8. Maintain

Hardware requirements, deployment process in details, aspects related to security, configuration files — all of the listed is explained in this separate section, helpful for DevOps engineers or those who are digging deeper in the system capabilities.

Table of contents

• 8.1. Adding Peers
  • 8.1.1. Requirements
  • 8.1.2. Usage
  • 8.1.3. Example
  • 8.1.4. Remove Peer
• 8.2. Restarting Iroha node with existing WSV
  • 8.2.1. Dropping WSV
  • 8.2.2. State Database Schema version
  • 8.2.3. Changing Iroha version. Migration.
  • 8.2.4. Synchronize WSV mode.
• 8.3. Iroha installation security tips
  • 8.3.1. Physical security
  • 8.3.2. Deployment
  • 8.3.3. Network configuration
  • 8.3.4. Updates
  • 8.3.5. Logging and monitoring
  • 8.3.6. OS hardening
• 8.4. Shepherd
  • 8.4.1. Prerequisites
  • 8.4.2. Supported actions
    • 8.4.2.1. Graceful shutdown
    • 8.4.2.2. Watch it work
  • 8.4.3. Other parameters
• 8.5. Troubleshooting
  • 8.5.1. Restore after hard shutdown