fix integration tests

[clintropolis]

Looks like openjdk:8-slim image updated from debian buster to bullseye, which seems not cool and all the integration tests are failing with an error of the form:

Step 15/43 : RUN find /var/lib/mysql -type f -exec touch {} \; && /etc/init.d/mysql start       && echo "CREATE USER 'druid'@'%' IDENTIFIED BY 'diurd'; GRANT ALL ON druid.* TO 'druid'@'%'; CREATE database druid DEFAULT CHARACTER SET utf8mb4;" | mysql -u root       && /etc/init.d/mysql stop
 ---> Running in 98c01deea008
/bin/sh: 1: /etc/init.d/mysql: not found

For now, specifying buster as it is known to work, though at some point we should probably try to figure out how to upgrade to the newer image.

[abhishekrb19]

@clintropolis, I see an occurrence of the same image in this distribution Dockerfile. Should this need to be updated as well?

[clintropolis]

So, the docker image seems to work ok for me without any changes, however the k8s integration tests are still failing, so it might be related somehow, I'm not certain if maven:3-jdk-11-slim is actually related to the openjdk slim images (the maven dockerfile looks like it downloads openjdk itself)

Removing intermediate container 249c6ec65c11
 ---> 4cab348af9bf
Step 8/21 : RUN VERSION=$(mvn -B -q org.apache.maven.plugins:maven-help-plugin:3.2.0:evaluate       -Dexpression=project.version -DforceStdout=true     )  && tar -zxf ./distribution/target/apache-druid-${VERSION}-bin.tar.gz -C /opt  && mv /opt/apache-druid-${VERSION} /opt/druid
 ---> Running in ef1f63133a73
ls: cannot access '/usr/bin/mvn': Operation not permitted
Error: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher
Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.classworlds.launcher.Launcher
The command '/bin/sh -c VERSION=$(mvn -B -q org.apache.maven.plugins:maven-help-plugin:3.2.0:evaluate       -Dexpression=project.version -DforceStdout=true     )  && tar -zxf ./distribution/target/apache-druid-${VERSION}-bin.tar.gz -C /opt  && mv /opt/apache-druid-${VERSION} /opt/druid' returned a non-zero code: 1
[ERROR] Command execution failed.

I'm also having a bit of trouble running the integration test locally to troubleshoot the issue, the scripts seem to expect Linux.

[clintropolis]

Oops, i was looking at the wrong dockerfile, it is using the openjdk base image https://github.com/carlossg/docker-maven/blob/0a7b1ef030687a5d95ce3e7567a4c279ab87dc81/openjdk-11-slim/Dockerfile#L1

That said, there doesn't seem to be any buster version of this image, related carlossg/docker-maven#221 I think.

At some point we need to like work out whatever the problem is so we can use the newer image.

[maytasm]

I saw a comment on the linked issue that you can pin to maven:3.8.1-jdk-11-slim to solve this issue

[clintropolis]

@clintropolis, I see an occurrence of the same image in this distribution Dockerfile. Should this need to be updated as well?

I'm not sure that one matters since it doesn't run a MySQL server internally, but I will test it out to double check.