* Add docker container for druid
This container is an 'omnibus' (since there is such a high
overlap with the various services). It includes all contrib
extension as well as the msql connector.
It is intended to be run as `docker run NAME SERVICE`
(e.g. docker run druid:latest broker)
* Add Apache license header
* Resolve issues from Pull Request review
* Add comments at top of script per PR comments
* Revert BUILDKIT. Not available everywhere.
* Don't set hostname, allow default (IP)
Some environments (e.g. Kubernetes Deployments) don't resolve
hostname to IP.
* Switch to amd64 glibc-based busybox from 32-bit uclibc
* Override service-specific configuration
* Replace MAINTAINER w/ LABEL
* Add mysql connector to application classpath
This works around issue #3770https://github.com/apache/incubator-druid/issues/3770
* Add docker-compose and sample environment
Signed-off-by: Don Bowman <don@agilicus.com>