Solving all the aforementioned problems is a huge pain. I'm sure you have better things to do than to worry about them. That's where baseimage-docker jumps in.
-Baseimage-docker is a special Docker image that is configured for correct use within Docker containers. It is Ubuntu, plus modifications for Docker-friendliness. Every single of the aforementioned problem is taken care of for you.
+Baseimage-docker is a special Docker image that is configured for correct use within Docker containers. It is Ubuntu, plus modifications for Docker-friendliness. Every single one of the aforementioned problem's are taken care of for you.
You can use it as a base for your own Docker images. That means it's available for pulling from the Docker registry!