What is the method of rapid expansion of Docker

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1. Command mode

Run the nginx service in the created Swarm cluster and use the-- replicas parameter to specify the number of replicas to start.

Docker service create-- replicas 3-p 80:80-- name nginx nginx:latest

Or

Docker service create-p 80:80-- name nginx nginx:latestdocker service scale nginx=3docker service ls # check the copy 2. Portainer mode

You can use portainer to create a service on the web interface and specify the number of copies, and you can dynamically increase or decrease the number of copies at any time.

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