chore: Add an Instancetype Controller to Asynchronously Hydrate InstanceType Data

[engedaam]

Fixes #N/A

Description

• Asynchronously hydrate with instance type data. The controller will attempt to refresh the data every 12 hours, and implement a exponential backoff for delay: 1ms and max: 1000s

How was this change tested?

• make presubmit
• E2E testing will be added in a separate PR

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[netlify]

✅ Deploy Preview for karpenter-docs-prod canceled.

Name	Link
🔨 Latest commit	63ada74
🔍 Latest deploy log	https://app.netlify.com/sites/karpenter-docs-prod/deploys/662290ac7c4a8300083cc62b

[coveralls]

Pull Request Test Coverage Report for Build 8756167261

Details

• 103 of 123 (83.74%) changed or added relevant lines in 5 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.04%) to 81.963%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controllers/providers/pricing/controller.go	0	1	0.0%
pkg/controllers/controllers.go	0	2	0.0%
pkg/providers/instancetype/instancetype.go	87	93	93.55%
pkg/controllers/providers/instancetype/controller.go	15	26	57.69%

Files with Coverage Reduction	New Missed Lines	%
pkg/providers/instancetype/instancetype.go	1	88.78%

Totals
Change from base Build 8756000678:	-0.04%
Covered Lines:	5394
Relevant Lines:	6581

---

💛 - Coveralls

[engedaam]

/karpenter snapshot

[github-actions]

Snapshot successfully published to oci://021119463062.dkr.ecr.us-east-1.amazonaws.com/karpenter/snapshot/karpenter:0-8b2025ce9871c7921210c9ce27099b020e38525a.
To install you must login to the ECR repo with an AWS account:

aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin 021119463062.dkr.ecr.us-east-1.amazonaws.com

helm upgrade --install karpenter oci://021119463062.dkr.ecr.us-east-1.amazonaws.com/karpenter/snapshot/karpenter --version "0-8b2025ce9871c7921210c9ce27099b020e38525a" --namespace "kube-system" --create-namespace \
  --set "settings.clusterName=${CLUSTER_NAME}" \
  --set "settings.interruptionQueue=${CLUSTER_NAME}" \
  --set controller.resources.requests.cpu=1 \
  --set controller.resources.requests.memory=1Gi \
  --set controller.resources.limits.cpu=1 \
  --set controller.resources.limits.memory=1Gi \
  --wait

[jonathan-innis]

Nice work!

[jonathan-innis]

LGTM 🚀