nginx.yml

name: nginx instrumentation CI

on:
  push:
    branches: "*"
    paths:
      - 'instrumentation/nginx/**'
      - '.github/workflows/nginx.yml'
  pull_request:
    branches: [ main ]
    paths:
      - 'instrumentation/nginx/**'
      - '.github/workflows/nginx.yml'

jobs:
  nginx-build-test:
    name: nginx
    runs-on: ubuntu-20.04
    strategy:
      matrix:
        os: [ubuntu-20.04, ubuntu-18.04, debian-10.11, debian-11.3]
        nginx-rel: [mainline, stable]
    steps:
      - name: checkout otel nginx
        uses: actions/checkout@v3
      - name: setup
        run: |
          sudo ./instrumentation/nginx/ci/setup_environment.sh
      - name: generate dockerfile
        run: |
          cd instrumentation/nginx/test/instrumentation
          mix local.hex --force --if-missing
          mix local.rebar --force --if-missing
          mix deps.get
          mix dockerfiles .. ${{ matrix.os }}:${{ matrix.nginx-rel }}
      - name: setup buildx
        id: buildx
        uses: docker/setup-buildx-action@master
        with:
          install: true
      - name: cache docker layers
        uses: actions/cache@v3
        with:
          path: /tmp/buildx-cache/
          key: nginx-${{ matrix.os }}-${{ matrix.nginx-rel }}-${{ github.sha }}
          restore-keys: |
            nginx-${{ matrix.os }}-${{ matrix.nginx-rel }}
      - name: build express backend docker
        run: |
          cd instrumentation/nginx
          docker buildx build -t otel-nginx-test/express-backend \
            -f test/backend/simple_express/Dockerfile \
            --cache-from type=local,src=/tmp/buildx-cache/express \
            --cache-to type=local,dest=/tmp/buildx-cache/express-new \
            --load \
            test/backend/simple_express
      - name: build nginx docker
        run: |
          cd instrumentation/nginx
          docker buildx build -t otel-nginx-test/nginx \
            --build-arg image=$(echo ${{ matrix.os }} | sed s/-/:/) \
            -f test/Dockerfile.${{ matrix.os }}.${{ matrix.nginx-rel }} \
            --cache-from type=local,src=/tmp/buildx-cache/nginx \
            --cache-to type=local,dest=/tmp/buildx-cache/nginx-new \
            --load \
            .
      - name: update cache
        run: |
          rm -rf /tmp/buildx-cache/express
          rm -rf /tmp/buildx-cache/nginx
          mv /tmp/buildx-cache/express-new /tmp/buildx-cache/express
          mv /tmp/buildx-cache/nginx-new /tmp/buildx-cache/nginx
      - name: run tests
        run: |
          cd instrumentation/nginx/test/instrumentation
          mix test
      - name: copy artifacts
        id: artifacts
        run: |
          cd instrumentation/nginx
          mkdir -p /tmp/otel_ngx/
          docker buildx build -f test/Dockerfile.${{ matrix.os }}.${{ matrix.nginx-rel}} \
          --target export \
          --cache-from type=local,src=/tmp/.buildx-cache \
          --output type=local,dest=/tmp/otel_ngx .
      - name: upload artifacts
        uses: actions/upload-artifact@v3
        with:
          name: otel_ngx_module-${{ matrix.os }}-${{ matrix.nginx-rel }}.so
          path: /tmp/otel_ngx/otel_ngx_module.so