I want to set up Sonar with Jenkins. But I'm not sure if the Sonar site describes two different ways to do this or if there are two necessary steps:
As far as I understood it, it's two different ways. If this is the case, what is the difference and what are the advantages and disadvantages (between the Sonar itself and Sonar runner)?
If you want to analyse a project with SonarQube and Jenkins, here's what you need:
A SonarQube server up and running
A Jenkins server up and running with the SonarQube Scanner for Jenkins installed and configure to point to your SonarQube server
A job configured to run a SonarQube analysis on your project:
Using the default and standard SonarQube Scanner (suitable for most projects)
Using the SonarQube Scanner for MSBuild (for .NET solutions)
Using a post build action for Maven-based projects
Everything is described more in details on the SonarQube Scanner for Jenkins documentation page.