docs/compose/reference/scale.md

description	keywords	title	notoc
Sets the number of containers to run for a service.	fig, composition, compose, docker, orchestration, cli, scale	docker-compose scale	true

Usage: scale [SERVICE=NUM...]

Sets the number of containers to run for a service.

Numbers are specified as arguments in the form service=num. For example:

docker-compose scale web=2 worker=3

Tip: Alternatively, in Compose file version 3.x, you can specify replicas under deploy as part of the service configuration for Swarm mode.