Use preview-3.3 for now

ewoutp · ewoutp · commit 52783c5a11e7 · 2018-05-17T11:18:20.000+02:00
diff --git a/examples/single-server.yaml b/examples/single-server.yaml
@@ -4,5 +4,4 @@ metadata:
   name: "example-simple-single"
 spec:
   mode: Single
-  single:
-    storageClassName: my-local-ssd
+  image: arangodb/arangodb-preview:3.3
