"
          done
          echo "any_changed = ${{ steps.changed-files.outputs.any_changed }}"

      - name: Login to GitHub Container Registry
        if: steps.changed-files.outputs.any_changed == 'true'
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build backend with cache and push to registry
        if: steps.changed-files.outputs.any_changed == 'true'
        run: |
          cd backend
          docker build \
            --cache-from "$IMAGE_NAME/backend:latest" \
            -t "$IMAGE_NAME/backend:$TAG" \
            --build-arg BUILDKIT_INLINE_CACHE=1 \
            .
          docker push "$IMAGE_NAME/backend" --all-tags
        env:
          DOCKER_BUILDKIT: 1

  kotest_tests:
    name: 'Kotest tests'
    runs-on: ubuntu-latest
    needs: [build_backend]
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v40
        with:
          files: |
            backend/**
          files_ignore: |
            backend/.gitignore
            backend/.env.example
          since_last_remote_commit: true

      - name: List all changed files
        run: |
          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
            echo "$file was changed"
          done
          echo "any_changed = ${{ steps.changed-files.outputs.any_changed }}"

      - name: Pull Docker image
        if: steps.changed-files.outputs.any_changed == 'true'
        run: docker pull "$IMAGE_NAME/backend:$TAG"

      - name: Run Kotest tests with Docker Compose
        if: steps.changed-files.outputs.any_changed == 'true'
        run: docker compose -f backend/docker-compose.kotest.yaml up --exit-code-from=backend
        env:
          ADMIN_KEY: admin-passord

  cypress_e2e_tests:
    name: 'Cypress end-to-end tests'
    runs-on: ubuntu-latest
    needs: [build_backend]
    env:
      ADMIN_KEY: admin-passord
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Get changed files, frontend
        id: changed-files-frontend
        uses: tj-actions/changed-files@v40
        with:
          files: |
            frontend/**
            yarn.lock
            package.json
            .github/workflows/docker_tests_and_previews.yaml
          files_ignore: |
            *.md
            *.png
            *.ico
            *.svg
            *.test.tsx
            frontend/.gitignore
            frontend/.env.example
          since_last_remote_commit: true

      - name: List all changed files, frontend
        run: |
          for file in ${{ steps.changed-files-frontend.outputs.all_changed_files }}; do
            echo "$file was changed"
          done
          echo "any_changed = ${{ steps.changed-files-frontend.outputs.any_changed }}"

      - name: Get changed files, backend
        id: changed-files-backend
        uses: tj-actions/changed-files@v40
        with:
          files: |
            backend/**
          files_ignore: |
            backend/.gitignore
            backend/.env.example
          since_last_remote_commit: true

      - name: List all changed files, backend
        run: |
          for file in ${{ steps.changed-files-backend.outputs.all_changed_files }}; do
            echo "$file was changed"
          done
          echo "any_changed = ${{ steps.changed-files-backend.outputs.any_changed }}"

      - name: Backend changed, pull Docker image
        if: steps.changed-files-frontend.outputs.any_changed == 'true' && steps.changed-files-backend.outputs.any_changed == 'true'
        run: docker pull "$IMAGE_NAME/backend:$TAG"

      - name: Backend didn't change, pull Docker image
        if: steps.changed-files-frontend.outputs.any_changed == 'true' && steps.changed-files-backend.outputs.any_changed != 'true'
        run: docker pull "$IMAGE_NAME/backend:latest"

      - name: Start backend
        if: steps.changed-files-frontend.outputs.any_changed == 'true' || steps.changed-files-backend.outputs.any_changed == 'true'
        run: |
          cd backend
          docker compose up &
        env:
          BACKEND_TAG: ${{ steps.changed-files-backend.outputs.any_changed == 'true' && github.sha || 'latest' }}
          ENVIRONMENT: preview

