You can evaluate SonarQube using a traditional installation with the zip file or you can spin up a Docker container using one of our Docker images. Click the method you prefer below to expand the installation instructions:
where exactly do you see the message that you need to download the Community edition? There is an overview about the available editions in the download section and for the docker images we fall back to the latest community edition, but you can switch this to any other edition as well (available tags are on the docker hub) .
if you require features from a commercial edition of SonarQube, you need of cause download the specific edition to install it. you will need a license for commercial editions tho and as stated above there are actions that will render your license invalid.
you can request a trial license for the developer edition here