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I have node.js application built using Dockerfile that defines:
CMD node dist/bin/index.js
I'd like to "append" a parameter to the command as it is defined in Dockerfile, i.e. I want to execute the program as node dist/bin/index.js foo.
In docker land I am able to achieve this via:
docker build --tag test .
docker run test foo
In 
kubernetes I cannot use command because that will override the ENTRYPOINT. I cannot use args because that will override the cmd defined in the Dockerfile. It appears that my only option is:
cmd: ["node", "dist/bin/index.js", "foo"]
Is there a way to append an argument to a container command without redefining the entire Docker CMD definition?
335
When we launch our Docker container, we can pass environment variables as key-value pairs directly into the command line using the parameter –env (or its short form -e). As can be seen, the Docker container correctly interprets the variable VARIABLE1.
There are many situations in which combining CMD and ENTRYPOINT would be the best solution for your Docker container. In such cases, the executable is defined with ENTRYPOINT, while CMD specifies the default parameter. Note: If you are using both instructions, make sure to keep them in exec form.
Note that pressing `Ctrl+C` when the terminal is attached to a container output causes the container to shut down. Use `Ctrl+PQ` in order to detach the terminal from container output.
No way to append. You can either set the command: or args: on container.spec. You can learn more about how to override CMD/ENTRYPOINT here: https://kubernetes.io/docs/concepts/configuration/container-command-args/
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