Subversion Repositories camp_sysinfo_client_3

#!/usr/bin/env perl

use warnings;

use strict;  

use version ; our $VERSION = '1.1.1';

# Author: R. W. Rodolico

# Date:   2016-09-11

#

# Looks at various Xen parameters, mainly which DOMU's are running on it

#

# Revision History

#

# 20250403 RWR v1.1.1

# changed parseOutput to parseXenOutput to avoid conflict with libvirt module

#

# find our location and use it for searching for libraries. library.pm must be in the same directory as the calling script

# or, if run interactively, in the parent of the modules

BEGIN {

   use FindBin;

   use File::Spec;

   # prepend the bin directory and its parent

   use lib File::Spec->catdir($FindBin::Bin), File::Spec->catdir("$FindBin::Bin/..");

   eval( 'use library;' );

   die sprintf( "Could not find library.pm in %s, INC is %s\n", __FILE__, join( "\n", @INC ) ) if $@;

}

#####

##### Change these to match your needs

#####

# Make this a list of all the modules we are going to use. You can replace undef with the version you need, if you like

my $modulesList = {

        'Data::Dumper'     => undef,

   };

# hash of commands that are needed for the system. key is the name of the command and, in some cases, the value will become

# the full path (from which or where)

my $commandsList = {

        'xl' => undef,

   };

# list of operating systems this module can be used on.

my $osList = {

#         'mswin32' => undef,

#         'freebsd' => undef,

         'linux'   => undef,

   };

# the category the return data should go into. See sysinfo for a list

my $CATEGORY = 'virtual';

#####

##### End of required

#####

# some variables needed for our system

my $errorPrepend = 'error: in ' . __FILE__; # this is prepended to any error messages

my @out; # temporary location for each line of output

# Try to load the modules we need. If we can not, then make a list of missing modules for error message.

for my $module ( keys %$modulesList ) {

   eval ( "use $module;" );

   push @out, "$errorPrepend Could not load $module" if $@;

}

if ( ! @out && ! checkOS ( $osList ) ) { # check if we are on an acceptible operating system

    push @out, "$errorPrepend Invalid Operating System";

}

if ( !@out && ! validCommandOnSystem ( $commandsList ) ) {

   push @out, "$errorPrepend Can not find some commands needed";

}

if ( !@out ) { # we made it, we have everything, so do the processing

   #####

   ##### Your code starts here. Remember to push all output onto @out

   #####

   sub parseXenOutput {

      my $output = shift;

      my @lines = split( "\n", $output );

      my %domu;

      return ( 'noname' ) unless $lines[0] =~ m/^Name/;

      return ( 'baddomu') unless $lines[1] =~ m/^Domain-0/;

      for ( my $i = 2; $i < @lines; $i++ ) {

         my ( $name,$id,$mem,$vcpu,$state,$time) = split( /\s+/, $lines[$i] );

         $domu{$name}{'id'} = $id;

         $domu{$name}{'memory'} = $mem;

         $domu{$name}{'numcpu'} = $vcpu;

      }

      return \%domu;

   }

   my $output = `xl list`;

   my $hier = &parseXenOutput( $output );

   foreach my $domu ( sort keys %$hier ) {

      my $temp = $$hier{$domu};

      foreach my $key ( sort keys %$temp ) {

         push @out, "$CATEGORY\tvirtual\t$domu\t$key\t$$temp{$key}";

      }

   } # foreach

   #####

   ##### Your code ends here.

   #####

}

# If we are testing from the command line (caller is undef), print the results for debugging

print join( "\n", @out ) . "\n" unless caller;

# called by do, which has a value of the last assignment made, so make the assignment. The equivilent of a return

my $return = join( "\n", @out );