chore:

doc/server/free.md

@@ -0,0 +1,8 @@
+
+# 免费服务器部署
+
+## 1. 注册koyeb账号
+
+https://app.koyeb.com/
+
+## 2. 创建应用

packages/ui/certd-server/src/config/keys.ts

@@ -2,6 +2,7 @@ import fs from 'fs';
 import yaml from 'js-yaml';
 import * as _ from 'lodash-es';
 import { nanoid } from 'nanoid';
+import path from 'path';
 const KEYS_FILE = './data/keys.yaml';
 export class Keys {
   jwtKey: string = nanoid();
@@ -19,6 +20,12 @@ export class Keys {
   }
 
   save() {
+    const parent = path.dirname(KEYS_FILE);
+    if (!fs.existsSync(parent)) {
+      fs.mkdirSync(parent, {
+        recursive: true,
+      });
+    }
     fs.writeFileSync(KEYS_FILE, yaml.dump(this));
   }
 }