kubernetes tutorial | DaemonSet | Demo - How to create a DaemonSet ?

Certified Kubernetes Administrator
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kubernetes tutorial | DaemonSet | Demo - How to create a DaemonSet ?

Description:
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In this video, you are going to learn the concepts of DaemonSet & a Demo on how to create DaemonSet using yaml manifests

DaemonSet:

What is a DaemonSet ?
Why DaemonSet ?
Use Cases of DaemonSet
How a DaemonSet works ?
How to create a DaemonSet ?
DaemonSet - Yaml Manifest
DEMO: Create DaemonSet using yaml manifests
Thank you



For suggestions/feedback/doubts contact
email: kvk@vsparkz.com

Happy Learning !!!


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USEFUL LINKS:
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DaemonSet:
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https://kubernetes.io/docs/concepts/w...

API References:
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https://kubernetes.io/docs/reference/...


Kubectl Command Reference:
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https://kubernetes.io/docs/reference/...

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#cka #kubernetes #k8s #containers

DEMO STEPS:
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Step 1: Access & Inspect the Kubernetes Cluster
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$ kubectl cluster-info

$ kubectl get nodes

$ kubectl get pods -n kube-system


Step 2: Create & Modify DaemonSet Manifest using kubectl commands
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$ kubectl create deployment logging --image=fluentd --dry-run=client -o yaml

Copy the output content and create a file DaemonSet.yaml


Step 3: Create the DaemonSet using the Manifest file
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$ kubectl apply -f DaemonSet.yaml


-- Check for Taints --

$ kubectl get nodes -o custom-columns=NAME:.metadata.name,TAINTS:.spec.taints --no-headers


Step 4: Add a Worker Node-2 to the Kubernetes Cluster
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-- Run the below in Master Node --

kubeadm token generate
kubeadm token create token --print-join-command

-- Run the below in Worker Node --

$ swapoff -a
$ systemctl disable firewalld
$ Execute the kubeadm join command which you got it from above.

Step 5: Delete Worker Node-2 to the Kubernetes Cluster
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$ kubectl delete node nodename