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SonarQube Community Build | DevOps platform integration | GitHub integration | Adding analysis to GitHub Actions workflow

Adding the SonarQube Community Build analysis to your GitHub Actions workflow

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Considerations about upgrading to GitHub Action v4 Prerequisites Configuring the project analysis parameters Configuring the build.yml file Failing the workflow when the quality gate fails

Once you have created your project in SonarQube Community Build, you can add the SonarQube Community Build analysis to your GitHub Actions workflow:

  1. Configure the project analysis parameters.
  2. Add the analysis to your GitHub Actions workflows.
  3. Commit and push your code to start the analysis.

Considerations about upgrading to GitHub Action v4

v3.1.0 and below of the GitHub Action are based on Docker: at every execution of the action, a dedicated docker container is spawned. 

The advantage of using container are primarily:

  • Isolation, since the SonarScanner gets only access to the directory where the project is checked out.
  • Full control of the environment where the SonarScanner is executed, in terms of required utilities such as wget and keytool.

The use of Docker comes, however, with multiple disadvantages regarding SonarQube analysis:

  • Issues with analyzers requiring access to a system-level directory, such as cache of dependencies in Java or Dart.
  • Issues with DockerHub rate limit on peak workload scenarios.
  • Requirement by GitHub to run as root user.
  • Support for Docker-based actions limited to Linux - no support of Windows nor MacOS.

v4 removes the Docker dependency, making the action composite. The action now runs in the environment of the runner executing the GitHub workflow. 

Prerequisites

From GitHub Action version v4
  • If your runner is GitHub-hosted, all required utilities should be already provided by default. 
  • If your runner is self-hosted, ensure that the following utilities are installed and available in the PATH: unzip, wget or curl.
If your SonarQube uses certificates

If you use the sonarqube-scan-action for your GitHub Action and your SonarQube Server has certificates that need to be recognized by the GitHub runner, you'll need to set the SONAR_ROOT_CERT environment variable in GitHub (See Managing the TLS certificates on the client side).

Configuring the project analysis parameters

For general information, see Analysis parameters and the respective SonarScanner section: Maven, Gradle, NET, CLI, and NPM. 

The setting of sonar.token and sonar.host.url is specific to GitHub Actions: With GitHub Actions, you can configure these parameters in GitHub. This may be done at the global level by the global System Administrator, or at the project level by the Project Administrator as explained below (it makes sense to store the server URL at the global level).

Storing the authentication token in GitHub for your project

The authentication token used in GitHub Actions workflows should be securely stored in a GitHub secret: see GitHub's documentation on Encrypted secrets for more information. 

Proceed as follows

  1. In the SonarQube Community Build UI, generate a SonarQube Community Build token for your project. 
  2. Create a repository secret in GitHub with:
    • Name: SONAR_TOKEN
    • Value: the token you generated in the previous step.

Storing the SonarQube Server URL in GitHub for your project

Create an organization variable in GitHub with:

    • Name: SONAR_HOST_URL
    • Value:  SonarQube Server URL

Configuring the build.yml file

This section shows you how to configure your .github/workflows/build.yml file.

SonarQube Community Build doesn't support multiple branches, so you should only analyze your main branch. You can restrict analysis to your main branch by setting it as the only branch in your on.push.branches configuration in your workflow YAML file, and not using on.pull_request.

Click the scanner you're using below to expand the example configuration:

SonarScanner for Gradle

Note: A project key might have to be provided through a build.gradle file, or through the command line parameter. For more information, see the SonarScanner for Gradle documentation.

