diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..193b26c
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,34 @@
+# === Étape 1 : Build ===
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Copier les fichiers de dépendances pour profiter du cache Docker
+COPY package*.json ./
+
+# Installer uniquement ce qu'il faut pour le build
+RUN npm ci
+
+# Copier tout le code
+COPY . .
+
+# Build Next.js pour la production
+RUN npm run build
+
+# === Étape 2 : Runner léger ===
+FROM node:20-alpine AS runner
+
+WORKDIR /app
+
+# Copier uniquement ce qui est nécessaire pour la prod
+COPY --from=builder /app/package*.json ./
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+
+# Mode production
+ENV NODE_ENV=production
+EXPOSE 3000
+
+# Lancer le serveur Next.js
+CMD ["npm", "start"]
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diff --git a/docker-compose.yml b/docker-compose.yml
index 502a1f0..a47d63b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,10 +1,11 @@
 services:
-  sudoku-app:
-    image: node:20-alpine
-    working_dir: /app
+  web:
+    build: .
+    ports:
+      - "3000:3000"
     volumes:
       - ./:/app
-    command: sh -c "npm install && npm run build && npm start"
-    ports:
-      - "3005:3000"
-    restart: unless-stopped
\ No newline at end of file
+      - /app/node_modules
+    environment:
+      - NODE_ENV=development
+    command: npm run dev
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