How to require one pod per minion/kublet when configuring a replication controller?

Question

I have 4 nodes (kubelets) configured with a label role=nginx

master ~ # kubectl get node
NAME          LABELS                               


        

Answer 1

Prior to DaemonSet being available, you can also specify that you pod uses a host port and set the number of replicas in your replication controller to something greater than your number of nodes. The host port constraint will allow only one pod per host.