test node in server

Dockerfile

@@ -0,0 +1,5 @@
+FROM node:12.16
+COPY \node\package.json /home/node/app/
+
+
+

docker-compose.yml

@@ -1,26 +1,31 @@
 version: "3"
 services:
  node:
- image: node:13.8
+ image: node:12.16
  user: "node"
+ build: .
  working_dir: /home/node/app
  environment:
  - NODE_ENV=production
- volumes:
- - ./node/.:/home/node/app
+ depends_on: 
+ - db
+ # volumes:
+ # - ./node:/home/node/app
  expose:
  - "8888"
- command: "npm start"
+ command: bash -c
+ "npm install
+ && npm start"
  db:
  image: postgres:12.2
  restart: always
  environment: 
  POSTGRES_USER: postgres
  POSTGRES_PASSWORD: postgres
  POSTGRES_DB: postgres
- depends_on: 
- - node
  volumes: 
  - ./pgdata:/home/postgres/postgresql/data
  ports: 
- - '5432:5432'
+ - '5432:5432'
+ expose: 
+ - "5432"

node/index.js

@@ -2,7 +2,7 @@ const { Client } = require('pg');
 const client = new Client({
  user: "postgres",
  password: "postgres",
- host: "localhost",
+ host: "db",
  port: 5432,
  database: "postgres",
 })
@@ -13,6 +13,7 @@ async function execute() {
  try {
  await client.connect()
  console.log("connect successfully")
+ await client.query("create table ")
  const results = await client.query("select * from test")
  console.table(results.rows)
  await client.end()