Subversion Repositories camp_sysinfo_client_3

#!/usr/bin/env perl

use warnings;

use strict;  

use version ; our $VERSION = 'v1.0.0';

# Template for modules to be used in sysinfo

# Author: R. W. Rodolico

# Date:   2017-11-24

#

# # get some information on lvm2

#

# Revision History

#

#

# 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 = {

        'lvs' => undef,

        'vgs' => undef,

        'pvs' => 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 = 'diskinfo';

#####

##### 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

   #####

   my @temp;

   my @output;

   my $line;

   my %pv;

   my %vg;

   my %lv;

   my $name;

   @output = qx( pvs --units k --noheadings );

   # this outputs several lines like the following

   #  /dev/md0   vg-md0 lvm2 a--  5860147200.00k 6995968.00k

   chomp @output;

   foreach $line ( @output ) {

      @temp = split( /\s+/, $line );

      $name = $temp[1];

      $pv{$name}{'vg'} = $temp[2];

      $pv{$name}{'size'} = $temp[5];

      $pv{$name}{'size'} =~ s/k//;

      $pv{$name}{'size'} = int( $pv{$name}{'size'} );

      $pv{$name}{'free'} = $temp[5];

      $pv{$name}{'free'} =~ s/k//;

      $pv{$name}{'free'} = int( $pv{$name}{'free'} );

   }

   # following outputs something like this

   #  vg-md0   1   9   0 wz--n- 5860147200.00k 6995968.00k

   @output = qx( 'vgs' --units k --noheadings );

   chomp @output;

   foreach $line ( @output ) {

      @temp = split( /\s+/, $line );

      $name = $temp[1];

      $vg{$name}{'size'} = $temp[6];

      $vg{$name}{'size'} =~ s/k//;

      $vg{$name}{'size'} = int( $vg{$name}{'size'} );

      $vg{$name}{'free'} = $temp[7];

      $vg{$name}{'free'} =~ s/k//;

      $vg{$name}{'free'} = int( $vg{$name}{'free'} );

   }

   # outputs something like this

   #  centos                      vg-md0 -wi-ao--   10485760.00k                                           

   @output = qx( lvs --units k --noheadings );

   chomp @output;

   foreach $line ( @output ) {

      @temp = split( /\s+/, $line );

      $name = $temp[1];

      $lv{$name}{'vg'} = $temp[2];

      $lv{$name}{'size'} = $temp[4];

      $lv{$name}{'size'} =~ s/k//;

      $lv{$name}{'size'} = int( $lv{$name}{'size'} );

   }

   my @out;

   foreach $line ( keys %lv ) {

      push @out, "$CATEGORY\t$line\tsize\t" . $lv{$line}{'size'};

      push @out, "$CATEGORY\t$line\tfstype\tlvm2 lv";

      push @out, "$CATEGORY\t$line\tvg\t" . $lv{$line}{'vg'};

   }

   foreach $line ( keys %vg ) {

      push @out, "$CATEGORY\t$line\tsize\t" . $vg{$line}{'size'};

      push @out, "$CATEGORY\t$line\tused\t" . ( $vg{$line}{'size'} - $vg{$line}{'free'}) ;

      push @out, "$CATEGORY\t$line\tfstype\tlvm2 vg";

      my @components;

      foreach my $pv ( keys %pv ) {

         if ( $pv{$pv}{'vg'} eq $line ) {

            push @components, $pv;

         }

      }

      push @out, "$CATEGORY\t$line\tcomponents\t" . join( ' ', @components );

   }

   foreach $line ( keys %pv ) {

      push @out, "$CATEGORY\t$line\tsize\t" . $pv{$line}{'size'};

      push @out, "$CATEGORY\t$line\tfstype\tlvm2 pv";

   }

   #####

   ##### 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 );