Local modifications to ClusterLabs/Anvil by Alteeve
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#!/usr/bin/perl
#
# This prints JSON formated data reporting the status of RAM on the system.
#
use strict;
use warnings;
use Anvil::Tools;
use Data::Dumper;
use JSON;
$| = 1;
my $THIS_FILE = ($0 =~ /^.*\/(.*)$/)[0];
my $running_directory = ($0 =~ /^(.*?)\/$THIS_FILE$/)[0];
if (($running_directory =~ /^\./) && ($ENV{PWD}))
{
$running_directory =~ s/^\./$ENV{PWD}/;
}
my $anvil = Anvil::Tools->new();
$anvil->Get->switches;
$anvil->Database->connect;
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, secure => 0, key => "log_0132"});
if (not $anvil->data->{sys}{database}{connections})
{
# No databases, exit.
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, 'print' => 1, priority => "err", key => "error_0003"});
$anvil->nice_exit({exit_code => 1});
}
my $cookie_problem = $anvil->Account->read_cookies();
# Don't do anything data-related if the user is not logged in.
if ($cookie_problem)
{
$anvil->Log->entry({ source => $THIS_FILE, line => __LINE__, level => 0, 'print' => 1, priority => "err", key => "error_0307" });
$anvil->nice_exit({ exit_code => 1 });
}
# Read in any CGI variables, if needed.
$anvil->Get->cgi();
$anvil->Database->get_hosts();
$anvil->Database->get_anvils();
print $anvil->Template->get({file => "shared.html", name => "json_headers", show_name => 0})."\n";
my $target = $anvil->Get->short_host_name();
my $hash = { reserved => 8589934592 };
my $anvil_uuid = "";
if ($anvil->data->{cgi}{anvil_uuid}{value})
{
$anvil_uuid = $anvil->data->{cgi}{anvil_uuid}{value};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { anvil_uuid => $anvil_uuid }});
}
elsif ($anvil->data->{switches}{'anvil-uuid'})
{
$anvil_uuid = $anvil->data->{switches}{'anvil-uuid'};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { anvil_uuid => $anvil_uuid }});
}
if ((not $anvil_uuid) or (not exists $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}))
{
$anvil->data->{anvil_status}{anvil_name} = "!!invalid!anvil_uuid!!";
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 'anvil_status::anvil_name' => $anvil->data->{anvil_status}{anvil_name} }});
}
else
{
my $node1_uuid = $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}{anvil_node1_host_uuid};
my $node2_uuid = $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}{anvil_node2_host_uuid};
my $dr1_uuid = $anvil->data->{anvils}{anvil_uuid}{$anvil_uuid}{anvil_dr1_host_uuid};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
node1_uuid => $node1_uuid,
node2_uuid => $node2_uuid,
dr1_uuid => $dr1_uuid,
}});
$hash->{total} = 0;
$hash->{allocated} = 0;
$hash->{hosts} = [];
my @hosts = ($node1_uuid, $node2_uuid);
if ($dr1_uuid)
{
push @hosts, $dr1_uuid;
$anvil->data->{raw}{newest_record}{$dr1_uuid} = 0;
}
foreach my $host_uuid (@hosts)
{
# Do the query
my $query = "
SELECT
a.host_name,
b.scan_hardware_ram_total,
b.scan_hardware_memory_free,
b.scan_hardware_swap_total,
b.scan_hardware_swap_free
FROM
hosts a, scan_hardware b
WHERE
a.host_uuid = b.scan_hardware_host_uuid
AND
a.host_uuid = ".$anvil->Database->quote($host_uuid)."
;";
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { query => $query }});
my $results = $anvil->Database->query({query => $query, source => $THIS_FILE, line => __LINE__});
my $count = @{$results};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
results => $results,
count => $count,
}});
foreach my $row (@{$results})
{
my $host_name = $row->[0];
my $scan_hardware_ram_total = $row->[1];
my $scan_hardware_memory_free = $row->[2];
my $scan_hardware_swap_total = $row->[3];
my $scan_hardware_swap_free = $row->[4];
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
host_name => $host_name,
scan_hardware_ram_total => $anvil->Convert->add_commas({number => $scan_hardware_ram_total})." (".$anvil->Convert->bytes_to_human_readable({'bytes' => $scan_hardware_ram_total}).")",
scan_hardware_memory_free => $anvil->Convert->add_commas({number => $scan_hardware_memory_free})." (".$anvil->Convert->bytes_to_human_readable({'bytes' => $scan_hardware_memory_free}).")",
scan_hardware_swap_total => $anvil->Convert->add_commas({number => $scan_hardware_swap_total})." (".$anvil->Convert->bytes_to_human_readable({'bytes' => $scan_hardware_swap_total}).")",
scan_hardware_swap_free => $anvil->Convert->add_commas({number => $scan_hardware_swap_free})." (".$anvil->Convert->bytes_to_human_readable({'bytes' => $scan_hardware_swap_free}).")",
}});
# Important: ensure all size values are integers, which will be auto-transformed to JSON number type.
if (not $hash->{total})
{
$hash->{total} = int($scan_hardware_ram_total);
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 'hash->total' => $hash->{total} }});
}
elsif ($scan_hardware_ram_total < $hash->{total})
{
$hash->{total} = int($scan_hardware_ram_total);
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 'hash->total' => $hash->{total} }});
}
push @{$hash->{hosts}}, {
host_uuid => $host_uuid,
total => int($scan_hardware_ram_total),
free => int($scan_hardware_memory_free),
swap_total => int($scan_hardware_swap_total),
swap_used => int($scan_hardware_swap_free),
};
}
}
# Now get the servers from the Anvil!
my $query = "
SELECT
a.server_uuid,
a.server_name,
b.server_definition_xml
FROM
servers a,
server_definitions b
WHERE
a.server_uuid = b.server_definition_server_uuid
AND
a.server_anvil_uuid = ".$anvil->Database->quote($anvil_uuid)."
;";
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { query => $query }});
my $results = $anvil->Database->query({query => $query, source => $THIS_FILE, line => __LINE__});
my $count = @{$results};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
results => $results,
count => $count,
}});
foreach my $row (@{$results})
{
my $server_uuid = $row->[0];
my $server_name = $row->[1];
my $server_definition_xml = $row->[2];
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
's1:server_name' => $server_name,
's2:server_uuid' => $server_uuid,
's3:server_definition_xml' => $server_definition_xml,
}});
$anvil->Server->parse_definition({
server => $server_name,
source => "from_db",
definition => $server_definition_xml,
});
$hash->{allocated} += $anvil->data->{server}{$target}{$server_name}{from_db}{memory};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
'hash->allocated' => $anvil->Convert->add_commas({number => $hash->{allocated}})." (".$anvil->Convert->bytes_to_human_readable({'bytes' => $hash->{allocated}}).")",
}});
}
}
print JSON->new->utf8->encode($hash)."\n";