Xiaolin Talks Programming

Aug 1, 2026 · Backend Development

Spring Boot + Vault: Production-Grade Dynamic Secrets & Credential Rotation

This article details a production-hardened Spring Boot integration with HashiCorp Vault for centralized secret management, covering Kubernetes Auth and AppRole authentication, dynamic database credential issuance, lease renewal aligned with HikariCP connection pools, security policies, audit logging, high-availability Raft deployment with Auto-Unseal, and practical patterns for config reload, fallback, and multi-environment isolation.