Lab 1.1 - The Daemons

Understand the Two Primary Daemons

When developing iControl LX Extensions, there are two daemons to be aware of:

• restjavad
• restnoded

restjavad presents the F5 iControl REST API, the interface to the BIG-IP platform.

restnoded presents services for developing iControl LX Extensions, in addition to acting as the interface to restjavad and the iControl REST API.

Note

In the diagram above, the orange line represents an iControl REST resource that ships with the BIG-IP platform. The green line represents a REST call to a custom iControl LX Extension.

Task 1 - Start/Stop/Restart the Daemons

Perform the following steps to complete this task:

1. Connect via SSH to your BIG-IP platform (a shortcut already exists in PuTTY - 10.1.1.245, root/default). Execute the following:

   bigstart status restnoded

   Example output:

   $ bigstart status restnoded
   restnoded    run (pid 6209) 40 days
   

   

   Note

   You can specify multiple daemons with the bigstart command. For example, the following will get the status of both ‘restjavad’ and ‘restnoded’:

   bigstart status restjavad restnoded

   To get the status of all F5 controlled daemons execute:

   bigstart status

   Please see K13444 if you wish to learn more about bigstart.

2. The following bigstart commands are supported:

   • bigstart status <daemon>
   • bigstart start <daemon>
   • bigstart restart <daemon>
   • bigstart stop <daemon>

3. Restart the restnoded & restjavad daemons by executing:

   bigstart restart restjavad restnoded

   Note

   You won’t see any logs in CLI when using this command. You’ll need to check the log files /var/log/restjavad.0.log and /var/log/restnoded/restnoded.log. This is covered in the next lab.