[stormbrew]

What resources are you concerned about being consumed?

- There will only ever be one running kernel with docker.

- The base filesystem layer, if identically hashed, will be shared as an overlay filesystem.

- The memory footprint of whatever each container runs (which will generally not be a full from runlevel0 system) will not be shared, except in the sense that binaries loaded into ram from the same overlay filesystem will have some of their disk pages shared.

[kosinus]

In practice, the base layers update often, and not all apps will be running from the same version.

[stormbrew]

That's true, but it is something that is potentially within your control as well.