Explanation

Additional context about the PostgreSQL charm, including design, operational concepts, and security.

Charm design

Core concepts about the high-level design of the PostgreSQL charm and its interfaces:

• Architecture
• Charm versions
• Interfaces and endpoints

Operation

Standard PostgreSQL operational concepts explained in the context of charms and Juju - such as how Juju units map to PostgreSQL replicas, what kinds of users and roles are exposed through the charm, and what kind of logs get written:

• Units
• Stereo mode
• Users
• Roles
• Logs
• Performance and testing
• Connection pooling

Security

Overview of security and cryptography features in the charm:

• Security hardening
  • Overview
  • Cryptography