error-pages/.github/workflows/tests.yml

name: tests

on:
  push:
    branches: [master, main]
    tags-ignore: ['**']
    paths-ignore: ['**.md']
  pull_request:
    paths-ignore: ['**.md']

jobs: # Docs: <https://git.io/JvxXE>
  gitleaks:
    name: Gitleaks
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@v2
        with: {fetch-depth: 0}

      - uses: zricethezav/gitleaks-action@v1 # Action page: <https://github.com/zricethezav/gitleaks-action>

  golangci-lint:
    name: Golang-CI (lint)
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@v2

      - name: Run linter
        uses: golangci/golangci-lint-action@v2 # Action page: <https://github.com/golangci/golangci-lint-action>
        with:
          version: v1.42 # without patch version
          only-new-issues: false # show only new issues if it's a pull request

  go-test:
    name: Unit tests
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/setup-go@v2
        with: {go-version: 1.17}

      - uses: actions/checkout@v2
        with: {fetch-depth: 2} # Fixes codecov error 'Issue detecting commit SHA'

      - name: Go modules Cache # Docs: <https://git.io/JfAKn#go---modules>
        uses: actions/cache@v2
        id: go-cache
        with:
          path: ~/go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: ${{ runner.os }}-go-

      - if: steps.go-cache.outputs.cache-hit != 'true'
        run: go mod download

      - name: Run Unit tests
        run: go test -race -covermode=atomic -coverprofile /tmp/coverage.txt ./...

      - uses: codecov/codecov-action@v2 # https://github.com/codecov/codecov-action
        continue-on-error: true
        with:
          file: /tmp/coverage.txt
          token: ${{ secrets.CODECOV_TOKEN }}

  build:
    name: Build for ${{ matrix.os }} (${{ matrix.arch }})
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        os: [linux, darwin] # linux, freebsd, darwin, windows
        arch: [amd64]  # amd64, 386
    needs: [golangci-lint, go-test]
    steps:
      - uses: actions/setup-go@v2
        with: {go-version: 1.17}

      - uses: actions/checkout@v2

      - uses: gacts/github-slug@v1
        id: slug

      - name: Go modules Cache # Docs: <https://git.io/JfAKn#go---modules>
        uses: actions/cache@v2
        with:
          path: ~/go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: ${{ runner.os }}-go-

      - run: go mod download

      - name: Build application
        env:
          GOOS: ${{ matrix.os }}
          GOARCH: ${{ matrix.arch }}
          CGO_ENABLED: 0
          LDFLAGS: -s -w -X github.com/tarampampam/error-pages/internal/version.version=${{ steps.slug.outputs.branch-name-slug }}@${{ steps.slug.outputs.commit-hash-short }}
        run: go build -trimpath -ldflags "$LDFLAGS" -o ./error-pages ./cmd/error-pages/

      - name: Try to execute
        if: matrix.os == 'linux'
        run: ./error-pages version && ./error-pages -h

      - uses: actions/upload-artifact@v2
        with:
          name: error-pages-${{ matrix.os }}-${{ matrix.arch }}
          path: error-pages
          if-no-files-found: error
          retention-days: 1

  generate:
    name: Run templates generator
    runs-on: ubuntu-20.04
    needs: [build]
    steps:
      - uses: actions/checkout@v2

      - uses: actions/download-artifact@v2
        with:
          name: error-pages-linux-amd64
          path: .artifact

      - name: Prepare binary file to run
        working-directory: .artifact
        run: mv ./error-pages ./../error-pages && chmod +x ./../error-pages

      - name: Run generator
        run: ./error-pages build ./out --verbose --index

      - name: Test files creation
        run: |
          test -f ./out/index.html
          test -f ./out/ghost/404.html
          test -f ./out/l7-dark/404.html
          test -f ./out/l7-light/404.html
          test -f ./out/shuffle/404.html
          test -f ./out/noise/404.html
          test -f ./out/hacker-terminal/404.html

  docker-image:
    name: Build docker image
    runs-on: ubuntu-20.04
    needs: [golangci-lint, go-test]
    steps:
      - uses: actions/checkout@v2

      - uses: gacts/github-slug@v1
        id: slug

      - uses: docker/build-push-action@v2 # Action page: <https://github.com/docker/build-push-action>
        with:
          context: .
          file: Dockerfile
          push: false
          build-args: "APP_VERSION=${{ steps.slug.outputs.branch-name-slug }}@${{ steps.slug.outputs.commit-hash-short }}"
          tags: app:ci

      - run: docker save app:ci > ./docker-image.tar

      - uses: actions/upload-artifact@v2
        with:
          name: docker-image
          path: ./docker-image.tar
          retention-days: 1

  scan-docker-image:
    name: Scan the docker image
    runs-on: ubuntu-20.04
    needs: [docker-image]
    steps:
      - uses: actions/download-artifact@v2
        with:
          name: docker-image
          path: .artifact

      - working-directory: .artifact
        run: docker load < docker-image.tar

      - uses: anchore/scan-action@v3 # action page: <https://github.com/anchore/scan-action>
        with:
          image: app:ci
          fail-build: true
          severity-cutoff: low # negligible, low, medium, high or critical

  poke-docker-image:
    name: Run the docker image
    runs-on: ubuntu-20.04
    needs: [docker-image]
    timeout-minutes: 2
    steps:
      - uses: actions/download-artifact@v2
        with:
          name: docker-image
          path: .artifact

      - working-directory: .artifact
        run: docker load < docker-image.tar

      - name: Run container with the app
        run: docker run --rm -d -p "8080:8080/tcp" --name app app:ci

      - name: Wait for container "healthy" state
        run: until [[ "`docker inspect -f {{.State.Health.Status}} app`" == "healthy" ]]; do echo "wait 1 sec.."; sleep 1; done

      - run: curl --fail http://127.0.0.1:8080/500.html
      - run: curl --fail http://127.0.0.1:8080/400.html
      - run: curl --fail http://127.0.0.1:8080/health/live
      - run: test $(curl --write-out %{http_code} --silent --output /dev/null http://127.0.0.1:8080/) -eq 404

      - name: Stop the container
        if: always()
        run: docker kill app