ci.yml

name: CI
on:
  push:
    tags:
    - v*
    branches:
    - master
  pull_request:
    branches:
    - master

env:
  REGISTRY: registry-write.deckhouse.io
  IMAGE_NAME: k8s-image-availability-exporter/k8s-image-availability-exporter

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest

    steps:
    - uses: actions/setup-go@v5
      with:
        go-version: '1.21'

    - uses: actions/checkout@v4

    - name: Test With Coverage
      run: go test -v -race  -coverprofile=coverage.txt -covermode=atomic ./...

    - name: Upload coverage to Codecov
      uses: codecov/codecov-action@v4.4.1
      with:
        files: coverage.txt

  lint:
    name: Lint
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4

    - uses: actions/setup-go@v5
      with:
        go-version: '1.21'

    - name: Download golangci-lint
      run: make bin/golangci-lint

    - name: Lint
      run: make lint

  build:
    name: Build

    runs-on: ubuntu-latest
    needs: test

    permissions:
      contents: read
      packages: write

    steps:
      - uses: actions/checkout@v4

      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3.1.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.DECKHOUSE_REGISTRY_USER }}
          password: ${{ secrets.DECKHOUSE_REGISTRY_PASSWORD }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5.5.1
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        uses: docker/build-push-action@v5.3.0
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            TAG=${{ github.ref_name }}

  chart:
    name: Chart

    runs-on: ubuntu-latest
    outputs:
      changed: ${{ steps.changes.outputs.changed }}

    steps:
    - name: Checkout
      uses: actions/checkout@v4
      with:
        fetch-depth: 0

    - name: Set up Helm
      uses: azure/setup-helm@v4
      with:
        version: v3.10.3

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: "3.10"

    - name: Set up chart-testing
      uses: helm/chart-testing-action@v2.6.1

    - name: Lint
      run: ct lint

    - name: Check generated docs
      run: |
        make docs
        test "$(git diff --name-only)" == "" \
        || ( printf >&2 "\nREADME files are not up to date (run 'make docs'), differences:\n\n%s\n\n" "$(git diff)" ; exit 1 ; )

    - name: Detect changes
      id: changes
      run: |
        changed=$(ct list-changed)
        if [[ -n "$changed" ]]; then
          echo "changed=true" >> $GITHUB_OUTPUT
        fi

  chart-test:
    name: Chart Test
    runs-on: ubuntu-latest
    needs: chart
    if: needs.chart.outputs.changed == 'true'
    strategy:
      fail-fast: false
      matrix:
        kube: ["1.24", "1.25", "1.26"]

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: azure/setup-helm@v4
        with:
          version: v3.10.3

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.6.1

      # See https://github.com/kubernetes-sigs/kind/releases/tag/v0.17.0
      - name: Determine KinD node image version
        id: node_image
        run: |
          case ${{ matrix.kube }} in
            1.24)
              NODE_IMAGE=kindest/node:v1.24.7@sha256:577c630ce8e509131eab1aea12c022190978dd2f745aac5eb1fe65c0807eb315 ;;
            1.25)
              NODE_IMAGE=kindest/node:v1.25.3@sha256:f52781bc0d7a19fb6c405c2af83abfeb311f130707a0e219175677e366cc45d1 ;;
            1.26)
              NODE_IMAGE=kindest/node:v1.26.0@sha256:691e24bd2417609db7e589e1a479b902d2e209892a10ce375fab60a8407c7352 ;;
            esac

            echo "image=$NODE_IMAGE" >> $GITHUB_OUTPUT

      - name: Create KinD cluster
        uses: helm/kind-action@v1.10.0
        with:
          version: v0.17.0
          node_image: ${{ steps.node_image.outputs.image }}

      - name: Test
        run: ct install