cluster analysis

helm-guestbook/templates/cluster_analysis.yaml

@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: ClusterAnalysisTemplate
+metadata:
+  name: success-rate
+spec:
+  args:
+  - name: service-name
+  - name: prometheus-port
+    value: 9090
+  metrics:
+  - name: success-rate
+    successCondition: result[0] >= 0.95
+    provider:
+      prometheus:
+        address: "http://a0179abbebc504fe1a02cc2868d10d20-1436141555.us-east-2.elb.amazonaws.com:{{args.prometheus-port}}"
+        query: |
+          sum(irate(
+            istio_requests_total{reporter="source",destination_service=~"{{args.service-name}}",response_code!~"5.*"}[5m]
+          )) / 
+          sum(irate(
+            istio_requests_total{reporter="source",destination_service=~"{{args.service-name}}"}[5m]
+          ))

helm-guestbook/templates/rollout.yaml

@@ -54,18 +54,25 @@ spec:
   minReadySeconds: 30
   strategy:
     canary: #Indicates that the rollout should use the Canary strategy
+      analysis:
+        templates:
+        - templateName: success-rate
+        startingStep: 2 # delay starting analysis run until setWeight: 40%
+        args:
+        - name: service-name
+          value: {{ template "helm-guestbook.fullname" . }}
       maxSurge: "25%"
       maxUnavailable: 0
       canaryService: guestbook-canary-service
       stableService: {{ template "helm-guestbook.fullname" . }}
       steps:
-      - setWeight: 10
+      - setWeight: 20
       - pause:
           duration: 1m # 1 minute
-      - setWeight: 20
+      - setWeight: 40
       - pause:
           duration: 1m # 1 minute
-      - setWeight: 50
+      - setWeight: 60
       - pause:
           duration: 1m # 1 minute
       - setWeight: 80