Why do environment variables fail in my sonar config? - sonarqube

Question

I'm trying to get sonar to work on OpenShift. When i try to use environment variables in the sonar.properties file they are not resolved by sonar.
The results look something like:
2013.06.18 17:22:19 INFO o.s.c.p.Database Create JDBC datasource for jdbc:mysql://${env:OPENSHIFT_MYSQL_IP}:${env:OPENSHIFT_MYSQL_PORT}/sonar?useUnicode=true&characterEncoding=utf8&rewriteBatchedStatements=true
2013.06.18 17:22:20 ERROR o.s.c.p.Database Can not connect to database. Please check connectivity and settings (see the properties prefixed by 'sonar.jdbc.').
org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Cannot load connection class because of underlying exception: 'java.lang.NumberFormatException: For input string: "OPENSHIFT_MYSQL_IP}:${env:OPENSHIFT_MYSQL_PORT}"'.)
at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549) ~[commons-dbcp-1.3.jar:1.3]
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388) ~[commons-dbcp-1.3.jar:1.3]
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044) ~[commons-dbcp-1.3.jar:1.3]
at org.sonar.core.persistence.DefaultDatabase.checkConnection(DefaultDatabase.java:140) [sonar-core-3.5.1.jar:na]
at org.sonar.core.persistence.DefaultDatabase.start(DefaultDatabase.java:69) [sonar-core-3.5.1.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_19]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_19]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_19]
at java.lang.reflect.Method.invoke(Method.java:601) ~[na:1.7.0_19]
I'm trying to understand how the variable resolution in sonar works so i can begin to figure out what is wrong on OpenShift.

Answer 1

I was able to get Sonar running using git://github.com/wenhao/openshift-sonar.git with a slight modification:
deleted the default jbossews sample app (git rm -r pom.xml src/ webapps/ROOT.war
only copied over the ROOT/ , sonar-3.3.1/ , and .openshift/action_hooks/pre_start_jbossews-1.0 from the repo
renamed pre_start_jbossews-1.0 to pre_start_jbossews (due to changes in v2 cartridge renaming)
modified ROOT/WEB-INF/classes/sonar-war.properties:
#SONAR_HOME=${env:OPENSHIFT_REPO_DIR}/webapps/sonar-3.3.1
SONAR_HOME=/var/lib/openshift/51c0c3c1e0b8cd74800000dc/app-root/repo/webapps/sonar-3.3.1
git add .
git commit/push
I'm not quite sure why ROOT/WEB-INF/classes/sonar-war.properties doesn't resolve the env variable, but sonar-3.3.1/conf/sonar.properties resolves them just fine:
sonar.jdbc.username: ${env:OPENSHIFT_MYSQL_DB_USERNAME}
sonar.jdbc.password: ${env:OPENSHIFT_MYSQL_DB_PASSWORD}