#!/usr/bin/perl
# 
# This is the master daemon that manages all periodically run processes on Striker dashboards, Anvil! cluster
# nodes and DR hosts.
#
# Exit codes;
# 0 = Normal exit or md5sum of this program changed and it exited to reload.
# 1 = Not running as root.
# 2 = Unable to connect to any database, even after trying to initialize the local system.
# 
# TODO: 
# - Need to check what kind of machine this is and not prep the database unless its a dashboard.
# - Add a "running: pending,yes,done,dead" and show an appropriate icon beside jobs
# - Decide if holding before the main loop until 'systemctl is-system-running' returns 'running' is a good
#   idea or not.
# - Write the status of this and the scancore daemon to /etc/anvil/anvil.motd and symlink it to /etc/motd.d/
# - Write a script that runs in crontab at UTC 17:00 that sends an email if Scancore or anvil-daemon are disabled.
# - Examine limites in: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#LimitCPU=
# - Write a background program to scan the BCN and uses OUI data to try and find / auto-configure PDUs and UPSes
# - 
# - Increase DRBD's default timeout
# - Check for and enable persistent journald logging
# 
# NOTE:
# - For later; 'reboot --force --force' immediately kills the OS, like disabling ACPI on EL6 and hitting the 
#   power button. Might be useful in ScanCore down the road.
# 

use strict;
use warnings;
use Anvil::Tools;
use Proc::Simple;
#use Time::HiRes qw ( time sleep );
use JSON;
use HTML::Strip;
use HTML::FromText;
use Data::Dumper;
use Text::Diff;

my $THIS_FILE           =  ($0 =~ /^.*\/(.*)$/)[0];
my $running_directory   =  ($0 =~ /^(.*?)\/$THIS_FILE$/)[0];
if (($running_directory =~ /^\./) && ($ENV{PWD}))
{
	$running_directory =~ s/^\./$ENV{PWD}/;
}

# Turn off buffering so that the pinwheel will display while waiting for the SSH call(s) to complete.
$| = 1;

# Prevent a discrepency between UID/GID and EUID/EGID from throwing an error.
$< = $>;
$( = $);

# NOTE: Setting 'log_level' and 'log_secure' here will get overridden in the main lopp. Use the Log methods 
#       in the loop as well to override defaults in code.
my $anvil = Anvil::Tools->new();

# Make sure we're running as 'root'
# $< == real UID, $> == effective UID
if (($< != 0) && ($> != 0))
{
	# Not root
	print $anvil->Words->string({key => "error_0005"})."\n";
	$anvil->nice_exit({exit_code => 1});
}

# If, so some reason, anvil.conf is lost, create it.
$anvil->System->_check_anvil_conf();

# If dnf is running, hold.
$anvil->System->wait_on_dnf();

# Connect to the database(s). If we have no connections, we'll proceed anyway as one of the 'run_once' tasks
# is to setup the database server.
$anvil->Database->connect({
	check_if_configured => 1, 
	check_for_resync    => 2,
});
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0132"});

# If I have no databases, sleep for a second and then exit (systemd will restart us).
if (not $anvil->data->{sys}{database}{connections})
{
	# If this is a dashboard, try to configure and then connect to the local database. If this isn't a 
	# dashboard, then just go into a loop waiting for a database to be configured. 
	if ($anvil->Get->host_type eq "striker")
	{
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0201"});
		prep_database($anvil);
		
		# Try connecting again
		$anvil->Database->connect({check_if_configured => 1, check_for_resync => 2});
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0132"});
		if (not $anvil->data->{sys}{database}{connections})
		{
			# Still nothing, sleep and exit.
			$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, key => "error_0003"});
			$anvil->nice_exit({exit_code => 2});
		}
	}
	else
	{
		# Wait until we have one.
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 0, key => "error_0075"});
		
		until($anvil->data->{sys}{database}{connections})
		{
			sleep 10;
			
			check_network($anvil);
			$anvil->refresh();
			$anvil->Database->connect({check_if_configured => 1, check_for_resync => 2});
			$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 3, key => "log_0132"});
			if (not $anvil->data->{sys}{database}{connections})
			{
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 0, level => 3, key => "log_0439"});
			}
		}
	}
}

# Read switches
$anvil->Get->switches({list => [
	"clear-mapping", 
	"refresh-json", 
	"run-once", 
	"main-loop-only", 
	"no-start", 
	"startup-only"], man => $THIS_FILE});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => $anvil->data->{switches}});
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0115", variables => { program => $THIS_FILE }});

if ($anvil->data->{switches}{'refresh-json'})
{
	$anvil->data->{switches}{'run-once'}       = 1;
	$anvil->data->{switches}{'main-loop-only'} = 1;
	$anvil->data->{switches}{'no-start'}       = 1;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
		"switches::run-once"       => $anvil->data->{switches}{'run-once'}, 
		"switches::main-loop-only" => $anvil->data->{switches}{'main-loop-only'}, 
		"switches::no-start"       => $anvil->data->{switches}{'no-start'}, 
	}});
}

# This is used to track initial checkes / repairs of network issues.
$anvil->data->{sys}{network}{initial_checks} = 0;

# We use this to delay starting jobs for a short time.
our $start_time = time;
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { start_time => $start_time }});

# There are some things we only want to run on (re)start and don't need to always run.
run_once($anvil) if not $anvil->data->{switches}{'main-loop-only'};

# Calculate my sum so that we can exit if it changes later.
$anvil->Storage->record_md5sums;

# What time is it, Mr. Fox?
my $now_time = time;

# To avoid multiple dashboards running a network scan and OUI parse, the dashboard peer with the lowest 
# host_uuid sets it's daily checks to run now, and the other(s) will get a two hour's delay.
my $delay = set_delay($anvil);

# Once a minute, we'll check the md5sums and see if we should restart. 
# Once a day, we'll refresh an Install Target's RPM repository (has no effect on non-Striker dashboards).
$anvil->data->{timing}{minute_checks}         = 60;
$anvil->data->{timing}{ten_minute_checks}     = 600;
$anvil->data->{timing}{daily_checks}          = 86400;
$anvil->data->{timing}{repo_update_interval}  = 86400;
$anvil->data->{timing}{next_minute_check}     = $now_time - 1;
$anvil->data->{timing}{next_ten_minute_check} = $now_time - 1;
$anvil->data->{timing}{next_daily_check}      = ($now_time + $delay) - 1;
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
	"s1:timing::minute_checks"         => $anvil->data->{timing}{minute_checks}, 
	"s2:timing::ten_minute_checks"     => $anvil->data->{timing}{ten_minute_checks}, 
	"s3:timing::daily_checks"          => $anvil->data->{timing}{daily_checks}, 
	"s4:timing::repo_update_interval"  => $anvil->data->{timing}{repo_update_interval}, 
	"s5:now_time"                      => $now_time, 
	"s6:delay"                         => $delay, 
	"s7:timing::next_minute_check"     => $anvil->data->{timing}{next_minute_check}, 
	"s8:timing::next_ten_minute_check" => $anvil->data->{timing}{next_ten_minute_check}, 
	"s9:timing::next_daily_check"      => $anvil->data->{timing}{next_daily_check}, 
}});

# Disconnect. We'll reconnect inside the loop
$anvil->Database->disconnect();
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 3, key => "log_0203"});

# This will prevent restarting while jobs are running.
$anvil->data->{sys}{jobs_running} = 0;

# When we periodically check if system files have changed, we'll also ask Database>connect() to check if it 
# needs to be configured or updated. This is done periodically as it is expensive to run on every loop.
my $check_if_database_is_configured = 0;

# These are the things we always want running.
while(1)
{
	# Reload defaults, re-read the config and then connect to the database(s)
	$anvil->refresh();
	
	# If, so some reason, anvil.conf is lost, create it.
	$anvil->System->_check_anvil_conf();
	
	$anvil->Database->connect({check_if_configured => $check_if_database_is_configured, check_for_resync => 2});
	$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 3, key => "log_0132"});
	
	# Mark that we don't want to check the database now.
	$check_if_database_is_configured = 0;
	
	# If this host is mapping the network, we'll skip a lot of stuff. If set for over an hour, we'll 
	# clear it.
	$anvil->data->{sys}{mapping_network} = check_if_mapping($anvil);
	
	if ($anvil->data->{sys}{database}{connections})
	{
		# Run the normal tasks
		keep_running($anvil);
		
		# Handle periodic tasks
		handle_periodic_tasks($anvil) if not $anvil->data->{sys}{mapping_network};
	}
	else
	{
		# No databases available, we'll update the state file in case this host is having it's 
		# network mapped and the interface used to talk to the databases went down. That's all we 
		# can do though.
		update_state_file($anvil);
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, key => "log_0202"});
	}
	
	# Exit if 'run-once' selected.
	if ($anvil->data->{switches}{'run-once'})
	{
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "alert", key => "message_0055"});
		$anvil->nice_exit({exit_code => 0});
	}
	
