fix: Add option to configure extra pod capacity for alternate cnis #5781
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Fixes #5780
Description
Adds an option to configure extra pod capacity for alternative cni runtimes. Karpenter hardcodes 2 extra pods beyond the ENI IP limits, to account for aws-cni and kube-proxy. This exposes that value as a configurable option while leaving the default untouched.
We want to be able to use Cilium w/kube-proxy mode enabled, and so we need to be able to set this to "1" to account for 1 fewer host networked pod.
How was this change tested?
make presubmitDoes this change impact docs?
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