Issue

• Why Kubernetes schedules pods to a node which is marked as "unschedulable" in Red Hat Atomic Host ?
  Example

1. Mark the node as unschedulable

kubectl update nodes node1.example.com --patch='{"apiVersion": "v1beta3", "spec": {"unschedulable": true}}'

2. Verify the update

[root@master Atomic]$ kubectl get nodes
NAME                    LABELS          STATUS
node1.example.com   Unschedulable   name=node1.example.com          Ready
node2.example.com   Schedulable     dc=IST,name=node2.example.com   Ready

3. Create a pod and check where the pod was scheduled

POD                                    IP                  CONTAINER(S)        IMAGE(S)            HOST                                 LABELS                                          STATUS
188ae336-2b44-11e5-93c0-5254009e2c8a   10.20.54.10         db                  dbforweb            node1.example.com/                 name=db,selectorname=db                           Running