[Freeipa-users] KISS: DHCP from IPA

[Rob Crittenden]

Chris Evich wrote:
> On 08/29/2012 11:57 AM, John Dennis wrote:
>> Thanks for the contribution Chris!
>>
>> Just as an aside if you know Python you can call the IPA commands
>> directly and use Python to extract and reformat the data, it might be a
>> lot simpler than doing the bash/awk dance.
>>
>
> I agree that using bash/sed/awk is a bit clunky.  I actually did stumble
> on the python stuff by accident, but wasn't able to find much reference
> / examples for how to use it.  At the time I just needed something quick
> to toss-together.  Maybe the python docs/examples are different today,
> any links handy?
>

I seem to recall this came up on either freeipa-users or freeipa-devel 
but I can't find the thread. Some decent examples got posted.

Here is something I've been twiddling with to add users from a 
well-formatted passwd file:

import sys
import re
from ipalib import api
from ipalib import errors

filename='passwd'
name_pattern = re.compile('(\w+) \w (\w+)')

api.bootstrap(context='cli')
api.finalize()
api.Backend.xmlclient.connect()

count = 0
fd = open(filename, 'r')
while True:
     line = fd.readline()
     if not line:
         break
     line = unicode(line.strip())
     try:
         (login, passwd, uid, gid, gecos, dir, shell) = line.split(':')
     except ValueError, e:
         print "mal-formed passwd entry: %s (%s)" % (e, line)
         continue
     m = name_pattern.match(gecos)
     if m:
         first = m.group(1)
         last = m.group(2)
     else:
         first = u'USER'
         last =  u'NAME'

     try:
         api.Command['user_add'](login, gidnumber=int(gid),
             uidnumber=int(uid),
             gecos=gecos.strip(), homedir=dir, shell=shell,
             givenname=first, sn=last)
     except errors.DuplicateEntry:
         print "%s already exists" % login
         continue
     ...

rob