Refactor: Organize Ansible project structure

- Reorganized Ansible project structure to follow best practices.
- Created dedicated directories: , , , , and .
- Categorized playbooks into  (host-specific) and  (service-specific).
- Moved all roles into the  directory and standardized their naming conventions.
- Relocated  to  for better variable management.
- Renamed  to  to reflect its global variable scope.
- Created  to correctly set the  to the new  directory.
- Moved  and  into the  directory.
- Added  to  providing explanations for common commands.
- Cleaned up  directories from all individual roles to centralize version control.

roles/docker/tasks/docker-compose.yml

@@ -0,0 +1,31 @@
+---
+- name: Check current docker-compose version.
+  command: "{{ docker_compose_path }} --version"
+  register: docker_compose_vsn
+  check_mode: false
+  changed_when: false
+  failed_when: false
+
+- set_fact:
+    docker_compose_current_version: "{{ docker_compose_vsn.stdout | regex_search('(\\d+(\\.\\d+)+)') }}"
+  when: >
+    docker_compose_vsn.stdout is defined
+    and (docker_compose_vsn.stdout | length > 0)
+
+- name: Delete existing docker-compose version if it's different.
+  file:
+    path: "{{ docker_compose_path }}"
+    state: absent
+  when: >
+    docker_compose_current_version is defined
+    and (docker_compose_version | regex_replace('v', '')) not in docker_compose_current_version
+
+- name: Install Docker Compose (if configured).
+  get_url:
+    url: "{{ docker_compose_url }}"
+    dest: "{{ docker_compose_path }}"
+    mode: 0755
+  when: >
+    (docker_compose_current_version is not defined)
+    or (docker_compose_current_version | length == 0)
+    or (docker_compose_current_version is version((docker_compose_version | regex_replace('v', '')), '<'))