This page explains the step by step configuration of sandbox and implementation of repmgr along with barman according to official documentation
Note: Lab setup starts from Chapter 2 : Installation

I. Getting started
II. repmgr administration manual
- repmgr configuration
- Cloning standbys
- Promoting a standby server with repmgr
- Following a new primary
- Performing a switchover with repmgr
- Event Notifications
- Upgrading repmgr
III. Using repmgrd
- repmgrd overview
- Automatic failover with repmgrd
- repmgrd setup and configuration
- repmgrd operation