Add the following to your build.gradle file:

plugins {
  id "org.sonarqube" version "3.5.0.2730"
}

Write the following in your workflow YAML file:

name: Build
on:
  push:
    branches:
      - main # the name of your main branch
  pull_request:
    types: [opened, synchronize, reopened]
jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
      - name: Set up JDK 17
        uses: actions/setup-java@v1
        with:
          java-version: 17
      - name: Cache SonarQube packages
        uses: actions/cache@v1
        with:
          path: ~/.sonar/cache
          key: ${{ runner.os }}-sonar
          restore-keys: ${{ runner.os }}-sonar
      - name: Cache Gradle packages
        uses: actions/cache@v1
        with:
          path: ~/.gradle/caches
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
          restore-keys: ${{ runner.os }}-gradle
      - name: Build and analyze
        env:
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
          SONAR_HOST_URL: ${{ vars.SONAR_HOST_URL }}
        run: ./gradlew build sonar --info
SonarScanner for Maven

Note: A project key might have to be provided through the command line parameter. For more information, see the SonarScanner for Maven documentation.

Write the following in your workflow YAML file:

name: Build
on:
  push:
    branches:
      - main # the name of your main branch
  pull_request:
    types: [opened, synchronize, reopened]
jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
      - name: Set up JDK 17
        uses: actions/setup-java@v1
        with:
          java-version: 17
      - name: Cache SonarQube packages
        uses: actions/cache@v1
        with:
          path: ~/.sonar/cache
          key: ${{ runner.os }}-sonar
          restore-keys: ${{ runner.os }}-sonar
      - name: Cache Maven packages
        uses: actions/cache@v1
        with:
          path: ~/.m2
          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
          restore-keys: ${{ runner.os }}-m2
      - name: Build and analyze
        env:
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
          SONAR_HOST_URL: ${{ vars.SONAR_HOST_URL }}
        run: mvn -B verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar
SonarScanner for .NET

Write the following in your workflow YAML file:

name: Build
on:
  push:
    branches:
      - main # the name of your main branch
  pull_request:
    types: [opened, synchronize, reopened]
jobs:
  build:
    name: Build
    runs-on: windows-latest
    steps:
      - name: Set up JDK 17
        uses: actions/setup-java@v1
        with:
          java-version: 1.17
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
      - name: Cache SonarQube packages
        uses: actions/cache@v1
        with:
          path: ~\.sonar\cache
          key: ${{ runner.os }}-sonar
          restore-keys: ${{ runner.os }}-sonar
      - name: Cache SonarQube scanner
        id: cache-sonar-scanner
        uses: actions/cache@v1
        with:
          path: .\.sonar\scanner
          key: ${{ runner.os }}-sonar-scanner
          restore-keys: ${{ runner.os }}-sonar-scanner
      - name: Install SonarQube scanner
        if: steps.cache-sonar-scanner.outputs.cache-hit != 'true'
        shell: powershell
        run: |
          New-Item -Path .\.sonar\scanner -ItemType Directory
          dotnet tool update dotnet-sonarscanner --tool-path .\.sonar\scanner
      - name: Build and analyze
        shell: powershell
        run: |
          .\.sonar\scanner\dotnet-sonarscanner begin /k:"example" /d:sonar.token="${{ secrets.SONAR_TOKEN }}" /d:sonar.host.url="${{ vars.SONAR_HOST_URL }}"
          dotnet build
          .\.sonar\scanner\dotnet-sonarscanner end /d:sonar.token="${{ secrets.SONAR_TOKEN }}"
SonarScanner CLI


You can easily set up a basic configuration using the SonarQube Scan GitHub Actions:

You'll find the GitHub Actions and configuration instructions page on the GitHub Marketplace.

Failing the workflow when the quality gate fails

You can use the SonarQube quality gate check GitHub Action to ensure your code meets your quality standards by failing your workflow when your Quality gate fails.

If you do not want to use the SonarQube Community Build quality gate Check Action, you can instruct the scanner to wait for the SonarQube Community Build quality gate status at the end of the analysis. To enable this, pass the -Dsonar.qualitygate.wait=true parameter to the scanner in the workflow YAML file.

This will make the analysis step poll SonarQube Community Build regularly until the quality gate is computed. This will increase your workflow duration. Note that, if the quality gate is red, this will make the analysis step fail, even if the actual analysis itself is successful. We advise only using this parameter when necessary (for example, to block a deployment workflow if the quality gate is red). 

You can set the sonar.qualitygate.timeout property to an amount of time (in seconds) that the scanner should wait for a report to be processed. The default is 300 seconds.

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