	# Check how much RAM we're using.
	check_ram($anvil);
	
	# Disconnect from the database(s) and sleep now.
	$anvil->Database->disconnect();
	sleep(2);
}

$anvil->nice_exit({exit_code => 0});


#############################################################################################################
# Functions                                                                                                 #
#############################################################################################################

# If we're using too much ram, send an alert and exit.
sub check_ram
{
	my ($anvil) = @_;
	
	# Problem 0 == ok, 1 == too much ram used, 2 == no pid found
	my ($problem, $ram_used) = $anvil->System->check_ram_use({program => $THIS_FILE});
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
		problem  => $problem, 
		ram_used => $anvil->Convert->add_commas({number => $ram_used})." (".$anvil->Convert->bytes_to_human_readable({'bytes' => $ram_used}).")", 
	}});
	if ($problem)
	{
		# See if any jobs are running, and if so, hold because those jobs might be doing things (like
		# OS updates or file syncs) that could make anvil-daemon appear to be using more memory.
		$anvil->Database->get_jobs({debug => 2});
		foreach my $job_uuid (keys %{$anvil->data->{jobs}{running}})
		{
			my $job_command  = $anvil->data->{jobs}{running}{$job_uuid}{job_command};
			my $job_progress = $anvil->data->{jobs}{running}{$job_uuid}{job_progress};
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				job_command  => $job_command,
				job_progress => $job_progress, 
			}});
			
			if (($job_progress != 100) && ($job_progress != 0))
			{
				# Don't abort.
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, priority => "alert", key => "warning_0139", variables => { 
					job_command    => $job_command,
					job_progress   => $job_progress, 
					ram_used       => $anvil->Convert->bytes_to_human_readable({'bytes' => $ram_used}),
					ram_used_bytes => $anvil->Convert->add_commas({number => $ram_used}),
				}});
				return(0);
			}
		}
		
		# Send an alert and exit.
		$anvil->Alert->register({alert_level => "notice", message => "error_0357", variables => { 
			program        => $THIS_FILE,
			ram_used       => $anvil->Convert->bytes_to_human_readable({'bytes' => $ram_used}),
			ram_used_bytes => $anvil->Convert->add_commas({number => $ram_used}),
		}, set_by => $THIS_FILE, sort_position => 0});
		$anvil->Email->send_alerts();
		
		# Log the same
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "error_0357", variables => { 
			program        => $THIS_FILE,
			ram_used       => $anvil->Convert->bytes_to_human_readable({'bytes' => $ram_used}),
			ram_used_bytes => $anvil->Convert->add_commas({number => $ram_used}),
		}});
		
		# Exit with RC0 so that systemctl restarts 
		$anvil->nice_exit({exit_code => 0});
	}
	
	return(0);
}

# Check to see if we're mapping the network on this host.
sub check_if_mapping
{
	my ($anvil) = @_;
	
	$anvil->data->{sys}{mapping_network} = 0;
	if ($anvil->data->{sys}{database}{connections})
	{
		my ($map_network_value, $map_network_uuid, $map_network_mtime, $map_network_modified_date) = $anvil->Database->read_variable({
			debug                 => 3,
			variable_name         => "config::map_network",
			variable_source_table => "hosts",
			variable_source_uuid  => $anvil->data->{sys}{host_uuid}, 
		});
		# We'll run for a day (should be cancelled by the program when the user's done, so this 
		# shouldn't fire in practice).
		my $expire_age      = 86400;
		my $map_network_age = 0;
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			's1:map_network_value'         => $map_network_value, 
			's2:map_network_mtime'         => $map_network_mtime, 
			's3:map_network_modified_date' => $map_network_modified_date, 
			's4:map_network_uuid'          => $map_network_uuid, 
		}});
		if ($map_network_uuid)
		{
			$map_network_age = time - $map_network_mtime;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { map_network_age => $map_network_age }});
		}
		if ($map_network_value)
		{
			# How long ago was it set?
			$anvil->data->{switches}{'clear-mapping'} = "" if not defined $anvil->data->{switches}{'clear-mapping'};
			if (($map_network_age >= $expire_age) or ($anvil->data->{switches}{'clear-mapping'}))
			{
				# Clear it.
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0470"});
				$anvil->Database->insert_or_update_variables({
					debug             => 3,
					variable_value    => 0, 
					variable_uuid     => $map_network_uuid, 
					update_value_only => 1, 
				});
			}
			else
			{
				# Mark it so we only track the network.
				my $say_age = $anvil->Convert->add_commas({number => $expire_age});
				my $timeout = $anvil->Convert->add_commas({number => ($expire_age - $map_network_age)});
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0471", variables => { 
					age     => $say_age, 
					timeout => $timeout,
				}});
				
				$anvil->data->{sys}{mapping_network} = 1;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { "sys::mapping_network" => $anvil->data->{sys}{mapping_network} }});
				
				# Close any open ssh connections.
				foreach my $ssh_fh_key (keys %{$anvil->data->{cache}{ssh_fh}})
				{
					my $ssh_fh = $anvil->data->{cache}{ssh_fh}{$ssh_fh_key};
					$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
						ssh_fh_key => $ssh_fh_key,
						ssh_fh     => $ssh_fh, 
					}});
					if ($ssh_fh =~ /^Net::OpenSSH/)
					{
						$ssh_fh->disconnect();
					}
					delete $anvil->data->{cache}{ssh_fh}{$ssh_fh_key};
				}
			}
		}
	}
	
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { "sys::mapping_network" => $anvil->data->{sys}{mapping_network} }});
	return($anvil->data->{sys}{mapping_network});
}

# This decides if the local system will delay daily runs on start-up.
sub set_delay
{
	my ($anvil) = @_;
	
	my $delay     = 7200;
	my $host_type = $anvil->Get->host_type();
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { host_type => $host_type }});
	if ($host_type eq "striker")
	{
		foreach my $uuid (sort {$a cmp $b} keys %{$anvil->data->{database}})
		{
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				"sys::host_uuid" => $anvil->data->{sys}{host_uuid}, 
				uuid             => $uuid, 
			}});
			if ($uuid eq $anvil->data->{sys}{host_uuid})
			{
				$delay = 0;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { delay => $delay }});
			}
			last;
		}
	}
	else
	{
		# Not a dashboard, don't delay
		$delay = 0;
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { delay => $delay }});
	}
	
	return($delay);
}

# This checks to see if it's time to see if the network is ok and, if the system has been up long enough, 
# checks and tries to repair network issues.
sub check_network
{
	my ($anvil) = @_;
	
	# The network sometimes doesn't come up, but we don't want to try recovering it too soon. As such, 
	# we'll start watching the network after the uptime is 2 minutes.
	my $uptime = $anvil->Get->uptime;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { uptime => $uptime }});
	if ($uptime > 120)
	{
		# Check that bonds are up. Degraded bonds will be left alone.
		if (not $anvil->data->{sys}{network}{initial_checks})
		{
			my $running = $anvil->System->check_daemon({daemon => "NetworkManager"});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { running => $running }});
			
			if (not $running)
			{
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "message_0250", variables => { daemon => "NetworkManager" }});
				my $return_code = $anvil->System->start_daemon({daemon => "NetworkManager"});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { return_code => $return_code }});
			}
			
			#$anvil->Network->check_network({heal => "all"});
			
			$anvil->data->{sys}{network}{initial_checks} = 1;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
				"sys::network::initial_checks" => $anvil->data->{sys}{network}{initial_checks},
			}});
		}
		else
		{
			### NOTE: This is constantly trying to "fix" healthy bonds, without a know way to
			###       trigger to debug. As such, disabling for now.
			#$anvil->Network->check_network({heal => "down_only"});
		}
		
		check_firewall($anvil);
	}
	
	# Check that all users can ping.
	if (1)
	{
		my $shell_call = $anvil->data->{path}{exe}{sysctl}." net.ipv4.ping_group_range";
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { shell_call => $shell_call }});
		
		my ($output, $return_code) = $anvil->System->call({shell_call => $shell_call, source => $THIS_FILE, line => __LINE__});
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { output => $output }});
		
		if ($output =~ /net.ipv4.ping_group_range = (\d+)\t(\d+)$/)
		{
			my $lowest_uid  = $1;
			my $highest_uid = $2;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				lowest_uid  => $lowest_uid,
				highest_uid => $highest_uid, 
			}});
			
			if ($highest_uid < 2000)
			{
				# Tell the user we're enabling ping for all users.
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0683"});
				
				my $shell_call = $anvil->data->{path}{exe}{sysctl}." -w net.ipv4.ping_group_range=\"0	2147483647\"";
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 1, list => { shell_call => $shell_call }});
				
				my ($output, $return_code) = $anvil->System->call({shell_call => $shell_call, source => $THIS_FILE, line => __LINE__});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 1, list => { output => $output }});
				
