[GitHub] [druid] clintropolis commented on a change in pull request #11167: fix docker volume permissions

[GitBox <gi...@apache.org>]

clintropolis commented on a change in pull request #11167:
URL: https://github.com/apache/druid/pull/11167#discussion_r636696197



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File path: distribution/docker/Dockerfile
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@@ -47,12 +47,13 @@ RUN ["/busybox/busybox", "--install", "/bin"]
 
 RUN addgroup -S -g 1000 druid \
  && adduser -S -u 1000 -D -H -h /opt/druid -s /bin/sh -g '' -G druid druid \
- && mkdir -p /opt/druid/var \
- && chown -R druid:druid /opt \
- && chmod 775 /opt/druid/var
+ && mkdir -p /opt
 
 COPY --chown=druid:druid --from=builder /opt /opt
 COPY distribution/docker/druid.sh /druid.sh
+RUN mkdir -p /opt/druid/var \

Review comment:
       Not sure this is the appropriate place for this question since this has been like it since the dockerfile was added afaict, but what is the reason for using the symlink for `/opt/druid`? Based on some comments around this issue/PR, and also looking at #11278, it seems to cause issues in some situations, so is it actually necessary for some reason or have some benefit?




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