steveniemitz opened a new pull request, #21457: URL: https://github.com/apache/flink/pull/21457
## What is the purpose of the change This change allows users/operators to override the default SslContext configuration/creation with a custom implementation. For more advanced TLS deployments, the built-in flink configuration may not be sufficient. Additionally, a useful and intended side-effect of this is that SslContexts can be recreated if needed, rather than being only created once statically at startup. This allows things like hot-reloading key material if it changes at runtime. ## Brief change log - Add `security.ssl.internal.ssl-context-supplier` and `security.ssl.rest.ssl-context-supplier` configuration settings for internal and REST communication respectively. If either are set to a valid class implementing `Supplier<SslContext>`, it will be used to provide SslContext instances when required. ## Verifying this change This change added tests and can be verified as follows: - Added tests to SSLUtils that tests internal/rest and client/server variations of the suppliers. - Manually verified the change on cluster with multiple JobManagers and TaskManagers. ## 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): no - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? yes - If yes, how is the feature documented? docs -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org