Add Resource Distribution Pool support

[pavankumar2203]

This is to get / create /update Resource Distribution Pools on UltraDNS. ( Multiple A Records )

[sbarbett]

First off, I sincerely apologize that this request sat unacknowledged for so long. Your contribution was valuable, and I appreciate you taking the time to submit it.

While I’m no longer able to merge this code directly due to the project's changes over the years, I wanted to let you know that I’ve incorporated your feedback and code into the upcoming v2.2.5 release. I’ve extended it a bit to support additional parameters, including a description field, and I’ve also added a delete method for RD Pools.

Here’s the updated implementation:

    def _build_rd_rrset(self, rdata_info, ttl, owner_name, order, description):
        """Builds an RD Pool RRSet.
        
        :param rdata_info: List of record data for the records in the pool.
        :param ttl: The TTL value for the RRSet.
        :param owner_name: The owner name for the RRSet.
        :param order: The order in which rdata is served. Used for RD pools.
        :param description: A description for the RD pool. Defaults to owner_name if not provided.
        :return: A dictionary representing the RRSet.
        """
        profile = {
            "@context": "http://schemas.ultradns.com/RDPool.jsonschema",
            "order": order,
            "description": description if description is not None else owner_name
        }
        
        return {"ttl": ttl, "rdata": rdata_info, "profile": profile}

    def create_rd_pool(self, zone_name, owner_name, ttl, rdata_info, order="ROUND_ROBIN", ipv6=False, description=None):
        """Creates a new RD Pool.
        
        :param zone_name: The zone that contains the RRSet. The trailing dot is optional.
        :param owner_name: The owner name for the RRSet.
                          If no trailing dot is supplied, the owner_name is assumed to be relative (foo).
                          If a trailing dot is supplied, the owner name is assumed to be absolute (foo.zonename.com.)
        :param ttl: The TTL value for the RRSet.
        :param rdata_info: List of record data for the records in the pool.
                           Values are strings representing either IPv4 or IPv6 addresses.
        :param order: (Optional) The order in which rdata is served. Default is ROUND_ROBIN.
                      Valid options:
                        - ROUND_ROBIN
                        - FIXED
                        - RANDOM
        :param ipv6: (Optional) Boolean indicating whether to create an AAAA (True) or A (False) RD pool. Default is False.
        :param description: (Optional) A description for the RD pool. Defaults to owner_name if not provided.
        :return: API response from the POST request.
        """
        rtype = "AAAA" if ipv6 else "A"
        rrset = self._build_rd_rrset(rdata_info, ttl, owner_name, order, description)
        return self.rest_api_connection.post(
            f"/v1/zones/{zone_name}/rrsets/{rtype}/{owner_name}",
            json.dumps(rrset)
        )

    def edit_rd_pool(self, zone_name, owner_name, ttl, rdata_info, order="ROUND_ROBIN", ipv6=False, description=None):
        """Updates an existing RD Pool in the specified zone.
        
        :param zone_name: The zone that contains the RRSet. The trailing dot is optional.
        :param owner_name: The owner name for the RRSet.
                          If no trailing dot is supplied, the owner_name is assumed to be relative (foo).
                          If a trailing dot is supplied, the owner name is assumed to be absolute (foo.zonename.com.)
        :param ttl: The TTL value for the RRSet.
        :param rdata_info: List of record data for the records in the pool.
        :param order: (Optional) The order in which rdata is served. Default is ROUND_ROBIN.
        :param ipv6: (Optional) Boolean indicating whether to create an AAAA (True) or A (False) RD pool. Default is False.
        :param description: (Optional) A description for the RD pool. Defaults to owner_name if not provided.
        :return: API response from the PUT request.
        """
        rtype = "AAAA" if ipv6 else "A"
        rrset = self._build_rd_rrset(rdata_info, ttl, owner_name, order, description)
        return self.rest_api_connection.put(
            f"/v1/zones/{zone_name}/rrsets/{rtype}/{owner_name}",
            json.dumps(rrset)
        )

    def get_rd_pools(self, zone_name):
        """Retrieves an RD Pool in the specified zone.
        
        :param zone_name: The zone that contains the RRSet.
        :param owner_name: The owner name for the RRSet.
        :return: API response from the GET request.
        """
        return self.rest_api_connection.get(
            f"/v1/zones/{zone_name}/rrsets?q=kind:RD_POOLS"
        )

    def delete_rd_pool(self, zone_name, owner_name, ipv6=False):
        """Deletes an RD Pool in the specified zone.
        
        :param zone_name: The zone that contains the RRSet.
        :param owner_name: The owner name for the RRSet.
        :param ipv6: (Optional) Boolean indicating whether to delete an AAAA (True) or A (False) RD pool. Default is False.
        :return: API response from the DELETE request.
        """
        rtype = "AAAA" if ipv6 else "A"
        return self.rest_api_connection.delete(
            f"/v1/zones/{zone_name}/rrsets/{rtype}/{owner_name}"
        )

Your original PR helped shape these improvements. Thanks again.