Title: Docker Exec
participant Docker
participant kata-runtime
participant virtcontainers
participant shim
participant hypervisor
participant agent
participant proxy

#Docker Exec
Docker->kata-runtime: exec
kata-runtime->virtcontainers: EnterContainer()
virtcontainers->agent: exec 
agent->virtcontainers: Process started in the container
virtcontainers->shim: start shim
shim->agent: ReadStdout()
shim->agent: ReadStderr()
shim->agent: WaitProcess()
virtcontainers->kata-runtime: End of EnterContainer()
kata-runtime-->Docker: End of exec
