Re: Getting $(allclasses) into a shellcommand

[Ed Brown]

Apt-get DOESN'T have groups?  My bad.

It was an assumption, and not really the point.  Yum (which we use)
certainly allows you to define groups, and redhat's comps.xml can be
used for customizations that way, but you could simply create text files
and parse them in your perl wrapper.  The point was to cut down the # of
defined classes, by not trying to define one for every required rpm.

And since thinking about it more this afternoon, I'd be strongly
inclined to handle the installs in the kickstart script itself, if
possible.  Checking every time cfengine runs to see if 'a few hundred
RPMs' are installed would add a lot of overhead, for something that only
needs to be done once.  If you really wanted to handle this with
cfengine, you might try doing it only if a special class is defined. For
example, we install cfengine during kickstart, and run it there for the
first time with '-d NewBuild', for some first time, one time actions.

-Ed   


On Thu, 2004-07-15 at 15:58, Russell Adams wrote:
> Apt-get has groups? Care to elaborate?
> 
> Russell
> 
> On Thu, Jul 15, 2004 at 01:40:38PM -0600, Ed Brown wrote:
> > You could define groups of rpms, (using yum groups, apt-get groups,
> > comps.xml, your own flat text files, whatever...), define a class
> > corresponding to a GROUP of rpms if any rpm in that group is missing,
> > and let your wrapper script take it from there.  $(allclasses) is
> > manageably shorter, and hopefully the hundreds of rpms are easier to
> > manage as well.
> > 
> > If this is a single group of rpms, common to all your systems, install
> > them at kickstart, and save having to check for them every time cfengine
> > runs.  
> > 
> > -Ed
> > 
> > ps. It would indeed be great if 'packages:' allowed for executing
> > actions, rather than just defining classes.
> > 
> > 
> > On Thu, 2004-07-15 at 12:16, Chip Seraphine wrote:
> > > I have some truly enormous $(allclasses) strings as a result of using 
> > > cfengine 
> > > to maintain my RPM distributions.  (If you define one 15-to-25 character 
> > > class for every RPM you need installed, and you need a few hundred RPMs 
> > > right 
> > > after a clean kickstart....)
> > > 
> > > Anyway, I am having issues passing these large lists of classes into the 
> > > perl 
> > > script that does the actual RPM installation.   Mark enlarged a buffer 
> > > somewheres when I had this problem earlier, but said buffer has been 
> > > outgrown...    I'd like to find a Proper Solution to this.
> > > 
> > > What is a better way than "/some/command $(allclasses)" for doing this 
> > > sort of 
> > > thing?  Is there some kind of iterator-type trick  anybody knows?
> > 
> > 
> > 
> > _______________________________________________
> > Help-cfengine mailing list
> > Help-cfengine@gnu.org
> > http://lists.gnu.org/mailman/listinfo/help-cfengine
> 
> 
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