Add canary deployments docs for Istio and Ambassador

README.md

@@ -39,5 +39,6 @@ Web API:
 * [Horizontal Pod Auto-scaling](docs/2-autoscaling.md)
 * [Monitoring and alerting with Prometheus](docs/3-monitoring.md)
 * [StatefulSets with local persistent volumes](docs/4-statefulsets.md)
-* [Canary Deployments and A/B Testing](docs/5-canary.md)
 * [Expose Kubernetes services over HTTPS with Ngrok](docs/6-ngrok.md)
+* [A/B Testing with Ambassador API Gateway](docs/5-canary.md)
+* [Canary Deployments with Istio](docs/7-istio.md)

docs/5-canary.md

@@ -1,4 +1,4 @@
-# Canary Deployments and A/B Testing
+# A/B Testing and Canary Deployments
 
 Canary Deployment and A/B testing with Ambassador's Envoy API Gateway. 
 

docs/7-istio.md

@@ -1,4 +1,4 @@
-# GitOps for Istio Canary Deployments
+# Canary Deployments with Istio
 
 ### Install Istio
 
@@ -188,6 +188,8 @@ Observe the traffic shift with Scope:
 
 ### Applying GitOps
 
+![gitops](https://github.com/stefanprodan/k8s-podinfo/blob/master/docs/diagrams/istio-gitops.png)
+
 Prerequisites for automating Istio canary deployments:
 
 * create a cluster config Git repo that contains the desire state of your cluster

docs/index.md

@@ -9,5 +9,6 @@ that showcases best practices of running microservices in Kubernetes.
 * [Horizontal Pod Auto-scaling](2-autoscaling.md)
 * [Monitoring and alerting with Prometheus](3-monitoring.md)
 * [StatefulSets with local persistent volumes](4-statefulsets.md)
-* [Canary Deployments and A/B Testing](5-canary.md)
 * [Expose Kubernetes services over HTTPS with Ngrok](6-ngrok.md)
+* [A/B Testing with Ambassador API Gateway](5-canary.md)
+* [Canary Deployments with Istio](7-istio.md)