Files
netdisco/Netdisco/bin/netdisco-daemon
2012-12-03 21:09:25 +00:00

128 lines
3.3 KiB
Perl
Executable File

#!/usr/bin/env perl
use Dancer ':syntax :script';
use Dancer::Plugin::DBIC 'schema';
# add dispatch methods for each port control action
use base 'Netdisco::PortControl';
use Daemon::Generic::While1;
use Netdisco::Util 'load_nd_config';
use Try::Tiny;
newdaemon(
progname => 'netdisco-daemon',
($> != 0 ? (pidbase => './') : ()),
configfile => '/etc/netdisco/netdisco.conf',
logpriority => 'daemon.info',
);
sub gd_preconfig {
my $self = shift;
my $config = load_nd_config($self->{configfile});
$self->gd_error("No read-write community string has been set.")
unless length $config->{_}->{community_rw};
# add local settings
$config->{loc} = {
sleep_time => 5,
};
return (); # important
}
sub dispatch {
my ($self, $job) = @_;
# do update
my %dispatch = (
location => 'set_location',
);
my $target = $dispatch{$job->action}
or return ();
# return results
return $self->$target($job);
}
sub gd_run_body {
my $self = shift;
my $nd_config = var('nd_config');
# get all pending jobs
my $rs = schema('netdisco')->resultset('Admin')->search({
action => [qw/location contact portcontrol portname vlan/],
status => 'queued',
});
JOB: while (my $job = $rs->next) {
# filter for discover_*
my $device = NetAddr::IP::Lite->new($job->device) or next JOB;
if (length $nd_config->{_}->{discover_no}) {
my @d_no = split /,\s*/, $nd_config->{_}->{discover_no};
foreach my $item (@d_no) {
my $ip = NetAddr::IP::Lite->new($item) or next JOB;
next JOB if $ip->contains($device);
}
}
if (length $nd_config->{_}->{discover_only}) {
my $okay = 0;
my @d_only = split /,\s*/, $nd_config->{_}->{discover_only};
foreach my $item (@d_only) {
my $ip = NetAddr::IP::Lite->new($item) or next JOB;
++$okay if $ip->contains($device);
}
next JOB if not $okay;
}
# lock db table, check job state is still queued, update to running
try {
my $status_updated = schema('netdisco')->txn_do(sub {
my $row = schema('netdisco')->resultset('Admin')->find(
{job => $job->job},
{for => 'update'}
);
return 0 if $row->status ne 'queued';
$row->update({status => 'running', started => \'now()'});
return 1;
});
next JOB if not $status_updated;
}
catch {
warn "error updating job status: $_\n";
next JOB;
};
# do job
my ($status, $log) = $self->dispatch($job);
# revert to queued status if we failed to connect to device
if (not $status) {
try {
schema('netdisco')->resultset('Admin')
->find($job->job)
->update({status => 'queued', started => undef});
}
catch { warn "error updating job: $_\n" };
}
else {
# update job state to done/error with log
try {
schema('netdisco')->resultset('Admin')
->find($job->job)
->update({status => $status, log => $log, finished => \'now()'});
}
catch { warn "error updating job: $_\n" };
}
}
$self->gd_sleep( $nd_config->{loc}->{sleep_time} );
}