dasbh opened a new pull request #10560: FLINK-15174 added certificate pinning for SSL mutual auth to further protect cluster URL: https://github.com/apache/flink/pull/10560 …protect the cluster when certificates are issued by public CA ## What is the purpose of the change *Allow the operator to specify the certificate fingerprint to further protect the cluster allowing only specific certificate* ## Brief change log *(for example:)* - *Conditionally replace default TrustMangerFactory with FingerprintTrustManagerFactory* - *For Akka use custom ssl-engine-provider to plug FingerprintTrustManagerFactory* - *Added tests to cover the changes* ## Verifying this change This change added tests and can be verified as follows: *(example:)* - *Added unit test for SSLUtils* - *Added unit test for AkkaUtils* - *Extended NettyClientServerSslTest for SSL pinning* - *Extended RestServerEndpointITCase for SSL pinning* ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): no - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no - The serializers: no - The runtime per-record code paths (performance sensitive): don't know - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: don't know - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? yes - If yes, how is the feature documented? documented
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