[GitHub] [spark-docker] Yikun commented on pull request #43: [SPARK-43370] Switch spark user only when run driver and executor

["Yikun (via GitHub)" <gi...@apache.org>]

Yikun commented on PR #43:
URL: https://github.com/apache/spark-docker/pull/43#issuecomment-1563738824

   1. `spark` as default USER
   * Run directly: `spark` user will be used when enter docker image
   ```
   $ docker run -ti spark-test bash
   spark@afa78af05cf8:/opt/spark/work-dir$
   ```
   * Base image: If users want to build image based on base image, users will have to switch `root` to install extra apt pkg and then switch back to `spark`.
   * In previous docker (v3.3.0), `docker run -ti apache/spark:v3.3.0 bash`, `185` user will be used.
   * K8s: we pin to `spark` user.
   
   
   2. `root` as default USER
   * Run directly: `root` user will be used when enter docker image
   ```
   $ docker run -ti spark-test bash
   root@afa78af05cf8:/opt/spark/work-dir$
   ```
   * Base image: If users want to build image based on base image, they can install directly
   * K8s: we pin to `spark` user.
   
   So, looks like root user is more convenient (but bring some behavior change compare to previous `apache/spark` image). Wait for feedback from DOI.


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