Add solr image with cloud mode for tugboat.

[apotek]

Description

This sets up a docker container that enables solrcloud mode for use in Tugboat.

To use this be sure to either:

Run solr zk cp file:/var/solr/data/security.json zk:/security.json -z localhost:9983 in the init phase of the service, or
Run /opt/solr/docker/scripts/zkauth.sh

Motivation / Context

The default TugboatQA docker image does not support solrcloud mode, and, once the container is running, it's very hard to configure it for solrcloud mode while still keeping intact the service monitoring and service invocations that are the preferred way for Tugboat to work.

Testing Instructions / How This Has Been Tested

cd services/solr && docker build -t solrcloud .
docker run solrcloud
docker exec -it <imageid> bash
/opt/solr/docker/scripts/zkauth.sh

Screenshots

Documentation

[agarzola]

I made this branch a draft, since the work from which this effort originated is being put on hold.

[apotek]

We don't need these COMPOSER env vars since there is no code checkout on this service.