Gerrit Code Review - J2EE Installation

Description

Gerrit binary distributions include a standalone Jetty servlet container, but are packaged as a standard WAR file to permit easy deployment to other existing container installations if using the standalone daemon is not desired.

Gerrit Code Review can be installed into any J2EE servlet container, including popular open source containers such as Jetty or Tomcat, or any commercial server which supports the J2EE servlet specification.

Installation

• Complete the database setup and site initialization tasks described in the standard installation documentation.

• Stop the embedded daemon that was automatically started by init:

    review_site/bin/gerrit.sh stop
  

• Configure JNDI DataSource jdbc/ReviewDb.

  This DataSource must point to the database you created above. Don’t forget to ensure your JNDI configuration can load the necessary JDBC drivers. You may wish to ensure connection pooling is configured and enabled within the DataSource.

• Deploy the gerrit.war file to your application server.

  The deployment process differs between servers, but typically this can be accomplished by copying gerrit.war into the webapps/ subdirectory of the container’s installation.

• (Optional) Install Bouncy Castle Crypto API

  If you enabled Bouncy Castle Crypto during init, copy the JAR from '$site_path'/lib into your servlet container’s extensions directory so it’s available to Gerrit Code Review.

• (Optional) Configure Automatic Site Initialization on Startup

Jetty 7.x

These directions will configure Gerrit as the default web application, allowing URLs like http://example.com/4543 to jump directly to change 4543.

Download and unzip a release version of Jetty. From here on we call the unpacked directory $JETTY_HOME.

• Jetty Downloads

If this is a fresh installation of Jetty, move into the installation directory and do some cleanup to remove the sample webapps:

  cd $JETTY_HOME
  rm -rf contexts/* webapps/*

Copy Gerrit Code Review into the deployment:

  cp ~/gerrit.war webapps/gerrit.war
  java -jar webapps/gerrit.war cat extra/jetty7/gerrit.xml >contexts/gerrit.xml

Install the required additional libraries by copying them into the '$JETTY_HOME'/lib/ext directory:

  cp ../review_db/lib/* lib/ext/
  java -jar webapps/gerrit.war cat lib/commons-dbcp-1.2.2.jar >lib/ext/commons-dbcp-1.2.2.jar
  java -jar webapps/gerrit.war cat lib/commons-pool-1.5.4.jar >lib/ext/commons-pool-1.5.4.jar
  java -jar webapps/gerrit.war cat lib/h2-1.2.128.jar >lib/ext/h2-1.2.128.jar
  java -jar webapps/gerrit.war cat lib/postgresql-8.4-701.jdbc4.jar >lib/ext/postgresql-8.4-701.jdbc4.jar

Edit '$JETTY_HOME'/contexts/gerrit.xml to correctly configure the database and outgoing SMTP connections, especially the user and password fields.

If OpenID authentication (or certain enterprise single-sign-on solutions) is being used, you may need to increase the header buffer size parameter, due to very long header lines being used by the OpenID authentication handshake process. Add the following to '$JETTY_HOME'/etc/jetty.xml under org.eclipse.jetty.server.nio.SelectChannelConnector:

  <Set name="headerBufferSize">16384</Set>

To start automatically when the system boots, create a start script and modify it for your configuration:

  java -jar webapps/gerrit.war --cat extra/jetty7/gerrit-jetty.sh >/etc/init.d/gerrit-jetty
  vi /etc/init.d/gerrit-jetty

Tip

Under Jetty, restarting the web application (e.g. after modifying system_config) is as simple as touching the context config file: '$JETTY_HOME'/contexts/gerrit.xml

Tomcat 7.x

If a reverse proxy is used in front of Tomcat then see the configuration instructions for encoding slashes. Otherwise Tomcat must be configured to encode slashes, by adding -Dorg.apache.tomcat.util.buf.UDecoder.ALLOW_ENCODED_SLASH=true to the CATALINA_OPTS environment variable.

Excerpt from the documentation:

Property org.apache.tomcat.util.buf.UDecoder.ALLOW_ENCODED_SLASH:
If this is true '%2F' and '%5C' will be permitted as path delimiters.
If not specified, the default value of false will be used.

GERRIT

Part of Gerrit Code Review

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