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annotate dns.py @ 241:075ceead3673
dns work
| author | drewp@bigasterisk.com |
|---|---|
| date | Mon, 11 Dec 2023 21:22:40 -0800 |
| parents | 33db4d39e554 |
| children | 4e424a144183 |
| rev | line source |
|---|---|
| 241 | 1 from io import StringIO |
| 2 import subprocess | |
| 3 from tempfile import NamedTemporaryFile | |
|
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4 from pyinfra import host |
| 241 | 5 from pyinfra.operations import files, systemd |
| 38 | 6 |
| 94 | 7 |
| 213 | 8 def dnsmasq_instance(net_name, |
| 9 house_iface, | |
| 10 dhcp_range='10.2.0.10,10.2.0.11', | |
| 11 listen_address='reqd', | |
| 12 dhcp_hosts_filename='/dev/null'): | |
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13 files.directory(path=f'/opt/dnsmasq/{net_name}') |
| 213 | 14 files.template( |
| 15 src='templates/dnsmasq/dnsmasq.conf.j2', | |
| 16 dest=f'/opt/dnsmasq/{net_name}/dnsmasq.conf', | |
| 17 net=net_name, | |
| 18 house_iface=house_iface, | |
| 19 dhcp_range=dhcp_range, | |
| 20 listen_address=listen_address, | |
| 21 dhcp_enabled=net_name == '10.2' and host.name == 'pipe', | |
| 22 dns_server=listen_address, | |
| 23 router=listen_address, | |
| 24 ) | |
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parents:
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25 files.template(src='templates/dnsmasq/hosts.j2', dest=f'/opt/dnsmasq/{net_name}/hosts', net=net_name) |
| 241 | 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') | |
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parents:
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29 |
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dae714e8f620
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parents:
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30 files.template(src='templates/dnsmasq/dnsmasq.service.j2', |
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31 dest=f'/etc/systemd/system/dnsmasq_{net_name}.service', |
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32 net=net_name) |
| 213 | 33 if net_name in ['10.2', '10.2-filtered']: |
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34 systemd.service(service=f'dnsmasq_{net_name}', enabled=True, restarted=True, daemon_reload=True) |
| 94 | 35 |
| 213 | 36 |
| 179 | 37 def standard_host_dns(): |
| 38 files.template(src='templates/hosts.j2', dest='/etc/hosts') | |
| 39 files.link(path='/etc/resolv.conf', target='/run/systemd/resolve/resolv.conf', force=True) | |
| 40 files.template(src='templates/resolved.conf.j2', dest='/etc/systemd/resolved.conf') | |
| 41 systemd.service(service='systemd-resolved.service', running=True, restarted=True) | |
| 94 | 42 |
| 213 | 43 |
| 179 | 44 standard_host_dns() |
| 94 | 45 |
| 241 | 46 # no default instance; i'll add some specific ones below |
| 47 systemd.service(service='dnsmasq', enabled=False, running=False) | |
| 48 | |
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49 if host.name == 'bang': |
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d4fb38f13c79
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parents:
diff
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50 files.directory(path='/opt/dnsmasq') |
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d4fb38f13c79
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drewp@bigasterisk.com
parents:
diff
changeset
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51 |
| 213 | 52 dnsmasq_instance('10.5', house_iface='unused', dhcp_range='unused', |
| 53 listen_address='unused') # only works after wireguard is up | |
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34
d4fb38f13c79
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drewp@bigasterisk.com
parents:
diff
changeset
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54 |
| 94 | 55 elif host.name == 'pipe': |
| 56 files.directory(path='/opt/dnsmasq') | |
| 116 | 57 dnsmasq_instance('10.2', |
| 58 house_iface='eth1', | |
| 241 | 59 dhcp_range='10.2.0.110,10.2.0.199', |
| 213 | 60 listen_address='10.2.0.3', |
| 116 | 61 dhcp_hosts_filename='templates/dnsmasq/dhcp_hosts.j2') |
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62 out = '/opt/dnsmasq/10.2' |
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51a471fa4d29
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63 # This mtail is for dhcp command counts and errors. Another monitor in lanscape/ reads the leases file. |
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64 files.template(src='templates/dnsmasq/metrics.mtail.j2', dest=f'{out}/metrics.mtail') |
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51a471fa4d29
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drewp@bigasterisk.com
parents:
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65 files.template(src='templates/dnsmasq/run_mtail.sh', dest=f'{out}/run_mtail.sh') |
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51a471fa4d29
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drewp@bigasterisk.com
parents:
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66 |
| 241 | 67 files.template(src='templates/dnsmasq/dnsmasq-mtail.service.j2', dest='/etc/systemd/system/dnsmasq-mtail.service') |
| 68 systemd.service(service='dnsmasq-mtail', enabled=True, restarted=True, daemon_reload=True) | |
| 94 | 69 |
| 213 | 70 # Serve another dns, no dhcp, and include the dynamic-blocking file written by net_routes. |
| 71 dnsmasq_instance( | |
| 72 net_name='10.2-filtered', | |
| 73 house_iface='eth1', | |
| 74 listen_address='10.2.0.4', | |
| 75 ) |