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comparison dns.py @ 241:075ceead3673

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dns work
author drewp@bigasterisk.com
date Mon, 11 Dec 2023 21:22:40 -0800
parents 33db4d39e554
children 4e424a144183
comparison
equal deleted inserted replaced
240:b58f05be720a 241:075ceead3673
1 from io import StringIO
2 import subprocess
3 from tempfile import NamedTemporaryFile
1 from pyinfra import host 4 from pyinfra import host
2 from pyinfra.operations import apt, files, systemd 5 from pyinfra.operations import files, systemd
3 6
4 7
5 def dnsmasq_instance(net_name, 8 def dnsmasq_instance(net_name,
6 house_iface, 9 house_iface,
7 dhcp_range='10.2.0.10,10.2.0.11', 10 dhcp_range='10.2.0.10,10.2.0.11',
18 dhcp_enabled=net_name == '10.2' and host.name == 'pipe', 21 dhcp_enabled=net_name == '10.2' and host.name == 'pipe',
19 dns_server=listen_address, 22 dns_server=listen_address,
20 router=listen_address, 23 router=listen_address,
21 ) 24 )
22 files.template(src='templates/dnsmasq/hosts.j2', dest=f'/opt/dnsmasq/{net_name}/hosts', net=net_name) 25 files.template(src='templates/dnsmasq/hosts.j2', dest=f'/opt/dnsmasq/{net_name}/hosts', net=net_name)
23 files.template(src=dhcp_hosts_filename, dest=f'/opt/dnsmasq/{net_name}/dhcp_hosts', net=net_name) 26
27 dhcp_hosts = subprocess.check_output(['python3', '/my/serv/lanscape/src/public/make_dhcp_hosts.py'], encoding='utf8')
28 files.put(src=StringIO(dhcp_hosts), dest=f'/opt/dnsmasq/{net_name}/dhcp_hosts')
24 29
25 files.template(src='templates/dnsmasq/dnsmasq.service.j2', 30 files.template(src='templates/dnsmasq/dnsmasq.service.j2',
26 dest=f'/etc/systemd/system/dnsmasq_{net_name}.service', 31 dest=f'/etc/systemd/system/dnsmasq_{net_name}.service',
27 net=net_name) 32 net=net_name)
28 if net_name in ['10.2', '10.2-filtered']: 33 if net_name in ['10.2', '10.2-filtered']:
36 systemd.service(service='systemd-resolved.service', running=True, restarted=True) 41 systemd.service(service='systemd-resolved.service', running=True, restarted=True)
37 42
38 43
39 standard_host_dns() 44 standard_host_dns()
40 45
46 # no default instance; i'll add some specific ones below
47 systemd.service(service='dnsmasq', enabled=False, running=False)
48
41 if host.name == 'bang': 49 if host.name == 'bang':
42 systemd.service(service='dnsmasq', enabled=False, running=False)
43 files.directory(path='/opt/dnsmasq') 50 files.directory(path='/opt/dnsmasq')
44 51
45 dnsmasq_instance('10.5', house_iface='unused', dhcp_range='unused', 52 dnsmasq_instance('10.5', house_iface='unused', dhcp_range='unused',
46 listen_address='unused') # only works after wireguard is up 53 listen_address='unused') # only works after wireguard is up
47 54
48 elif host.name == 'ditto':
49 systemd.service(service='dnsmasq', enabled=False, running=False)
50
51 elif host.name == 'pipe': 55 elif host.name == 'pipe':
52 systemd.service(service='dnsmasq', enabled=False, running=False)
53 files.directory(path='/opt/dnsmasq') 56 files.directory(path='/opt/dnsmasq')
54 dnsmasq_instance('10.2', 57 dnsmasq_instance('10.2',
55 house_iface='eth1', 58 house_iface='eth1',
56 dhcp_range='10.2.0.101,10.2.0.240', 59 dhcp_range='10.2.0.110,10.2.0.199',
57 listen_address='10.2.0.3', 60 listen_address='10.2.0.3',
58 dhcp_hosts_filename='templates/dnsmasq/dhcp_hosts.j2') 61 dhcp_hosts_filename='templates/dnsmasq/dhcp_hosts.j2')
59 out = '/opt/dnsmasq/10.2' 62 out = '/opt/dnsmasq/10.2'
60 # This mtail is for dhcp command counts and errors. Another monitor in lanscape/ reads the leases file. 63 # This mtail is for dhcp command counts and errors. Another monitor in lanscape/ reads the leases file.
61 files.template(src='templates/dnsmasq/metrics.mtail.j2', dest=f'{out}/metrics.mtail') 64 files.template(src='templates/dnsmasq/metrics.mtail.j2', dest=f'{out}/metrics.mtail')
62 files.template(src='templates/dnsmasq/run_mtail.sh', dest=f'{out}/run_mtail.sh') 65 files.template(src='templates/dnsmasq/run_mtail.sh', dest=f'{out}/run_mtail.sh')
63 66
64 files.template(src='templates/dnsmasq/dnsmasq-mtail.service.j2', dest=f'/etc/systemd/system/dnsmasq-mtail.service') 67 files.template(src='templates/dnsmasq/dnsmasq-mtail.service.j2', dest='/etc/systemd/system/dnsmasq-mtail.service')
65 systemd.service(service=f'dnsmasq-mtail', enabled=True, restarted=True, daemon_reload=True) 68 systemd.service(service='dnsmasq-mtail', enabled=True, restarted=True, daemon_reload=True)
66 69
67 # Serve another dns, no dhcp, and include the dynamic-blocking file written by net_routes. 70 # Serve another dns, no dhcp, and include the dynamic-blocking file written by net_routes.
68 dnsmasq_instance( 71 dnsmasq_instance(
69 net_name='10.2-filtered', 72 net_name='10.2-filtered',
70 house_iface='eth1', 73 house_iface='eth1',