I have explained Docker security best practices in this post. The highlights are Docker security for Containers.
Docker engine architecture has four elements. These contribute to run containers, which in turn help you take less time for porting. You can find more here.
Docker engine tricky interview questions added in this post. These are useful for interviews and project.
Docker is an open standards platform, and it is shippable to any device. Create once use that image to develop your applications. Useful for legacy programmers.
Docker works on Container concept. The Jenkins works on Pipe Line concept. Both the tools have some differences. The list of differences useful for interviews as well as for projects.