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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2021/01/06 13:34:32 UTC

[GitHub] [flink] wangyang0918 opened a new pull request #14570: [FLINK-20798][k8s] Use namespaced kubernetes client when creating FlinkKubeClient

wangyang0918 opened a new pull request #14570:
URL: https://github.com/apache/flink/pull/14570

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## What is the purpose of the change

This PR tries to use a namespaced kubernetes client when creating FlinkKubeClient. After then, we will not need to always set the namespace when creating kubernetes resources(e.g. deployment, pods, configmap, watch, etc.).

For standalone cluster on K8s cluster with HA enabled, the HA related ConfigMaps could be created in a different namespace(configured via `kubernetes.namespace`).

## Brief change log

* Use namespaced kubernetes client when creating FlinkKubeClient

## Verifying this change

* This PR does not change any creating resource behavior, so all the unit tests, e2e tests should pass without changes.
* Manually test standalone Flink on K8s with HA enabled
* JobManager and TaskManager deployments are running in `flink` namespace. HA related ConfigMap are created in `default` namespace(other namespace could also work).

## Does this pull request potentially affect one of the following parts:

- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no** / don't know)
- Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (**yes** / no / don't know)
- The S3 file system connector: (yes / **no** / don't know)

## Documentation

- Does this pull request introduce a new feature? (yes / **no**)
- If yes, how is the feature documented? (**not applicable** / docs / JavaDocs / not documented)

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