| No offense inferred! It is not intended that users will download this baseimage (although it is a supported configuration, you can use FROM phusion/baseimage) but, that this will be an image definition that users can easily rebuild and build off of it. Step one in Docker competency is "do you know exactly where your image comes from, and can you rebuild it from scratch without trusting that some rando on the internet didn't put bad stuff in there?" Step two is "ok, do you really actually build them, though" This image has traditionally been based on LTS ubuntu, and if you look at the CentOS derived version that hasn't been updated since 2014 (pokle/centos-baseimage), they chose not to include ca-certificates or hardly anything else. (I'm assuming that tianon/centos:6.5 does not install ca-certificates by default...) I'm sure many people use FROM phusion/baseimage but personally, even as a maintainer, I don't. I'd change the image source to whatever upstream of Ubuntu I'm preferring today, and probably build that from scratch too. The value in this image is not that it comes pre-built, it's that the build is tested and supported. /side tangent |