kubernetes tutorial | ReplicaSet | Demo - Create ReplicaSet using kubectl commands

Published: 13 February 2022
on channel: VSPARKZ

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Certified Kubernetes Administrator
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kubernetes tutorial | ReplicaSet | Demo - Create ReplicaSet using kubectl commands

Description:
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In this video, you are going to learn the concepts of ReplicaSet & a Demo on how to create ReplicaSet using kubectl commands (or) yaml manifests

What is ReplicaSet ?
Alternative to ReplicaSet – Deployment (Recommended)
How to create a ReplicaSet ?
ReplicaSet yaml manifest
How ReplicaSet Works ?
DEMO: Create the ReplicaSet using the Manifest file

For suggestions/feedback/doubts contact
email: [email protected]

Happy Learning !!!

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USEFUL LINKS:
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ReplicaSet:
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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 ReplicaSet Manifest using kubectl commands
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$ kubectl create deployment myreplicaset --image=nginx --replicas=1 --dry-run=client -o yaml

Copy the output content and create a file ReplicaSet.yaml

Step 3: Create the ReplicaSet using the Manifest file (Replicas =1)
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$ kubectl apply -f ReplicaSet.yaml

Step 4: Increase the Replica count to 2 in the ReplicaSet
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Either you can edit the resource itself using kubectl commands

Or you can modify the manifest yaml file and apply the same (Recommended)

Step 5: Delete a Replica/Pod and Observe the Behavior
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$ kubectl delete pod -podname-

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