gaborgsomogyi opened a new pull request, #21339:
URL: https://github.com/apache/flink/pull/21339
## What is the purpose of the change
YARN e2e tests are using a roughly 7 years old KDC docker image which is
hard to maintain. In this PR I've created a `Dockerfile` to build KDC
on-the-fly.
## Brief change log
* Restructured the docker-compose part (now it's possible to use
`docker-compose build`)
* Added `kdc/Dockerfile` to build it locally
* Moved the original docker files/configs into hadoop directory
* Made `hadoop/Dockerfile` hadoop version agnostic
* Modified `README.md` for the docker images to reflect actual stand
## Verifying this change
Existing YARN e2e tests.
## 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? no
- If yes, how is the feature documented? not applicable
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