[et-mgmt-tools] Cobbler 0.4.0 released

[Michael DeHaan]

Cobbler 0.4.0 is out.   RPMs are already up on et.redhat.com and will be 
pushed out to the mirrors shortly.

The main feature for this release is support for PXE menus.   For those 
wanting to use PXE menus, the best thing to do is set all machines in 
your datacenter/lab to "PXE first".    To access the PXE menu, type 
"menu" at the prompt, otherwise cobbler will fall through to local boot 
in 20 seconds.   If you have a cobbler definition made for a system, 
that system will bypass the PXE menu.   This is true whether you have a 
certain MAC set to a specific profile (ex:  cobbler system add 
--name=AA:BB:CC:DD:EE:FF ...) or if you have a "default" system entry 
(cobbler system add --name=default --profile=blah).    If you have a 
default system entry and want to use the new menus, just run "cobbler 
system delete --name=default" and then "cobbler sync".   Presto, you've 
got PXE menus.   This is also documented in the manpage.

As mentioned previously on the list, I'm also reinstating the usage of 
Cheetah for vastly improved kickstart templating.   See 
http://www.cheetahtemplate.org/learn for more information.   Basically 
the existing kickstart templating is now improved with the ability to do 
if-statements and the like.  Cobbler will allow either TEMPLATE::foo or 
$foo for kickstart templating substitution.   The one thing I've found 
is that a macro such as $(list-hard-drives) does need to be escaped to 
\$(list-hard-drives) in kickstart files.   Things like passwords 
(crypted passwords often contain "$") don't need to be escaped and are 
otherwise fine.  If you do escape them though, it won't hurt.   The new 
/etc/cobbler/kickstart* files have them escaped.   If you have your own 
kickstart files, it would be worth checking for any dollarsigns that 
were unescaped, or you might see an error next time you run "cobbler sync".

This release also no longer requires running "cobbler sync" after 
"profile add" or "system add" commands as much as cobbler used to.    
Editing configuration files behind the scenes, or wanting to regenerate 
PXE menus will, however, still require running "cobbler sync".   The 
features made to minimize the need for sync were mainly done for 
applications using cobbler as a provisioning library and those users 
that occasionally forget to run sync and post questions to the list :)  

I've also incorporated some random minor bugfixes, including passing 
"--basedir" to createrepo and manpage fixes related to the 
"--local-filename" option as mentioned last week.

Questions?  Comments?   Fire away.

--Michael