How to safely update docker on Ubuntu 15.04
My droplet uses Ubuntu 15.04 and docker.io 1.5.0. The highest version of docker.io available is 1.6.2. I see various ways to update docker and am afraid to experiment for fear of losing my data container in the process. What is the best way to update to docker >= 1.7 and ensure containers are not lost?
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.