xccui opened a new pull request, #609:
URL: https://github.com/apache/flink-kubernetes-operator/pull/609
## What is the purpose of the change
Introduce postStart hook to allow users to initialize the main container
with some commands. For instance, users can download flink-fs-s3-hadoop plugin
to enable using a JAR from s3 in session mode. There's no need to build their
own docker images.
## Brief change log
* Added a helm value `postStart.execCommand` that allows users to specify a
list of commands for postStart hook of the main container.
* Some doc changes.
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
## 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 changes to the `CustomResourceDescriptors`:
(no)
- Core observer or reconciler logic that is regularly executed: (no)
## Documentation
- Does this pull request introduce a new feature? (yes)
- If yes, how is the feature documented? (docs)
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