Migrate the docker image building and testing from the https://github.com/docker-solr/docker-solr repo into Solr. This is only applicable for 9.0+. Backporting Docker functionality to Solr 8x will be handled separately.
This is meant to be a first pass migration and not solve all issues. The goal is:
- Docker images be built in a flexible way that will allow for release and local builds to share the same business logic
- Building and testing should be integrated with the gradle build
- Maintain current usage documentation in their current form, but documentation on building images should go in the ref-guide. The usage documentation will be migrated separately.