Refactor llama_server role for Windows support and EL-specific setup

- Added Windows-specific tasks for llama_server role, including installation of dependencies, setup of services using NSSM, and configuration of firewall rules.
- Introduced a new task file for Windows Exporter setup.
- Consolidated EL-specific setup tasks into a separate include file.
- Updated inventory to include additional host for llama server.
- Adjusted error handling in Prometheus service removal task to prevent failures.

ansible/roles/llama_server/tasks/el/llama_exporter.yml

@@ -0,0 +1,73 @@
+---
+- name: Create llama_exporter group
+  become: true
+  ansible.builtin.group:
+    name: "{{ llama_server_exporter_user }}"
+    state: present
+    system: true
+
+- name: Create llama_exporter user
+  become: true
+  ansible.builtin.user:
+    name: "{{ llama_server_exporter_user }}"
+    group: "{{ llama_server_exporter_user }}"
+    home: "{{ llama_server_exporter_user_home }}"
+    create_home: true
+    shell: /usr/sbin/nologin
+    system: true
+
+- name: Create llama_exporter install directory
+  become: true
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: "{{ llama_server_exporter_user }}"
+    group: "{{ llama_server_exporter_user }}"
+    mode: "0755"
+  loop:
+    - "{{ llama_server_exporter_install_dir }}"
+    - "{{ llama_server_exporter_install_dir }}/logs"
+
+- name: Copy llama_exporter script
+  become: true
+  ansible.builtin.copy:
+    src: scripts/llama_exporter.py
+    dest: "{{ llama_server_exporter_script_path }}"
+    owner: "{{ llama_server_exporter_user }}"
+    group: "{{ llama_server_exporter_user }}"
+    mode: "0755"
+  notify:
+    - Restart llama_exporter
+
+- name: Create Python virtual environment
+  become: true
+  ansible.builtin.command:
+    cmd: "{{ ansible_facts['python']['executable'] }} -m venv {{ llama_server_exporter_venv_path }}"
+    creates: "{{ llama_server_exporter_venv_path }}/bin/activate"
+
+- name: Fix ownership of llama_exporter directory
+  become: true
+  ansible.builtin.file:
+    path: "{{ llama_server_exporter_install_dir }}"
+    owner: "{{ llama_server_exporter_user }}"
+    group: "{{ llama_server_exporter_user }}"
+    recurse: true
+
+- name: Generate llama_exporter systemd service
+  become: true
+  ansible.builtin.template:
+    src: llama_exporter.service.j2
+    dest: "/etc/systemd/system/{{ llama_server_exporter_service_name }}.service"
+    owner: root
+    group: root
+    mode: "0644"
+  notify:
+    - Reload systemd daemon
+    - Restart llama_exporter
+
+- name: Enable llama_exporter service
+  become: true
+  ansible.builtin.systemd:
+    name: "{{ llama_server_exporter_service_name }}"
+    enabled: true
+    state: started