The remaining steps in the tutorial don’t use the
helloworld service, so now you can delete the service from the swarm.
If you haven’t already, open a terminal and ssh into the machine where you run your manager node. For example, the tutorial uses a machine named
docker service rm helloworld to remove the
$ docker service rm helloworld helloworld
docker service inspect <SERVICE-ID> to verify that the swarm manager removed the service. The CLI returns a message that the service is not found:
$ docker service inspect helloworld  Error: no such service: helloworld
Even though the service no longer exists, the task containers take a few seconds to clean up. You can use
docker ps on the nodes to verify when the tasks have been removed.
$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES db1651f50347 alpine:latest "ping docker.com" 44 minutes ago Up 46 seconds helloworld.5.9lkmos2beppihw95vdwxy1j3w 43bf6e532a92 alpine:latest "ping docker.com" 44 minutes ago Up 46 seconds helloworld.3.a71i8rp6fua79ad43ycocl4t2 5a0fb65d8fa7 alpine:latest "ping docker.com" 44 minutes ago Up 45 seconds helloworld.2.2jpgensh7d935qdc857pxulfr afb0ba67076f alpine:latest "ping docker.com" 44 minutes ago Up 46 seconds helloworld.4.1c47o7tluz7drve4vkm2m5olx 688172d3bfaa alpine:latest "ping docker.com" 45 minutes ago Up About a minute helloworld.1.74nbhb3fhud8jfrhigd7s29we $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS
In the next step of the tutorial, you set up a new service and apply a rolling update.
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