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1 import subprocess
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2 import requests
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3 import tempfile
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4
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5 # this would be nice to write a hosts file for dhcp so it gives better names to
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6 # stuff like webcams, but it needs lanscape to be up.
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7
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8 def prepare_dhcp_hosts():
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9 lanscape_ip = subprocess.check_output([
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10 'kubectl',
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11 'get',
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12 'svc',
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13 'lanscape',
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14 "-o=jsonpath={.spec.clusterIP}",
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15 ],
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16 encoding='ascii')
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17 url = f'http://{lanscape_ip}/dnsConfig'
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18 resp = requests.get(url)
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19 resp.raise_for_status()
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20 lanscape_config = resp.json()
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21
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22 dhcp_hosts = tempfile.NamedTemporaryFile(mode='wt', encoding='ascii')
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23 dhcp_hosts.write("# written by pyinfra\n\n")
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24 for row in lanscape_config['dhcp_table']:
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25 dhcp_hosts.write(f'{row["mac"]},{row["hostname"]},{row["ip"]},24h\n')
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26 dhcp_hosts.flush()
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27 return dhcp_hosts |
