Lab - using the JBoss CLI

A JBoss EAP configuration is persisted in XML configuration files. JBoss provides various tools to interact with this configuration:

• You can manually edit the XML file (not the recommended option)
• Alternatively, you can use the web console to update JBoss configuration
• JBoss Command Line Interface tool or CLI for short
• DMR API: Dynamic Model Representation API is a REST API to access JBoss CLI commands

DMR is the JBoss configuration internal representation; it is a flat XML syntax where all the settings appear at the same level.
The CLI allows you to manage and configure EAP instances or domains remotely from a command line, including writing scripts for repetitive tasks.
You can connect to the domain administration console using the CLI:

bin$ ./jboss-cli.sh --connect --controller=127.0.0.1:9999
[domain@127.0.0.1:9999 /]

The --controller option specifies the IP and port to access the domain controller. Use the read-resource command to inspect configuration objects. Here, we display details of the main-server-group server group with the read-resource command:

[domain@127.0.0.1:9999 /] /server-group=main-server-group:read-resource
{
"outcome" => "success",
"result" => {
   "management-subsystem-endpoint" => false,
   "profile" => "full",
   "socket-binding-default-interface" => undefined,
   "socket-binding-group" => "full-sockets",
   "socket-binding-port-offset" => 0,
   "deployment" => undefined,
   "deployment-overlay" => undefined,
   "jvm" => {"default" => undefined},
   "system-property" => undefined
   }
}
[domain@127.0.0.1:9999 /]