Kubernetes uses Docker images. Kubernetes is analagous to Docker Swarm which are container orchestration systems.

Kubernetes uses the Docker daemon as its container runtime. The docker daemon is running on all your hosts, and Kubernetes talks to the daemon api to start up containers.

user_request -> kubernetes api -> docker api on a host

You can drop in other runtimes, like using containerd directly.

Sorry bud, you've missed the point on that one.

You should check out what docker and kubernetes actually are if you'd like to discuss them. Kubernetes is a management engine that controls docker containers, replacing the docker developed solution.

Did you mean Docker Swarm is being replaced by Kubernetes? Kubernetes is not a replacement for Docker.

With any luck I will manage to dodge even Kubernetes straight to serverless!