Explanation

Additional context about the PostgreSQL charm, including design, legacy information, and security.

Core

Core concepts about the history and high-level design of Charmed PostgreSQL:

• Architecture
• Interfaces and endpoints
• Charm versions

Operation

Clarification of standard PostgreSQL operational concepts in the context of charms and Juju:

• Units
• Users
• Roles
• Logs
• Connection pooling

Security

Overview of security features in the charm and hardening guidance:

• Security
  • Cryptography