			}
		}
	}
	
	return(0);
}

# This handles running tasks that only run on some loops.
sub handle_periodic_tasks
{
	my ($anvil) = @_;
	
	my $now_time  = time;
	my $host_type = $anvil->Get->host_type();
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
		"s1:now_time"                      => $now_time, 
		"s2:timing::next_minute_check"     => $anvil->data->{timing}{next_minute_check}, 
		"s3:timing::next_ten_minute_check" => $anvil->data->{timing}{next_ten_minute_check}, 
		"s4:timing::next_daily_check"      => $anvil->data->{timing}{next_daily_check},
		"s5:host_type"                     => $host_type,
	}});
	
	# Time to run once per minute tasks.
	if ($now_time >= $anvil->data->{timing}{next_minute_check})
	{
		# Check the firewall needs to be updated.
		check_network($anvil);
		
		# Check to see if the PXE environment needs to be updated.
		check_install_target($anvil);
		
		# Check that the users we care about have ssh public keys and they're recorded in ssh_keys.
		$anvil->System->check_ssh_keys({debug => 2});
		
		$anvil->System->update_hosts({debug => 3});
		
		# Check if the files on disk have changed. Even if it is time to check, don't if a job is 
		# running.
		if ((not $anvil->data->{timing}{jobs_running}) && ($anvil->Storage->check_md5sums))
		{
			# NOTE: We exit with '0' to prevent systemctl from showing a scary red message.
			$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "alert", key => "message_0014"});
			$anvil->nice_exit({exit_code => 0});
		}
		
		# Mark that we want to check the database config next time.
		$check_if_database_is_configured = 1;
		
		# Update the next check time.
		$anvil->data->{timing}{next_minute_check} = $now_time + $anvil->data->{timing}{minute_checks};
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
			"s1:timing::minute_checks"     => $anvil->data->{timing}{minute_checks},
			"s2:timing::next_minute_check" => $anvil->data->{timing}{next_minute_check}, 
		}});
		
		# Even when this runs, it should finish in under ten seconds so we don't need to background it.
		my $shell_call = $anvil->data->{path}{exe}{'anvil-parse-fence-agents'}.$anvil->Log->switches;
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { shell_call => $shell_call }});
		my ($parse_output, $return_code) = $anvil->System->call({shell_call => $shell_call, source => $THIS_FILE, line => __LINE__});
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			parse_output => $parse_output,
			return_code  => $return_code, 
		}});
		
		# Scan the local network.
		update_state_file($anvil);
		
		# Check shared files.
		check_files($anvil);
		
		# Check mail server config.
		my $problem = $anvil->Email->check_config({debug => 3});
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { problem => $problem }});
		
		# Check if anything is needed to be done in /mnt/shared.
		check_incoming($anvil);

		# Check for stale db_in_use states.
		check_db_in_use_states($anvil);
		
		# Do Striker-specific minute tasks
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { host_type => $host_type }});
		if ($host_type eq "striker")
		{
			# Look for duplicates if we're the primary DB.
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				"sys::database::primary_db" => $anvil->data->{sys}{database}{primary_db},
				"Get->host_uuid"            => $anvil->Get->host_uuid, 
			}});
			if ($anvil->Get->host_uuid eq $anvil->data->{sys}{database}{primary_db})
			{
				$anvil->Database->_check_for_duplicates({debug => 2});
			}
			
			# Something is causing broken manifests to be created. Until found, this removes them.
			check_for_broken_manifests($anvil);
			
			# This can take a while, but it's been optimized to minimize how long it takes to 
			# run. To be safe, we'll still background it.
			my $shell_call = $anvil->data->{path}{exe}{'striker-get-screenshots'}.$anvil->Log->switches;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { shell_call => $shell_call }});
			
			my ($output, $return_code) = $anvil->System->call({
				background => 1,
				shell_call => $shell_call, 
			});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				output      => $output,
				return_code => $return_code, 
			}});
		}
	}
	
	# Now check to see if it's time to run less frequent tasks.
	if ($now_time >= $anvil->data->{timing}{next_ten_minute_check})
	{
		my $host_type = $anvil->Get->host_type();
		my $host_uuid = $anvil->Get->host_uuid();
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			host_type => $host_type, 
			host_uuid => $host_uuid, 
		}});
		
		# Are we a Striker and is there two or more connections? If so, evaluate if we should shut 
		# down our database.
		if ($host_type eq "striker")
		{
			# If we're the active database, dump our database out and rsync it to our peers.
			my $peers       = keys %{$anvil->data->{database}};
			my $connections = $anvil->data->{sys}{database}{connections}; 
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				peers       => $peers,
				connections => $connections, 
			}});
			if (exists $anvil->data->{cache}{database_handle}{$host_uuid})
			{
				# Verify that the database is up.
				my $running = $anvil->System->check_daemon({daemon => $anvil->data->{sys}{daemon}{postgresql}});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { running => $running }});
				if ($running)
				{
					# Backup our DB.
					my $dump_file = $anvil->Database->backup_database({debug => 2});
					$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { dump_file => $dump_file }});
					
					# Now rsync it to our peer(s)
					foreach my $this_host_uuid (sort {$a cmp $b} keys %{$anvil->data->{database}})
					{
						next if $this_host_uuid eq $host_uuid;
						
						my $destination = "root\@".$anvil->data->{database}{$this_host_uuid}{host}.":".$anvil->data->{path}{directories}{pgsql}."/";
						my $password    = $anvil->data->{database}{$this_host_uuid}{password};
						$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
							this_host_uuid => $this_host_uuid, 
							destination    => $destination,
							password       => $anvil->Log->is_secure($password), 
						}});
						
						my $start_time = time;
						my $failed = $anvil->Storage->rsync({
							debug       => 3, 
							destination => $destination,
							password    => $password, 
							source      => $dump_file,
						});
						$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { failed => $failed }});
						
						my $rsync_time  = time - $start_time;
						my $size        = $anvil->Convert->bytes_to_human_readable({'bytes' => $anvil->data->{file_stat}{$dump_file}{size}}); 
						my $size_bytes  = $anvil->Convert->add_commas({number => $anvil->data->{file_stat}{$dump_file}{size}}); 
						my $target_name = $anvil->Get->host_name_from_uuid({debug => 3, host_uuid => $this_host_uuid});
						$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0658", variables => { 
							file       => $dump_file, 
							host_name  => $target_name, 
							took       => $rsync_time, 
							size       => $size,
							size_bytes => $size_bytes, 
						}});
					}
				}
			}
		}
		
		# Reap old db_in_use states over 6 hours old.
		my $query = "DELETE FROM states WHERE state_name LIKE 'db_in_use%' AND modified_date < (SELECT now() - interval '6 hour');\n";
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0124", variables => { query => $query }});
		$anvil->Database->write({debug => 2, query => $query, source => $THIS_FILE, line => __LINE__});
		
		# Update the next check time.
		$anvil->data->{timing}{next_ten_minute_check} = $now_time + $anvil->data->{timing}{ten_minute_checks};
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			"s1:timing::ten_minute_checks"     => $anvil->data->{timing}{ten_minute_checks},
			"s2:timing::next_ten_minute_check" => $anvil->data->{timing}{next_ten_minute_check}, 
		}});
	}
	
	# Now check to see if it's time to run daily tasks.
	if ($now_time >= $anvil->data->{timing}{next_daily_check})
	{
		# Make sure ksm, ksmtuned and tuned are disabled.
		foreach my $daemon ("ksm.service", "ksmtuned.service", "tuned.service")
		{
			my $status = $anvil->System->check_daemon({daemon => $daemon});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				daemon => $daemon,
				status => $status, 
			}});
			if ($status eq "1")
			{
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 1, level => 1, priority => "alert", key => "warning_0145", variables => { daemon => $daemon }});
				$anvil->System->disable_daemon({
					now    => 1,
					daemon => $daemon,
				});
			}
		}
		
		### NOTE: We call it once/day, but this will also trigger on restart of anvil-daemon. As such, we
		###       don't use '--force' and let striker-manage-install-target skip the repo update if it happened
		###       recently enough.
		if ($host_type eq "striker")
		{
			### TODO: This is here only to handle the period of time where we disabled postgres 
			###       on boot. This should be removed sometime after 2022-08-01
			#$anvil->System->enable_daemon({daemon => $anvil->data->{sys}{daemon}{postgresql}});
			
			# Record a job, don't call it directly. It takes too long to run.
			my $host_uuid                    = $anvil->Get->host_uuid();
			my ($last_age_out, undef, undef) = $anvil->Database->read_variable({variable_name => "database::".$host_uuid."::aged-out"});
			my $time_since_last_age_out      = $last_age_out =~ /^\d+$/ ? time - $last_age_out : 100000;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				's1:host_uuid'               => $host_uuid, 
				's2:last_age_out'            => $last_age_out,
				's3:time_since_last_age_out' => $time_since_last_age_out, 
			}});
			
