This article will show you how to install well-known service mesh - Linkerd on your Nutanix Karbon cluster



What is Linkerd

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Linkerd is an open source network proxy designed to be deployed as a service mesh: a dedicated layer for managing, controlling, and monitoring service-to-service communication within an application



Pre-requisites

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• A working Karbon Cluster with an internet connection. Tested with Kubernetes 1.10.3.
  
• kubectl installed on your laptop with kubeconfig configured.
  

https://portal.nutanix.com/#/page/docs/details?targetId=Karbon-v08:Karbon-v08



How to install

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• Download Linkerd cli on your desktop then update PATH variable
  

curl -sL https://run.linkerd.io/install | sh

export PATH=$PATH:$HOME/.linkerd2/bin

• Check Linkerd version
  

linkerd version

• Validate your Karbon cluster before installation
  

linkerd check --pre

• Install Linkerd onto the cluster
  

linkerd install | kubectl apply -f -



"Please be patient until linkerd pod is up & running"

• You can check whether the installation is going well(optional)
  

linkerd check

• Once the installation is finished, you can check what components are installed(optional)
  

kubectl -n linkerd get deploy

• Now your Linkerd control plane installed and running, you can now view the Linkerd dashboard by running
  

linkerd dashboard



All done, Welcome to Kubernetes service mesh !!





>Optional]

• Demo svc deployment
  

curl -sL https://run.linkerd.io/emojivoto.yml | kubectl apply -f -

• Port-forwarding the app pod to see the status
  

kubectl -n emojivoto port-forward $(kubectl -n emojivoto get po -l app=web-svc -oname | cut -d/ -f 2) 8080:80

• Let’s add Linkerd to emojivoto by running
  

kubectl get -n emojivoto deploy -o yaml | linkerd inject - | kubectl apply -f -



You’ve added Linkerd to existing services.

Now you should be able to see the registered service from Linkerd dashboard



Reference

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https://github.com/nogodan1234/Karbon

https://linkerd.io/2/getting-started/