fix: bootstrap trusted kubelet serving certificates - #85
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- Add a Status printer column derived from the NodePool Ready condition - Regenerate the NodePool CRD - Add regression coverage for the printer column - Document the design, behavior, and deployment workflow
- Request a kubernetes.io/kubelet-serving certificate for the manager Pod IP - Replace the self-signed certificate after CSR approval without restarting - Renew serving certificates before expiration - Add the required Pod identity environment variables and CSR RBAC - Document CSR approval and kubelet TLS configuration - Add coverage for certificate installation and IP SAN validation
InftyAI-Agent
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needs-triage
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What changed
Nebula now requests a trusted kubelet serving certificate through the
kubernetes.io/kubelet-servingCSR signer.The CSR contains the manager Pod IP in its SAN. After approval and issuance,
Nebula atomically replaces the self-signed fallback certificate without
restarting the kubelet API or interrupting existing streams.
Why
Managed Kubernetes control planes such as EKS may verify kubelet serving
certificates. Nebula previously used only a self-signed certificate, causing
kubectl logsandkubectl execto fail with:x509: certificate signed by unknown authorityAdditional changes
POD_NAMEandPOD_UIDprojectionsVerification
go test ./pkg/vnode ./cmd -count=1go vet ./...Deployment note
The
kubernetes.io/kubelet-servingsigner requires an external approvaldecision. Approve the generated CSR with: