Docker 101 : Docker images - Overriding ENTRYPOINT and CMD in a Dockerfile -

CMD and ENTRYPOINT when used together in a Dockerfile help us pass a program name (command) and arguments to the image.
The ENTRYPOINT is interpreted as the command and The CMD instruction as its argument:


We could have more than one argument:

We can override the above arguments by passing our new argument(s) to the "docker run" command as below:

Overriding the "ENTRYPOINT" and "CMD" in Kubernetes:

We can override the ENTRYPOINT and CMD in a kubernetes Yaml config file, in the container section of a pod using the command and args variables as you can see below:


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