Description of problem: When creating a machine deplpoyment using the default example and modify the labels and selectors it doesnt work.


eg :

apiVersion: cluster.k8s.io/v1alpha1
kind: MachineDeployment
metadata:
  annotations:
    machinedeployment.clusters.k8s.io/revision: "1"
  creationTimestamp: 2019-01-25T11:48:07Z
  generation: 1
  name: example
  namespace: openshift-cluster-api
  resourceVersion: "4196063"
  selfLink: /apis/cluster.k8s.io/v1alpha1/namespaces/openshift-cluster-api/machinedeployments/example
  uid: 14c38062-2097-11e9-b156-02d3ec294f42
spec:
  minReadySeconds: 0
  progressDeadlineSeconds: 600
  replicas: 3
  revisionHistoryLimit: 1
  selector:
    matchLabels:
      sigs.k8s.io/cluster-api-cluster: testjas
      sigs.k8s.io/cluster-api-machineset: testjas-worker-us-east-2a
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
    type: RollingUpdate
  template:
    metadata:
      creationTimestamp: null
      labels:
        sigs.k8s.io/cluster-api-cluster: testjas
        sigs.k8s.io/cluster-api-machine-role: worker
        sigs.k8s.io/cluster-api-machine-type: worker
        sigs.k8s.io/cluster-api-machineset: testjas-worker-us-east-2a
    spec:
      metadata:
        creationTimestamp: null
      providerSpec: {}
      versions:
        kubelet: ""
status:
  observedGeneration: 1
  replicas: 3
  unavailableReplicas: 3
  updatedReplicas: 3


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results: The machineset that is created doesnt contain any regions of zones and the machines never gets to ready state.


Expected results:  It should have suceeded based on the labels we provided


Additional info: The default example provided should be easy for ready deployment inorder to understand what is required for instant deployment.

Below example doesnt help in any way :

apiVersion: cluster.k8s.io/v1alpha1
kind: MachineDeployment
metadata:
  name: example
  namespace: openshift-cluster-api
spec:
  replicas: 3
  selector:
    matchLabels:
      foo: bar
  template:
    metadata:
      labels:
        foo: bar
    spec:
      providerSpec: {}
      versions:
        kubelet: ''