      - name: Run Cypress end-to-end tests
        if: steps.changed-files-frontend.outputs.any_changed == 'true' || steps.changed-files-backend.outputs.any_changed == 'true'
        uses: cypress-io/github-action@v6.5.0
        with:
          working-directory: frontend
          install-command: yarn --frozen-lockfile
          build: yarn build
          start: yarn start
          wait-on: 'http://localhost:3000, http://localhost:8080/status'
          config: video=false
          browser: firefox
        env:
          VERCEL_ENV: preview
          SANITY_DATASET: testing
          NEXTAUTH_URL: http://localhost:3000
          NEXTAUTH_SECRET: very-secret-string-123
          FEIDE_CLIENT_ID: ${{ secrets.FEIDE_CLIENT_ID }}
          FEIDE_CLIENT_SECRET: ${{ secrets.FEIDE_CLIENT_SECRET }}

      - name: Upload Cypress screenshots (only on failure)
        uses: actions/upload-artifact@v3
        if: failure()
        with:
          name: cypress-screenshots
          path: frontend/cypress/screenshots

  backend_preview:
    name: 'Deploy backend preview'
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request'
    needs: [build_backend]
    outputs:
      preview_backend_url: ${{ steps.preview_deploy.outputs.BACKEND_URL || steps.default_value.outputs.BACKEND_URL }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set BACKEND_URL default value
        id: default_value
        run: echo "BACKEND_URL=$BACKEND_URL" >> $GITHUB_OUTPUT
        env:
          BACKEND_URL: 'https://echo-web-dev.greenisland-73b91cd1.norwayeast.azurecontainerapps.io'

      - name: Get changed files, backend
        id: changed-files-backend
        uses: tj-actions/changed-files@v40
        with:
          files: |
            backend/**
          files_ignore: |
            backend/.gitignore
            backend/.env.example
          since_last_remote_commit: true

      - name: List all changed files, backend
        run: |
          for file in ${{ steps.changed-files-backend.outputs.all_changed_files }}; do
            echo "$file was changed"
          done
          echo "any_changed = ${{ steps.changed-files-backend.outputs.any_changed }}"

      - name: Get changed files, Terraform
        id: changed-files-tf
        uses: tj-actions/changed-files@v40
        with:
          files: |
            terraform/**
            .github/workflows/docker_tests_and_previews.yaml
          since_last_remote_commit: true

      - name: List all changed files, Terraform
        run: |
          for file in ${{ steps.changed-files-tf.outputs.all_changed_files }}; do
            echo "$file was changed"
          done
          echo "any_changed = ${{ steps.changed-files-tf.outputs.any_changed }}"

      - name: Setup Terraform
        if: steps.changed-files-backend.outputs.any_changed == 'true' || steps.changed-files-tf.outputs.any_changed == 'true'
        uses: hashicorp/setup-terraform@v2
        with:
          terraform_wrapper: false

      - name: Set environment variables
        id: env_vars
        if: steps.changed-files-backend.outputs.any_changed == 'true' || steps.changed-files-tf.outputs.any_changed == 'true'
        run: |
          echo "BRANCH_NAME_FORMATTED=$(echo "$BRANCH_NAME" | sed -e 's/-*login-*//g' -e 's/renovate\///g' -e 's/frontend/f/g' -e 's/backend/b/g' -e 's/[\/_\.]/-/g')" >> $GITHUB_OUTPUT
          echo "BACKEND_TAG=$BACKEND_TAG" >> $GITHUB_OUTPUT
        env:
          BACKEND_TAG: ${{ steps.changed-files-backend.outputs.any_changed == 'true' && github.sha || 'latest' }}

