Updated Express documentation

distrib/openshift.mkd

@@ -5,21 +5,26 @@ application repository.  Gitblit Express is an exploded WAR file with all approp
 dependencies bundled.
 
 You should delete the `pom.xml` file and the `src` folder from your application repository
-as this Gitblit Express is not a source distribution to be built with Maven on OpenShift.
+as Gitblit Express is not a source distribution to be built with Maven on OpenShift.
 
 Gitblit automatically adjusts itself to running on OpenShift.  Repositories, users,
-federation proposals, and setting overrides are stored in *OPENSHIFT_DATA_DIR*.
+federation proposals, setting overrides, and Groovy push scripts are stored in *OPENSHIFT_DATA_DIR*.
 
 It is recommended to enable all RPC settings in the `web.xml` file to allow remote
 administration and, more importantly, configuration of your Gitblit Express
 installation using the Gitblit Manager.
 
+It is also recommended to set *web.forwardSlashCharacter* to ! because OpenShift
+runs on JBoss/Tomcat behind a proxy, neither of which are friendly to embedded
+forward-slashes.
+
 Please do not change the following settings unless you know exactly what you are
 doing:
 
 - *git.repositoriesFolder*
+- *groovy.scriptsFolder*
 - *federation.proposalsFolder*
-- *realm.userService* (for standard users.properties)
+- *realm.userService* (for standard users.conf)
  
 Additionally, it is recommended to force your Gitblit installation to cleanup up
 older versions on your OpenShift filesystem to maximize available space for your
@@ -29,6 +34,22 @@ Append the following command to your ./openshift/action_hooks/build file:
 
     rm -fr $OPENSHIFT_APP_DIR/jbossas-7.0/standalone/tmp/vfs/*
 
+Lastly, you may want to play with the heap and permgen settings of your Gitblit
+instance because the default heap for the JVM is 95 MB, which may be a little
+tight.
+
+To do that you will have to login to your account via ssh:
+
+    ssh hashcode@app-domain.rhcloud.com
+
+and then you will have to manipulate the -Xmx and -XX:MaxPermSize values.
+
+    vi $OPENSHIFT_APP_DIR/jbossas-7.0/bin/standalone.conf
+    ctl_app restart
+
+OpenShift currently allows 300MB of memory per application which includes ssh access, JVM, etc.
+The Gitblit demo hosted on OpenShift Express operates with -Xmx160m and -XX:MaxPermSize=90m.
+
 For more detailed instructions on how to setup and deploy an OpenShift application
 please see this excellent turorial: