Update docker-compose.yml

docker-compose.yml

@@ -1,20 +1,41 @@
 version: '3.8'
 
 services:
+  db:
+    image: mysql:8.0
+    container_name: email_templates_db
+    environment:
+      MYSQL_ROOT_PASSWORD: rootpassword
+      MYSQL_DATABASE: email_templates
+      MYSQL_USER: appuser
+      MYSQL_PASSWORD: apppassword
+    ports:
+      - "3306:3306"
+    volumes:
+      - db_data:/var/lib/mysql
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
+      timeout: 20s
+      retries: 10
+
   app:
     build: .
+    container_name: email_templates_app
     ports:
       - "3000:3000"
     environment:
-      # Database Connection Configuration
-      # We removed the ':-default' syntax. 
-      # Now, the container will strictly use what is provided by the host environment.
-      - DB_TYPE=${DB_TYPE}
-      - DB_HOST=${DB_HOST}
-      - DB_PORT=${DB_PORT}
-      - DB_USER=${DB_USER}
-      - DB_PASSWORD=${DB_PASSWORD}
-      - DB_NAME=${DB_NAME}
-      
-      # Application Keys
-      - API_KEY=${API_KEY}
+      DB_HOST: db
+      DB_USER: appuser
+      DB_PASSWORD: apppassword
+      DB_NAME: email_templates
+      DB_PORT: 3306
+      DB_TYPE: mysql
+      API_KEY: ${API_KEY}
+    depends_on:
+      db:
+        condition: service_healthy
+    restart: unless-stopped
+
+volumes:
+  db_data: