bundlewrap/bundles/unbound/metadata.py

77 lines
1.8 KiB
Python

from bundlewrap.metadata import atomic
defaults = {
'apt': {
'packages': {
'unbound': {},
'unbound-anchor': {},
},
},
'nameservers': {
'127.0.0.1',
},
'systemd-timers': {
'timers': {
'unbound-refresh-root-hints': {
'command': 'wget -q -O/etc/unbound/root-hints.txt https://www.internic.net/domain/named.root',
'when': '{}:{}:00'.format(
node.magic_number % 24,
node.magic_number % 60,
),
},
'unbound-auto-restart': {
'command': '/usr/local/sbin/unbound-auto-restart',
'when': 'minutely',
},
},
},
'unbound': {
'max_ttl': 3600,
'cache_size': '512M',
},
}
if node.has_bundle('telegraf'):
defaults['telegraf'] = {
'input_plugins': {
'builtin': {
'unbound': [{
'thread_as_tag': True,
'use_sudo': True
}],
},
},
'sudo_commands': {
'/usr/sbin/unbound-control',
},
}
@metadata_reactor.provides(
'unbound/threads',
'unbound/cache_slabs',
)
def cpu_cores_to_config_values(metadata):
num_cpus = metadata.get('vm/cpu', 1)
return {
'unbound': {
'threads': num_cpus*2,
'cache_slabs': 2**(num_cpus-1).bit_length(),
},
}
@metadata_reactor.provides(
'firewall/port_rules',
)
def firewall(metadata):
return {
'firewall': {
'port_rules': {
'53/tcp': atomic(metadata.get('unbound/restrict-to', set())),
'53/udp': atomic(metadata.get('unbound/restrict-to', set())),
},
},
}