      - name: Deploy preview container
        id: preview_deploy
        if: steps.changed-files-backend.outputs.any_changed == 'true' || steps.changed-files-tf.outputs.any_changed == 'true'
        run: |
          cd terraform/preview
          terraform init -lockfile=readonly
          terraform workspace new $WORKSPACE_NAME || terraform workspace select $WORKSPACE_NAME
          terraform apply -auto-approve -lock-timeout=15m
          # Get backend url and output it
          echo "BACKEND_URL=$(terraform output -raw backend_url)" >> $GITHUB_OUTPUT
        env:
          TF_VAR_rg_name: 'echo-web-${{ steps.env_vars.outputs.BRANCH_NAME_FORMATTED }}'
          TF_VAR_db_password: ${{ secrets.DB_PASSWORD_DEV }}
          TF_VAR_backend_image: '${{ env.IMAGE_NAME }}/backend:${{ steps.env_vars.outputs.BACKEND_TAG }}'
          TF_VAR_auth_secret: ${{ secrets.AUTH_SECRET }}
          ARM_CLIENT_ID: 225cb793-e592-482e-8612-2318bd5e0a6c
          ARM_CLIENT_SECRET: ${{ secrets.ARM_CLIENT_SECRET }}
          ARM_SUBSCRIPTION_ID: f16e6916-1e71-42a0-9df3-0246b805f432
          ARM_TENANT_ID: 10086e44-d4c5-4039-ab23-dc49610f7879
          WORKSPACE_NAME: ${{ steps.env_vars.outputs.BRANCH_NAME_FORMATTED }}

      - name: Find comment
        id: fc
        if: steps.changed-files-backend.outputs.any_changed == 'true' || steps.changed-files-tf.outputs.any_changed == 'true'
        uses: peter-evans/find-comment@v2
        with:
          issue-number: ${{ github.event.pull_request.number }}
          body-includes: '<!-- BACKEND PREVIEW BOT -->'

      - name: Create comment
        if: steps.fc.outputs.comment-id == '' && (steps.changed-files-backend.outputs.any_changed == 'true' || steps.changed-files-tf.outputs.any_changed == 'true')
        uses: peter-evans/create-or-update-comment@v2
        with:
          token: ${{ secrets.REPO_PAT }}
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            <!-- BACKEND PREVIEW BOT -->

            **beep boop!**

            I just deployed a backend preview to ${{ steps.preview_deploy.outputs.BACKEND_URL }} :rocket:

            - [ ] check this box to restart the backend preview, if you are getting errors.

      - name: Update comment
        if: steps.fc.outputs.comment-id != '' && (steps.changed-files-backend.outputs.any_changed == 'true' || steps.changed-files-tf.outputs.any_changed == 'true')
        uses: peter-evans/create-or-update-comment@v2
        with:
          token: ${{ secrets.REPO_PAT }}
          comment-id: ${{ steps.fc.outputs.comment-id }}
          edit-mode: replace
          body: |
            <!-- BACKEND PREVIEW BOT -->

            **beep boop!**

            I just deployed a backend preview to ${{ steps.preview_deploy.outputs.BACKEND_URL }} :rocket:

            - [ ] check this box to restart the backend preview, if you are getting errors.

  vercel_preview:
    name: 'Deploy Vercel preview'
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request'
    needs: [backend_preview]
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Deploy to Vercel
        uses: snaplet/vercel-action@v3
        with:
          await-for-deployment: true
          env: |
            SANITY_DATASET=production
            ADMIN_KEY=${{ secrets.ADMIN_KEY_DEV }}
            NEXT_PUBLIC_BACKEND_URL=${{ needs.backend_preview.outputs.preview_backend_url }}
            NEXTAUTH_SECRET=secret123AsDef£123
        env:
          VERCEL_ACCESS_TOKEN: ${{ secrets.VERCEL_TOKEN }}
          VERCEL_PROJECT_ID: prj_8VUZLEU0bcCYk0j9aHHgorqmtuM0
          VERCEL_TEAM_ID: team_BalajEhvjfBqbkouJFI9761w
          GITHUB_TOKEN: ${{ secrets.REPO_PAT }}

      - name: Seed backend with Sanity data
        run: curl -v ${{ needs.backend_preview.outputs.preview_backend_url }}/sanity -u admin:$TF_VAR_admin_key --basic || true