I've spin up N instance of an app service using a Compose file.
Let's N=4:
$ docker-compose up --detach --scale app=4 app
Now I'd like to run more of them, as if I had started them all at once.
Let's say I want to start 6 more instances on-the-fly, so that I end up having 10 instances running, as if I launched this command at the very first place:
$ docker-compose up --detach --scale app=10 app
How could I achieve that?
I tested launching 6 mores this way:
$ docker-compose up --detach --scale app=6 app
But this seems to recreate the former, interrupting what they were working on.