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Deploy a service to the swarm ​

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Deploy a service to the swarm ​

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After you create a swarm, you can deploy a service to the swarm. For this tutorial, you also added worker nodes, but that is not a requirement to deploy a service.

  1. Open a terminal and ssh into the machine where you run your manager node. For example, the tutorial uses a machine named manager1.

  2. Run the following command:

console
$ docker service create --replicas 1 --name helloworld alpine ping docker.com

9uk4639qpg7npwf3fn2aasksr
  • The docker service create command creates the service.
  • The --name flag names the service helloworld.
  • The --replicas flag specifies the desired state of 1 running instance.
  • The arguments alpine ping docker.com define the service as an Alpine Linux container that executes the command ping docker.com.
  1. Run docker service ls to see the list of running services:
console
$ docker service ls

ID            NAME        SCALE  IMAGE   COMMAND
9uk4639qpg7n  helloworld  1/1    alpine  ping docker.com

Next steps ​

Now you're ready to inspect the service.

Inspect the service