This will build a container and copy the configset directories into the image as a configset. This is built off of the stock solr docker image. You can use the configset to pre-populate a core using the solr docker image command "solr-precreate" (see https://github.com/docker-solr/docker-solr-examples/tree/master/custom-configset)
This image can be used to create cores from many configsets
There is an included Jenkinsfile that will configure a jenkins job in an appropriately configured jenkins setup.
The included docker-compose.yml should bring up a container with the correct config, and can be used as an example for production. There are commented out commands to allow you to select which core you'd like to create when the container starts.