			# Run an age-out?
			if ($time_since_last_age_out > 86400)
			{
				# Age out old data. This takes up to a minute. 
				my $variable_uuid = $anvil->Database->insert_or_update_variables({
					variable_name         => "database::".$host_uuid."::aged-out",
					variable_value        => time,
					variable_default      => "0", 
					variable_description  => "striker_0302", 
					variable_section      => "database", 
					variable_source_uuid  => "NULL", 
					variable_source_table => "", 
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { variable_uuid => $variable_uuid }});
				$anvil->Database->_age_out_data();
			}
			
			# Run an archive?
			my ($last_archive, undef, undef) = $anvil->Database->read_variable({variable_name => "database::".$host_uuid."::archived"});
			my $time_since_last_archive      = $last_archive =~ /^\d+$/ ? time - $last_archive : 100000;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				's1:last_archive'            => $last_archive, 
				's2:time_since_last_archive' => $time_since_last_archive,
			}});
			if ($time_since_last_archive > 86400)
			{
				# Archive old data
				my $variable_uuid = $anvil->Database->insert_or_update_variables({
					variable_name         => "database::".$host_uuid."::archived",
					variable_value        => time,
					variable_default      => "0", 
					variable_description  => "striker_0303", 
					variable_section      => "database", 
					variable_source_uuid  => "NULL", 
					variable_source_table => "", 
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { variable_uuid => $variable_uuid }});
				$anvil->Database->archive_database();
			}
			
			# Run the install target update?
			my ($last_mit, undef, undef) = $anvil->Database->read_variable({variable_name => "jobs::last-ran::".$host_uuid."::manage-install-target"});
			my $time_since_last_mit      = $last_mit =~ /^\d+$/ ? time - $last_mit : 100000;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				's1:last_mit'            => $last_mit,
				's2:time_since_last_mit' => $time_since_last_mit, 
			}});
			if ($time_since_last_mit > 86400)
			{
				# Update the local install target data.
				my $variable_uuid = $anvil->Database->insert_or_update_variables({
					variable_name         => "jobs::last-ran::".$host_uuid."::manage-install-target",
					variable_value        => time,
					variable_default      => "0", 
					variable_description  => "striker_0304", 
					variable_section      => "jobs", 
					variable_source_uuid  => "NULL", 
					variable_source_table => "", 
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { variable_uuid => $variable_uuid }});
				my ($job_uuid) = $anvil->Database->insert_or_update_jobs({
					file            => $THIS_FILE, 
					line            => __LINE__, 
					job_command     => $anvil->data->{path}{exe}{'striker-manage-install-target'}." --refresh".$anvil->Log->switches, 
					job_data        => "", 
					job_name        => "install-target::refresh", 
					job_title       => "job_0015", 
					job_description => "job_0017", 
					job_progress    => 0,
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 1, list => { job_uuid => $job_uuid }});
			}
			
			# Update the OUI data?
			my ($last_parse_oui, undef, undef) = $anvil->Database->read_variable({variable_name => "jobs::last-ran::striker-parse-oui"});
			my $time_since_last_parse_oui      = $last_parse_oui =~ /^\d+$/ ? time - $last_parse_oui : 100000;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				's1:last_parse_oui'            => $last_parse_oui, 
				's2:time_since_last_parse_oui' => $time_since_last_parse_oui, 
			}});
			if ($time_since_last_parse_oui > 86400)
			{
				# Yup.
				my $variable_uuid = $anvil->Database->insert_or_update_variables({
					variable_name         => "jobs::last-ran::striker-parse-oui",
					variable_value        => time,
					variable_default      => "0", 
					variable_description  => "striker_0305", 
					variable_section      => "jobs", 
					variable_source_uuid  => "NULL", 
					variable_source_table => "", 
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { variable_uuid => $variable_uuid }});
				my ($job_uuid) = $anvil->Database->insert_or_update_jobs({
					file            => $THIS_FILE, 
					line            => __LINE__, 
					job_command     => $anvil->data->{path}{exe}{'striker-parse-oui'}.$anvil->Log->switches, 
					job_data        => "", 
					job_name        => "oui-data::refresh", 
					job_title       => "job_0064", 
					job_description => "job_0065", 
					job_progress    => 0,
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { job_uuid => $job_uuid }});
			}
			
			# Scan the network?
			my ($last_network_scan, undef, undef) = $anvil->Database->read_variable({variable_name => "jobs::last-ran::striker-scan-network"});
			my $time_since_last_network_scan      = $last_network_scan =~ /^\d+$/ ? time - $last_network_scan : 100000;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				's1:last_network_scan'            => $last_network_scan,
				's2:time_since_last_network_scan' => $time_since_last_network_scan, 
			}});
			if ($time_since_last_parse_oui > 86400)
			{
				# Yup.
				my $variable_uuid = $anvil->Database->insert_or_update_variables({
					variable_name         => "jobs::last-ran::striker-scan-network",
					variable_value        => time,
					variable_default      => "0", 
					variable_description  => "striker_0306", 
					variable_section      => "jobs", 
					variable_source_uuid  => "NULL", 
					variable_source_table => "", 
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { variable_uuid => $variable_uuid }});
				my ($job_uuid) = $anvil->Database->insert_or_update_jobs({
					file            => $THIS_FILE, 
					line            => __LINE__, 
					job_command     => $anvil->data->{path}{exe}{'striker-scan-network'}.$anvil->Log->switches, 
					job_data        => "", 
					job_name        => "scan-network::refresh", 
					job_title       => "job_0066", 
					job_description => "job_0067", 
					job_progress    => 0,
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { job_uuid => $job_uuid }});
			}
		}
		
		# Update the next check time.
		$anvil->data->{timing}{next_daily_check} = $now_time + $anvil->data->{timing}{daily_checks};
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			"s1:timing::daily_checks"     => $anvil->data->{timing}{daily_checks},
			"s2:timing::next_daily_check" => $anvil->data->{timing}{next_daily_check}, 
		}});
	}
	
	return(0);
}

### TODO: Find the source of the problem and fix it properly.
sub check_for_broken_manifests
{
	my ($anvil) = @_;
	
	my $query =  "
SELECT 
    manifest_uuid 
FROM 
    manifests 
WHERE 
    manifest_name = '-anvil-'
;";
	$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0124", variables => { 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   => $count, 
	}});
	if ($count)
	{
		foreach my $row (@{$results})
		{
			my $manifest_uuid = $row->[0];
			
			my $queries = [];
			push @{$queries}, "DELETE FROM history.manifests WHERE manifest_uuid = ".$anvil->Database->quote($manifest_uuid).";";
			push @{$queries}, "DELETE FROM manifests WHERE manifest_uuid = ".$anvil->Database->quote($manifest_uuid).";";
			
			foreach my $query (sort {$a cmp $b} @{$queries})
			{
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0124", variables => { query => $query }});
			}
			$anvil->Database->write({debug => 2, query => $queries, source => $THIS_FILE, line => __LINE__});
		}
	}
	
	return(0);
}

### NOTE: This logic plays out in a slightly different way in Database->shutdown().
# Check for stale db_in_use states.
sub check_db_in_use_states
{
	my ($anvil) = @_;
	
	# We only reap db_in_use entries for us.
	$anvil->System->pids({debug => 2});
	my $query =  "
SELECT 
    state_uuid, 
    state_name, 
    state_note 
FROM 
    states 
WHERE 
    state_name LIKE 'db_in_use::%'
AND 
    state_host_uuid = ".$anvil->Database->quote($anvil->Get->host_uuid)."
;";
	$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0124", variables => { 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   => $count, 
	}});
	if ($count)
	{
		foreach my $row (@{$results})
		{
			my $state_uuid = $row->[0];
			my $state_name = $row->[1];
			my $state_note = $row->[2];
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				's1:state_uuid' => $state_uuid, 
				's2:state_name' => $state_name, 
				's3:state_note' => $state_note, 
			}});
			
			my $caller                = "";
			my ($db_uuid, $state_pid) = ($state_name =~ /db_in_use::(.*?)::(.*)$/);
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				's1:db_uuid'   => $anvil->Get->host_name_from_uuid({host_uuid => $db_uuid})." (".$db_uuid.")", 
				's2:state_pid' => $state_pid, 
			}});
			if ($state_pid =~ /(\d+)::(.*)$/)
			{
				$state_pid = $1;
				$caller    = $2;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
					's1:state_pid' => $state_pid, 
					's2:caller'    => $caller,
				}});
			}
			
			if (not exists $anvil->data->{pids}{$state_pid})
			{
				# Reap the 'db_is_use'.
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 1, list => { state_name => $state_name }});
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, priority => "alert", key => "warning_0140", variables => { 
					db       => $anvil->Get->host_name_from_uuid({host_uuid => $db_uuid})." (".$db_uuid.")",
					pid      => $state_pid,
					'caller' => $caller, 
				}});
				
