59 lines
1.4 KiB
Python
59 lines
1.4 KiB
Python
defaults = {
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'apt': {
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'packages': {
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'unbound': {},
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'unbound-anchor': {},
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},
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},
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'cron': {
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'unbound_refresh_root-hints': '{} {} * * {} root wget -O/etc/unbound/root-hints.txt https://www.internic.net/domain/named.root >/dev/null'.format(
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node.magic_number%60,
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node.magic_number%24,
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node.magic_number%7,
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),
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},
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'nameservers': {
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'127.0.0.1',
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},
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'unbound': {
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'max_ttl': 3600,
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'cache_size': '512M',
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},
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}
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@metadata_reactor.provides(
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'unbound/threads',
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'unbound/cache_slabs',
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)
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def cpu_cores_to_config_values(metadata):
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num_cpus = metadata.get('vm/cpu', 1)
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return {
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'unbound': {
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'threads': num_cpus*2,
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'cache_slabs': 2**(num_cpus-1).bit_length(),
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},
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}
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@metadata_reactor.provides(
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'iptables/bundle_rules/unbound',
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)
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def iptables(metadata):
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interfaces = metadata.get('unbound/restrict-to-interfaces', set())
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iptables = []
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for iface in sorted(interfaces):
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iptables.append(f'iptables_both -A INPUT -i {iface} -p tcp --dport 53 -j ACCEPT')
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iptables.append(f'iptables_both -A INPUT -i {iface} -p udp --dport 53 -j ACCEPT')
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return {
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'iptables': {
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'bundle_rules': {
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'unbound': iptables,
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},
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},
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}
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