Answer
etcd stores raw cluster state; manual edits may corrupt the cluster. API server is the safe interface.
Quick Answer
etcd is the source of truth for the cluster — all Kubernetes state is stored there. Direct etcd access bypasses API server validation, admission controllers, and RBAC. You can corrupt cluster state with malformed writes or accidentally expose secrets. Use kubectl and the API server for all interactions; etcdctl is for backup/restore only.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