AWS Neptune python gremlin certificate verify failed

Question

I have setup a ssh tunnel from local machine to neptune db and established a connection using endpoint. ssh -L 8182:***.us-east-1.neptune.amazonaws.com:8182 ****

I see gremlin console work fine and i can able to run graph query but When i attempt with the python code i see some certificate verify failed.

    try:
        graph = Graph()
        remoteConn = DriverRemoteConnection(
            'wss://localhost:8182/gremlin', 'g')
        g = graph.traversal().withRemote(remoteConn)
        result = g.V().has('customer', 'customerId', 12549).out().valueMap().toList()
        print(result)
        remoteConn.close()
        return result
    except Exception as e:

Exeception: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)

Please advice.

PFA Screenshot

Please edit your question to add the error as text rather than as a picture. — Ben2209, Feb 17 '21 at 12:12

score 4 · Accepted Answer · answered Feb 18 '21 at 16:46

If you are connecting to Neptune over SSH and using HTTPS, you need to add the name of the Neptune cluster to your local hosts file so that the SSL cert chain can be resolved. Then do not use localhost but the actual name of the cluster in your Python code. The hosts entry will look like this:

127.0.0.1 localhost my.cluster-xxxxxxxxxxxx.us-east-1.neptune.amazonaws.com

AWS Neptune python gremlin certificate verify failed

1 Answers1