Is the docker machine running on the runner manager

[lmilbaum]

I'd like to understand the current architecture so that I can contribute to this project.
Where is the docker machine running? The README diagrams are a bit confusing.

[kayman-mk]

Appreciated!

The docker+machine executor creates a new EC2 instance, installs Docker and executes the job within a container. So it is always a separate machine.

As far as I remember, the shell and docker executor run on the same machine as the Runner.

[lmilbaum]

Thanks for the clarification