09-Kube-Proxy.md

Kube Proxy

• Take me to Video Tutorial

In this section, we will take a look at kube-proxy.

Within Kubernetes Cluster, every pod can reach every other pod, this is accomplish by deploying a pod networking cluster to the cluster.

• Kube-Proxy is a process that runs on each node in the kubernetes cluster.

  

Install kube-proxy - Manual

• Download the kube-proxy binary from the kubernetes release pages kube-proxy. For example: To download kube-proxy v1.13.0, Run the below command.

  $ wget https://storage.googleapis.com/kubernetes-release/release/v1.13.0/bin/linux/amd64/kube-proxy
  

• Extract it

• Run it as a service

  

View kube-proxy options - kubeadm

• If you set it up with kubeadm tool, kubeadm tool will deploy the kube-proxy as pod in kube-system namespace. In fact it is deployed as a daemonset on master node.

  $ kubectl get pods -n kube-system
  

  

K8s Reference Docs:

• https://kubernetes.io/docs/reference/command-line-tools-reference/kube-proxy/
• https://kubernetes.io/docs/concepts/overview/components/