4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
# File 'modules/profile/manifests/dns/recursor.pp', line 4
class profile::dns::recursor (
Optional[Hash[String, Wmflib::Advertise_vip]] $advertise_vips = lookup('profile::bird::advertise_vips', {'default_value' => {}, 'merge' => hash}),
Optional[String] $bind_service = lookup('profile::dns::recursor::bind_service', {'default_value' => undef}),
Hash[Wmflib::Sites, Array[Stdlib::Fqdn]] $ntp_peers = lookup('ntp_peers'),
Hash[Wmflib::Sites, Wmflib::Sites] $site_nearest_core = lookup('site_nearest_core'),
Hash[Stdlib::Fqdn, Stdlib::IP::Address::Nosubnet] $authdns_servers = lookup('authdns_servers'),
Array[Stdlib::IP::Address] $dont_query = lookup('profile::dns::recursor::dont_query', {'default_value' => []}),
Array[Stdlib::IP::Address] $dont_query_negations = lookup('profile::dns::recursor::dont_query_negations', {'default_value' => []}),
Boolean $use_new_pdns_cfg = lookup('profile::dns::recursor::use_new_pdns_cfg', {'default_value' => false}),
) {
include network::constants
include profile::firewall
include profile::bird::anycast
include profile::dns::check_dns_query
# For historical context, this was managed through per-host DNS host
# overrides, such as hieradata/hosts/dns1001.yaml. To manage this list
# manually, we do not include profile::resolving from profile::base but
# instead call it from here, passing the automatically generated
# resolv.conf nameservers list.
#
# This is a bit of a hack: since all NTP hosts are also DNS hosts, use the
# ntp_peers list to get a list of per-site DNS hosts. We use the same logic
# to generate the NTP peers list in P:systemd::timesyncd, with the
# difference that we need the IP addresses here and not the hostnames.
$dns_servers_and_self = [$ntp_peers[$::site], $ntp_peers[$site_nearest_core[$::site]]].flatten
# A host cannot/should not resolve against itself.
$dns_servers = delete($dns_servers_and_self, $facts['networking']['fqdn'])
# Get the IP addresses from authdns_servers in common.yaml, since it's the
# canonical list anyway.
$nameservers = $dns_servers.map |$server| {
$authdns_servers[$server]
}.filter |$x| { $x =~ NotUndef }
if $nameservers.empty() {
fail('no nameservers configured')
}
class { 'profile::resolving' :
nameservers => $nameservers,
}
$recdns_vips = $advertise_vips.filter |$vip_fqdn,$vip_params| { $vip_params['service_type'] == 'recdns' }
$recdns_addrs = $recdns_vips.map |$vip_fqdn,$vip_params| { $vip_params['address'] }
$listen_addrs = [
$facts['ipaddress'],
$facts['ipaddress6'],
$recdns_addrs,
]
class { '::dnsrecursor':
version_hostname => true,
allow_from => $network::constants::aggregate_networks,
listen_addresses => $listen_addrs,
allow_from_listen => false,
log_common_errors => 'no',
threads => $facts['physicalcorecount'],
enable_webserver => true,
webserver_port => 9199,
api_allow_from => $network::constants::aggregate_networks,
bind_service => $bind_service,
allow_extended_errors => true,
require => Systemd::Service['gdnsd'],
dont_query => $dont_query,
dont_query_negations => $dont_query_negations,
use_new_pdns_cfg => $use_new_pdns_cfg,
}
ferm::service { 'udp_dns_recursor':
proto => 'udp',
notrack => true,
prio => 7,
port => '53',
drange => "(${listen_addrs.join(' ')})",
srange => "(${network::constants::aggregate_networks.join(' ')})",
}
ferm::service { 'tcp_dns_recursor':
proto => 'tcp',
notrack => true,
prio => 7,
port => '53',
drange => "(${listen_addrs.join(' ')})",
srange => "(${network::constants::aggregate_networks.join(' ')})",
}
::dnsrecursor::monitor { [ $facts['ipaddress'], $facts['ipaddress6'] ]: }
sudo::user { 'prometheus_sudo_for_pdns_recursor':
user => 'prometheus',
privileges => ['ALL=(root) NOPASSWD: /usr/bin/rec_control get-all'],
}
}
|