SonarQube - specify location of sonar.properties - sonarqube

Question

I'm trying to deploy SonarQube on Kubernetes using configMaps.
The latest 7.1 image I use has a config in sonar.properties embedded in $SONARQUBE_HOME/conf/ . The directory is not empty and contain also a wrapper.conf file.
I would like to mount the configMap inside my container in a other location than /opt/sonar/conf/ and specify to sonarQube the new path to read the properties.
Is there a way to do that ? (environment variable ? JVM argument ? ...)

Answer 1

It is not recommended to modify this standard configuration in any way. But we can have a look at the SonarQube sourcecode. In this file you can find this code for reading the configuration file:
private static Properties loadPropertiesFile(File homeDir) {
Properties p = new Properties();
File propsFile = new File(homeDir, "conf/sonar.properties");
if (propsFile.exists()) {
...
} else {
LoggerFactory.getLogger(AppSettingsLoaderImpl.class).warn("Configuration file not found: {}", propsFile);
}
return p;
}
So the conf-path and filename is hard coded and you get a warning if the file does not exist. The home directory is found this way:
private static File detectHomeDir() {
try {
File appJar = new File(Class.forName("org.sonar.application.App").getProtectionDomain().getCodeSource().getLocation().toURI());
return appJar.getParentFile().getParentFile();
} catch (...) {
...
}
So this can also not be changed. The code above is used here:
#Override
public AppSettings load() {
Properties p = loadPropertiesFile(homeDir);
p.putAll(CommandLineParser.parseArguments(cliArguments));
p.setProperty(PATH_HOME.getKey(), homeDir.getAbsolutePath());
p = ConfigurationUtils.interpolateVariables(p, System.getenv());
....
}
This suggests that you can use commandline parameters or environment variables in order to change your settings.

Answer 2

For my problem, I defined environment variable to configure database settings in my Kubernetes deployment :
env:
- name: SONARQUBE_JDBC_URL
value: jdbc:sqlserver://mydb:1433;databaseName=sonarqube
- name: SONARQUBE_JDBC_USERNAME
value: sonarqube
- name: SONARQUBE_JDBC_PASSWORD
valueFrom:
secretKeyRef:
name: sonarsecret
key: dbpassword
I needed to use also ldap plugin but it was not possible to configure environment variable in this case. As /opt/sonarqube/conf/ is not empty, I can't use configMap to decouple configuration from image content. So, I build my own sonarqube image adding the ldap jar plugin and ldap setting in sonar.properties :
# General Configuration
sonar.security.realm=LDAP
ldap.url=ldap://myldap:389
ldap.bindDn=CN=mysa=_ServicesAccounts,OU=Users,OU=SVC,DC=net
ldap.bindPassword=****
# User Configuration
ldap.user.baseDn=OU=Users,OU=SVC,DC=net
ldap.user.request=(&(sAMAccountName={0})(objectclass=user))
ldap.user.realNameAttribute=cn
ldap.user.emailAttribute=mail
# Group Configuration
ldap.group.baseDn=OU=Users,OU=SVC,DC=net
ldap.group.request=(&(objectClass=group)(member={dn}))