[jira] [Created] (ARROW-5643) Add ability to override hostname checking

["David Li (JIRA)" <ji...@apache.org>]

David Li created ARROW-5643:
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             Summary: Add ability to override hostname checking
                 Key: ARROW-5643
                 URL: https://issues.apache.org/jira/browse/ARROW-5643
             Project: Apache Arrow
          Issue Type: Improvement
          Components: FlightRPC
            Reporter: David Li
            Assignee: David Li
             Fix For: 0.14.0


We should add the ability to override hostname checks, so you can connect to localhost over TLS but still verify that the certificate is for some other domain.

Example: when deploying on Kubernetes with headless services, clients connect directly to backend services and do load balancing themselves. Thus all instances of an application must present a certificate for the same hostname. To do health checks in such an environment, you can't connect to the TLS hostname (which may resolve to a different instance); you need to connect to localhost, and override the hostname check.



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