/[pxelator]/lib/PXElator/server.pm
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Contents of /lib/PXElator/server.pm

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Revision 527 - (show annotations)
Fri Sep 17 17:18:30 2010 UTC (13 years, 6 months ago) by dpavlin
File size: 1875 byte(s)
correctly configure ip, broadcast and netmask with DEV=eth0

1 package server;
2
3 use warnings;
4 use strict;
5
6 use Data::Dump qw(dump);
7 use YAML qw();
8
9 our $base_dir = '/srv/pxelator';
10
11 use ties;
12
13 tie our $ip, 'ties', 'server_ip' => '172.16.10.1';
14 tie our $netmask, 'ties', 'netmask' => '255.255.255.0';
15 tie our $bcast, 'ties', 'bcast' => '172.16.10.254';
16 tie our $ip_from, 'ties', 'ip_from' => 10;
17 tie our $ip_to, 'ties', 'ip_to' => 100;
18 tie our $domain, 'ties', 'domain' => 'pxelator.lan';
19 tie our $new_clients, 'ties', 'new_clients' => $ip_to - $ip_from;
20
21 if ( my $dev = $ENV{DEV} ) {
22 my $ifconfig = `ifconfig $dev`;
23 die "can't ifconfig $dev" unless $ifconfig;
24 $ip = $1 if $ifconfig =~ m/inet addr:(\S+)/s;
25 $netmask = $1 if $ifconfig =~ m/Mask:(\S+)/s;
26 $bcast = $1 if $ifconfig =~ m/Bcast:(\S)/s;
27 }
28
29 warn "DEV $ip $bcast $netmask";
30
31 our $conf = "$base_dir/conf";
32 mkdir $conf unless -e $conf;
33
34 sub conf {
35 warn "## conf $conf";
36 $conf;
37 }
38
39 use Module::Refresh qw//;
40 sub refresh {
41 Module::Refresh->refresh;
42 my $from = (caller(1))[3];
43 $from =~ s{^(\w+)::.+$}{$1};
44 my $eval = '$' . $from . '::debug = server::debug();';
45 warn "refresh $eval\n";
46 eval $eval;
47 warn $@ if $@;
48 };
49
50 mkdir $_ foreach grep { ! -d $_ } map { "$conf/$_" } ( 'ip', 'mac' );
51
52 use File::Slurp;
53 sub shared {
54 my ($name, $value) = @_;
55
56 my $path ="$conf/$name";
57 if ( defined $value ) {
58 write_file $path, $value;
59 warn "update $path = $value";
60 } else {
61 $value = read_file $path if -e $path;
62 }
63 return $value;
64 }
65
66 sub conf_default { shared($_[0]) || $_[1] }
67
68 sub debug { shared('debug', @_) || 0 }
69
70 sub as_hash_for {
71 my $ip = shift;
72
73 my $server;
74 map { $server->{ $_ } = eval '$server::' . $_ } ( 'ip', 'netmask', 'bcast', 'domain', 'ip_from', 'ip_to', 'new_clients' );
75
76 my $server_path = "$server::conf/ip/$ip/server.yaml";
77 $server = YAML::LoadFile $server_path if -e $server_path;
78
79 return $server;
80 }
81
82 warn "loaded";
83
84 1;

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