How to Deploy a Service to a Docker Swarm Cluster

Опубликовано: 29 Сентябрь 2024
на канале: How To Make Tech Work from TechRepublic

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Jack Wallen shows you how to deploy a service to a Docker Swarm cluster, so you can scale those apps up and down.

Interested in How to Deploy a Service to a Docker Swarm Cluster? Check out the step-by-step guide at TechRepublic: https://www.techrepublic.com/article/...

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EDITOR'S NOTE: This content was originally published March 2023 on TechRepublic. This information may be outdated depending on time of viewing.

Footage courtesy of TechRepublic.

Commands:

Deploy an NGINX service:
docker service create --name nginx_test nginx

Check the status of the service, issue the command:
docker service ls

Deploy that service to all three nodes:
docker service create --replicas 3 --name nginx3nodes nginx

Verify the 3-node scale, issue the command:
docker service ls

Scale down that service to 2 cluster nodes with the command:
docker service scale nginx3nodes=2

Check the status with:
docker service ls

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