docker container switch from one node to another node without draining or restarting the node


docker container switch from one node to another node without draining or restarting the node



How to switch docker container from one node to another node without draining or restarting the node. As everytime I kill container or set docker container unhealthy , the container is started on same node. Purpose of this is to overcome frequent restart of docker on same node?




1 Answer
1



To specify a node for a container / service you need to specify a constraint docker service create --name myname --constraint 'node.hostname == dahostname' myimage


docker service create --name myname --constraint 'node.hostname == dahostname' myimage



https://docs.docker.com/engine/reference/commandline/service_create/#specify-service-constraints---constraint



and



https://docs.docker.com/engine/reference/commandline/service_update/#options






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