docker-compose is now working

(beware for wsl: microsoft/WSL#1854 and docker/for-win#371 (comment))

.env

@@ -0,0 +1 @@
+MONGODB_APPLICATION_DATABASE=app_db_name

Dockerfile

@@ -2,9 +2,7 @@ FROM node:8-alpine
 
 WORKDIR /usr/app
 
-ADD . /usr/app
+COPY package.json .
 RUN npm install --quiet
 
-EXPOSE 8080
-
-CMD ["npm", "start"]
+COPY . .

docker-compose.yml

@@ -0,0 +1,30 @@
+version: "3"
+services:
+  web:
+    build: .
+#    deploy:
+#      replicas: 5
+#      resources:
+#        limits:
+#          cpus: "0.1"
+#          memory: 50M
+#      restart_policy:
+#        condition: on-failure
+    volumes:
+      - .:/usr/app
+    command: npm start
+    ports:
+      - "80:8080"
+    networks:
+      - webnet
+#    depends_on:
+#      - mongodb
+    env_file: .env
+
+#  mongodb:
+#    image: mvertes/alpine-mongo
+#    ports:
+#      - "27017:27017"
+
+networks:
+  webnet:

server/server.js

@@ -9,6 +9,7 @@ const HOST = '0.0.0.0';
 // App
 const app = express();
 const host = process.env.HOSTNAME || '0.0.0.0';
+
 app.get('/', (req, res) => {
   res.send(`<h1>Hello world!!</h1><p>${host}</p>`);
 });