Can I leave it running forever? How much memory does it consume?

[frkr]

The idea here is to leave running the "container", and know exactly how much memory it will spend.

Because I believe it should spend zero memory, since it is native.

[dcantah]

Thanks for the discussion! Are you essentially looking for how much overhead each container has (so the amount of memory outside of how much the workload actually running IN the container may consume)?

[jeff-h]

Not sure what the original question was looking for, but I would love to know the answer you mentioned, @dcantah. Really I'd like to compare, say, nginx:alpine with nginx running from Homebrew. Can I identify which processes are supporting the container and just monitor their usage in Activity Monitor? Could you tell me what to look for, or can container report this total usage (including the container itself, and not just what's running in it)?