Retrieve ENV values from container as Output params

[manju-rn]

As per the below, we can get the data of the file within the container as Output params. Can we also get the data of the ENV values which are in the container?

  - name: whalesay
    container:
      image: docker/whalesay:latest
      command: [sh, -c]
      args: ["echo -n hello world > /tmp/hello_world.txt"]  # generate the content of hello_world.txt
    outputs:
      parameters:
      - name: hello-param  # name of output parameter
        valueFrom:
          path: /tmp/hello_world.txt 

[manju-rn]

Closing this discussion since raised another one from the docs page

[agilgur5]

For posterity, that discussion is at #9476 (comment).

From my comment there:

Your container step would have to output [the environment variables] somewhere. Either to a file or stdout for example. Then they can be used as output parameters.