I use docker 1.13.1 and a cluster docker swarm in production (2 node manager and 2 node work). I would like to upgrade to docker 17.03 on all nodes. After preprod testing, the upgrade works very well on the workers and on the Reachable manager. But it’s the disaster if I do the operation on the manager Leader. Because all the services on all the cluster are restarting, and it’s doing a down of service …
To solve my problem, is there a way to force the election of the Leader on a specific manager node ?
Thank you for your help