diff --git a/observability/commande_docker.md b/observability/commande_docker.md
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+++ b/observability/commande_docker.md
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+# methode 1
+# Arrêter tous les containers
+docker stop $(docker ps -aq)
+
+# Supprimer tous les containers
+docker rm -f $(docker ps -aq)
+
+# Supprimer toutes les images
+docker rmi -f $(docker images -q)
+
+# Supprimer tous les volumes
+docker volume rm $(docker volume ls -q)
+
+# Supprimer tous les réseaux personnalisés
+docker network rm $(docker network ls -q | grep -v "bridge\|host\|none")
+
+# verifier que tt est propre 
+docker system df
+
+
+
+# methode 2
+docker system prune -a --volumes --force
+
+# Pour construire
+
+docker compose up --build
\ No newline at end of file
diff --git a/observability/docker-compose.yml b/observability/docker-compose.yml
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+++ b/observability/docker-compose.yml
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+version: "3.8"
+
+services:
+  prometheus:
+    image: prom/prometheus:latest
+    container_name: prometheus-observability
+    volumes:
+      - ./prometheus.yml:/etc/prometheus/prometheus.yml
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+    ports:
+      - "9090:9090"
+    restart: unless-stopped
+    networks:
+      - observability
+
+  grafana:
+    image: grafana/grafana:latest
+    container_name: grafana-observability
+    ports:
+      - "3000:3000"
+    volumes:
+      - grafana-data:/var/lib/grafana
+    environment:
+      - GF_SECURITY_ADMIN_USER=admin
+      - GF_SECURITY_ADMIN_PASSWORD=admin
+    restart: unless-stopped
+    depends_on:
+      - loki
+    networks:
+      - observability
+
+  loki:
+    image: grafana/loki:2.8.2
+    container_name: loki-observability
+    ports:
+      - "3100:3100"
+    command: -config.file=/etc/loki/local-config.yaml
+    volumes:
+      - ./loki-config.yaml:/etc/loki/local-config.yaml
+    restart: unless-stopped
+    networks:
+      - observability
+
+  promtail:
+    image: grafana/promtail:2.8.2
+    container_name: promtail-observability
+    volumes:
+      - ./promtail-config.yaml:/etc/promtail/config.yaml
+      - /var/lib/docker/containers:/var/lib/docker/containers:ro  # Permet de lire les logs des containers Docker
+    command:
+      - -config.file=/etc/promtail/config.yaml
+    restart: unless-stopped
+    networks:
+      - observability
+
+volumes:
+  grafana-data:
+
+networks:
+  observability:
+    driver: bridge
diff --git a/observability/loki-config.yaml b/observability/loki-config.yaml
new file mode 100644
index 0000000..06c3e19
--- /dev/null
+++ b/observability/loki-config.yaml
@@ -0,0 +1,44 @@
+auth_enabled: false
+
+server:
+  http_listen_port: 3100
+
+ingester:
+  lifecycler:
+    ring:
+      kvstore:
+        store: inmemory
+      replication_factor: 1
+  chunk_idle_period: 5m
+  chunk_retain_period: 30s
+  max_transfer_retries: 0
+
+schema_config:
+  configs:
+    - from: 2020-10-24
+      store: boltdb-shipper
+      object_store: filesystem
+      schema: v11
+      index:
+        prefix: index_
+        period: 24h
+
+storage_config:
+  boltdb_shipper:
+    active_index_directory: /loki/index
+    cache_location: /loki/cache
+    shared_store: filesystem
+  filesystem:
+    directory: /loki/chunks
+
+limits_config:
+  enforce_metric_name: false
+  reject_old_samples: true
+  reject_old_samples_max_age: 168h
+
+chunk_store_config:
+  max_look_back_period: 0s
+
+table_manager:
+  retention_deletes_enabled: false
+  retention_period: 0s
diff --git a/observability/prometheus.yml b/observability/prometheus.yml
new file mode 100644
index 0000000..db48adc
--- /dev/null
+++ b/observability/prometheus.yml
@@ -0,0 +1,7 @@
+global:
+  scrape_interval: 15s
+
+scrape_configs:
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
diff --git a/observability/promtail-config.yaml b/observability/promtail-config.yaml
new file mode 100644
index 0000000..c8e42a6
--- /dev/null
+++ b/observability/promtail-config.yaml
@@ -0,0 +1,18 @@
+server:
+  http_listen_port: 9080
+  grpc_listen_port: 0
+
+positions:
+  filename: /tmp/positions.yaml
+
+clients:
+  - url: http://loki-observability:3100/loki/api/v1/push  # URL du service Loki
+
+scrape_configs:
+  - job_name: 'docker-containers'
+    static_configs:
+      - targets:
+          - localhost
+        labels:
+          job: docker
+          __path__: /var/lib/docker/containers/*/*.log  # Chemin vers les logs Docker