Update to Compose 2 syntax

docker-compose.yml

@@ -1,7 +1,23 @@
+version: '2'
+services:
+  app:
+    container_name: app
+    image: node:latest
+    command: "npm run watch"
+    working_dir: /app
+    links:
+     - db
+    volumes:
+     - .:/app
+    ports:
+     - "3000:80"
+    environment:
+     - NODE_ENV=docker
   db:
+    container_name: db
     image: mongo:latest
     command: "--smallfiles"
-  ports:
-   - 27017:27017
     volumes:
-   - ~/db:/data/db
+     - ./db:/data/db
+    expose:
+     - 27017

production.yml

@@ -1,20 +0,0 @@
-node:
-  image: node:latest
-  command: "npm start"
-  working_dir: /app
-  links:
-   - db
-  environment:
-   - NODE_ENV=docker
-  volumes:
-   - .:/app
-  ports:
-   - 3000:80
-
-db:
-  image: mongo:latest
-  command: "--smallfiles"
-  volumes:
-   - ./db:/data/db
-  expose:
-   - 27017