Python - Sniff Options Attempt to match IP verse Certificate

Elastic Stack Elasticsearch
1

My ES setup has 3 master nodes, 5 data nodes and a couple ingest nodes. I'm trying to create an ES object with sniffing turned on.

import os
from elasticsearch import Elasticsearch

ES = Elasticsearch(os.environ.get("ES_HOST"),
                        ca_certs=os.environ.get("ES_CA_CERT_PATH"),
                        http_auth = (os.environ.get("ES_USERNAME"), os.environ.get("ES_PASSWORD")),
                        port = os.environ.get("ES_PORT"),
                        retry_on_timeout=True,
                        scheme="https",
                        timeout=30,
                        sniff_on_start=True,
                        sniff_on_connection_fail=True,
                        sniffer_timeout=60,
                        sniff_timeout=10
        )

This works fine when I remove the 4 sniffer options. With them added I get this error:

  File "/home/es/.local/lib/python3.8/site-packages/urllib3/connection.py", line 467, in connect
    _match_hostname(cert, self.assert_hostname or server_hostname)
  File "/home/es/.local/lib/python3.8/site-packages/urllib3/connection.py", line 540, in _match_hostname
    match_hostname(cert, asserted_hostname)
  File "/home/es/.local/lib/python3.8/site-packages/urllib3/util/ssl_match_hostname.py", line 150, in match_hostname
    raise CertificateError(
urllib3.util.ssl_match_hostname.CertificateError: hostname '10.10.10.10' doesn't match either of '*.test.domain', '*.test.net',

ES_HOSTS is set to the FQDN of the machine, not the IP. I would expect it to do this check verse the FQDN not the IP. Am I missing a certain type of DNS record?

PIP:

elastic-transport      7.16.0
elasticsearch          7.17.3
elasticsearch-dsl      7.4.0
urllib3                1.26.12
2

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