docker stack - commit changes of docker-compose.yml

Question

I wanted to change the placement (manager/worker) of several containers in my docker stack deployment (swarm). Now im asking myself how i can commit the changes of my docker-compose.yml file to the deployed stack as I changed/extended the following:

deploy:
      ...
      placement:
        constraints:
          - node.role == worker

I already checked the docker docs on this but I found nothing according to this so far.

Thanks

score 0 · Accepted Answer · answered Mar 08 '20 at 16:17

After changing your docker-compose.yml, you can run another docker stack deploy -c docker-compose.yml ... to the same stack name and docker will update the new target state. And with that new target state, swarm mode will perform the changes to the services.

docker stack - commit changes of docker-compose.yml

1 Answers1