fmn: try adding a emptydir for redis data

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

roles/openshift-apps/fmn/templates/deployment.yml.j2

@@ -464,6 +464,12 @@ spec:
                 secretKeyRef:
                   name: fmn
                   key: redis-password
+          volumeMounts:
+            - name: redis-data
+              mountPath: /data
+      volumes:
+        - name: redis-data
+          emptyDir: {}
 ---
 # Collectd stats collector
 apiVersion: apps/v1