diff --git a/observabilite_applicatif/Machine_applicatif/Tuto_install_applicatif.txt b/observabilite_applicatif/Machine_applicatif/Tuto_install_applicatif.txt
new file mode 100644
index 0000000..7a68575
--- /dev/null
+++ b/observabilite_applicatif/Machine_applicatif/Tuto_install_applicatif.txt
@@ -0,0 +1,113 @@
+1. Préparation de la VM Applicatif (192.168.56.30) 
+
+1.1 Mise à jour du système 
+
+sudo apt update && sudo apt upgrade -y 
+
+1.2 Installation de Java et Maven
+
+sudo apt install -y openjdk-17-jdk maven
+java -version
+mvn -version
+
+1.3 Installation de Tomcat
+cd /opt
+sudo wget https://dlcdn.apache.org/tomcat/tomcat-10/v10.1.47/bin/apache-tomcat-10.1.47.tar.gz
+sudo tar -xvzf apache-tomcat-10.1.47.tar.gz
+
+sudo mv apache-tomcat-10.1.47 tomcat
+sudo chown -R vagrant:vagrant /opt/tomcat
+
+nano ~/.bashrc
+export CATALINA_HOME=/opt/tomcat
+export PATH=$PATH:$CATALINA_HOME/bin
+source ~/.bashrc
+
+sudo nano /etc/systemd/system/tomcat.service
+------------------
+[Unit]
+Description=Apache Tomcat 10.1.47
+After=network.target
+
+[Service]
+Type=forking
+Environment=JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
+Environment=CATALINA_HOME=/opt/tomcat
+ExecStart=/opt/tomcat/bin/startup.sh
+ExecStop=/opt/tomcat/bin/shutdown.sh
+User=vagrant
+Group=vagrant
+RestartSec=10
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+
+----------------------------------------------
+
+
+sudo systemctl daemon-reload
+sudo systemctl enable tomcat
+sudo systemctl start tomcat
+sudo systemctl status tomcat
+
+
+1.4 Déploiement de l’application Java
+Copie du fichier .war depuis le PC hôte:                                       # debrouille toi
+scp target/archiweb-api-1.0.0.war vagrant@192.168.56.31:/tmp/
+sudo cp /tmp/archiweb-api-1.0.0.war /opt/tomcat/webapps/
+
+
+sudo mv /opt/tomcat/webapps/archiweb-api-1.0.0.war /opt/tomcat/webapps/api.war
+
+
+
+2. Base de données PostgreSQL (hébergée sur la vm)
+2.1
+sudo apt update && sudo apt upgrade -y
+sudo apt install postgresql postgresql-contrib -y
+sudo systemctl status postgresql(Facultatif)
+
+Vérifier postgresql.conf afin que # listen_addresses = 'localhost'
+La commande pour le faire :sudo nano /etc/postgresql/15/main/postgresql.conf
+2.2 Création de la base 
+sudo apt update
+sudo apt upgrade -y
+sudo apt install -y wget gnupg lsb-release
+
+# Ajouter le dépôt officiel PostgreSQL
+echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" | sudo tee /etc/apt/sources.list.d/pgdg.list
+wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
+sudo apt update
+
+# Installer le serveur PostgreSQL
+sudo apt install -y postgresql-18
+
+sudo -u postgres psql <<EOF
+CREATE DATABASE archiweb_db;
+CREATE USER archiweb_user WITH ENCRYPTED PASSWORD 'archiweb_pass';
+GRANT ALL PRIVILEGES ON DATABASE archiweb_db TO archiweb_user;
+\q
+EOF
+
+
+sudo nano /etc/postgresql/18/main/pg_hba.conf
+local   all             all                                     md5
+sudo systemctl restart postgresql
+sudo systemctl status postgresql
+
+sudo -u postgres psql
+
+DROP DATABASE IF EXISTS archiweb_db;
+CREATE DATABASE archiweb_db OWNER archiweb_user;
+\q
+
+psql -U archiweb_user -d archiweb_db -f /vagrant/database/schema.sql
+psql -U archiweb_user -d archiweb_db -f /vagrant/database/data.sql           
+
+Mdp:(archiweb_pass)
+
+
+
+http://192.168.56.31:8080/api/utilisateurs
+
diff --git a/observabilite_applicatif/Machine_applicatif/Tutu_monitoring.txt b/observabilite_applicatif/Machine_applicatif/Tutu_monitoring.txt
new file mode 100644
index 0000000..f5ce7d0
--- /dev/null
+++ b/observabilite_applicatif/Machine_applicatif/Tutu_monitoring.txt
@@ -0,0 +1,98 @@
+sudo mkdir -p /opt/promtail
+cd /opt/promtail
+sudo wget https://github.com/grafana/loki/releases/download/v3.1.1/promtail-linux-amd64.zip
+sudo apt install -y unzip   # si nécessaire
+sudo unzip promtail-linux-amd64.zip
+sudo mv promtail-linux-amd64 promtail
+sudo chmod +x promtail
+sudo useradd -r -s /bin/false promtail || true
+sudo chown -R promtail:promtail /opt/promtail
+
+
+root@vmApplicatif:~# cd /etc/
+root@vmApplicatif:/etc# mkdir promtail
+                         cd promtail
+root@vmApplicatif:/etc/promtail# nano config-promtail.yaml
+
+-------------
+
+server:
+  http_listen_port: 9080
+  grpc_listen_port: 0
+
+positions:
+  filename: /tmp/positions.yaml
+
+clients:
+  - url: http://192.168.56.30:3100/loki/api/v1/push
+
+scrape_configs:
+
+- job_name: tomcat
+  static_configs:
+      - targets:
+          - localhost
+        labels:
+          job: tomcat
+          host: applicatif-vm
+          type: catalina
+          __path__: /opt/tomcat/logs/catalina*.log
+      - targets:
+          - localhost
+        labels:
+          job: tomcat
+          host: applicatif-vm
+          type: localhost
+          __path__: /opt/tomcat/logs/localhost*.log
+      - targets:
+          - localhost
+        labels:
+          job: tomcat
+          host: applicatif-vm
+          type: access
+          __path__: /opt/tomcat/logs/localhost_access_log*.txt
+      - targets:
+          - localhost
+        labels:
+          job: tomcat
+          host: applicatif-vm
+          type: out
+          __path__: /opt/tomcat/logs/catalina.out
+
+
+---------------------------
+
+nano /etc/systemd/system/promtail.service
+
+[Unit]
+Description=Promtail service
+After=network.target
+
+[Service]
+User=promtail
+ExecStart=/opt/promtail/promtail-linux-amd64 -config.file=/etc/promtail/config-promtail.yaml
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+
+--------------------------
+
+sudo systemctl daemon-reload
+sudo systemctl enable --now promtail
+sudo systemctl start promtail
+sudo systemctl status promtail
+
+sudo ls -ld /opt/tomcat/logs 
+sudo ls -l /opt/tomcat/logs | head
+
+
+# Donner la propriété complète à tomcat
+sudo chown -R tomcat:tomcat /opt/tomcat/logs
+
+# Donner les droits d'accès comme dans ton exemple
+sudo chmod 750 /opt/tomcat/logs
+
+# Donner des droits de lecture/écriture classiques aux fichiers de logs
+sudo chmod 640 /opt/tomcat/logs/*
+