This section delivers a complete guide to PostgreSQL orchestration on 123cluster. You’ll begin with cluster provisioning and standby replica setup, then create new databases and configure HAProxy for load-balanced access. Next, you’ll explore maintenance operations—starting and stopping nodes, executing switchovers, and managing repmgr workflows (pause/unpause). You’ll also walk through exporting and restoring databases, cloning a primary, copying databases, and finally cleaning up by dropping nodes, exports, and backups. By following these tutorials, you’ll gain a production-ready, repeatable process for PostgreSQL lifecycle management.