09-Kubelet.md

Kubelet

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In this section we will take a look at kubelet.

Kubelet is the sole point of contact for the kubernetes cluster

• The kubelet will create the pods on the nodes, the scheduler only decides which pods goes where.

  

Install kubelet

• Kubeadm does not deploy kubelet by default. You must manually download and install it.

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

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

• Extract it

• Run it as a service

  

View kubelet options

• You can also see the running process and affective options by listing the process on worker node and searching for kubelet.

  $ ps -aux |grep kubelet
  

  

K8s Reference Docs:

• https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/
• https://kubernetes.io/docs/concepts/overview/components/
• https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/kubelet-integration/