Docker: Combine multiple images

Question

Is it possible with Docker to combine two images into one?

Like this here:

genericA --
            \\
             ---> specificAB
            /
g         


        

Answer 1

If you do docker commit, it is not handy to see what commands were used in order to build your container, you have to issue a docker history image

If you have a Dockerfile, just look at it and you see how it was built and what it contains.

Docker commit is 'by hand', so prone to errors, docker build using a Dockerfile that works is much better.