Add cruise control image

[solsson]

For Yolean/kubernetes-kafka#218

[solsson]

It's quite possible that we need to revert to Java 8. Building with JDK 11 failed. Let's see.

[solsson]

I fail to build in the updated Docker Hub. With these settings I get a path error. Strange.

Building in Docker Cloud's infrastructure...
Cloning into '.'...
Warning: Permanently added the RSA host key for IP address '192.30.253.113' to the list of known hosts.
Reset branch 'master'
Your branch is up-to-date with 'origin/master'.
Executing build hook...
+ . ./hooks/env
++ '[' -n master ']'
++ '[' -n master ']'
++ '[' -n master ']'
++ '[' -n 6eea4609ffcb86fc513751b56cce6342b4fac0ab ']'
++ [[ m =~ [0-9] ]]
++ '[' master = master ']'
++ SOURCE_BRANCH=latest
++ '[' -n git ']'
++ '[' -n Dockerfile ']'
++ '[' -n index.docker.io/solsson/kafka-cruise-control:latest ']'
+ docker build --build-arg SOURCE_REF=6eea4609ffcb86fc513751b56cce6342b4fac0ab --build-arg DOCKERFILE_PATH=Dockerfile --build-arg SOURCE_TYPE=git -t index.docker.io/solsson/kafka-cruise-control:latest Dockerfile
unable to prepare context: context must be a directory: /src/bbcyemadgbkrkngumc76kda/cruise-control/Dockerfile
build hook failed! (1)

[solsson]

Oddly I had to configure subfolder build like this: