ferenc-csaky opened a new pull request, #24303:
URL: https://github.com/apache/flink/pull/24303
## What is the purpose of the change
Makes it possible to upload `local://` artifacts in K8s Application Mode to
remote DFS, so combined with `Artifact Fetching`, it is not necessary to bundle
all Flink job deps to the Docker image.
Upload handles the job JAR and any additional local artifact that is present
in the `user.artifacts.artifact-list` config. The
`user.artifacts.artifact-list` can contain both local and remote artifact
mixed, former will be uploaded, latter will remain unchanged and everything
will be fetched on the JM pod.
### Example
```bash
# Without additional artifacts.
$ ./bin/flink run-application \
--target kubernetes-application \
-Dkubernetes.cluster-id=my-first-application-cluster \
-Dkubernetes.container.image=custom-image-name \
-Dkubernetes.artifacts.local-upload-enabled=true \
-Dkubernetes.artifacts.local-upload-target=s3://my-bucket/ \
local:///tmp/my-flink-job.jar
# With additional artifacts.
$ ./bin/flink run-application \
--target kubernetes-application \
-Dkubernetes.cluster-id=my-first-application-cluster \
-Dkubernetes.container.image=custom-image-name \
-Dkubernetes.artifacts.local-upload-enabled=true \
-Dkubernetes.artifacts.local-upload-target=s3://my-bucket/ \
-Duser.artifacts.artifact-list=local:///tmp/my-flink-udf1.jar\;s3://my-bucket/my-flink-udf2.jar
\
local:///tmp/my-flink-job.jar
```
## Brief change log
- Added new `KubernetesConfigOptions` for uploading.
- Introduced `KubernetesArtifactUploader` and a default impl, which handles
the uploading.
- Wired in the uploading to `KubernetesClusterDescriptor`.
## Verifying this change
- Added unit tests in `DefaultKubernetesArtifactUploaderTest`.
- Verified the change manually with Minikube and Minio.
## 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: yes
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? yes
- If yes, how is the feature documented? docs
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