diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index aadd824..c50350d 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -13,7 +13,7 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "ISEN/Cloud Computing/CIPA4/TP 4 Ansible.md",
+                "file": "ISEN/Cloud Computing/CIPA4/TP 3 Ansible.md",
                 "mode": "source",
                 "source": false,
                 "backlinks": true,
@@ -28,7 +28,7 @@
                 }
               },
               "icon": "lucide-file",
-              "title": "TP 4 Ansible"
+              "title": "TP 3 Ansible"
             }
           }
         ]
@@ -206,8 +206,8 @@
   },
   "active": "e11a6a080eb83632",
   "lastOpenFiles": [
-    "ISEN/Cloud Computing/CIPA4/TP 3 Ansible.md",
     "ISEN/Cloud Computing/CIPA4/TP 4 Ansible.md",
+    "ISEN/Cloud Computing/CIPA4/TP 3 Ansible.md",
     "ISEN/Cloud Computing/CIPA4/Cloud Computing Cours 1.md",
     "ISEN/Cloud Computing/CIPA4/TP 2 Ansible.md",
     "ISEN/Cloud Computing/CIPA4/TP 1 Ansible.md",
diff --git a/ISEN/Cloud Computing/CIPA4/TP 3 Ansible.md b/ISEN/Cloud Computing/CIPA4/TP 3 Ansible.md
index 9403356..5c23ace 100644
--- a/ISEN/Cloud Computing/CIPA4/TP 3 Ansible.md	
+++ b/ISEN/Cloud Computing/CIPA4/TP 3 Ansible.md	
@@ -126,4 +126,18 @@ handlers:
 	service:
 	  name: nginx
 	  state: restarted
+```
+
+#### Fichier : `templates/nginx.conf.j2`
+```nginx
+server {     
+	listen {{ proxy_port }};    
+	server_name {{ server_name }};     
+	
+	location / {        
+		proxy_pass http://127.0.0.2:{{ flask_port }};        
+		proxy_set_header Host $host;        
+		proxy_set_header X-Real-IP $remote_addr;    
+	} 
+}
 ```
\ No newline at end of file
diff --git a/ISEN/Cloud Computing/CIPA4/TP 4 Ansible.md b/ISEN/Cloud Computing/CIPA4/TP 4 Ansible.md
index ffe1623..8eb6753 100644
--- a/ISEN/Cloud Computing/CIPA4/TP 4 Ansible.md	
+++ b/ISEN/Cloud Computing/CIPA4/TP 4 Ansible.md	
@@ -6,124 +6,93 @@ ssh root@135.125.246.84
 mdp : moutarde42
 
 ### Step2
-```yml
----
-- hosts: demo
-  gather_facts: yes
-  tasks:
-  - name: Install the git package
-	apt:
-		name: git
-		state: present
-  - name: Clone my flask application
-	git:
-		repo: 'https://github.com/arnaudmorin/demo-flask.git'
-		dest: /root/demo-flask
+### 1. Structure des dossiers
+```bash
+
+mkdir -p roles/{flask_app,nginx_proxy}/tasks roles/{flask_app,nginx_proxy}/templates roles/{flask_app,nginx_proxy}/handlers
 ```
 
-### Step3
+### 2. Rôle `flask_app`
+#### Fichier : `roles/flask_app/tasks/main.yml`
 ```yaml
----
-- hosts: demo
-	gather_facts: yes
-	tasks:
-	- name: Install the git package
-		apt:
-			name: git
-			state: present
-	- name: Clone my flask application
-		git:
-			repo: 'https://github.com/arnaudmorin/demo-flask.git'
-			dest: /root/demo-flask
-	- name: Install pip
-		apt:
-			name: python3-pip
-			state: present
-	- name: Install flask requirements
-		pip:
-			requirements: /root/demo-flask/requirements.txt
+--- 
+- name: Installer le paquet git   
+  apt:    
+    name: git    
+    state: present 
+- name: Cloner l'application Flask   
+  git:    
+    repo: 'https://github.com/arnaudmorin/demo-flask.git'    
+    dest: /root/demo-flask 
+- name: Installer pip   
+  apt:    
+    name: python3-pip    
+    state: present 
+- name: Installer les dépendances Flask   
+  pip:    
+    requirements: /root/demo-flask/requirements.txt 
+- name: Démarrer l'application Flask en arrière-plan   
+  shell: "nohup /root/demo-flask/start.sh &"
 ```
 
-### Step4
+### 3. Rôle `nginx_proxy`
+#### Fichier : `roles/nginx_proxy/tasks/main.yml`
 ```yaml
----
-- hosts: demo
-	gather_facts: yes
-	tasks:
-	- name: Install the git package
-		apt:
-			name: git
-			state: present
-	- name: Clone my flask application
-		git:
-			repo: 'https://github.com/arnaudmorin/demo-flask.git'
-			dest: /root/demo-flask
-	- name: Install pip
-		apt:
-			name: python3-pip
-			state: present
-	- name: Install flask requirements
-		pip:
-			requirements: /root/demo-flask/requirements.txt
-	- name: Start the flask application in background
-		shell: "nohup /root/demo-flask/start.sh &"
+`--- 
+- name: Installer Nginx   
+  apt:    
+    name: nginx    
+    state: present 
+- name: Configurer Nginx comme reverse proxy   
+  template:    
+    src: nginx.conf.j2    
+    dest: /etc/nginx/sites-available/{{ server_name }}  
+  notify: Restart Nginx 
+- name: Activer la configuration du site   
+  file:    
+    src: /etc/nginx/sites-available/{{ server_name }}    
+    dest: /etc/nginx/sites-enabled/{{ server_name }}    
+    state: link  
+  notify: Restart Nginx`
+```
+#### Fichier : `roles/nginx_proxy/handlers/main.yml`
+```yaml
+--- 
+- name: Restart Nginx   
+  service:    
+    name: nginx    
+    state: restarted`
+```
+#### Fichier : `roles/nginx_proxy/templates/nginx.conf.j2`
+```nginx
+server {     
+	listen {{ proxy_port }};    
+	server_name {{ server_name }};     
+	
+	location / {        
+		proxy_pass http://127.0.0.2:{{ flask_port }};        
+		proxy_set_header Host $host;        
+		proxy_set_header X-Real-IP $remote_addr;    
+	} 
+}
 ```
 
-### Step5
-```Yaml
+### 4. Playbook principal
+
+#### Fichier : `playbook-role.yml`
+```yaml
+
 ---
-- hosts: demo
-  gather_facts: yes
-  tasks:
-  - name: Installer le paquet git
-	apt:
-	  name: git
-	  state: present
-  - name: Cloner mon application Flask
-	git:
-	  repo: 'https://github.com/arnaudmorin/demo-flask.git'
-	  dest: /root/demo-flask
-  - name: Installer pip
-	apt:
-	  name: python3-pip
-	  state: present
-  - name: Installer les dépendances Flask
-	pip:
-	  requirements: /root/demo-flask/requirements.txt
-  - name: Démarrer l'application Flask en arrière-plan
-	shell: "nohup /root/demo-flask/start.sh &"
-  
-
-- hosts: localhost
-  become: yes
-  vars:
-	proxy_port: 80
-	flask_port: 8080
-	server_name: "135.125.246.84"
-  tasks:
-  - name: Installer Nginx
-	apt:
-	  name: nginx
-	  state: present
-  - name: Configurer Nginx comme reverse proxy
-	template:
-	  src: nginx.conf.j2
-	  dest: /etc/nginx/sites-available/demo
-	notify: Restart Nginx
-  - name: Activer la configuration du site
-	file:
-	  src: /etc/nginx/sites-available/demo
-	  dest: /etc/nginx/sites-enabled/demo
-	  state: link
-	notify: Restart Nginx
-  - name: Afficher l'URL d'accès au site
-	debug:
-	  msg: "Votre application est accessible à l'URL : http://{{ server_name }}"
-  
-
-handlers:
-  - name: Restart Nginx
-	service:
-	  name: nginx
-	  state: restarted
+- hosts: demo   
+  roles:    
+  - flask_app 
+    
+- hosts: localhost   
+  become: yes  
+  vars:    
+    proxy_port: 80    
+    flask_port: 8080    
+    server_name: "135.125.246.84"
+  roles:    
+    - role: nginx_proxy
 ```
\ No newline at end of file