Kuttl test to cover an edge deployment scenario

This patch introduces a kuttl test that is supposed to cover an Edge use
case deployment. It asserts that the required resources exist and the
Pods are available. This change also updates the Edge sample to make
sure it reflects the right type.

Signed-off-by: Francesco Pantano <fpantano@redhat.com>

config/samples/layout/edge/glance_v1beta1_glance.yaml

@@ -4,25 +4,28 @@ metadata:
   name: glance
 spec:
   serviceUser: glance
-  customServiceConfig: |
-    [DEFAULT]
-    debug = true
   databaseInstance: openstack
   databaseAccount: glance
-  keystoneEndpoint: central
+  keystoneEndpoint: default
   glanceAPIs:
-    edge1:
-      preserveJobs: false
+    default:
+      customServiceConfig: |
+        [DEFAULT]
+        enabled_backends=default_backend:rbd,az1:rbd,az2:rbd
       replicas: 1
-      type: edge
-    edge2:
-      preserveJobs: false
+      type: split
+    az1:
+      customServiceConfig: |
+        [DEFAULT]
+        enabled_backends=az1:rbd
       replicas: 1
       type: edge
-    central:
-      preserveJobs: false
+    az2:
+      customServiceConfig: |
+        [DEFAULT]
+        enabled_backends=az2:rbd
       replicas: 1
-      type: single
+      type: edge
   secret: osp-secret
   storageClass: local-storage
   storageRequest: 10G