checkoutservice: activate cartservice link

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

kubernetes-manifests/checkoutservice.yaml

@@ -3,7 +3,6 @@ kind: Deployment
 metadata:
   name: checkoutservice
 spec:
-  replicas: 1
   template:
     metadata:
       labels:
@@ -23,6 +22,10 @@ spec:
             value: "paymentservice:50051"
           - name: EMAIL_SERVICE_ADDR
             value: "emailservice:5000"
+          - name: CURRENCY_SERVICE_ADDR
+            value: "currencyservice:7000"
+          - name: CART_SERVICE_ADDR
+            value: "cartservice:9999"
 ---
 apiVersion: v1
 kind: Service