• This is in a Kubernetes pod.
  • Firstly we create a pod using the following image: docker run --name ubuntu-sleeper ubuntu-sleeper 10
  • Then we place that into a pod definition file: ``` apiVersion: v1 kind: Pod metadata: name: ubuntu-sleeper-pod spec: containers:
    • name: ubuntu-sleeper images: ubuntu-sleeper args: [“10”] ```
  • Then we create this with kubectl -f pod-definition.yml.
  • The above pod definition file looks like the following in a Docker image: 
    FROM Ubuntu
ENTRYPOINT ["sleep"]
CMD ["5"]
  • To change this further, in the Docker world the following is ran: 
    docker run --name ubuntu-sleeper \
   --entrypoint sleep2.0 ubuntu-sleeper 10
  • The same pod definition file as the above command looks like this: ``` apiVersion: v1 kind: Pod metadata: name: ubuntu-sleeper-pod spec: containers:
    • name: ubuntu-sleeper images: ubuntu-sleeper command: [“sleep2.0”] args: [“10”] ```
  • The command field corresponds to an ENTRYPOINT in docker.
  • The args field corresponds to the CMD field in docker.

Updated: