Merge pull request #5 from DavidSouther/istio-canary

adding istio canary

kubernetes-manifests/recommendationservice.yaml

@@ -15,15 +15,17 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: recommendationservice
+  name: recommendationservice-v1
 spec:
   selector:
     matchLabels:
       app: recommendationservice
+      version: v1
   template:
     metadata:
       labels:
         app: recommendationservice
+        version: v1
     spec:
       terminationGracePeriodSeconds: 5
       containers:
@@ -54,15 +56,78 @@ spec:
             cpu: 200m
             memory: 450Mi
 ---
-apiVersion: v1
-kind: Service
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: recommendationservice-v2
+spec:
+  selector:
+    matchLabels:
+      app: recommendationservice
+      version: v2
+  template:
+    metadata:
+      labels:
+        app: recommendationservice
+        version: v2
+    spec:
+      terminationGracePeriodSeconds: 5
+      containers:
+        - name: server
+          image: recommendationservice
+          ports:
+            - containerPort: 8080
+          readinessProbe:
+            periodSeconds: 5
+            exec:
+              command: ["/bin/grpc_health_probe", "-addr=:8080"]
+          livenessProbe:
+            periodSeconds: 5
+            exec:
+              command: ["/bin/grpc_health_probe", "-addr=:8080"]
+          env:
+            - name: PORT
+              value: "8080"
+            - name: PRODUCT_CATALOG_SERVICE_ADDR
+              value: "productcatalogservice:3550"
+            - name: ENABLE_PROFILER
+              value: "0"
+          resources:
+            requests:
+              cpu: 100m
+              memory: 220Mi
+            limits:
+              cpu: 200m
+              memory: 450Mi
+---
+apiVersion: networking.istio.io/v1alpha3
+kind: VirtualService
 metadata:
   name: recommendationservice
 spec:
-  type: ClusterIP
-  selector:
-    app: recommendationservice
-  ports:
-  - name: grpc
-    port: 8080
-    targetPort: 8080
+  hosts:
+    - recommendationservice
+  http:
+    - route:
+        - destination:
+            host: recommendationservice
+            subset: v1
+          weight: 90
+        - destination:
+            host: recommendationservice
+            subset: v2
+          weight: 10
+---
+apiVersion: networking.istio.io/v1alpha3
+kind: DestinationRule
+metadata:
+  name: recommendationservice
+spec:
+  host: recommendationservice
+  subsets:
+    - name: v1
+      labels:
+        version: v1
+    - name: v2
+      labels:
+        version: v2