ci.yml

name: CI

on:
  push:
    branches:
      - main
    tags:
      - "v[0-9]+.[0-9]+.[0-9]+"
  pull_request:
    branches:
      - main

env:
  DOCKER_PLATFORMS: "linux/arm/v5,linux/arm/v6,linux/arm/v7,linux/arm64,linux/amd64,linux/ppc64le,linux/s390x,linux/mips64le,linux/386,linux/riscv64"

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

permissions:
  contents: read

jobs:
  unit-tests:
    name: Unit Tests
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout Repository
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

      - name: Setup Golang Environment
        uses: actions/setup-go@41dfa10bad2bb2ae585af6ee5bb4d7d973ad74ed # v5.1.0
        with:
          go-version: stable

      - name: Run Tests
        run: make test

      - name: Upload coverage reports to Codecov
        uses: codecov/codecov-action@015f24e6818733317a2da2edd6290ab26238649a # v5.0.7
        with:
          token: ${{ secrets.CODECOV_TOKEN }}

  build-docker:
    name: Build Docker Image
    runs-on: ubuntu-24.04
    permissions:
      contents: write # for lucacome/draft-release to create/update release draft
      security-events: write # for github/codeql-action/upload-sarif to upload SARIF results
      id-token: write # for OIDC login to AWS ECR and goreleaser/goreleaser-action to sign artifacts
      packages: write # for docker/build-push-action to push to GHCR
      issues: write # for goreleaser/goreleaser-action to close milestones
    needs: unit-tests
    services:
      registry:
        image: registry:2
        ports:
          - 5000:5000
    steps:
      - name: Checkout Repository
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          fetch-depth: 0

      - name: Setup Golang Environment
        uses: actions/setup-go@41dfa10bad2bb2ae585af6ee5bb4d7d973ad74ed # v5.1.0
        with:
          go-version: stable

      - name: Setup QEMU
        uses: docker/setup-qemu-action@49b3bc8e6bdd4a60e6116a5414239cba5943d3cf # v3.2.0

      - name: Docker Buildx
        uses: docker/setup-buildx-action@c47758b77c9736f4b2ef4073d4d51994fabfe349 # v3.7.1
        with:
          version: latest
          driver-opts: network=host

      - name: DockerHub Login
        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
        if: github.event_name != 'pull_request'

      - name: Login to GitHub Container Registry
        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
        if: github.event_name != 'pull_request'

      - name: Configure AWS Credentials
        uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4.0.2
        with:
          aws-region: us-east-1
          role-to-assume: ${{ secrets.AWS_ROLE_PUBLIC_ECR }}
        if: github.event_name != 'pull_request'

      - name: Login to Public ECR
        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
        with:
          registry: public.ecr.aws
        if: github.event_name != 'pull_request'

      - name: Login to Quay.io
        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
        with:
          registry: quay.io
          username: ${{ secrets.QUAY_USERNAME }}
          password: ${{ secrets.QUAY_ROBOT_TOKEN }}
        if: github.event_name != 'pull_request'

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@369eb591f429131d6889c46b94e711f089e6ca96 # v5.6.1
        with:
          images: |
            name=nginx/nginx-prometheus-exporter,enable=${{ github.event_name != 'pull_request' }}
            name=ghcr.io/nginxinc/nginx-prometheus-exporter,enable=${{ github.event_name != 'pull_request' }}
            name=public.ecr.aws/nginx/nginx-prometheus-exporter,enable=${{ github.event_name != 'pull_request' }}
            name=quay.io/nginx/nginx-prometheus-exporter,enable=${{ github.event_name != 'pull_request' }}
            name=localhost:5000/nginx/nginx-prometheus-exporter
          tags: |
            type=edge
            type=ref,event=pr
            type=schedule
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}
            type=semver,pattern={{major}}.{{minor}}
          labels: |
            org.opencontainers.image.vendor=NGINX Inc <integrations@nginx.com>
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index

