feat(ansible): optimize HAProxy service management in playbook

[smerlos]

This PR introduces optimized tasks for managing the HAProxy service in the Ansible playbook.

Changes:

1. Check HAProxy installation

   • Verified the existence of /etc/haproxy/haproxy.cfg.
   • Registered the result to determine if HAProxy is installed.

2. Check current state of HAProxy service

   • Used the systemd module to check if the HAProxy service is started.
   • Registered the service status for conditional operations.

3. Ensure HAProxy is enabled and running

   • Added a task to enable and start HAProxy if it is installed but not currently running.

4. Restart HAProxy if not previously installed

   • Implemented a task to restart HAProxy with daemon reload if it was not previously installed.

5. Reload HAProxy if already installed and running

   • Added a task to reload HAProxy to apply configuration changes if it is already installed and running.

Rationale:

These changes improve the robustness and reliability of the HAProxy service management by:

• Ensuring that the service is properly enabled and started when required.
• Reducing redundancy in task execution.
• Handling different states of the HAProxy service more accurately to prevent potential downtimes and inconsistencies.

Closing the Issue with PR

Closing Issue:

Closes #90

[nutellinoit]

Is this PR ready? I changed the target base to feat/v1.29.3-rev.2