[xwiki-users] Using a JDNI DataSource for connection pooling

I've been exploring connection pooling for an external database, but I'm struggling to use it. I'm running XWiki 6.3 on a Ubuntu server. In /etc/xwiki/context.xml I have <?xml version="1.0" encoding="UTF-8"?> <Context> <!-- JDBC datasource for myDB --> <Resource name="jdbc/mydbds" auth="Container" type="javax.sql.DataSource" username="dbuser" password="dbpass" driverClassName="org.postgresql.Driver" url="jdbc:postgresql:alertdb" maxActive="10" maxIdle="4" /> </Context> And I have a symlink to this at /usr/lib/xwiki/WEB-INF/context.xml I'm trying to test that I can access this with a Groovy script. I'm not entirely sure of the correct approach here, but the most successful I've got it with {{groovy}} import groovy.sql.Sql import javax.naming.Context import javax.naming.InitialContext import javax.sql.DataSource Context ctx = new InitialContext(); DataSource dataSource = (DataSource) ctx.lookup("jdbc/mydbds"); def sql = new Sql(dataSource) {{/groovy}} However this fails with javax.naming.NameNotFoundException: Name [jdbc/mydbds] is not bound in this Context. Unable to find [jdbc]. Would anyone be able to tell me whether this is the right sort of way to be going about using a JNDI resource, and what's wrong with my implementation?