Develop Service for Wazuh Agent

[vikman90]

Parent Issue:

• Implement Service and Packaging for New Wazuh Agent #126

Description

This issue focuses on creating a background service for the new Wazuh agent across the supported platforms: Linux, Windows, and macOS. The service must ensure that the agent starts automatically on boot, runs in the background, and provides administrators with basic control options (start, stop, restart).

Functional Requirements

• Linux: Develop a systemd service for the agent, ensuring it integrates with systemd for all supported distributions.
• Windows: Implement the agent as a Windows Service, ensuring it operates correctly on Windows Server 2008 R2+.
• macOS: Develop a launch daemon for macOS 14+ to manage the agent as a background service.

Subtasks

1. Create Systemd Service for Linux #130
   • Create a systemd unit file for the Wazuh agent.
   • Handle service installation, enabling, and management (start/stop/restart).
   • Ensure proper logging for service lifecycle events.
2. Implement Windows Service for Wazuh Agent #131
   • Implement the Wazuh agent as a Windows Service.
   • Ensure service management (start/stop) works as expected via Windows Service Manager.
   • Handle automatic startup on boot.
3. Develop Launch Daemon for macOS #132
   • Develop a launch daemon configuration for macOS.
   • Implement logic to handle startup, stop, and restart of the agent.
   • Test functionality with launchctl to ensure seamless background operation.
4. Documentation:
   • Document service installation and management commands for each platform.

[aritosteles]

Update

• 2024/10/17:
  Systemd issue takes precedence over Windows and macOs issues in preparation for MVP presentation. Last minute requests and adjustments.
  • New command line parameter --config-path added to wazuh-agent.
  • ConfigurationParser class modified to take a path to the configuration file in the constructor.
  • Agent class modified to take path to configuration file in constructor and pass it along to the configuration parser.
  • UnixDaemon class back to handling PID files and taking care of checking for previous instances and stopping the agent process.
  • Rebased to master and PR up for review and merge.