Technologies · Karpenter
Karpenter consulting: EKS node autoscaling done right
We implement Karpenter on EKS: just-in-time nodes sized to actual pod requirements, spot instances with graceful interruption handling, and automatic consolidation when load drops. Replacing static node groups with Karpenter is one of the highest-ROI changes on EKS — typical node spend drops 30–50%.
Reference architecture
How we build with Karpenter
Demand
Decide
Provision
Optimize
Scope
What our Karpenter consulting covers
- Karpenter installation and migration off Cluster Autoscaler / static node groups
- NodePool design: instance families, spot/on-demand split, consolidation policy
- Spot done safely: interruption handling, PDBs, capacity-diverse instance selection
- Workload requests/limits tuning so Karpenter's bin-packing has honest inputs
- Cost guardrails: limits per NodePool, drift alerts on node spend
System design
How Karpenter changes EKS scaling
- 1
Nodes arrive in seconds, not minutes: Karpenter provisions exactly-sized instances directly, skipping ASG choreography — autoscale events stop being incidents
- 2
Bin-packing beats guessing: instead of three fixed node sizes, Karpenter picks from dozens of instance types to fit the actual pending pods
- 3
Consolidation is continuous: underused nodes drain and terminate automatically, so the cluster contracts at night instead of idling
- 4
Spot becomes safe capacity: diverse instance types + interruption handling makes 60–80% spot realistic for stateless workloads
In practice
What a typical engagement looks like
An EKS cluster on three static m5.2xlarge node groups averaging 30% utilization moves to Karpenter: two NodePools (on-demand core, spot workers across 12 instance types), consolidation on, requests tuned from live metrics. Node spend drops ~42% and scale-up during traffic spikes goes from 4 minutes to under one.
Illustrative engagement — representative of typical work at typical scale, not a specific client. See a full sample audit deliverable here.
Karpenter work is covered by the Fractional DevOps retainer ($2,900/mo) and scoped fixed-price projects — start with the guaranteed $1,900 audit if you want findings before commitments.
Questions
Karpenter, straight answers
Is spot safe for production with Karpenter?
For stateless workloads, yes — with the guardrails: diverse instance types so one capacity pool drying up doesn't matter, interruption handling that drains pods on the 2-minute warning, and PDBs so drains never take down a service. Databases and singletons stay on on-demand; everything horizontal can ride spot.
Karpenter vs Cluster Autoscaler?
Cluster Autoscaler scales pre-defined node groups up and down — you still guess sizes. Karpenter provisions arbitrary right-sized instances directly from pod requirements, faster and cheaper. On EKS it's now the default choice; the migration can run both side by side, moving workloads gradually.
Related technologies
Need senior Karpenter help without the hire?
A 15-minute call is enough to tell you exactly what we'd do and what it costs. No pitch deck, no pressure.