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annotate wireguard.py @ 279:1cb4aeec8fc6
pi_setup code to prepare a pi for netboot
| author | drewp@bigasterisk.com |
|---|---|
| date | Sun, 14 Apr 2024 20:54:35 -0700 |
| parents | 705698800bfb |
| children | 65e28d2e0cd8 |
| rev | line source |
|---|---|
| 5 | 1 import subprocess |
| 2 | |
| 3 from pyinfra import host | |
| 4 from pyinfra.facts.files import FindInFile | |
| 259 | 5 from pyinfra.operations import files, systemd |
| 6 | |
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7 import wireguard_pubkey |
| 5 | 8 |
| 9 # other options: | |
| 10 # https://www.reddit.com/r/WireGuard/comments/fkr240/shortest_path_between_peers/ | |
| 11 # https://github.com/k4yt3x/wireguard-mesh-configurator | |
| 12 # https://github.com/mawalu/wireguard-private-networking | |
| 13 # | |
| 14 | |
| 15 | |
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16 def peer_block(hostname, allowed_ips, endpoint=None, keepalive=None): |
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17 # if allowed_ips.startswith('10.5'): |
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18 # # k3s nets also need to travel over wg |
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19 # allowed_ips += ', 10.42.0.0/24, 10.43.0.0/24' |
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drewp@bigasterisk.com
parents:
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20 |
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drewp@bigasterisk.com
parents:
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21 public_key = wireguard_pubkey.pubkey[hostname] |
| 5 | 22 out = f'''\ |
| 23 | |
| 24 [Peer] | |
| 25 # {hostname} | |
| 26 PublicKey = {public_key} | |
| 27 AllowedIPs = {allowed_ips} | |
| 28 ''' | |
| 29 if endpoint is not None: | |
| 30 out += f'Endpoint = {endpoint}\n' | |
| 31 if keepalive is not None: | |
| 32 out += f'PersistentKeepalive = {keepalive}\n' | |
| 33 return out | |
| 34 | |
| 35 | |
| 36 for wireguard_interface in ['wg0', 'bogasterisk']: | |
| 37 if wireguard_interface == 'bogasterisk' and host.name != 'prime': | |
| 38 continue | |
| 39 | |
| 40 # note- this is specific to the wg0 setup. Other conf files don't use it. | |
| 259 | 41 wireguard_ip = host.host_data.get('wireguard_address') |
| 42 if wireguard_interface == 'wg0' and wireguard_ip is None: | |
| 43 continue | |
| 5 | 44 |
| 45 # new pi may fail with 'Unable to access interface: Protocol not supported'. reboot fixes. | |
| 46 | |
| 47 priv_key_lines = host.get_fact(FindInFile, path=f'/etc/wireguard/{wireguard_interface}.conf', pattern=r'PrivateKey.*') | |
| 48 if not priv_key_lines: | |
| 49 priv_key = subprocess.check_output(['wg', 'genkey']).strip().decode('ascii') | |
| 50 else: | |
| 51 priv_key = priv_key_lines[0].split(' = ')[1] | |
| 52 | |
| 53 pub_key = subprocess.check_output(['wg', 'pubkey'], input=priv_key.encode('ascii')).strip().decode('ascii') | |
| 115 | 54 # todo: if this was new, it should be added to a file of pubkeys that |
| 55 # peer_block can refer to. meanwhile, edit the template. | |
| 5 | 56 |
| 57 files.template( | |
| 12 | 58 src=f'templates/wireguard/{wireguard_interface}.conf.j2', |
| 5 | 59 dest=f'/etc/wireguard/{wireguard_interface}.conf', |
| 60 mode='600', | |
| 61 wireguard_ip=wireguard_ip, | |
| 62 priv_key=priv_key, | |
| 63 peer_block=peer_block, | |
| 64 ) | |
| 65 svc = f'wg-quick@{wireguard_interface}.service' | |
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66 |
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67 files.template(src='templates/wireguard/wg.service.j2', |
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68 dest=f'/etc/systemd/system/{svc}', |
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69 wireguard_interface=wireguard_interface) |
| 272 | 70 systemd.service(service=svc, enabled=True, restarted=True, daemon_reload=True) |
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71 |
| 9 | 72 systemd.service(service=svc, daemon_reload=True, restarted=True, enabled=True) |
| 71 | 73 |
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74 # if host.name == 'bang': |
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drewp@bigasterisk.com
parents:
89
diff
changeset
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75 # systemd.service(service=f'dnsmasq_10.5', enabled=True, restarted=True, daemon_reload=True) |