				my $query = "DELETE FROM states WHERE state_uuid = ".$anvil->Database->quote($state_uuid).";";
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0124", variables => { query => $query }});
				$anvil->Database->write({debug => 2, query => $query, source => $THIS_FILE, line => __LINE__});
			}
		}
	}
	
	return(0);
}

# This checks to see if any files in /mnt/shared need to be dealt with, like incorporating files in 
# /mnt/shared/incoming, etc.
sub check_incoming
{
	my ($anvil) = @_;
	
	my $shell_call = $anvil->data->{path}{exe}{'anvil-manage-files'}." --check".$anvil->Log->switches;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { shell_call => $shell_call }});
	my ($output, $return_code) = $anvil->System->call({
		shell_call => $shell_call, 
		source     => $THIS_FILE, 
		line       => __LINE__,
	});
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
		output      => $output, 
		return_code => $return_code,
	}});
	
	return(0);
}

# This calls striker-manage-install-target to see if the dhcpd is running or not. If it is or isn't, the config
# variable 'install-target::enabled' is set/updated. On non-Striker hosts, this simply returns without doing 
# anything.
sub check_install_target
{
	my ($anvil) = @_;
	
	my $system_type = $anvil->Get->host_type();
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { system_type => $system_type }});
	if ($system_type ne "striker")
	{
		# Not a dashboard, nothing to do.
		return(0);
	}
	
	my $status                 = "unavailable";
	my ($output, $return_code) = $anvil->System->call({shell_call => $anvil->data->{path}{exe}{'striker-manage-install-target'}." --status --check --no-refresh".$anvil->Log->switches});
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { output => $output }});
	foreach my $line (split/\n/, $output)
	{
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { line => $line }});
		
		if ($line =~ /status=(\d)/)
		{
			my $digit = $1;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { digit => $digit }});
			
			if ($digit == 0)
			{
				$status = "disabled";
			}
			elsif ($digit == 1)
			{
				$status = "enabled";
			}
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { status => $status }});
			last;
		}
	}
	
	# Record the status
	$anvil->Database->insert_or_update_variables({
		variable_name         => "install-target::enabled", 
		variable_source_uuid  => $anvil->Get->host_uuid, 
		variable_source_table => "hosts", 
		variable_value        => $status, 
		variable_default      => "unavailable", 
		variable_description  => "striker_0110", 
		variable_section      => "system", 
	});
	
	return(0);
}

# These are tools that don't need to constantly run. They'll typically run when the server starts up or the
# daemon is restarted or reloaded.
sub run_once
{
	my ($anvil) = @_;
	
	# Make sure the firewall is configured.
	$anvil->Network->manage_firewall();
	
	# Check that the database is ready.
	prep_database($anvil);
	
	# Check to see if we need to do boot-time tasks. We only run these if we've just booted
	boot_time_tasks($anvil);
	
	# Check the ssh stuff. 
	# NOTE: This actually runs again in the minutes tasks, but needs to run on boot as well.
	$anvil->System->check_ssh_keys();
	
	# Check setuid wrappers
	check_setuid_wrappers($anvil);
	
	# Check journald is configured for persistent storage.
	check_journald($anvil);
	
	if ($anvil->data->{switches}{'startup-only'})
	{
		$anvil->nice_exit({exit_code => 0});
	}
	
	return(0);
}

sub check_journald
{
	my ($anvil) = @_;
	
	# Check the journald.conf to ensure logging in configured to be persistent.
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 'path::configs::journald.conf' => $anvil->data->{path}{configs}{'journald.conf'} }});
	my $peristent_seen    = 0;
	my $change_storage    = 0;
	my $old_journald_conf = $anvil->Storage->read_file({file => $anvil->data->{path}{configs}{'journald.conf'}});
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { old_journald_conf => $old_journald_conf }});
	foreach my $line (split/\n/, $old_journald_conf)
	{
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { line => $line }});
		if ($line =~ /^Storage=(.*)$/)
		{
			my $value = $1;
			if ($value eq "persistent")
			{
				$peristent_seen = 1;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { peristent_seen => $peristent_seen }});
			}
			else
			{
				$change_storage = 1;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { change_storage => $change_storage }});
			}
		}
	}
	
	# Make sure the journald directory 
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 'path::directories::journald' => $anvil->data->{path}{directories}{journald} }});
	if (not -d $anvil->data->{path}{directories}{journald})
	{
		$anvil->Storage->make_directory({
			debug     => 2,
			directory => $anvil->data->{path}{directories}{journald},
		});
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "message_0248", variables => { directory => $anvil->data->{path}{directories}{journald} }});
	}
	
	# Make sure the journald is configured for persistent storage.
	if (not $peristent_seen)
	{
		my $storage_added     = 0;
		my $new_journald_conf = "";
		foreach my $line (split/\n/, $old_journald_conf)
		{
			if (($line =~ /^Storage=/) && ($change_storage))
			{
				if (not $storage_added)
				{
					$storage_added     =  1;
					$new_journald_conf .= "Storage=persistent\n";
				}
				next;
			}
			if (($line =~ /^#Storage=/) && (not $storage_added))
			{
				$storage_added     =  1;
				$new_journald_conf .= "Storage=persistent\n";
			}
			$new_journald_conf .= $line."\n";
		}
		if (not $storage_added)
		{
			$new_journald_conf .= "Storage=persistent\n";
		}
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { new_journald_conf => $new_journald_conf }});
		
		$anvil->Storage->write_file({
			debug     => 3,
			secure    => 0, 
			file      => $anvil->data->{path}{configs}{'journald.conf'}, 
			body      => $new_journald_conf, 
			mode      => "0644",
			overwrite => 1,
		});
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "message_0013", variables => { file => $anvil->data->{path}{configs}{'journald.conf'} }});
		
		# Restart the journald service.
		my $shell_call = $anvil->data->{path}{exe}{systemctl}." restart systemd-journald.service";
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { shell_call => $shell_call }});
		my ($output, $return_code) = $anvil->System->call({debug => 3, shell_call => $shell_call, source => $THIS_FILE, line => __LINE__});
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			output      => $output, 
			return_code => $return_code,
		}});
	}
	
	return(0);
}

# This creates, as needed, the setuid wrappers used by apache to make certain system calls.
sub check_setuid_wrappers
{
	my ($anvil) = @_;
	
	my $host_type = $anvil->Get->host_type();
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { host_type => $host_type }});
	if ($host_type ne "striker")
	{
		# Not a dashboard, setuid scripts aren't needed.
		return(0);
	}
	
	# Does the call_striker-get-peer-data wrapper exist yet?
	if (-e $anvil->data->{path}{exe}{'call_striker-get-peer-data'})
	{
		# Exists, skipping.
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 3, key => "log_0436", variables => { wrapper => $anvil->data->{path}{exe}{'call_striker-get-peer-data'} }});
	}
	else
	{
		# What is the admin user and group ID?
		my $admin_uid = getpwnam('admin');
		my $admin_gid = getgrnam('admin');
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
			admin_uid => $admin_uid,
			admin_gid => $admin_gid, 
		}});
		next if not $admin_uid;
		next if not $admin_gid;
		
		# Write the body out
		my $call_striker_get_peer_data_body =  "#define REAL_PATH \"".$anvil->data->{path}{exe}{'striker-get-peer-data'}."\"\n";
		   $call_striker_get_peer_data_body .= "main(ac, av)\n";
		   $call_striker_get_peer_data_body .= "char **av;\n";
		   $call_striker_get_peer_data_body .= "{\n";
		   $call_striker_get_peer_data_body .= "        setuid(".$admin_uid.");\n";
		   $call_striker_get_peer_data_body .= "        setgid(".$admin_gid.");\n";
		   $call_striker_get_peer_data_body .= "        execv(REAL_PATH, av);\n";
		   $call_striker_get_peer_data_body .= "}\n";
		my $error = $anvil->Storage->write_file({
			debug     => 3,
			file      => $anvil->data->{path}{exe}{'call_striker-get-peer-data'}.".c",
			body      => $call_striker_get_peer_data_body, 
			mode      => '644', 
			overwrite => 1,
		});
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { error => $error }});
		
		# If it wrote out, compile it.
		if (not -e $anvil->data->{path}{exe}{'call_striker-get-peer-data'}.".c")
		{
			# Failed to write.
			$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, priority => "alert", key => "error_0071", variables => { file => $anvil->data->{path}{exe}{'call_striker-get-peer-data'}.".c" }});
		}
		else
		{
			# Compile it
			my ($output, $return_code) = $anvil->System->call({
				debug      => 3,
				shell_call => $anvil->data->{path}{exe}{gcc}." -o ".$anvil->data->{path}{exe}{'call_striker-get-peer-data'}." ".$anvil->data->{path}{exe}{'call_striker-get-peer-data'}.".c", 
			});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
				output      => $output, 
				return_code => $return_code,
			}});
			
