Maybe, instead of adding a checkbox, we could add an additional option inside the filter by resource dropdown:

We could have All resources | Current (or selected) resource | Remaining options....

I think it makes sense to add it to the existing resource dropdown 👍

I wonder if filtering given a specific resource is too limiting. For example, imagine this map:

root
  | container
  | | service
  | | | function

Selecting container or service would make the logs empty. I'm thinking that we could show the logs of child resources as well?