Question

You maintain a docker-compose.yml file that defines a web service. During a load test, you need to run three instances of the 'web' service without editing the compose file. Which command starts the stack with three replicas of the web service?

Accepted Answer

docker compose up -d --scale web=3

Answer

docker compose up -d --replicas web=3

Answer

docker compose run web --count 3

Answer

docker compose scale --up web 3