HashiCorp Vault

Overview

HashiCorp Vault centralizes secret storage, dynamic credential issuance, and encryption services.

Core Capabilities

• Secure secret storage
• Dynamic secrets for databases and cloud APIs
• Transit encryption service
• Audit logging and policy controls

flowchart TD
    A[Service] --> B[Vault Auth]
    B --> C[Policy Check]
    C --> D[Secret Issued]

Practical Example

vault kv put secret/payment api_key="value123"
vault kv get secret/payment

Production Example

A multi-team platform uses Vault namespaces and policies to isolate secret access by environment and team boundary.

Common Pitfalls

• Broad root token usage in automation
• Weak token TTL strategy
• No disaster recovery procedure for Vault storage backend

Key Takeaways

• Vault supports centralized and auditable secret governance.
• Policy design and token lifecycle management are critical.
• Recovery planning is required for business continuity.