feat(ansible): Add nginx role tasks

ansible/webserver-automation/roles/nginx/tasks/main.yml

@@ -0,0 +1,66 @@
+---
+# Nginx role - Web server installation and configuration
+
+- name: Install Nginx
+  apt:
+    name: nginx
+    state: present
+    update_cache: true
+  tags: ['install']
+
+- name: Ensure Nginx is started and enabled
+  service:
+    name: nginx
+    state: started
+    enabled: true
+  tags: ['service']
+
+- name: Create web root directory
+  file:
+    path: "{{ app_dir }}"
+    state: directory
+    owner: "{{ app_user }}"
+    group: "{{ app_group }}"
+    mode: '0755'
+  tags: ['setup']
+
+- name: Remove default Nginx site
+  file:
+    path: /etc/nginx/sites-enabled/default
+    state: absent
+  notify: reload nginx
+  tags: ['config']
+
+- name: Create Nginx site configuration
+  template:
+    src: nginx-site.conf.j2
+    dest: "/etc/nginx/sites-available/{{ app_name }}"
+    mode: '0644'
+  notify: reload nginx
+  tags: ['config']
+
+- name: Enable Nginx site
+  file:
+    src: "/etc/nginx/sites-available/{{ app_name }}"
+    dest: "/etc/nginx/sites-enabled/{{ app_name }}"
+    state: link
+  notify: reload nginx
+  tags: ['config']
+
+- name: Create sample index.html
+  template:
+    src: index.html.j2
+    dest: "{{ app_dir }}/index.html"
+    owner: "{{ app_user }}"
+    group: "{{ app_group }}"
+    mode: '0644'
+  tags: ['content']
+
+- name: Test Nginx configuration
+  command: nginx -t
+  changed_when: false
+  tags: ['verify']
+
+- name: Display status
+  debug:
+    msg: "✅ Nginx configured - Port {{ nginx_port }}"