Description of problem:

strategy type is seem as "Rolling" instead of "Recreate" while exporting the heketi dc. See below:

########
# oc get dc
NAME                     REVISION   DESIRED   CURRENT   TRIGGERED BY
heketi                   1          1         1         config
storage-project-router   1          1         1         config


# oc export dc heketi -o yaml |grep -i rolling
    rollingParams:
    type: Rolling
########

Version-Release number of selected component (if applicable):
openshift v3.4.0.38
kubernetes v1.4.0+776c994

# heketi-cli -v
heketi-cli 3.1.0
heketi-client-3.1.0-12.el7rhgs.x86_64
cns-deploy-3.1.0-12.el7rhgs.x86_64

How reproducible: Always


Steps to Reproduce:
1. Install the latest heketi build from https://brewweb.engineering.redhat.com/brew/buildinfo?buildID=530142
2. Create a new namespace called "storage-project"
3. Setup a router as described in our official doc
4. Create a topology file
5. Execute # cns-deploy topology.json --deploy-gluster --namespace=storage-project
6. Check the output of # oc export dc heketi -o yaml

Actual results: strategy type is currently seem as "Rolling" while exporting the heketi dc even though the heketi template has the correct type, which is "Recreate". If I understand it correctly, this is going to affect any upgrades from CNS 3.4 to any future versions unless and until a manual workaround is provided in the doc and the same is applied by all the admins while deploying CNS 3.4 itself. If this is not ensured, I doubt if any future upgrades for CNS 3.4 will go smoothly or not.

Expected results: strategy type should be "Recreate" so that it won't any future upgrades of CNS 3.4


Additional info: See the full output of export below:

**********************
# oc export dc heketi -o yaml
apiVersion: v1
kind: DeploymentConfig
metadata:
  annotations:
    description: Defines how to deploy Heketi
  creationTimestamp: null
  generation: 1
  labels:
    glusterfs: heketi-dc
    template: heketi
  name: heketi
spec:
  replicas: 1
  selector:
    name: heketi
  strategy:
    resources: {}
    rollingParams:
      intervalSeconds: 1
      maxSurge: 25%
      maxUnavailable: 25%
      timeoutSeconds: 600
      updatePeriodSeconds: 1
    type: Rolling
  template:
    metadata:
      creationTimestamp: null
      labels:
        glusterfs: heketi-pod
        name: heketi
      name: heketi
    spec:
      containers:
      - env:
        - name: HEKETI_USER_KEY
        - name: HEKETI_ADMIN_KEY
        - name: HEKETI_EXECUTOR
          value: kubernetes
        - name: HEKETI_FSTAB
          value: /var/lib/heketi/fstab
        - name: HEKETI_SNAPSHOT_LIMIT
          value: "14"
        - name: HEKETI_KUBE_CERTFILE
        - name: HEKETI_KUBE_INSECURE
          value: "y"
        - name: HEKETI_KUBE_GLUSTER_DAEMONSET
          value: "y"
        - name: HEKETI_KUBE_USE_SECRET
          value: "y"
        - name: HEKETI_KUBE_TOKENFILE
          value: /var/lib/heketi/secret/token
        - name: HEKETI_KUBE_NAMESPACE
          value: storage-project
        - name: HEKETI_KUBE_APIHOST
          value: https://dhcp46-26.lab.eng.blr.redhat.com:8443
        image: rhgs3/rhgs-volmanager-rhel7
        imagePullPolicy: Always
        livenessProbe:
          failureThreshold: 3
          httpGet:
            path: /hello
            port: 8080
            scheme: HTTP
          initialDelaySeconds: 30
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 3
        name: heketi
        ports:
        - containerPort: 8080
          protocol: TCP
        readinessProbe:
          failureThreshold: 3
          httpGet:
            path: /hello
            port: 8080
            scheme: HTTP
          initialDelaySeconds: 3
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 3
        resources: {}
        terminationMessagePath: /dev/termination-log
        volumeMounts:
        - mountPath: /var/lib/heketi
          name: db
        - mountPath: /var/lib/heketi/secret
          name: secret
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      securityContext: {}
      terminationGracePeriodSeconds: 30
      volumes:
      - glusterfs:
          endpoints: heketi-storage-endpoints
          path: heketidbstorage
        name: db
      - name: secret
        secret:
          defaultMode: 420
          secretName: heketi-service-account-token-qk9mq
  test: false
  triggers:
  - type: ConfigChange
status: {}
**********************