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netbox-dns.py
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netbox-dns.py
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#!/usr/bin/env python3
import logging
import sys
from typing import Generator
from gql import gql
from common import IPAMHost, get_nb_client
logging.basicConfig(level=logging.WARNING)
log = logging.getLogger()
client = get_nb_client()
def create_zone(leases) -> Generator[IPAMHost, None, None]:
for lease in leases:
hostname = lease.clean_hostname.lower()
fqdn = f"{hostname}.generalprogramming.org"
if lease.ipv6:
yield f"address=/{fqdn}/{lease.ipv6}"
if lease.ipv4:
reverse_arpa = ".".join(lease.ipv4.split(".")[::-1]) + ".in-addr.arpa"
yield f"address=/{fqdn}/{lease.ipv4}"
yield f"ptr-record={reverse_arpa},{fqdn}"
if lease.ipmi_ip:
reverse_arpa = ".".join(lease.ipmi_ip.split(".")[::-1]) + ".in-addr.arpa"
yield f"address=/ipmi.{fqdn}/{lease.ipmi_ip}"
yield f"ptr-record={reverse_arpa},{fqdn}"
def non_static_host(hostname: str) -> bool:
result = False
if (
"-ap-" in hostname
or "-phone-" in hostname
or "-temp-" in hostname
or hostname.startswith("das-")
):
result = True
return result
query = gql(
"""
query {
device_list {
name
primary_ip4 {
address
}
primary_ip6 {
address
}
interfaces {
name
ip_addresses {
address
}
}
}
virtual_machine_list {
name
primary_ip4 {
address
}
primary_ip6 {
address
}
}
}
"""
)
if __name__ == "__main__":
leases = []
# Execute query and merge physical device + VM interfaces in one list.
result = client.execute(query)
hosts = result["device_list"] + result["virtual_machine_list"]
# Iterate through all interfaces.
for host in hosts:
host_name = host["name"]
# Ignore hosts that should not have static IPs.
if non_static_host(host_name):
continue
# Ignore interfaces without primary IPs.
if not host["primary_ip4"] and not host["primary_ip6"]:
print(host_name, "missing primary ip.", file=sys.stderr)
continue
# Try to get the IP.
ipv4 = (host.get("primary_ip4") or {}).get("address", "").split("/")[0]
ipv6 = (host.get("primary_ip6") or {}).get("address", "").split("/")[0]
# Get the IPMI IP address.
ipmi_ip = None
for interface in host.get("interfaces", []):
if interface["name"].lower() in [
"ipmi",
"idrac",
"ilo",
"drac",
"bmc",
"imm",
]:
if not interface["ip_addresses"]:
log.warn("No IPMI IP for %s", host_name)
continue
ipmi_ip = interface["ip_addresses"][0]["address"].split("/")[0]
break
# Create host dataclass.
leases.append(
IPAMHost(
hostname=host_name,
ipv4=ipv4,
ipv6=ipv6,
ipmi_ip=ipmi_ip,
)
)
for entry in create_zone(leases):
print(entry)