Docker is similar to the following technologies:-
What Docker is not like are as follows:-
What docker features are sort of like those that are shared among other tools:-
Packaged application management
Network Overlays (not to be confused with virtual networks)
storage overlays (not to be confused with storage virtualization)
If you wish to learn docker and have a career in it then you must take up the following Docker Training Course. I am also mentioning a video tutorial for you which you must watch to learn all the basic concepts of Docker. .