Upgrade Traefik to latest

blue-green/multiple-services/README.md

@@ -2,7 +2,9 @@ Blue/green deployment to release multiple services simultaneously
 =================================================================
 
 > In this example, we release a new version of 2 services simultaneously using
-the blue/green deployment strategy.
+the blue/green deployment strategy. [Traefik](https://traefik.io) in used as
+Ingress controller, this example would also work with the
+[Nginx Ingress controller](https://github.com/kubernetes/ingress-nginx).
 
 ## Steps to follow
 
@@ -15,18 +17,22 @@ the blue/green deployment strategy.
 ## In practice
 
 Install the latest version of
-[Helm](https://docs.helm.sh/using_helm/#installing-helm), then install Traefik:
+[Helm](https://docs.helm.sh/using_helm/#installing-helm), then install
+[Traefik](https://traefik.io/):
 
 ```bash
 # Deploy Traefik with Helm
-$ helm install --name=traefik --version=1.17.1 stable/traefik
+$ helm install \
+    --name=traefik \
+    --version=1.60.0 \
+    --set rbac.enabled=true \
+    stable/traefik
 
-# Deploy version 1 of application a and b
-$ kubectl apply -f app-a-v1.yaml -f app-b-v1.yaml
-$ kubectl apply -f ingress-v1.yaml
+# Deploy version 1 of application a and b and the ingress
+$ kubectl apply -f app-a-v1.yaml -f app-b-v1.yaml -f ingress-v1.yaml
 
 # Test if the deployment was successful
-$ ingress=$(minikube service traefik-traefik --url | head -n1)
+$ ingress=$(minikube service traefik --url | head -n1)
 $ curl $ingress -H 'Host: a.domain.com'
 Host: my-app-a-v1-66fb8d6f99-hs8jr, Version: v1.0.0
 
@@ -40,12 +46,18 @@ $ watch kubectl get po
 # Then deploy version 2 of both applications
 $ kubectl apply -f app-a-v2.yaml -f app-b-v2.yaml
 
+# Wait for both applications to be running
+$ kubectl rollout status deploy my-app-a-v2 -w
+deployment "my-app-a-v2" successfully rolled out
+
+$ kubectl rollout status deploy my-app-b-v2 -w
+deployment "my-app-b-v2" successfully rolled out
+
 # Check the status of the deployment, then when all the pods are ready, you can
 # update the ingress
 $ kubectl apply -f ingress-v2.yaml
 
 # Test if the deployment was successful
-$ ingress=$(minikube service traefik-traefik --url | head -n1)
 $ curl $ingress -H 'Host: a.domain.com'
 Host: my-app-a-v2-6b58d47c5f-nmzds, Version: v2.0.0
 

blue-green/single-service/README.md

@@ -29,6 +29,10 @@ $ watch kubectl get po
 # Then deploy version 2 of the application
 $ kubectl apply -f app-v2.yaml
 
+# Wait for all the version 2 pods to be running
+$ kubectl rollout status deploy my-app-v2 -w
+deployment "my-app-v2" successfully rolled out
+
 # Side by side, 3 pods are running with version 2 but the service still send
 # traffic to the first deployment.