how to configure JNDI for jetty

I had some trouble with setting up JNDI support for jetty.
Here is my solution. Hopefully someone will find it useful.

jetty plugin for maven in pom.xml

<plugins>
  ...


    <plugin>
      <groupId>org.mortbay.jetty</groupId>
      <artifactId>maven-jetty-plugin</artifactId>
      <version>6.1.5</version>
      <configuration>
        ...
          <jettyEnvXml>${basedir}/etc/jetty/jetty-env.xml</jettyEnvXml>
        ...
      </configuration>
    </plugin>
  ...
</plugins>

And jetty-env.xml itself is following


<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://jetty.mortbay.org/configure.dtd">
<Configure class="org.mortbay.jetty.webapp.WebAppContext">
  <New id="datasource" class="org.mortbay.jetty.plus.naming.Resource">
    <Arg>jdbc/dsname</Arg>
    <Arg>
      <New class="com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource">
        <Set name="Url">jdbc:mysql://localhost:3306/databasename</Set>
        <Set name="User">...</Set>
        <Set name="Password">...</Set>
      </New>
    </Arg>
  </New>
</Configure>


Quite simple, isn't it?