feat: add MinIO, OpenEBS, and certificate diagnostics#122
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adamancini wants to merge 1 commit intomainfrom
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feat: add MinIO, OpenEBS, and certificate diagnostics#122adamancini wants to merge 1 commit intomainfrom
adamancini wants to merge 1 commit intomainfrom
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Add collectors and analyzers to diagnose MinIO data volume read failures on kURL clusters using OpenEBS local hostpath, and comprehensive certificate expiration and rotation diagnostics. Host collectors: - df -ih (inode usage) - findmnt (structured mount table with options/propagation) - OpenEBS local PV directory listing with format.json inspection - MinIO crictl logs (current + previous) - kubeadm certs check-expiration (with alpha fallback) - openssl-based cert check for all K8s PKI, kubelet, and kubeconfig certs - kubelet config.yaml and PKI directory listing Host analyzers: - EXT4 filesystem errors in dmesg - Filesystem remounted read-only - Kubelet read-only filesystem errors - Kubelet orphaned pod volume cleanup failures - Kubelet TLS handshake failures (stale CA after rotation) - Kubelet authentication failures (expired client cert) - Kubelet webhook authorization Forbidden (missing RBAC binding) - Kubelet x509 certificate errors - Kubernetes certificates expired (openssl) - Kubernetes certificates expiring within 30 days (openssl) - Kubeadm certificate expiration report In-cluster collectors: - MinIO data volume inspection via exec (format.json state) In-cluster analyzers: - MinIO data volume read failure - MinIO read-only filesystem - EKCO certificate rotation Forbidden errors - EKCO certificate rotation failures - kubeadm:cluster-admins RBAC binding existence - API server kubelet client proxy authorization
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Summary
kubectl exec/kubectl logsto fail during kURL upgradeskubeadm:cluster-adminsRBAC bindingContext
During a kURL rerun to update KOTS Admin, MinIO failed with "Failed to read /data/.minio.sys/format.json inside minio pod". Investigation revealed this is a
kubectl execfailure, not a storage issue — the API server's proxy request to the kubelet was returning Forbidden due to cert rotation or RBAC issues.Test plan
ada-kurl) — all new collectors produced output