Where do docker images’ new Files get saved to in GCP?

I want to create some docker images that generates text files. However, since images are pushed to Container Registry in GCP. I am not sure where the files will be generated to when I use kubectl run myImage. If I specify a path in the program, like ‘/usr/bin/myfiles’, would they be downloaded to the VM instance where I am typing “kubectl run myImage”? I think this is probably not the case.. What is the solution?

Ideally, I would like all the files to be in one place.
Thank you

Source: StackOverflow