Server
Host OS
Hypervisor
Server
Host OS
Docker Engine
Guest
OS
Guest
OS
Guest
OS
Bins/Libs Bins/Libs Bins/Libs
App A
App A' App B
Bins/Libs
Bins/Libs
App
A
App
A'
App
B
App
B'
App
B
App
B'
App
B
App
B'
Containers are isolated,
but share OS and, where
appropriate,
bins/libraries
Bins/Libs
