[et-mgmt-tools] Help using the Cobbler API in triggers

[Garrett Honeycutt]

Michael DeHaan wrote:
> Jennifer Cranfill wrote:
>> Garrett Honeycutt wrote:
>>> My goal is to access a variable within Cobbler, $hostname for example,
>>> and use that in a trigger that is run whenever a system is added. Below
>>> is some pseudo code to demonstrate my aim.
>>>
>>> os.system("/usr/local/sbin/dostuff.sh $hostname")
>>
>> Cobbler passes the name of the system as the first argument to the 
>> command. If your system name is the hostname, then in python you can 
>> just use something simple like:
>>
>> machine = sys.argv[1]
>>
>> If your system name is not the hostname then you can query the 
>> hostname of the system from Cobbler. Here is some python code I've 
>> been using:
>>
>> from cobbler import api
>> cobbler_api = api.BootAPI()
>> systems = cobbler_api.systems()
>> box = systems.find(sys.argv[1])
>>
>> I'm sure there are other (and probably better) ways as well.
>>
>> -- 
>> Jennifer Cranfill
>> Systems Engineer
>> Sony Pictures Imageworks
>>
>> _______________________________________________
>> et-mgmt-tools mailing list
>> et-mgmt-tools at redhat.com
>> https://www.redhat.com/mailman/listinfo/et-mgmt-tools
> 
> Right!   I added that example here -- 
> https://fedorahosted.org/cobbler/wiki/CobblerTriggers -- so other people 
> could find it when they were
> reading the docs.
> 
> Thanks!
> 
> 
> --Michael

Thank you for all of your help. This is what I came up, not sure how 
optimal it is, as I do not code python.

========= getcert.trigger - add/system/post trigger ===========
#!/usr/bin/python

import os
import sys

from cobbler import api
cobbler_api = api.BootAPI()

# this is the systemname, not the hostname, so be sure to use the FQDN 
in the systemname
machine = sys.argv[1]

# location of getcert.sh script
getcert_cmd = "/usr/local/sbin/getcert.sh"

# set return code to 0 by default
rc = 0

# build the command string
cmd = getcert_cmd + " " + machine

# log to cobbler's logs
cobbler_api.log("running - " + cmd)

# run the command and set the return code
rc = os.system(cmd)

# exit with return code
sys.exit(rc)

==== end code ====

This allows me to run a script when I add a system that will 
pre-generate puppet certs.

-g

-- 
Garrett Honeycutt
Sr. Systems Engineer

www.speakeasy.net
Voice * Data * Managed Services