The next step in the process of setting your Mobile DevOps environment is to get hold of your code quality. I prefer SonarQube in the DevOps tool chain to evaluate my app code quality.
What is SonarQube?
Setting up SonarQube Server
We will install SonarQube (v6.5) on our Ubuntu 16.04 Operating System. SonarQube’s default embedded database is H2 but as it is not production ready, we’ll simply install PostgreSQL as its replacement.
To configure SonarQube and PostgreSQL as interrelated services, we’re going to use Docker compose file as it ensures easy management. Although, we can configure tons of features with the help of Docker compose file, discussing them all is beyond the scope of this tutorial.
Follow these steps to setup SonarQube in Docker.
- Clone the repository to the system.
- Execute docker-compose inside the cloned repository.
$ docker-compose up -d
Upon doing this, you should see a screen similar to the one below, showcasing the details of SonarQube and PostgreSQL download.
- To check if SonarQube is running, execute the following URL:
If installed on the remote server – $ http://<server-ip>:9000
If installed on local system – $ http://localhost:9000
The URL will open a welcome screen, similar to the one below, which confirms that the SonarQube is successfully installed and running on the system.
Install SonarQube Plugin in Jenkins
Now, we’ll install SonarQube plugin to support SonarQube integration with Jenkins.
- Click on ‘Manage Jenkins’ option on the left side of Jenkins home screen.
- Click on ‘Manage Plugin’ on the right side of the screen.
- Navigate to ‘Available’ tab and perform a search for “SonarQube Scanner for Jenkins” plugin. Since the names of plugin’s often change, ensure you are using the correct name by crosschecking it from the official SonarQube site.
- Check the checkbox next to the desired plugin and click “Install without restart”. Installation should begin in the next screen.
Configure SonarQube Plugin in Jenkins
Before configuring the Jenkins server, we first need to generate an authentication token. This token is used by SonarQube scanner to upload the scanned code’s report to SonarQube server. The first login throws up the option of generating the authentication token. Follow the steps to generate the token, which could be anything. We named it Test.
We can also generate authentication token from security tab in My Account. To do so, click on the image icon on top right > My Account > Security > Enter token name > Generate.
After installing the plugin and generating the authentication token, it is time to configure the plugin. Before that, we need to tell Jenkins about SonarQube server, and for that we need to:
- Go to Jenkins home > Manage Jenkins > Configure System > SonarQube Servers
- Click on ‘Add SonarQube’
- Enter the name, server location, and authentication token
- Click ‘Save’
Next, we’ll use Jenkins to install the SonarQube scanner on the server, if it is not already available.
- Go to Jenkins home > Manage Jenkins > Global Tool Configuration > SonarQube Scanner.
- Click ‘Add SonarQube Scanner’.
- Click ‘Install Automatically’ and choose the version of SonarQube Scanner to install. At the time of writing this tutorial, the latest version was 126.96.36.1998
- Finally, click ‘Save’.
Setup SonarQube in Job
To run the SonarQube scanner, we’ll create a new Job with the name SonarTest, through the following steps;
- Go to Job configure screen.
- Setup the Git repository for app source.
- Setup build trigger to poll SCM with “* * * * *”.
- Check the box next to “Delete workspace before build starts”.(optional)
- Look for Build section and click on Add build step.
- Choose “Execute SonarQube Scanner”.
- Enter the details of the project including name, project key, and android project source path.
- Click ‘Save’.
Execute SonarQube Scanner
SonarQube Scanner starts scanning projects the moment we push changes to the Git repository. If auto scanning doesn’t starts, initiate it by clicking ‘Build Now’ at the Job home screen. We can now view the complete output log of the Job via console output. The path of the report is also available in the log.
View Report on SonarQube Dashboard
To view the Scanner report, we need to log into SonarQube server dashboard.
Thank you for going through the complete blog post. Feedback and comments for improvement are welcome. In the next tutorial, we’ll learn to “Test Android Apps and Notify the Concerned User through email using Jenkins”.
Until next time,
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