Subversion Repositories havirt

#!/usr/bin/env perl

# All functions related to maniplating/reporting on cluster

# part of havirt.

# Copyright 2024 Daily Data, Inc.

# 

# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following 

# conditions are met:

#

#   Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

#   Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer 

#   in the documentation and/or other materials provided with the distribution.

#   Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived

#   from this software without specific prior written permission.

# 

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT

# NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL

# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE

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# v0.0.1 20240602 RWR

# Initial setup

package cluster;

use warnings;

use strict;  

# define the version number

# see https://metacpan.org/pod/release/JPEACOCK/version-0.97/lib/version.pod

use version;

our $VERSION = version->declare("1.0.0");

use Data::Dumper;

use Exporter;

our @ISA = qw( Exporter );

our @EXPORT = qw( 

                  &list

                );

sub help {

   my @return;

   push @return, 'cluster status';

   push @return, "\t[--format|-f screen|tsv] - displays some stats on cluster resources used";

   return join( "\n", @return ) . "\n";

}

sub status {

   my $return = '';

   &main::readDB();

   my @header = ('Node','Threads','Memory','Domains','vcpu','mem_used' );

   my @data;

   my $usedmem = 0;

   my $usedcpu = 0;

   my $availmem = 0;

   my $availcpu = 0;

   my $totalDomains = 0;

   foreach my $node (sort keys %{ $main::statusDB->{'node'} } ) {

      my $memory = 0;

      my $vcpus = 0;

      my $count = 0;

      foreach my $domain ( keys %{ $main::statusDB->{'nodePopulation'}->{$node}->{'running'} } ) {

         $memory += $main::statusDB->{'virt'}->{$domain}->{'memory'};

         $vcpus += $main::statusDB->{'virt'}->{$domain}->{'vcpu'};

         $count++;

      }

      push @data, [ $node,$main::statusDB->{'node'}->{$node}->{cpu_count},$main::statusDB->{'node'}->{$node}->{memory},$count,$vcpus,$memory ];

      $usedmem += $memory;

      $usedcpu += $vcpus;

      $totalDomains += $count;

      $availmem += $main::statusDB->{'node'}->{$node}->{memory};

      $availcpu += $main::statusDB->{'node'}->{$node}->{cpu_count};

   } # outer for

   push @data, [ 'Total',$availcpu,$availmem,$totalDomains,$usedcpu,$usedmem ];

   return &main::report( \@header, \@data );

}