--- description: Sets the number of containers to run for a service. keywords: fig, composition, compose, docker, orchestration, cli, scale title: docker-compose scale notoc: true --- > **Note**: This command is deprecated. Use the [up](up.md) command with the `--scale` flag instead. ``` 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](/compose/compose-file/index.md), you can specify [replicas](/compose/compose-file/index.md#replicas) under the [deploy](/compose/compose-file/index.md#deploy) key as part of a service configuration for [Swarm mode](/engine/swarm/). Note that the `deploy` key and its sub-options (including `replicas`) will only work with the `docker stack deploy` command, not `docker compose up` or `docker-compose run`.