Plan and Upgrade Azure Kubernetes Cluster (AKS)

Part of the AKS cluster lifecycle involves performing periodic upgrades to the latest Kubernetes version. It’s important you apply the latest security releases, or upgrade to get the latest features. This article shows you how to check for, configure, and apply upgrades to your AKS cluster.
Node surges require subscription quota for the requested max surge count for each upgrade operation.
Pod Disruption Budget:
• Azure Kubernetes Clust...
AKS playlist:
• Azure Kubernetes Servi...
#azure #kubernetes #aks #acr #container #registry #certification #serviceprincipal #spn #roles #cks #cka #hpa #autoscaling #azuredisk #poddisruptionbudget #pdb #disruption #upgrade #update #nodesurge

[@atyvxqU8]

Hello - good explanation - I have followed your steps for upgrade

[@kbrajeshwaran]

Much Appreciated your efforts.

[@jessegador]

Thanks, your videos on PDB and this are helpful insights. I was tasked to upgrade the kubernetes and I was not sure if there will be downtime. So by default, AKS will take care of that one.

[@jyotitiwari8027]

Hi Shailender, thank you very much this video is very nice and giving so much help to me, please answer some of my points below:
1- do version upgrade change ip of cluster?
2- Please paste version upgrade command of system nodepools as it is not visible in video
I would be very happy if you answer my points asap, thank you once again

[@anamikaupadhya144]

Hello , can you please let me know during AKS , can we delete unused node by script as well . If I will delete the unused node so what will be the effect .

[@lokeshrudra8588]

what is the difference between node pool vs agent pool vs node count ?

[@kbrajeshwaran]

Just to understand two points
1.if we have standalone pods on the node ,how can we evict the pods and is there downtime involved
2.Aks control plane is manged by azure and we don't have control over the control plan .How the update take in place

[@shailenderchoudhary1988]

1) In the case of cluster upgrade all the nodes will be drained, so you don't have to move the pods to different nodes manually. Yes, there will be downtime which has to be planned in advance.
2) Control plane is managed by Azure but we are responsible for any security patch or minor upgrades. But we can only upgrade the nodepools when control plane is on higher version. So either we upgrade them together or first control plane and then individual node pools.

[@balakrishna7540]

Hi bro ur explanation was good.
I don't want upgrade version I want specific version instead of latest then which command is used for that specific version

[@shailenderchoudhary1988]

You can only choose your desired version while deploying AKS first time. But you can only upgrade to specific versions which you get while checking the available versions to upgrade.