Adding Persistent Keepalive

src/lib/WireGuard.js

@@ -16,6 +16,7 @@ const {
   WG_PORT,
   WG_DEFAULT_DNS,
   WG_DEFAULT_ADDRESS,
+  WG_PERSISTENTKEEPALIVE;
   WG_ALLOWED_IPS,
 } = require('../config');
 
@@ -181,6 +182,7 @@ ${WG_DEFAULT_DNS ? `DNS = ${WG_DEFAULT_DNS}` : ''}
 PublicKey = ${config.server.publicKey}
 PresharedKey = ${client.preSharedKey}
 AllowedIPs = ${WG_ALLOWED_IPS}
+PersistentKeepalive = ${WG_PERSISTENTKEEPALIVE}
 Endpoint = ${WG_HOST}:${WG_PORT}`;
   }