			# If it compiled, setuid it.
			if (not -e $anvil->data->{path}{exe}{'call_striker-get-peer-data'})
			{
				# Something went wrong compiling it.
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, priority => "alert", key => "error_0072", variables => { file => $anvil->data->{path}{exe}{'call_striker-get-peer-data'}.".c" }});
			}
			else
			{
				$anvil->Storage->change_owner({
					debug => 3, 
					path  => $anvil->data->{path}{exe}{'call_striker-get-peer-data'}, 
					user  => 'root', 
					group => 'root',
				});
				$anvil->Storage->change_mode({
					debug => 3, 
					path => $anvil->data->{path}{exe}{'call_striker-get-peer-data'},
					mode => '4755',
				});
			}
		}
	}
	
	return(0);
}

# Configure/update the firewall.
sub check_firewall
{
	my ($anvil) = @_;
	
	return(0);
	
	# Don't call this if we're not configured yet.
	my $configured = $anvil->System->check_if_configured({debug => 3});
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { configured => $configured }});
	
	# Check the firewall needs to be updated.
	if ($configured)
	{
		my ($output, $return_code) = $anvil->System->call({shell_call => $anvil->data->{path}{exe}{'anvil-manage-firewall'}.$anvil->Log->switches});
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { output => $output, return_code => $return_code }});
	}
	
	return(0);
}

# This handles tasks that need to run on boot (if any)
sub boot_time_tasks
{
	my ($anvil) = @_;
	
	# If the uptime is less than ten minutes, clear the reboot flag.
	my $uptime = $anvil->Get->uptime;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { uptime => $uptime }});
	
	# Now find out if a reboot is listed as needed and when it was last changed.
	my $reboot_needed       = 0;
	my $changed_seconds_ago = 0;
	my $query               = "
SELECT 
    variable_value, 
    (SELECT extract(epoch from now()) - extract(epoch from modified_date)) AS changed_seconds_ago 
FROM 
    variables 
WHERE 
    variable_source_table = 'hosts' 
AND 
    variable_source_uuid  = ".$anvil->Database->quote($anvil->Get->host_uuid)." 
AND 
    variable_name         = 'reboot::needed'
;";
	$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0124", variables => { 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   => $count, 
	}});
	if ($count)
	{
		$reboot_needed       =  $results->[0]->[0];
		$changed_seconds_ago =  $results->[0]->[1];
		$changed_seconds_ago =~ s/^(\d+)\..*$/$1/;
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			reboot_needed       => $reboot_needed,
			changed_seconds_ago => $changed_seconds_ago, 
		}});
	}
	
	### TODO: This shouldn't be needed anymore. anvil-manage-power doesn't set the progress to '50' prior
	###       to reboot anymore.
	# If a reboot is needed, see if the uptime is less than the time since the reboot needed flag was 
	# set. If the uptime is less, then the system rebooted since it was requested so clear it. h/t to
	# Lisa Seelye (@thedoh) for this idea!
	my $difference = ($changed_seconds_ago - $uptime);
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
		"s1:reboot_needed"       => $reboot_needed,
		"s2:changed_seconds_ago" => $changed_seconds_ago, 
		"s3:uptime"              => $uptime,
		"s4:difference"          => $difference,
	}});
	if ($reboot_needed)
	{
		if ($uptime < $changed_seconds_ago)
		{
			# Clear the reboot request.
			$reboot_needed = $anvil->System->reboot_needed({debug => 2, set => 0});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { reboot_needed => $reboot_needed }});
			
			# Check to see if there was a reboot job in progress. If so, finish it off.
			my $job_uuid = $anvil->Job->get_job_uuid({
				debug      => 2, 
				program    => "anvil-manage-power",
				incomplete => 1,
			});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { job_uuid => $job_uuid }});
			
			if ($job_uuid)
			{
				# Update the percentage to '100' and then clear the old PID.
				my $date_time = $anvil->Get->date_and_time();
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { date_time => $date_time }});
				
				$anvil->Job->update_progress({
					progress     => 100, 
					message      => "message_0064,!!date_and_time!".$date_time."!!", 
					job_uuid     => $job_uuid,
					picked_up_by => 0,
				});
			}
		}
	}
	else
	{
		# Update our status 
		$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, 'print' => 0, level => 2, key => "log_0572"});
		
		$anvil->Database->get_hosts({debug => 2});
		my $host_uuid = $anvil->Get->host_uuid({debug => 2});
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { host_uuid => $host_uuid }});
		$anvil->Database->insert_or_update_hosts({
			debug       => 2,
			host_ipmi   => $anvil->data->{hosts}{host_uuid}{$host_uuid}{host_ipmi}, 
			host_key    => $anvil->data->{hosts}{host_uuid}{$host_uuid}{host_key}, 
			host_name   => $anvil->data->{hosts}{host_uuid}{$host_uuid}{host_name}, 
			host_type   => $anvil->data->{hosts}{host_uuid}{$host_uuid}{host_type}, 
			host_uuid   => $host_uuid, 
			host_status => "online", 
		});
		
		# Make sure our stop reason is cleared.
		my $variable_uuid = $anvil->Database->insert_or_update_variables({
			variable_name         => 'system::stop_reason', 
			variable_value        => '', 
			variable_default      => '', 
			variable_description  => 'striker_0279', 
			variable_section      => 'system', 
			variable_source_uuid  => $host_uuid, 
			variable_source_table => 'hosts', 
		});
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { variable_uuid => $variable_uuid }});
	}
	
	# Make sure /etc/hosts is updated.
	$anvil->System->update_hosts();
	
	# This handles weird bits for things like bug work-arounds.
	handle_special_cases($anvil);
	
	# Now look for jobs that have a job status of 'anvil_startup'
	run_jobs($anvil, 1);
	
	# Check the firewall needs to be updated.
	check_firewall($anvil);
	
	# If we're a striker, check apache
	my $host_type = $anvil->Get->host_type;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { host_type => $host_type }});
	if ($host_type eq "striker")
	{
		$anvil->Striker->check_httpd_conf({debug => 3});
	}
	
	return(0);
}

# This handles weird bits for things like bug work-arounds.
sub handle_special_cases
{
	my ($anvil) = @_;
	
	# Thsi is now handled by 'anvil-version-changes'
	my $shell_call = $anvil->data->{path}{exe}{'anvil-version-changes'}.$anvil->Log->switches;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { shell_call => $shell_call }});
	
	my ($states_output, $return_code) = $anvil->System->call({debug => 3, shell_call => $shell_call, source => $THIS_FILE, line => __LINE__});
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
		states_output => $states_output,
		return_code   => $return_code, 
	}});
	
	return(0);
}

# Configure the local database, if needed.
sub prep_database
{
	my ($anvil) = @_;
	
	# If there's a backup file, we're configured and possibly just off. 
	my $prep_database = 1;
	foreach my $uuid (keys %{$anvil->data->{database}})
	{
		my $dump_file =  $anvil->data->{path}{directories}{pgsql}."/anvil_db_dump.".$uuid.".sql";
		   $dump_file =~ s/\/\//\//g;
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { dump_file => $dump_file }});
		if (-e $dump_file)
		{
			# No need to prepare.
			$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0665", variables => { file => $dump_file }});
			$prep_database = 0;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { prep_database => $prep_database }});
		}
	}
	
	# Only run this if we're a dashboard.
	my $host_type = $anvil->Get->host_type();
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { host_type => $host_type }});
	if ($host_type eq "striker")
	{
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			prep_database                => $prep_database,
			"sys::database::connections" => $anvil->data->{sys}{database}{connections}, 
		}});
		if ($prep_database)
		{
			$anvil->Database->configure_pgsql({debug => 2})
# 			### NOTE: This failed once, in case / until it happens again, we'll force log level 2 and secure logging.
# 			my $shell_call = $anvil->data->{path}{exe}{'striker-prep-database'}$anvil->Log->switches;
# 			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { shell_call => $shell_call }});
# 			my ($database_output, $return_code) = $anvil->System->call({debug => 2, shell_call => $shell_call, source => $THIS_FILE, line => __LINE__ });
# 			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
# 				database_output => $database_output,
# 				return_code     => $return_code, 
# 			}});
		}
		elsif (not $anvil->data->{sys}{database}{connections})
		{
			# Start the daemon locally, if needed.
			my $running = $anvil->System->check_daemon({daemon => "postgresql"});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { running => $running }});
			if ($running == 2)
			{
				# Not installed, nothing to do.
			}
			elsif (not $running)
			{
				# Start it.
				my $return_code = $anvil->System->start_daemon({daemon => "postgresql"});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { return_code => $return_code }});
			}
		}
	}
	
	return(0);
}

# These are tools that need to keep running.
sub keep_running
{
	my ($anvil) = @_;
	
	# Check for jobs that were running and now exited.
	if ((not $anvil->data->{sys}{mapping_network}) && (exists $anvil->data->{processes}))
	{
		foreach my $job_uuid (%{$anvil->data->{jobs}{handles}})
		{
			# If it's not a handle, delete it.
			my $running = $anvil->data->{jobs}{handles}{$job_uuid}->poll();
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
				"jobs::handles::${job_uuid}" => $anvil->data->{jobs}{handles}{$job_uuid},
				running                      => $running, 
			}});
			
