build: setup docker containers for development

app/server/db/index.js

@@ -0,0 +1,15 @@
+import { Pool } from 'pg';
+
+const db = new Pool({
+  host: process.env.DB_HOST,
+  user: process.env.DB_USER,
+  password: process.env.DB_PASSWORD,
+  port: process.env.DB_PORT,
+  database: process.env.DB_DATABASE,
+  max: 20,
+  idleTimeoutMillis: 30_000,
+  connectionTimeoutMillis: 2_000,
+  maxLifetimeSeconds: 60
+});
+
+export default db;