+<pre>
+# arv root user setup exampleUserName
+</pre>
+
+Run the diagnostics tool to ensure everything is working.
+
+<pre>
+# arv root diagnostics
+</pre>
+
+h2. Customize the cluster
+
+Things you should plan to update before using your cluster in production:
+* "Set up Google login":{{site.baseurl}}/install/setup-login.html or another authentication option.
+* Set up a wildcard TLS certificate and DNS name, or enable @TrustAllContent@ mode.
+* Update storage configuration to use a cloud storage bucket instead of the local filesystem.
+* Update CloudVMs configuration to use a cloud provider to bring up VMs on demand instead of running containers on the server host.
+
+h2. Updating configuration
+
+After updating your configuration file (@/etc/arvados/config.yml@), notify the server:
+
+<pre>
+# systemctl reload arvados-server
+</pre>