Court-records nodes stop placing networking for new Pods and CNI re…

Question

Court-records nodes stop placing networking for new Pods and CNI reports address allocation failures. What failure mode fits?

Accepted Answer

The CNI IP pool (IPAM) is exhausted, so new Pods cannot obtain Pod IPs and fail to network. — Every Pod needs a phone number from the CNI pool—when the pool’s empty, new hires can’t call out. Free or expand IPAM space before blaming Services.

Answer

All ClusterIP Services have used up the Pod CIDR, which Kubernetes shares one-for-one with Pods.

Answer

Ingress wildcard hosts consume one Pod IP per TLS certificate.

Answer

ConfigMaps store Pod IPs and must be resized with kubectl edit nodes.

Court-records nodes stop placing networking for new Pods and CNI reports address allocation failures. What failure mode fits?

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