ci.yaml

# Copyright (c) 2019, 2023 Contributors to the Eclipse Foundation
#
# See the NOTICE file(s) distributed with this work for additional
# information regarding copyright ownership.
#
# This program and the accompanying materials are made available under the
# terms of the Eclipse Public License 2.0 which is available at
# http://www.eclipse.org/legal/epl-2.0
#
# SPDX-License-Identifier: EPL-2.0

name: ci

env:
  CONFIG_OPTION_CHART_TESTING: "--config .github/ct.yaml"
  VERSION_CHART_TESTING: "v3.5.1"
  VERSION_HELM: "v3.9.2"
  VERSION_PYTHON: "3.7"
on:
  pull_request:
    paths:
      - 'charts/**'
      - 'packages/**'

jobs:
  lint-bash-scripts:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Lint Bash scripts
        uses: docker://koalaman/shellcheck-alpine:v0.9.0
        with:
          args: .github/lint-scripts.sh

  lint-chart:
    runs-on: ubuntu-latest
    needs: lint-bash-scripts
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Fetch history for chart testing
        run: git fetch --prune --unshallow
      - name: Set up Helm
        uses: azure/setup-helm@v3.5
        with:
          version: ${{ env.VERSION_HELM }}
      - uses: actions/setup-python@v4
        with:
          python-version: ${{ env.VERSION_PYTHON }}
      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.2.1
        with:
          version: ${{ env.VERSION_CHART_TESTING }}
      - name: Run chart-testing (lint)
        run: ct lint ${{ env.CONFIG_OPTION_CHART_TESTING }}

  kubeval-chart:
    runs-on: ubuntu-latest
    needs: lint-chart
    strategy:
      matrix:
        # the versions supported by kubeval are the ones for
        # which a folder exists at
        # https://github.com/yannh/kubernetes-json-schema/
        k8s:
          - v1.25.13
          - v1.26.8
          - v1.27.5
          - v1.28.1
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Fetch history for chart testing
        run: git fetch --prune --unshallow
      - name: Set up Helm
        uses: azure/setup-helm@v3.5
        with:
          version: ${{ env.VERSION_HELM }}
      - name: Run kubeval
        env:
          KUBERNETES_VERSION: ${{ matrix.k8s }}
        run: .github/kubeval.sh

  install-chart:
    name: install-chart
    runs-on: ubuntu-latest
    needs:
      - lint-chart
      - kubeval-chart
    strategy:
      matrix:
        k8s:
        # the versions supported by chart-testing are the tags
        # available for the docker.io/kindest/node image
        # https://hub.docker.com/r/kindest/node/tags
          - v1.25.11
          - v1.26.6
          - v1.27.3
          - v1.28.0
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Fetch history for chart testing
        run: git fetch --prune --unshallow
      - name: Set up Helm
        uses: azure/setup-helm@v3.5
        with:
          version: ${{ env.VERSION_HELM }}
      - uses: actions/setup-python@v4
        with:
          python-version: ${{ env.VERSION_PYTHON }}
      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.2.1
        with:
          version: ${{ env.VERSION_CHART_TESTING }}
      - name: Check for changed charts
        id: list-changed
        run: |
          changed=$(ct list-changed ${{ env.CONFIG_OPTION_CHART_TESTING }})
          if [[ -n "$changed" ]]; then
            echo "changed=true" >> $GITHUB_OUTPUT
          fi
      - name: Create kind ${{ matrix.k8s }} cluster
        uses: helm/kind-action@v1.8.0
        with:
          version: v0.20.0
          config: .github/kind-config.yaml
          node_image: kindest/node:${{ matrix.k8s }}
        if: ${{ steps.list-changed.outputs.changed == 'true' }}
      - name: Deploy ingress controller
        if: ${{ steps.list-changed.outputs.changed == 'true' }}
        run: |
          # upgrade after: https://github.com/kubernetes/ingress-nginx/issues/6245
          kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.0.3/deploy/static/provider/kind/deploy.yaml
      - name: Wait for the ingress controller to become ready
        if: ${{ steps.list-changed.outputs.changed == 'true' }}
        run: |
          kubectl wait --namespace ingress-nginx \
            --for=condition=ready pod \
            --selector=app.kubernetes.io/component=controller \
            --timeout=180s
          kubectl -n ingress-nginx set resources deployment ingress-nginx-controller --requests=cpu=0
          sleep 120
          kubectl wait --namespace ingress-nginx \
            --for=condition=ready pod \
            --selector=app.kubernetes.io/component=controller \
            --timeout=180s
      - if: ${{ failure() }}
        run: |
          kubectl -n ingress-nginx describe pods
      - name: Describe nodes
        if: ${{ steps.list-changed.outputs.changed == 'true' }}
        run: |
          kubectl describe nodes
      - name: Run CI chart customization
        if: ${{ steps.list-changed.outputs.changed == 'true' }}
        run: .github/chart-ci-init.sh
      - name: Run chart-testing (install)
        run: ct install ${{ env.CONFIG_OPTION_CHART_TESTING }}

      - name: Record logs
        if: ${{ failure() }}
        run: |
          # drop after: https://github.com/kubernetes/ingress-nginx/issues/6245
          kubectl -n ingress-nginx describe pods
          kubectl -n ingress-nginx logs deployment/ingress-nginx-controller