SONARQUBE_JDBC_* var env ignored

[gbonnefille]

Describe the bug

When setting variable environment like SONARQUBE_JDBC_* or like sonar.* (as allowed in recent release of sonarqube docker) they are ignored.

To reproduce

Run the docker-compose.yml script provided.

Expected behavior

Variables like SONARQUBE_JDBC_* or like sonar.* should be passed to bin/run.sh.

[gbonnefille]

After investigation, it is certainly due to the su sonarqube... instruction in the /tmp/init.sh.

[gbonnefille]

Possible fix:

1. install sudo in docker-cat image
2. declare sonarqube user in sudoer
3. extract user/group modifications made in /tmp/init.sh in a dedicated script
4. run this script with sudo
5. replace su ... with simple exec
6. restore USER sonarqube in Dockerfile

[gbonnefille]

Or simply explicitly pass SONARQUBE_* in the su command line.