[BUG] OpenSearch Python Client Connection SSL Error

[lijie123bes]

Describe the bug

I tried connecting to opensearch using python client but getting SSL Error. OpenSearch Version: 2.0.1 Python Version:3.6 public IP of the opensearch host: 10.83.5.67

Related component

Other

To Reproduce

Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/usr/lib/python3.6/site-packages/urllib3/connectionpool.py", line 343, in _make_request
    self._validate_conn(conn)
  File "/usr/lib/python3.6/site-packages/urllib3/connectionpool.py", line 839, in _validate_conn
    conn.connect()
  File "/usr/lib/python3.6/site-packages/urllib3/connection.py", line 358, in connect
    ssl_context=context)
  File "/usr/lib/python3.6/site-packages/urllib3/util/ssl_.py", line 367, in ssl_wrap_socket
    return context.wrap_socket(sock)
  File "/usr/lib64/python3.6/ssl.py", line 365, in wrap_socket
    _context=self, _session=session)
  File "/usr/lib64/python3.6/ssl.py", line 776, in __init__
    self.do_handshake()
  File "/usr/lib64/python3.6/ssl.py", line 1036, in do_handshake
    self._sslobj.do_handshake()
  File "/usr/lib64/python3.6/ssl.py", line 648, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/opensearchpy/connection/http_urllib3.py", line 250, in perform_request
    method, url, body, retries=Retry(False), headers=request_headers, **kw
  File "/usr/lib/python3.6/site-packages/urllib3/connectionpool.py", line 638, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/usr/lib/python3.6/site-packages/urllib3/util/retry.py", line 344, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "/usr/lib/python3.6/site-packages/urllib3/packages/six.py", line 692, in reraise
    raise value.with_traceback(tb)
  File "/usr/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/usr/lib/python3.6/site-packages/urllib3/connectionpool.py", line 343, in _make_request
    self._validate_conn(conn)
  File "/usr/lib/python3.6/site-packages/urllib3/connectionpool.py", line 839, in _validate_conn
    conn.connect()
  File "/usr/lib/python3.6/site-packages/urllib3/connection.py", line 358, in connect
    ssl_context=context)
  File "/usr/lib/python3.6/site-packages/urllib3/util/ssl_.py", line 367, in ssl_wrap_socket
    return context.wrap_socket(sock)
  File "/usr/lib64/python3.6/ssl.py", line 365, in wrap_socket
    _context=self, _session=session)
  File "/usr/lib64/python3.6/ssl.py", line 776, in __init__
    self.do_handshake()
  File "/usr/lib64/python3.6/ssl.py", line 1036, in do_handshake
    self._sslobj.do_handshake()
  File "/usr/lib64/python3.6/ssl.py", line 648, in do_handshake
    self._sslobj.do_handshake()
urllib3.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "ospy4.py", line 31, in <module>
    response = client.indices.create(index_name, body=index_body)
  File "/usr/local/lib/python3.6/site-packages/opensearchpy/client/utils.py", line 177, in _wrapped
    return func(*args, params=params, headers=headers, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/opensearchpy/client/indices.py", line 125, in create
    "PUT", _make_path(index), params=params, headers=headers, body=body
  File "/usr/local/lib/python3.6/site-packages/opensearchpy/transport.py", line 405, in perform_request
    raise e
  File "/usr/local/lib/python3.6/site-packages/opensearchpy/transport.py", line 375, in perform_request
    timeout=timeout,
  File "/usr/local/lib/python3.6/site-packages/opensearchpy/connection/http_urllib3.py", line 261, in perform_request
    raise SSLError("N/A", str(e), e)
opensearchpy.exceptions.SSLError: ConnectionError([SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)) caused by: SSLError([SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897))

Expected behavior

connect using python client

Additional Details

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Host/Environment (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[dblock]

Does your OpenSearch host have valid certs or is it a localhost installation? If it's the latter, follow the guide and add verify_certs = False.

client = OpenSearch(
    ...
    use_ssl = True,
    verify_certs = False
)

I'll close this, but feel free to comment/reopen if this issue is not solved with the above.