			# If it's not running, update the table to clear the 'job_picked_up_by' column.
			if (not $running)
			{
				my $exit_status = $anvil->data->{jobs}{handles}{$job_uuid}->exit_status();
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 1, list => { 
					job_uuid    => $job_uuid, 
					exit_status => $exit_status,
				}});
				
				# Free up memory
				$anvil->data->{jobs}{handles}{$job_uuid}->cleanup();
				
				$anvil->Job->clear({job_uuid => $job_uuid});
			}
		}
	}
	
	# If we're configured, write out the status JSON file. If we're not configured, Update hardware state files.
	my $configured = $anvil->System->check_if_configured;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { configured => $configured }});
	if ((not $anvil->data->{sys}{mapping_network}) && ($configured))
	{
		# Write out state information for all known Anvil! systems and the information from 
		# unconfigured nods and DR hosts, using just database data (hence, fast enough to run 
		# constantly).
		$anvil->System->generate_state_json({debug => 2});
	}
	else
	{
		# Run this to monitor the network in real time.
		update_state_file($anvil);
	}
	
	# Run any pending jobs by calling 'anvil-jobs' with the 'job_uuid' as a background process.
	run_jobs($anvil, 0);
	
	return(0);
}

# This will check for any jobs that aren't at 100%. For each found, if 'picked_up_by' is set, a check is made
# to see if the PID is still alive. If it isn't, or if 'picked_up_by' is not set, the appropriate tool is
# invoked to handle it.
sub run_jobs
{
	my ($anvil, $startup) = @_;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { startup => $startup }});
	
	# Don't start jobs for 30 seconds after startup.
	if (not $startup)
	{
		my $time_since_start = time - $start_time;
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			time_since_start => $time_since_start,
			start_time       => $start_time,
		}});
		if ($time_since_start < 60)
		{
			# Log that we'll start jobs in X seconds.
			my $will_start_in = 60 - $time_since_start;
			$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "message_0326", variables => { will_start_in => $will_start_in }});
			return(0);
		}
	}
	
	# This will be set to 1 if any jobs are not complete, preventing a restart of the daemon if it's 
	# changed on disk.
	$anvil->data->{sys}{jobs_running} = 0;
	
	# If we're not configured, we won't hold on starting jobs
	my $configured = $anvil->System->check_if_configured;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { configured => $configured }});
	
	# We'll also update the jobs.json file.
	my $jobs_file = "{\"jobs\":[\n";
	
	# Get a list of pending or incomplete jobs.
	my $ended_within = $startup ? 1 : 300;
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { ended_within => $ended_within }});
	
	$anvil->Database->get_jobs({
		debug        => 2, 
		ended_within => $ended_within,
	});
	foreach my $modified_date (sort {$a cmp $b} keys %{$anvil->data->{jobs}{modified_date}})
	{
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { modified_date => $modified_date }});
		foreach my $job_uuid (sort {$a cmp $b} keys %{$anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}})
		{
			# Reload the jobs so we get an updated view of them.
			$anvil->Database->get_jobs({
				debug        => 2, 
				ended_within => $ended_within,
			});
			
			# Collect the data.
			my $job_command         =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_command};
			my $short_command       =  $job_command;
			   $short_command       =~ s/\s.*$//;
			my $job_data            =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_data};
			my $job_picked_up_by    =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_picked_up_by};
			my $job_picked_up_at    =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_picked_up_at};
			my $job_updated         =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_updated};
			my $job_name            =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_name};
			my $job_progress        =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_progress};
			my $job_title           =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_title};
			my $job_description     =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_description};
			my $job_status          =  $anvil->data->{jobs}{modified_date}{$modified_date}{job_uuid}{$job_uuid}{job_status};
			my $started_seconds_ago =  $job_picked_up_at ? (time - $job_picked_up_at) : 0;
			my $updated_seconds_ago =  $job_updated      ? (time - $job_updated)      : 0;
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				's01:job_uuid'             => $job_uuid,
				's02:job_command'          => $job_command, 
				's03:short_command'        => $short_command, 
				's04:job_data'             => $job_data, 
				's05:job_picked_up_by'     => $job_picked_up_by, 
				's06:job_picked_up_at'     => $job_picked_up_at, 
				's07:job_updated'          => $job_updated, 
				's08:job_name'             => $job_name, 
				's09:job_progress'         => $job_progress, 
				's10:job_title'            => $job_title, 
				's11:job_description'      => $job_description, 
				's12:job_status'           => $job_status, 
				's13:started_seconds_ago'  => $started_seconds_ago, 
				's14:updated_seconds_ago'  => $updated_seconds_ago, 
				's15:sys::mapping_network' => $anvil->data->{sys}{mapping_network},
			}});
			
			# If we're mapping, we'll only run 'anvil-configure-host' jobs on this host.
			next if (($anvil->data->{sys}{mapping_network}) && ($job_command !~ /anvil-configure-host/));
			
			# To minimize the chance of race conditions, any given command will be called only 
			# once at a time. If two jobs of the same command exist, only one will be called.
			if ($job_progress != 100)
			{
				if (exists $anvil->data->{sys}{started}{$short_command})
				{
					# Skip it.
					my $started_job = $anvil->data->{sys}{started}{$short_command};
					$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0737", variables => { 
						started_job => $started_job, 
						job_uuid    => $job_uuid,
						command     => $short_command, 
					}});
					next;
				}
				$anvil->data->{sys}{started}{$short_command} = $job_uuid;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "sys::started::${short_command}" => $anvil->data->{sys}{started}{$short_command} }});
			}
			
			# If this is a start-up call, only start jobs whose status is 'anvil_startup'.
			if (($startup) && ($configured) && ($job_status ne "anvil_startup"))
			{
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0639", variables => { 
					job_uuid    => $job_uuid,
					job_command => $job_command, 
				}});
				next;
			}
			
			if ($job_progress == 100)
			{
				# This is a job that might have just completed, clear the started value.
				$anvil->data->{jobs}{$job_uuid}{started} = 0;
				$job_picked_up_at                        = 0;
				$job_picked_up_by                        = 0;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
					job_picked_up_at             => $job_picked_up_at, 
					job_picked_up_by             => $job_picked_up_by, 
					"jobs::${job_uuid}::started" => $anvil->data->{jobs}{$job_uuid}{started},
				}});
			}
			else
			{
				$anvil->data->{sys}{jobs_running} = 1;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "sys::jobs_running" => $anvil->data->{sys}{jobs_running} }});
			}
			
			# See if the job was picked up by a now-dead instance.
			if ($job_picked_up_by)
			{
				# Check if the PID is still active.
				$anvil->System->pids({ignore_me => 1});
				
				### TODO: Add a check to verify the job isn't hung.
				# Skip if this job is in progress.
				if (not exists $anvil->data->{pids}{$job_picked_up_by})
				{
					# If the job is done, just clear the 'job_picked_up_by' and be done.
					if ($job_progress ne "100")
					{
						# It's possible that the job updated to 100% and exited after
						# we gathered the job data, so we won't restart until we've 
						# seen it not running and not at 100% after 5 loops.
						if ((not exists $anvil->data->{lost_job_count}{$job_uuid}) or (not defined $anvil->data->{lost_job_count}{$job_uuid}))
						{
							$anvil->data->{lost_job_count}{$job_uuid} = 0;
							$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "lost_job_count::${job_uuid}" => $anvil->data->{lost_job_count}{$job_uuid} }});
						}
						if ($anvil->data->{lost_job_count}{$job_uuid} > 5)
						{
							# The previous job is gone, but the job isn't 
							# finished. Start it again.
							$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, priority => "alert", key => "warning_0007", variables => { 
								command => $job_command,
								pid     => $job_picked_up_by,
								percent => $job_progress, 
							}});
							
							# Clear some variables.
							$job_progress = 0;
							$job_status   = "message_0056";
							$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
								job_progress => $job_progress,
								job_status   => $job_status,
							}});
							
							# Clear the job.
							$anvil->Job->clear({debug => 2, job_uuid => $job_uuid});
							$anvil->data->{lost_job_count}{$job_uuid} = 0;
							$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "lost_job_count::${job_uuid}" => $anvil->data->{lost_job_count}{$job_uuid} }});
						}
						else
						{
							$anvil->data->{lost_job_count}{$job_uuid}++;
							$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "lost_job_count::${job_uuid}" => $anvil->data->{lost_job_count}{$job_uuid} }});
						}
					}
					
