dynamicRoutingApp

Prerequisites

• Kubernetes kind/minikuke cluster
• Linkerd must be installed and configured with the cluster(https://linkerd.io/2.13/tasks/install/)
• Linkerd-SMI and Linkerd-viz extension must be installed.
• We can install Linkerd and required addons on the Kubernetes cluster in one step with

  $ make setup-cluster-linkerd
  

Create and configure the namespace

Create and configure namespace with linkerd proxy so that Deployments created in the namespace will be automatically configured with linkerd sidecar/proxy

kubectl create ns test --dry-run=client -o yaml \
  | linkerd inject - \
  | kubectl apply -f -

Weight Based A/B Testing with Flagger

Delete the HTTPRoute and TrafficSplit object

Delete all HTTPRoute and TrafficSplit objects as flagger creates them internally while testing

$ make delete-httpRoute-traffisplit

Follow following steps for weight Based A/B Testing

1. Install flagger

   $ make setup-cluster-flagger
   

2. Deploy book-svc and forwarder as follows:

   $ make deploy-flagger-release
   

3. Apply flagger header based canary object

   $ kubectl apply -f flagger/weight-based.yaml
   

4. Deploy Load generator for matrics analysis
   1. Deploy load generator

      $ make deploy-load-generator
      

5. Suppose you have made changes to the code or you have developed a different version of the API.
   1. Build the changes as follows:

      $ make build-flagger-release
      

   2. Deploy new release

      $ make patch-flagger-release
      

6. Observe the progress of a release

   $ watch kubectl -n test get canary