Fix

db/knex_migrations/2026-05-28-0010-better-auth-foreign-key.js

@@ -31,9 +31,20 @@ const tables = [
 
 exports.up = async function (knex) {
     for (const table of tables) {
-        await knex.schema.alterTable(table.name, (t) => {
-            t.dropForeign("user_id");
-        });
+        try {
+            await knex.schema.alterTable(table.name, (t) => {
+                t.dropForeign("user_id");
+            });
+        } catch (error) {
+            // Not sure why it only happens on Ubuntu 22.04 + Node.js 26
+            // Can't DROP 'docker_host_user_id_foreign'; check that column/key exists
+            console.error(`Error dropping foreign key for table ${table.name}:`, error);
+
+            const columns = await knex(table.name).columnInfo();
+            console.error(`Schema for ${table.name}:`, JSON.stringify(columns, null, 2));
+
+            throw error;
+        }
 
         await knex.schema.alterTable(table.name, (t) => {
             t.dropColumn("user_id");

server/better-auth.ts

@@ -3,7 +3,7 @@ import { betterAuth, Session } from "better-auth";
 import * as Database from "./database.js";
 import { genSecret, log } from "../src/util";
 import { R } from "redbean-node";
-import { createPool } from "mysql2/promise";
+import { createPool, Pool } from "mysql2/promise";
 import BetterSqlite3Database from "better-sqlite3";
 import { username } from "better-auth/plugins";
 import { admin } from "better-auth/plugins";
@@ -43,6 +43,21 @@ export async function authInternal() {
     return (await auth().$context).internalAdapter;
 }
 
+let mariaDB: Pool;
+let sqlite: BetterSqlite3Database.Database;
+
+/**
+ *
+ */
+export async function closeAuthDatabase() {
+    if (mariaDB) {
+        await mariaDB.end();
+    }
+    if (sqlite) {
+        sqlite.close();
+    }
+}
+
 /**
  * Create a new instance of better-auth
  * @throws Error if Database.initDataDir() has not been called
@@ -57,7 +72,7 @@ function createAuthInstance() {
     }
     let database;
     if (Database.dbConfig.type.includes("mariadb")) {
-        database = createPool({
+        mariaDB = createPool({
             host: Database.dbConfig.host,
             port: Number(Database.dbConfig.port),
             database: Database.dbConfig.database,
@@ -66,8 +81,10 @@ function createAuthInstance() {
             timezone: "Z",
             ...(Database.dbConfig.socketPath ? { socketPath: Database.dbConfig.socketPath } : {}),
         });
+        database = mariaDB;
     } else {
-        database = new BetterSqlite3Database(Database.sqlitePath);
+        sqlite = new BetterSqlite3Database(Database.sqlitePath);
+        database = sqlite;
     }
 
     return betterAuth({

server/server.js

@@ -4,11 +4,10 @@
  * DO NOT require("./server") in other modules, it likely creates circular dependency!
  */
 import { getRandomInt, isDev, log, sleep } from "../src/util";
-import { auth, doubleCheckPassword, getDisableAuthSession, getSession } from "./better-auth";
+import { auth, closeAuthDatabase, doubleCheckPassword, getDisableAuthSession, getSession } from "./better-auth";
 import { createBetterAuthRouter, needSetup } from "./routers/better-auth-router";
 import { betterAuthSocketHandler } from "./socket-handlers/better-auth-socket-handler";
 import { loadEnvFile } from "node:process";
-import * as fs from "fs";
 
 console.log("Welcome to Uptime Kuma");
 
@@ -91,7 +90,6 @@ log.debug("server", "Importing http-graceful-shutdown");
 const gracefulShutdown = require("http-graceful-shutdown");
 log.debug("server", "Importing prometheus-api-metrics");
 const prometheusAPIMetrics = require("prometheus-api-metrics");
-const TranslatableError = require("./translatable-error");
 
 const { UptimeKumaServer } = require("./uptime-kuma-server");
 const server = UptimeKumaServer.getInstance();
@@ -100,7 +98,6 @@ const app = server.app;
 
 log.debug("server", "Importing Monitor");
 const Monitor = require("./model/monitor");
-const User = require("./model/user");
 
 log.debug("server", "Importing Settings");
 const {
@@ -1548,6 +1545,7 @@ async function shutdownFunction(signal) {
     }
     await sleep(2000);
     await Database.close();
+    await closeAuthDatabase();
 
     if (EmbeddedMariaDB.hasInstance()) {
         EmbeddedMariaDB.getInstance().stop();

test/mock-testdb.js

@@ -2,6 +2,7 @@ const { sync: rimrafSync } = require("rimraf");
 const Database = require("../server/database");
 const { Settings } = require("../server/settings");
 const { sleep } = require("../src/util");
+const { closeAuthDatabase } = require("../server/better-auth");
 
 class TestDB {
     dataDir;
@@ -22,11 +23,15 @@ class TestDB {
 
     async destroy() {
         await Database.close();
+        await closeAuthDatabase();
         Settings.stopCacheCleaner();
         if (this.dataDir) {
-            // Windows may hold file lock?
-            await sleep(3000);
-            rimrafSync(this.dataDir);
+            try {
+                rimrafSync(this.dataDir);
+            } catch (e) {
+                console.error("Windows may hold file lock?");
+                console.error(e);
+            }
         }
     }
 }