docker initialize

+/app/config
+/app/node/node_modules
\ No newline at end of file

+version: "3"
+services:
+
+ web:
+  image: nginx
+  container_name: nginx
+  ports:
+   - "8081:80"
+  networks:
+   mynet:
+    ipv4_address: 172.28.0.2
+  volumes:
+   - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf
+   - ./web:/var/www/html
+  restart: on-failure
+  links:
+   - app
+
+ app:
+  image: node
+  container_name: node
+  ports:
+   - "8082:80"
+  networks:
+   mynet:
+    ipv4_address: 172.28.0.3
+  working_dir: /app
+  volumes:
+   - ./node:/app
+   - ./config:/app/config
+  command: bash -c "npm install && node app.js"
+  environment:
+   - NODE_ENV=production
+  links:
+   - db
+  depends_on:
+   - db
+  restart: on-failure
+
+ db:
+  image: mariadb:10.2
+  container_name: mariadb10.2
+  ports:
+   - "33066:3306"
+  networks:
+   mynet:
+    ipv4_address: 172.28.0.4
+  volumes:
+   - mariadb:/var/lib/mysql
+   - ./config:/config
+  environment:
+   MYSQL_ROOT_PASSWORD_FILE: ./config/db_password.txt
+   MYSQL_DATABASE: maple
+   MYSQL_USER: maple
+   MYSQL_PASSWORD_FILE: ./config/db_password.txt
+   TZ: Asia/Seoul
+  command: --character_set_client=utf8 --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci --character-set-client-handshake=FALSE
+  restart: on-failure
+
+volumes:
+  mariadb:
+
+networks:
+  mynet:
+    ipam:
+      driver: default
+      config:
+        - subnet: 172.28.0.0/16
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+server {
+        listen   80;
+        server_name  localhost;
+        access_log  /var/log/nginx/access.log.1;
+        error_log /var/log/nginx/error.log.1;
+
+        location /api {
+                proxy_pass http://172.28.0.3;
+        }
+
+	location / {
+		root /var/www/html;
+		index index.html;
+	}
+}
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+var express = require('express');
+var app = express();
+var bodyParser = require('body-parser');
+var mysql = require('mysql');
+var fs = require('fs');
+
+app.use(bodyParser.urlencoded({ extended: false }));
+app.use(bodyParser.json());
+
+var db;
+
+fs.readFile('./config/db_password.txt', function(err, data) {
+	db = mysql.createConnection({
+	  host: "172.28.0.4",
+	  port: 3306,
+	  user: "root",
+	  password: data,
+	  database: "mysql"
+	});
+
+	db.connect();
+});
+
+app.get('/query', function (req, res) {
+    db.query("SHOW DATABASES",
+      function(err, results, fields) {
+        if (err) throw err;
+        var string = JSON.stringify(results);
+        res.send(string);
+      }
+    );
+});
+
+var server = app.listen(80);
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+{
+  "name": "node",
+  "version": "1.0.0",
+  "description": "",
+  "main": "app.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.17.1",
+    "http": "0.0.1-security",
+    "mysql": "^2.18.1"
+  }
+}

+hello world
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