Subversion Repositories camp_sysinfo_client_3

#!/usr/bin/env perl

use warnings;

use strict;

# Description: Processes Xen Clients

our $VERSION = '1.1';

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

# Written by RWR, 20160911

# find our location and use it for searching for libraries

BEGIN {

   use FindBin;

   use File::Spec;

   use lib File::Spec->catdir($FindBin::Bin);

   eval( 'use library;' );

   die "Could not find library.pm in the code directory\n" if $@;

   eval( 'use Data::Dumper;' );

}

# check for valid OS. 

exit 1 unless &checkOS( { 'linux' => undef } );

# check for required commands, return 2 if they don't exist. Enter an full list of all commands required. If one doesn't exist

# script returns a 2

foreach my $command ( 'xl' ) {

   exit 2 unless &validCommandOnSystem( $command );

}

# category we will use for all values found

# see sysinfo for a list of valid categories

my $CATEGORY = 'xen';

# run the commands necessary to do whatever you want to do

# The library entered above has some helper routines

# validCommandOnSystem -- passed a name, returns the fully qualified path or

# '' if it does not exist

# cleanUp - passed a delimiter and a string, does the following (delimiter

# can be '')

#           chomps the string (removes trailing newlines)

#           removes all text BEFORE the delimiter, the delimiter, and any

# whitespace

#           thus, the string 'xxI Am x  a weird string' with a newline will

# become

#           'a weird string' with no newline

# now, return the tab delimited output (to STDOUT). $CATEGORY is the first

# item, name as recognized by sysinfo is the second and the value is

# the last one. For multiple entries, place on separate lines (ie, newline

# separated)

my $xl = 'xl';

exit 1 unless $xl;

$xl .= ' list';

sub parseOutput {

   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`;

my $hier = &parseOutput( $output );

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

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

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

      print "$CATEGORY\tvirtual\t$domu\t$key\t$$temp{$key}\n";

   }

} # foreach

# if you have not done an exit state above (1 indicating no data), do one

# here (exit 0 indicates success)

# NOTE: you can bail early with exit 1 if you can not process anything

# because it is the wrong system or something

exit 0;