Good day.
I’m studying Docker Swarm and my personal lab has 3 managers and 2 workers. I’ve created an nginx service with docker service create --name web --publish 8080:80 nginx
and while I can see it in every manager once I do docker service ls
, I only can see its container with docker ps
in manager 2. Why is that? In production what happens if that manager fail? Is that how’s supposed to go?
EDIT:
In fact when I do docker service update --replicas=4 web
I see the 4 containers deployed 1 in every manager and 1 in one worker. And I’m a little lost here because I don’t know which thing goes into the managers and which on in workers. It would be awesome if anyone can enlight me here a little.
Thanks in advance.
Warm regards.