      - name: Create/Update Draft
        uses: lucacome/draft-release@5d29432a46bff6c122cd4b07a1fb94e1bb158d34 # v1.1.1
        with:
          minor-label: "enhancement"
          major-label: "change"
          publish: ${{ github.ref_type == 'tag' }}
          collapse-after: 30
          notes-footer: |
            ## Upgrade

            - Use the {{version}} image from our [DockerHub](https://hub.docker.com/r/nginx/nginx-prometheus-exporter/tags?page=1&ordering=last_updated&name={{version-number}}), [GitHub Container](https://github.com/nginxinc/nginx-prometheus-exporter/pkgs/container/nginx-prometheus-exporter), [Amazon ECR Public Gallery](https://gallery.ecr.aws/nginx/nginx-prometheus-exporter) or [Quay.io](https://quay.io/repository/nginx/nginx-prometheus-exporter/tag/{{version-number}}?tab=tags).
            - Download the latest binaries from the [GitHub releases page](https://github.com/nginxinc/nginx-prometheus-exporter/releases/tag/{{version}}).
            - Update to the latest version with `brew upgrade nginx-prometheus-exporter`, `snap refresh nginx-prometheus-exporter` or `scoop update nginx-prometheus-exporter`.

            ## Compatibility

            - NGINX 0.1.18 or newer.
            - NGINX Plus R19 or newer.
        if: github.event_name != 'pull_request'

      - name: Download Syft
        uses: anchore/sbom-action/download-syft@55dc4ee22412511ee8c3142cbea40418e6cec693 # v0.17.8
        if: github.ref_type == 'tag'

      - name: Install Cosign
        uses: sigstore/cosign-installer@dc72c7d5c4d10cd6bcb8cf6e3fd625a9e5e537da # v3.7.0
        if: github.ref_type == 'tag'

      - name: Setup Snapcraft
        run: |
          sudo snap install snapcraft --classic
          mkdir -p $HOME/.cache/snapcraft/download
          mkdir -p $HOME/.cache/snapcraft/stage-packages
        if: github.ref_type == 'tag'

      - name: Install Nix
        uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 # v30
        with:
          github_access_token: ${{ secrets.GITHUB_TOKEN }}
        if: github.ref_type == 'tag'

      - name: Run GoReleaser
        uses: goreleaser/goreleaser-action@9ed2f89a662bf1735a48bc8557fd212fa902bebf # v6.1.0
        with:
          version: v2.4.8 # renovate: datasource=github-tags depName=goreleaser/goreleaser
          args: ${{ github.ref_type == 'tag' && 'release' || 'build --snapshot' }} --clean
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          NGINX_GITHUB_TOKEN: ${{ secrets.NGINX_PAT }}
          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK_COMMUNITY }}
          SNAPCRAFT_STORE_CREDENTIALS: ${{ secrets.SNAPCRAFT_LOGIN }}

      - name: Print NGINX Prometheus Exporter info
        run: ./dist/nginx-prometheus-exporter_linux_amd64_v1/nginx-prometheus-exporter --version
        continue-on-error: true

      - name: Build and Push Docker Image
        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6.9.0
        with:
          file: build/Dockerfile
          context: "."
          target: goreleaser
          platforms: ${{ env.DOCKER_PLATFORMS }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          annotations: ${{ steps.meta.outputs.annotations }}
          push: true
          cache-from: type=gha,scope=exporter
          cache-to: type=gha,scope=exporter,mode=max
          no-cache: ${{ github.event_name != 'pull_request' }}
          provenance: mode=max
          sbom: true

      - name: Scan image
        uses: anchore/scan-action@869c549e657a088dc0441b08ce4fc0ecdac2bb65 # v5.3.0
        id: scan
        continue-on-error: true
        with:
          image: localhost:5000/nginx/nginx-prometheus-exporter:${{ steps.meta.outputs.version }}
          only-fixed: true
          add-cpes-if-none: true

      - name: Upload scan result to GitHub Security tab
        uses: github/codeql-action/upload-sarif@f09c1c0a94de965c15400f5634aa42fac8fb8f88 # v3.27.5
        continue-on-error: true
        with:
          sarif_file: ${{ steps.scan.outputs.sarif }}