Slight tweaks to staging k8s to fix minor inconsistencies

src/main/k8s/staging.yml

@@ -30,10 +30,10 @@ spec:
             weight: 1
       containers:
       - name: app
-        image: eclipsefdn/working-group-api:latest
+        image: eclipsefdn/eclipsefdn-working-groups-api:latest
         imagePullPolicy: Always
         ports:
-        - containerPort: 8080
+        - containerPort: 8090
         resources:
           limits:
             cpu: '1'
@@ -63,7 +63,7 @@ spec:
   - name: "http"
     port: 80
     protocol: "TCP"
-    targetPort: 8080
+    targetPort: 8090
   selector:
     app: eclipsefdn-working-group-api
     environment: staging