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Re: syncing files....


From: John Sechrest
Subject: Re: syncing files....
Date: Mon, 09 Feb 2004 10:18:07 -0800

Earlier, I posted my script for determining packages on a per
host basis. And I was able to install packages with that script. 
It has two parts:

The CFengine rules:

#################################################################
#
# cf.packages - for vnl
#
# Look for what debian style / apt-get based packages should be installed
#
#################################################################


control:
   split = ( ${n} )
   packagestohave = ( ReadFile(/var/mln/packagelist,4000) )

shellcommands:
              
   any:: 
        
   "/usr/bin/apt-get install ${packagestohave}"

 
###
#
# END cf.packages
#
###

this probably needs to be more robust


And the script for determining packages:

#!/usr/bin/perl
#
# 2004/01/24
# John Sechrest/ Kyrre Begnum
# address@hidden / address@hidden
#
# module:getrolebyhost
#
# Given the file named: $file
# and a hostname called $host
# then find all of the roles that the host has
# and then print them out with a + in front

# Future OPTION: if there is a conflict between roles, put roles
# that are in conflict up with a -...

# The file is of the form:
# ID  machine   host   role featurelist
# as a tab seperated file 
# Like: 
# 3 rex host1 web 
# 4 rex host2 dns
$debug=0;

# Get the filename and hostname out of the parameters
# They should be in ArgV
# assume that $ARGV[0] = filename;
# and that $ARGV[1] = hostname;

if ($debug) {print "#Argv: $#ARGV\n";}
if ($#ARGV != 1) {
    print "MODULE ERROR: Arguments to getrolebyhost must be: filename 
hostname\n";
    exit(1);
}

$filename=$ARGV[0];
$hostname=$ARGV[1];

#Open the file
if ($debug) {print "Filename: $filename\n";}
if ($debug) {print "hostname: $hostname\n";}

open (MYFILE , "< $filename") or die"Module ERROR: Could Not open $filename\n" ;


# For each line in the file
while ( $line=<MYFILE> ){
    if ($debug) {print "line: $line\n";}
    $line=~s/#.*$//;    # Delete any comments
    if ($debug) {print "line w/o #: $line\n";}

    ($id,$machine,$host,$role,$featurelist) = split /\t+/, $line; 
    if ($debug) {print "host: $host\n";}
    if ($debug) {print "hostname: $hostname\n";}

  # if it is for host $host, then get the role
  #  write out +role

    if ( $host eq $hostname ){
        print "+$role\n";
    }

# end
}

# close file
close MYFILE;







John Gray <address@hidden> writes:

 % Nate Campi wrote:
 % 
 % >On Mon, Feb 09, 2004 at 10:14:10AM +0100, Thomas Glanzmann wrote:
 % >  
 % >
 % >>Hi,
 % >>
 % >>    
 % >>
 % >>>And note that some packages will not install correctly as long as
 % >>>cfagent doesn't have a console, for example proftpd and emacs.
 % >>>Unfortunately, some installs use < /dev/tty, sigh. Oh, and some
 % >>>packages still use shell read,
 % >>>      
 % >>>
 % >>I know only about one package that ends up in a endless loop when
 % >>pressing all the time return (it's gpm) and gpm is broken anyway.
 % >>
 % >>But in order to install such packet you can add a divertation (look at
 % >>FAI).
 % >>    
 % >>
 % >
 % >Does anyone actually have working debian package management examples for
 % >cfengine? It would be nice to have something to start with.
 % >  
 % >
 % Other than Will's script?  Or do you mean sample package lists?  I'd be 
 % interested in seeing see sample package lists.
 % 
 % We are modifing Will's script to be cfengine class oriented right now.  
 % Just a couple of minor changes and we'll having looking for packages 
 % according to classes instead according to its farm as the script does now.
 % 
 % John
 % 
 % -- 
 % John Gray                           address@hidden
 % AgoraNet, Inc.                      (302) 224-2475
 % 102 E. Main Street, Suite 303       (302) 224-2552 (fax)
 % Newark, De 19711                    http://www.agora-net.com
 % 
 % 
 % 
 % _______________________________________________
 % Help-cfengine mailing list
 % address@hidden
 % http://mail.gnu.org/mailman/listinfo/help-cfengine

-----
John Sechrest          .         Helping people use
                        .           computers and the Internet
                          .            more effectively
                             .                      
                                 .       Internet: address@hidden
                                      .   
                                              . http://www.peak.org/~sechrest




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