OpenBao in Practice

"OpenBao in Practice: Operating an Open Vault-Style Secrets Platform" OpenBao is not "just a secrets store"-it's a security control plane whose smallest misconfiguration can become an organization-wide incident. This book is written for experienced operators, SREs, platform engineers, and security engineers who need a precise mental model of how OpenBao behaves under pressure: failures, upgrades, compromised workloads, and human error. If you run production infrastructure and want to make secrets delivery boring, predictable, and auditable, this is your playbook. You'll learn OpenBao end-to-end as a single pipeline-auth to policy evaluation to secrets engine to audit-and use that model to design trust boundaries and rank operational risks. The book goes deep on secure bootstrap, storage durability and HA semantics, sealing and unsealing as a real security boundary, and least-privilege at scale through tokens, leases, and policy composition. It then tackles identity integrations (Kubernetes, OIDC/JWT), production operations of KV, dynamic credentials, PKI, and Transit, and finishes with automation patterns, audit-driven forensics, disciplined upgrades, disaster recovery engineering, namespaces/multi-tenancy, and migration from Vault CE. Expect CLI/API-first workflows, runbook-grade procedures, and decision criteria grounded in threat modeling and failure modes. Familiarity with TLS, Linux operations, Kubernetes, and IAM concepts is assumed.