* switch builder image to smaller "slim" debian base
* use built-in pyyaml
* skip various build checks to speed up compilation
* create user/group in target image directly
* Upgrade various build and doc links to https.
Where it wasn't possible to upgrade build-time dependencies to https,
I kept http in place but used hardcoded checksums or GPG keys to ensure
that artifacts fetched over http are verified properly.
* Switch to https://apache.org.
* Remove mysql database connector from container image
See discussion on `dev` mailing list from 2019-03
around [docker
build](http://mail-archives.apache.org/mod_mbox/druid-dev/201903.mbox/browser)
Remove the mysql database connector from the container
image in favour of solely the postgresql connector.
Instructions are present in distribution/docker/README.md
for someone to re-add if they need.
Signed-off-by: Don Bowman <don@agilicus.com>
* Add sample Dockerfile for mysql using pre-built upstream
Rui Chen
Chi Cao Minh
Xavier Léauté
Gian Merlino
Don Bowman