Kubernetes supports multiple ways of running containers, Docker being the most common, and the most convenient. In this book, we will use Docker to help us create images that we will run within Kubernetes.
You can see what version of Docker you have installed and verify it is operational by running the following command:
docker version
Like kubectl, it will report the docker client version as well as the server version, and your output may look something like the following:
Client: Version: 17.09.0-ce API version: 1.32 Go version: go1.8.3 Git commit: afdb6d4 Built: Tue Sep 26 22:40:09 2017 OS/Arch: darwin/amd64
Server: Version: 17.09.0-ce API version: 1.32 (minimum version 1.12) Go version: go1.8.3 Git commit: afdb6d4 Built: ...