					# Clear the PID 
					$job_picked_up_by = 0;
					$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { job_picked_up_by => $job_picked_up_by }});
				}
				elsif ($job_progress ne "100")
				{
					# The job is running.
					$anvil->data->{jobs_started}{$short_command} = $job_uuid;
					$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "jobs_started::${short_command}" => $anvil->data->{jobs_started}{$short_command} }});
				}
			}
			
			# Convert the double-banged strings into a proper message.
			my $say_title       = $job_title       ? $anvil->Words->parse_banged_string({key_string => $job_title})       : "";
			my $say_description = $job_description ? $anvil->Words->parse_banged_string({key_string => $job_description}) : "";
			my $say_status      = $job_status      ? $anvil->Words->parse_banged_string({key_string => $job_status})      : "";
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
				job_title       => $job_title, 
				say_description => $say_description, 
				say_status      => $say_status,
			}});
			
			# Make the status HTML friendly. Strip any embedded HTML then encode the text string.
			if ($say_status)
			{
				my $html_strip = HTML::Strip->new();
				   $say_status = $html_strip->parse($say_status);
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { say_status => $say_status }});
				
				# Now make the resulting text string HTML friendly
				my $text_to_html = HTML::FromText->new({
					urls   => 1,
					email  => 1,
					lines  => 1,
				});
				$say_status = $text_to_html->parse($say_status);
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { say_status => $say_status }});
			}
			
			# Add this to the jobs.json file
			my $json_string = to_json ({
				job_uuid            => $job_uuid,
				job_command         => $job_command, 
				job_data            => $job_data, 
				job_picked_up_at    => $job_picked_up_at, 
				job_updated         => $job_updated, 
				job_name            => $job_name,
				job_progress        => $job_progress, 
				job_title           => $say_title, 
				job_description     => $say_description,
				job_status          => $say_status,
				started_seconds_ago => $started_seconds_ago,
				updated_seconds_ago => $updated_seconds_ago,
			});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { json_string => $json_string }});
			$jobs_file .= $json_string.",\n";
			
			# If the job is done, move on.
			next if $job_progress == 100;
			next if $anvil->data->{switches}{'no-start'};
			
			# If 'startup' is set, we only care if 'job_status' is 'anvil_startup'
			if ((not $startup) && ($say_status eq "anvil_startup"))
			{
				# Skip this, it will run next time anvil-daemon restarts.
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0593", variables => { 
					command  => $job_command,
					job_uuid => $job_uuid, 
				}});
				next;
			}
			
			# If the job is not running, and we've not started any other of the same command this
			# loop, start it.
			if (not $job_picked_up_by)
			{
				if (exists $anvil->data->{jobs_started}{$short_command})
				{
					# Is the job_uuid associated with this command done?
					my $started_job_uuid = $anvil->data->{jobs_started}{$short_command};
					$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { started_job_uuid => $started_job_uuid }});
					
					if (exists $anvil->data->{jobs}{running}{$started_job_uuid})
					{
						# If the previously running job and this job have the same
						# UUID, it failed and needs to restart.
						$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
							job_uuid                                           => $job_uuid, 
							started_job_uuid                                   => $started_job_uuid,
							"jobs::running::${started_job_uuid}::job_progress" => $anvil->data->{jobs}{running}{$started_job_uuid}{job_progress}, 
						}});
						if ($started_job_uuid eq $job_uuid)
						{
							# We're restarting.
							$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0741", variables => { 
								command  => $job_command,
								job_uuid => $job_uuid, 
							}});
						}
						elsif ($anvil->data->{jobs}{running}{$started_job_uuid}{job_progress} != 100)
						{
							# Don't start it in this pass.
							$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0741", variables => { 
								command        => $job_command,
								this_job_uuid  => $job_uuid, 
								other_job_uuid => $started_job_uuid,
							}});
							next;
						}
						else
						{
							# The previous job is done, delete it.
							$anvil->data->{jobs_started}{$short_command} = "";
							$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
								"jobs_started::${short_command}" => $anvil->data->{jobs_started}{$short_command},
							}});
						}
					}
				}
				
				my $command = $job_command." --job-uuid ".$job_uuid;
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0210", variables => { command => $command }});
				
				# Have we started this job recently?
				if (exists $anvil->data->{jobs}{$job_uuid}{started})
				{
					my $last_start = time - $anvil->data->{jobs}{$job_uuid}{started};
					$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { last_start => $last_start }});
					
					if ($last_start < 60)
					{
						# Skip, Started too recently.
						$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0578", variables => { 
							command    => $command,
							last_start => $last_start, 
						}});
						next;
					}
				}
				
				# Start the job, appending '--job-uuid' to the command.
				($anvil->data->{jobs}{handles}{$job_uuid}, my $return_code) = $anvil->System->call({
					background  => 1, 
					stdout_file => "/tmp/anvil.job.".$job_uuid.".stdout",
					stderr_file => "/tmp/anvil.job.".$job_uuid.".stderr", 
					shell_call  => $command, 
					source      => $THIS_FILE, 
					line        => __LINE__,
				});
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
					"jobs::handles::${job_uuid}" => $anvil->data->{jobs}{handles}{$job_uuid}, 
					return_code                  => $return_code,
				}});
				
				# Log the PID (the job should update the database).
				my $pid = $anvil->data->{jobs}{handles}{$job_uuid}->pid();
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { pid => $pid }});
				
				# Record that we've tried to start this job, so that we don't try to restart it for any reason for at least a minute.
				$anvil->data->{jobs}{$job_uuid}{started} = time;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 'jobs::$job_uuid::started' => $anvil->data->{jobs}{$job_uuid}{started} }});
				
				# Record that a job with this command has started 
				$anvil->data->{jobs_started}{$short_command} = $job_uuid;
				$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "jobs_started::${short_command}" => $anvil->data->{jobs_started}{$short_command} }});
			}
		}
	}
	
	# Close the jobs file.
	$jobs_file =~ s/,\n$/\n/ms;
	$jobs_file .= "]}\n";
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { jobs_file => $jobs_file }});
	
	# Write the JSON file
	my $output_json = $anvil->data->{path}{directories}{html}."/status/jobs.json";
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { output_xml => $output_json }});
	$anvil->Storage->write_file({
		file      => $output_json, 
		body      => $jobs_file, 
		overwrite => 1,
		backup    => 0,
		mode      => "0644", 
		user      => "apache", 
		group     => "apache",
	});
	
	return(0);
}

#
sub check_files
{
	my ($anvil) = @_;
	
	# Make sure the shared directories exist.
	foreach my $target (sort {$a cmp $b} keys %{$anvil->data->{path}{directories}{shared}})
	{
		my $directory = $anvil->data->{path}{directories}{shared}{$target};
		$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
			target    => $target, 
			directory => $directory,
		}});
		if (-e $directory)
		{
			# Make sure the permissions are correct.
			$anvil->Storage->get_file_stats({file_path => $directory});
			
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { 
				"file_stat::${directory}::unix_mode" => $anvil->data->{file_stat}{$directory}{unix_mode},
			}});
			if ($anvil->data->{file_stat}{$directory}{unix_mode} !~ /0777$/)
			{
				$anvil->Storage->change_mode({
					debug => 2,
					path  => $directory, 
				 	mode => "0777"
				});
			}
		}
		elsif (not -e $anvil->data->{path}{directories}{shared}{$target})
		{
			my $failed = $anvil->Storage->make_directory({
				directory => $directory,
				group     => "apache", 
				user      => "apache",
				mode      => "0777",
			});
			$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { failed => $failed }});
			if ($failed)
			{
				# Something went wrong.
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "alert", key => "log_0254", variables => {
					directory => $directory,
				}});
			}
			else
			{
				# Success
				$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0255", variables => {
					directory => $directory,
				}});
			}
		}
	}
	
	# Look for files on our system that are in file_locations. If they're shown as ready, make sure 
	# they're there. If they're marked as not ready, see if they now are.
	$anvil->Storage->check_files({debug => 2});
	
	return(0);
}

# This calls 'anvil-update-states' which will scan the local machine's state (hardware and software) and
# record write it out to an HTML file 
sub update_state_file
{
	my ($anvil) = @_;
	
	$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 3, key => "log_0480"});
	
	#my $shell_call = $anvil->data->{path}{exe}{'anvil-update-states'}.$anvil->Log->switches;
	my $shell_call = $anvil->data->{path}{exe}{'anvil-update-states'};
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { shell_call => $shell_call }});
	
	my ($states_output, $return_code) = $anvil->System->call({debug => 3, shell_call => $shell_call, source => $THIS_FILE, line => __LINE__});
	$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { 
		states_output => $states_output,
		return_code   => $return_code, 
	}});
	
	return(0);
}