Add/update a PowerDNS A record via requests

pdns-via-requests.py

import json
import logging


def format_dns_rrset(
    record_name,
    record_values,
    domain=DEFAULT_DOMAIN,
    operation="REPLACE",
    ttl=86400,
    record_type="A",
):
    """
    Format a DNS rrset from the supplied record name & values.
    """
    return {
        "name": f"{record_name}.{domain}.",
        "type": record_type,
        "ttl": ttl,
        "changetype": operation,
        "records": [
            {"content": record_value, "disabled": False}
            for record_value in record_values
        ],
    }


def update_dns_a_record(
    pdns_session,
    device_name,
    ip_address,
    ttl=86400,
    pdns_host=POWERDNS_HOST,
    domain=DEFAULT_DOMAIN,
):
    """
    Create a DNS A record for the provided name.
    """
    endpoint = f"https://{pdns_host}/api/v1/servers/localhost/zones/{domain}."
    rrset = format_dns_rrset(
        record_name=device_name, record_values=[ip_address], domain=domain, ttl=ttl,
    )
    logging.debug("rrset is %s", rrset)
    rrsets = {"rrsets": [rrset]}
    payload = json.dumps(rrsets)
    logging.debug("payload is %s", payload)
    result = pdns_session.patch(url=endpoint, data=payload)
    return result