Github user rvesse commented on a diff in the pull request:
https://github.com/apache/spark/pull/23017#discussion_r234146162
--- Diff:
resource-managers/kubernetes/docker/src/main/dockerfiles/spark/Dockerfile ---
@@ -53,5 +54,9 @@ COPY data /opt/spark/data
ENV SPARK_HOME /opt/spark
WORKDIR /opt/spark/work-dir
+RUN chmod g+w /opt/spark/work-dir
ENTRYPOINT [ "/opt/entrypoint.sh" ]
+
+# Specify the User that the actual main process will run as
+USER ${spark_uid}
--- End diff --
Done
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