Kubernetes Autoscaling with Karpenter from DevOps and Docker Talk: Cloud Native Interviews and Tooling

DevOps and Docker Talk: Cloud Native Interviews and Tooling

Bret Fisher

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Kubernetes Autoscaling with Karpenter

52 minutes Posted Aug 12, 2022 at 1:30 pm.

) DDT MAIN

) Intro

) Custom intro

) Main Show

) Introductions

) Nirmal's Jobs

) Talking about Kubernetes cluster scaling

) Who are we addressing?

) What is Karpenter not addressing?

) Auto-scaling at pod level

) Cluster auto-scaling

) Karpenter is alternate to cluser autoscaler

) Question

) Issues Karpenter was created to address

) What is Karpenter?

) Selective instance type provisioning

) Matching deployment definition to instance types

) Question: Is Karpenter designed only for AWS?

) Question: Can you auto-scale control plane nodes?

) The Kubernetes Scheduler

) Question: Does Karpenter auto-scale down?

) Question: EKS with Karpenter spot instances

) Question: Karpenter and AWS auto-scaling groups

) Question: Installation and provisioning

) Only affects unschedulable pods

) Demo intro

) Demo

) Scaling Down

) Keeping your nodes fresh

) If you want to learn more

) Goals for 2022

) Questions

) Question: Cost-effective instances

) Question: Instances to IoC and automatically destroyed?

) Question: Features being pushed upstream into Kubernetes

) Question: Rebalancing

) Scaling down is hard too

) Question: Horizontal pod auto-scaler trigger Karpenter

) Question: Specs and Documentation

) Question: How does it pick instance sizes?

) Question: Karpenter respects desire to spread workloads

) Question: EKSAnywhere support

) Question: How do you pick AMIs?

) Winding down

) Wrapping up

) Outro

DDT MAIN

Intro

Custom intro

Main Show

Introductions

Nirmal's Jobs

Talking about Kubernetes cluster scaling

Who are we addressing?

What is Karpenter not addressing?

Auto-scaling at pod level

Cluster auto-scaling

Karpenter is alternate to cluser autoscaler

Question

Issues Karpenter was created to address

What is Karpenter?

Selective instance type provisioning

Matching deployment definition to instance types

Question: Is Karpenter designed only for AWS?

Question: Can you auto-scale control plane nodes?

The Kubernetes Scheduler

Question: Does Karpenter auto-scale down?

Question: EKS with Karpenter spot instances

Question: Karpenter and AWS auto-scaling groups

Question: Installation and provisioning

Only affects unschedulable pods

Demo intro

Demo

Scaling Down

Keeping your nodes fresh

If you want to learn more

Goals for 2022

Questions

Question: Cost-effective instances

Question: Instances to IoC and automatically destroyed?

Question: Features being pushed upstream into Kubernetes

Question: Rebalancing

Scaling down is hard too

Question: Horizontal pod auto-scaler trigger Karpenter

Question: Specs and Documentation

Question: How does it pick instance sizes?

Question: Karpenter respects desire to spread workloads

Question: EKSAnywhere support

Question: How do you pick AMIs?

Winding down

Wrapping up

Outro

0:00

52:39

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Show notes

Bret is joined by Nirmal Mehta, a Principal Specialist Solution Architect at AWS, and a Docker Captain, to discuss Karpenter, an autoscaling solution launched by AWS in 2021. Karpenter simplifies Kubernetes infrastructure by automating node scaling up and down, giving you "the right nodes at the right time."Autoscaling, particularly for Kubernetes, can be quite a complex project when you first start. Bret and Nirmal discuss how Karpenter works, how it can help or complement your existing setup, and how autoscaling generally works.Streamed live on YouTube on June 9, 2022.Unedited live recording of this show on YouTube (Ep #173). Includes demos.★Topics★Starship Shell PromptBret's favorite shell setupKarpenterKarpenter release blogK8s Scheduling ConceptsOther types of autoscalers:Horizontal Pod AutoscalerVertical Pod AutoscalerCluster Autoscaler★Nirmal Mehta★Nirmal on TwitterNirmal on LinkedIn★Join my Community★Best coupons for my Docker and Kubernetes coursesChat with us on our Discord Server Vital DevOpsHomepage bretfisher.com

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