ci.yml

name: Continuous Integration
on:
  pull_request:
    types: [opened, synchronize, labeled]

concurrency:
  group: ${{ github.head_ref }}
  cancel-in-progress: true

jobs:
  # JOB to run change detection
  changes:
    runs-on: ubuntu-22.04
    outputs:
      # Expose matched filters as job 'charts' output variable
      charts: ${{ steps.changes.outputs.charts }}
      # flag of file changes
      changed: ${{ steps.changes.outputs.changed }}
    steps:
    - name: Checkout
      uses: actions/checkout@v2

    # For pull requests it's not necessary to checkout the code
    - uses: dorny/paths-filter@v2
      id: filter
      with:
        filters: |
          # Match all, excluding README.md and README.md.gotmpl (micromatch syntax)
          rasa:
            - '!(charts/rasa/README*)charts/rasa/**'
          rasa-action-server:
            - '!(charts/rasa-action-server/README*)charts/rasa-action-server/**'
          duckling:
            - '!(charts/duckling/README*)charts/duckling/**'
          rasa-common:
            - '!(charts/rasa-common/README*)charts/rasa-common/**'

    - name: Print output
      id: changes
      run: |
        CHANGED=${{ fromJSON(steps.filter.outputs.changes)[0] != null }}
        echo "::set-output name=changed::${CHANGED}"

        if [[ "${CHANGED}" == "true" ]]; then
          echo "::set-output name=charts::${{ toJSON(steps.filter.outputs.changes) }}"
        else
          echo "::set-output name=charts::[\"rasa\"]"
        fi

  lint-chart:
    runs-on: ubuntu-22.04
    needs: changes
    steps:
      - name: Checkout
        if: needs.changes.outputs.changed == 'true'
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Set up Helm
        if: needs.changes.outputs.changed == 'true'
        uses: azure/setup-helm@v3
        with:
          version: v3.11.2

      # helm/chart-testing-action requires python version >= 3.7
      # see: https://github.com/helm/chart-testing-action/issues/65
      - uses: actions/setup-python@v2
        if: needs.changes.outputs.changed == 'true'
        with:
          python-version: 3.7

      - name: Set up chart-testing
        if: needs.changes.outputs.changed == 'true'
        uses: helm/chart-testing-action@v2.1.0

      - name: Run chart-testing (lint)
        if: needs.changes.outputs.changed == 'true'
        run: ct lint --config .github/.ct.yaml

  unit-tests:
    runs-on: ubuntu-22.04
    needs: changes
    strategy:
      matrix:
        test:
          - ./test/common
          - ./charts/rasa/test
          - ./charts/rasa-action-server/test
          - ./charts/duckling/test

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - uses: actions/setup-go@v2
        with:
          go-version: '^1.20.2'

      - name: Download dependencies
        working-directory: ${{ matrix.test }}
        run: go mod download -x all

      - name: Helm dependency update
        run: |
          cd ./charts
          for x in `ls`; do helm dependency update ./${x}; done

      - name: Run tests
        working-directory: ${{ matrix.test }}
        run: |
          helm repo add rasa https://helm.rasa.com
          go mod tidy
          go test -v

  kubeval-chart:
    runs-on: ubuntu-22.04
    needs: changes
    strategy:
      matrix:
        # When changing versions here, check that the version exists at: https://github.com/instrumenta/kubernetes-json-schema
        k8s:
          - v1.14.10
          - v1.16.4
          - v1.18.1
        chart: ${{ fromJSON(needs.changes.outputs.charts) }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Set up Helm
        uses: azure/setup-helm@v3
        with:
          version: v3.11.2

      - name: Render template
        run: |
          helm dep up charts/${{ matrix.chart }}
          helm template -f .github/kubeval.values.yaml charts/${{ matrix.chart }} > ${{ matrix.chart }}.yaml

      - name: Run kubeval
        uses: instrumenta/kubeval-action@5915e4adba5adccac07cb156b82e54c3fed74921
        env:
          KUBEVAL_SCHEMA_LOCATION: https://kubernetesjsonschema.dev/
        with:
          files: ${{ matrix.chart }}.yaml
          ignore_missing_schemas: true

  install-chart:
    name: Install chart
    runs-on: ubuntu-20.04
    needs:
      - lint-chart
      - kubeval-chart
      - changes
    strategy:
      matrix:
        k8s:
          - v1.14.10
          - v1.16.9
          - v1.18.4
        chart: ${{ fromJSON(needs.changes.outputs.charts) }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Create kind ${{ matrix.k8s }} cluster
        uses: helm/kind-action@94729529f85113b88f4f819c17ce61382e6d8478 # v1.2.0
        with:
          node_image: kindest/node:${{ matrix.k8s }}

      - name: Set up Helm
        uses: azure/setup-helm@v3
        with:
          version: v3.11.2

      - name: Install chart
        run: |
          helm dep up charts/${{ matrix.chart }}
          helm install ${{ matrix.chart }} charts/${{ matrix.chart }}

      - name: Test Rasa
        timeout-minutes: 10
        if: matrix.chart == 'rasa'
        run: |
          until kubectl wait --timeout=10s --for=condition=Ready --selector app.kubernetes.io/name=rasa pod; do
            kubectl get pods
            sleep 1
          done

          kubectl logs -c rasa-oss -l app.kubernetes.io/name=rasa
          kubectl get svc

          export SERVICE_PORT=$(kubectl get -o jsonpath="{.spec.ports[0].port}" services rasa)
          kubectl port-forward svc/rasa ${SERVICE_PORT}:${SERVICE_PORT} &

          until `nc -w 2 -z 127.0.0.1 ${SERVICE_PORT}`; do
            echo "Waiting for ${SERVICE_PORT} port to be available."
            sleep 1
          done

          curl -s  http://127.0.0.1:${SERVICE_PORT}/

  validate:
    name: Validate the PR
    runs-on: ubuntu-22.04
    needs:
      - unit-tests
      - kubeval-chart
      - install-chart
    steps:
      - name: Validate the PR
        run: echo "All good!"