Make DCAEGEN compatible with Kubernetes v1.17

Issue-ID: OOM-2454

Signed-off-by: Krzysztof Kuzmicki <krzysztof.kuzmicki@nokia.com>
Change-Id: I7dc8044384f32930d2c3af7b59d39a94c3c4c103
diff --git a/kubernetes/dcaegen2/components/dcae-inventory-api/templates/deployment.yaml b/kubernetes/dcaegen2/components/dcae-inventory-api/templates/deployment.yaml
index 47b3312..29d6207 100644
--- a/kubernetes/dcaegen2/components/dcae-inventory-api/templates/deployment.yaml
+++ b/kubernetes/dcaegen2/components/dcae-inventory-api/templates/deployment.yaml
@@ -15,7 +15,7 @@
 # limitations under the License.
 # ============LICENSE_END=========================================================
 
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: {{ include "common.fullname" . }}
@@ -27,6 +27,9 @@
     heritage: {{ .Release.Service }}
 spec:
   replicas: 1
+  selector:
+    matchLabels:
+      app: {{ include "common.name" . }}
   template:
     metadata:
       labels: