feat: каркас Express + pg, health check

2026-05-29 21:56:20 +03:00
commit 814625ef57
5 changed files with 114 additions and 0 deletions
@@ -0,0 +1,16 @@
+# База данных
+DB_HOST=your-db-host.svc.cluster.local
+DB_PORT=5432
+DB_NAME=postgres
+DB_USER=your-user
+DB_PASS=your-password
+DB_SSLMODE=require
+
+# Сервер
+PORT=3000
+
+# Лимиты
+DEFAULT_LIMIT=15
+
+# Режим разработки (true = без Keycloak, читать X-Dev-User из заголовка)
+DEV_MODE=true
@@ -0,0 +1,16 @@
+{
+  "name": "ipwhitelist",
+  "version": "0.1.0",
+  "description": "IP WhiteList microservice for cloud provider",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "dev": "node --watch server.js"
+  },
+  "dependencies": {
+    "dotenv": "^16.4.7",
+    "ejs": "^3.1.10",
+    "express": "^4.21.1",
+    "pg": "^8.13.1"
+  }
+}
@@ -0,0 +1,45 @@
+const express = require('express');
+const path = require('path');
+require('dotenv').config();
+const { checkConnection } = require('./src/db');
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+
+// Шаблоны
+app.set('view engine', 'ejs');
+app.set('views', path.join(__dirname, 'views'));
+
+// Статика
+app.use(express.static(path.join(__dirname, 'public')));
+
+// Парсинг форм
+app.use(express.urlencoded({ extended: true }));
+
+// Health check (для nubes_nodejs)
+app.get('/healthz', async (req, res) => {
+  try {
+    await checkConnection();
+    res.status(200).send('OK');
+  } catch (e) {
+    res.status(500).send('DB error');
+  }
+});
+
+// Главная страница
+app.get('/', (req, res) => {
+  res.render('index', { title: 'IP WhiteList' });
+});
+
+async function start() {
+  try {
+    const ok = await checkConnection();
+    console.log('DB connected:', ok);
+    app.listen(PORT, () => console.log(`Server on port ${PORT}`));
+  } catch (e) {
+    console.error('DB connection failed:', e.message);
+    process.exit(1);
+  }
+}
+
+start();
@@ -0,0 +1,24 @@
+const { Pool } = require('pg');
+require('dotenv').config();
+
+const pool = new Pool({
+  host: process.env.DB_HOST,
+  port: process.env.DB_PORT || 5432,
+  database: process.env.DB_NAME || 'postgres',
+  user: process.env.DB_USER,
+  password: process.env.DB_PASS,
+  ssl: process.env.DB_SSLMODE === 'require' ? { rejectUnauthorized: false } : false,
+  max: 10,
+  idleTimeoutMillis: 30000,
+});
+
+pool.on('error', (err) => {
+  console.error('DB pool error:', err.message);
+});
+
+async function checkConnection() {
+  const { rows } = await pool.query('SELECT 1 AS ok');
+  return rows[0].ok === 1;
+}
+
+module.exports = { pool, checkConnection };
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title><%= title %></title>
+  <link rel="stylesheet" href="/style.css">
+</head>
+<body>
+  <h1><%= title %></h1>
+  <p>Сервис работает. БД подключена.</p>
+</body>
+</html>