Question

How would you set the run.mode for a Lift application running on Resin?

When deploying on Jetty I included a jetty-web.xml in the war file that set the run.mode property to “production”. Now I need to deploy on Resin.

Answer 1

In your resin.xml or resin.properties, you can set command-line properties. If you’re using one of the most recent Resin 4.0, releases you can use the /etc/resin/resin.properties “jvm_args” property:

# Arg passed directly to the JVM
jvm_args    : -Drun.mode=production -Xmx1024m

If you’re using an older Resin without the resin.properties, you can set the <jvm-arg> inside the <server> or <server-default> tag in the /etc/resin/resin.xml:

<resin ...
  <cluster id="app">
    <server-default>
      <jvm-arg>-Drun.mode=production</jvm-arg>
      ...
    </server-default>

When Resin’s watchdog process builds the command line to launch Resin, it uses the <jvm-arg> from the resin.xml as arguments to the child Resin.

It’s possible, by the way, to have server-specific properties as well, either configured by the Resin server id or the cluster. (Or using expressions and control statements in the configuration. Probably not what you need here, though.)