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annotate net.py @ 34:d4fb38f13c79

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refactor dns and some other non-net setup
author drewp@bigasterisk.com
date Sat, 15 Jan 2022 15:40:22 -0800
parents 301dad3cdb7b
children 51c2f861764f
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7
b6fff51f8676 net.py setup. May not be safe on bang yet
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1 from pyinfra import host
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2 from pyinfra.operations import apt, files, server, systemd
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3
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4 is_wifi = host.name in ['frontdoor', 'living', 'plus']
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5
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6 if host.name in [
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7 'garage',
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8 'dash',
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9 'slash',
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10 'frontbed',
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11 'prime',
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12 ]:
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13 # previous version
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14 files.file(path='/etc/netplan/99-pyinfra-written.yaml', present=False)
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16 for search_dir in [
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17 # search path per `man systemd.network`:
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18 # /lib/systemd/network # These OS files are ok.
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19 '/usr/local/lib/systemd/network/', # Probably no such dir.
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20 '/run/systemd/network/', # Previous netplan attempts dumped in here.
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21 '/etc/systemd/network/', # I'm going to work in here.
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22 ]:
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23 files.sync(
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24 src="files/empty_dir/",
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25 dest=search_dir,
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26 delete=True,
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27 )
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28
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29 addr = host.host_data['addr']
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30 if addr.startswith('10.'):
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31 net = addr[:4]
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32 gateway = net + '.0.1'
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33 dns = gateway
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34 elif addr == '162.243.138.136':
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35 gateway = '162.243.138.1'
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36 dns = '10.5.0.1 8.8.8.8 8.8.4.4'
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37 else:
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38 raise ValueError(addr)
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39
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40 if is_wifi:
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41 files.put(src="secrets/wpa_supplicant.conf", dest="/etc/wpa_supplicant/wpa_supplicant.conf")
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42
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43 files.template(src="templates/house.network.j2",
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44 dest="/etc/systemd/network/99-house.network",
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45 mac=host.host_data['mac'],
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46 addr=addr,
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47 gateway=gateway,
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48 dns=dns)
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49 systemd.service(service='systemd-networkd.service', running=True, restarted=True)
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50
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51 # ns = '10.2.0.1'
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52 # if host.name == 'prime':
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53 # ns = '8.8.8.8'
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54 # elif host.name in ['slash']:
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55 # ns = '10.1.0.1'
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56 # files.template(src='templates/resolv.conf.j2', dest='/etc/resolv.conf', ns=ns)
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57
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58 if host.name == 'plus':
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59 apt.packages(packages=['network-manager'], present=True)
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60
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61 if host.name == 'bang':
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62 files.template(src='templates/bang_interfaces.j2', dest='/etc/network/interfaces', user='root', group='root', mode='644')
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63
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64 # Now using a HW router for this firewall. No incoming connections.
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65 # test connections from the outside:
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66 # http://www.t1shopper.com/tools/port-scanner/
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67 apt.packages(packages=['ufw'], present=False)
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68
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69 if host.name == 'prime':
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70 # using digitalocean network config:
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71 # https://cloud.digitalocean.com/networking/firewalls/f68899ae-1aac-4469-b379-59ce2bbc988f/droplets?i=7c5072
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72 apt.packages(packages=['ufw'], present=False)
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73
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74 files.line(name='shorter systemctl log window, for disk space',
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75 path='/etc/systemd/journald.conf',
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76 line='MaxFileSec',
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77 replace="MaxFileSec=7day")
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78
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79 for port in [80, 443]:
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80 files.template(src="templates/webforward.service.j2", dest=f"/etc/systemd/system/web_forward_{port}.service", port=port)
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81 systemd.service(service=f'web_forward_{port}', enabled=True, restarted=True)