Re: defining large groups by domain name

[John Sechrest]

I think this may be a version issue. What version are you using?



rader@ginseng.hep.wisc.edu writes:

 % 
 % Ummm... using a module to define a classes in group: isn't working
 % for me...
 % 
 %  $ hostname
 %  ginseng
 %  $ cat /var/cfengine/modules/HostMatch
 %  #!/usr/bin/perl  
 %  if ( `hostname` =~ /$ARGV[0]/ ) { print "+$ARGV[1]\n"; }
 %  $ /var/cfengine/modules/HostMatch ginseng g3_node
 %  +g3_node
 %  $ cat cftest2
 %  #!/usr/sbin/cfagent --no-splay --inform --no-lock --file
 %  control: 
 %    moduledirectory = ( /var/cfengine/modules )
 %    actionsequence = ( shellcommands )
 %    AddInstallables = ( specialclass )
 %  groups:
 %    g3_node_bugus = ( PrepModule(HostMatch, "ginseng g3_node") )
 %  shellcommands:
 %    g3_node:: "/bin/echo g3_node is defined"
 %  $ ./cftest2
 %  $ 
 % 
 % ?
 % 
 % I put some debug stmts in to try to figure this out, but I've
 % forgotten exactly what the problem is.  My recollection is that
 % there's something special about group: actions.
 % 
 % And, besides, they sytax above is ugly and I've already written
 % the code for
 % 
 %  groups:
 %    g3_compute_nodes =   ( HostRange(g3,01-35) )
 % 
 % steve 
 % - - - 
 % systems & network guy
 % high energy physics
 % university of wisconsin
 % 
 %  > ---- Original Message ----
 %  > From: Brendan Strejcek
 %  > rader@ginseng.hep.wisc.edu wrote:
 %  > 
 %  > > I tried writing a module but debug output makes me think that modules
 %  > > can only define macros--not groups.
 %  > 
 %  > Modules can define classes or macros. Here is a simple sh module that
 %  > accomplishes what you want:
 %  > 
 %  > #!/bin/sh
 %  > 
 %  > hostname | cut -f1 -d. | egrep '^g3n([0-2][0-9]|3[012345])$' &&
 %  >     echo +g3_compute_nodes
 %  > 
 %  > For more details, read this:
 %  > 
 %  > http://www.cfengine.org/docs/cfengine-Tutorial.html#Writing%20plugin%20mod
 %  > ules
 %  > 
 %  > -- Brendan
 % 
 % 
 % 
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 % Help-cfengine mailing list
 % Help-cfengine@gnu.org
 % http://mail.gnu.org/mailman/listinfo/help-cfengine

-----
John Sechrest          .         Helping people use
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