mongo connexion fix

Author: OmarChouchane

mern/backend/db/connection.js

@@ -1,6 +1,6 @@
 import { MongoClient, ServerApiVersion } from "mongodb";
 
-const URI = "mongodb://mongodb:27017";
+const URI = process.env.MONGODB_URI || "mongodb://mongo:27017";
 const client = new MongoClient(URI, {
   serverApi: {
     version: ServerApiVersion.v1,

mern/docker-compose.yaml

@@ -0,0 +1,39 @@
+services:
+  frontend:
+    build: ./frontend
+    ports:
+      - "5173:5173"
+    networks:
+      - mern
+  backend:
+    build: ./backend
+    ports:
+      - "5050:5050"
+    networks:
+      - mern
+    environment:
+      - MONGODB_URI=mongodb://mongo:27017
+    depends_on:
+      mongo:
+        condition: service_healthy
+  mongo:
+    image: mongo:latest
+    ports:
+      - "27017:27017"
+    networks:
+      - mern
+    volumes:
+      - mongo-data:/data/db
+    healthcheck:
+      test: ["CMD", "mongosh", "--eval", "db.runCommand({ ping: 1 })"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+networks:
+  mern:
+    driver: bridge
+
+volumes:
+  mongo-data:
+    driver: local