diff --git a/Dockerfile b/Dockerfile
index 35e7c2c..6d73286 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 FROM python:3.9-alpine
 
 # 设置时区为 GMT+8
-RUN apk add --no-cache tzdata
+RUN apk add --no-cache tzdata ca-certificates
 ENV TZ=Asia/Shanghai
 
 # 设置工作目录
diff --git a/docker-compose.yml b/docker-compose.yml
index e424ed7..b1665e7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,11 +1,13 @@
-version: '3.8'
 services:
   nodeseek-signin:
     build: .
+    image: nodeseek-signin:latest
+    container_name: nodeseek-signin
+    command: ["python", "scheduler.py"]
     environment:
       - IN_DOCKER=true
     env_file:
       - .env
     volumes:
       - ./cookie:/app/cookie
-    restart: always
\ No newline at end of file
+    restart: always
diff --git a/scheduler.py b/scheduler.py
index 08d4b3a..37ad80f 100644
--- a/scheduler.py
+++ b/scheduler.py
@@ -1,4 +1,5 @@
 import os
+import sys
 import time
 import datetime
 import random
@@ -6,6 +7,10 @@ import subprocess
 import re
 from datetime import timezone, timedelta
 
+# 测试程序时使用
+# from dotenv import load_dotenv
+# load_dotenv()
+
 GMT8 = timezone(timedelta(hours=8))
 
 def get_run_config():
@@ -19,17 +24,17 @@ def get_run_config():
     run_at_env = os.environ.get('RUN_AT', '08:00-10:59')
 
     if re.fullmatch(r'\d{2}:\d{2}', run_at_env):
-        print(f"检测到固定时间模式: {run_at_env}")
+        print(f"检测到固定时间模式: {run_at_env}", flush=True)
         return 'fixed', run_at_env
     
     if re.fullmatch(r'\d{2}:\d{2}-\d{2}:\d{2}', run_at_env):
-        print(f"检测到随机时间范围模式: {run_at_env}")
+        print(f"检测到随机时间范围模式: {run_at_env}", flush=True)
         return 'range', run_at_env
 
     if os.environ.get('RUN_AT'):
-        print(f"警告: 环境变量 RUN_AT 的格式 '{run_at_env}' 无效。")
+        print(f"警告: 环境变量 RUN_AT 的格式 '{run_at_env}' 无效。", flush=True)
     
-    print("将使用默认随机时间范围 '08:00-10:59'。")
+    print("将使用默认随机时间范围 '08:00-10:59'。", flush=True)
     return 'range', '08:00-10:59'
 
 def calculate_next_run_time(mode, value):
@@ -78,26 +83,26 @@ def run_checkin_task():
     """
     执行 nodeseek_sign.py 脚本。
     """
-    print(f"[{datetime.datetime.now(GMT8).strftime('%Y-%m-%d %H:%M:%S')}] 开始执行签到任务...")
+    print(f"[{datetime.datetime.now(GMT8).strftime('%Y-%m-%d %H:%M:%S')}] 开始执行签到任务...", flush=True)
     try:
-        subprocess.run(["python", "nodeseek_sign.py"], check=True)
-        print(f"[{datetime.datetime.now(GMT8).strftime('%Y-%m-%d %H:%M:%S')}] 签到任务执行完毕。")
+        subprocess.run([sys.executable, "nodeseek_sign.py"], check=True)
+        print(f"[{datetime.datetime.now(GMT8).strftime('%Y-%m-%d %H:%M:%S')}] 签到任务执行完毕。", flush=True)
     except FileNotFoundError:
-        print("错误: 'nodeseek_sign.py' 未找到。请确保它与 scheduler.py 位于同一目录。")
+        print("错误: 'nodeseek_sign.py' 未找到。请确保它与 scheduler.py 位于同一目录。", flush=True)
     except subprocess.CalledProcessError as e:
-        print(f"签到任务执行失败，返回码: {e.returncode}")
+        print(f"签到任务执行失败，返回码: {e.returncode}", flush=True)
     except Exception as e:
-        print(f"执行签到任务时发生未知错误: {e}")
+        print(f"执行签到任务时发生未知错误: {e}", flush=True)
 
 def main():
     """
     主调度循环。
     """
-    print("调度器启动...")
+    print("调度器启动...", flush=True)
     mode, value = get_run_config()
-    print(f"调度模式: '{mode}', 配置值: '{value}'")
+    print(f"调度模式: '{mode}', 配置值: '{value}'", flush=True)
     
-    run_checkin_task()
+    # run_checkin_task() # 启动时执行，用于测试程序
 
     while True:
         next_run_time = calculate_next_run_time(mode, value)
@@ -105,13 +110,13 @@ def main():
         sleep_duration = (next_run_time - now).total_seconds()
 
         if sleep_duration > 0:
-            print(f"下一次签到任务计划在: {next_run_time.strftime('%Y-%m-%d %H:%M:%S')}")
+            print(f"下一次签到任务计划在: {next_run_time.strftime('%Y-%m-%d %H:%M:%S')}", flush=True)
             hours, remainder = divmod(sleep_duration, 3600)
             minutes, _ = divmod(remainder, 60)
-            print(f"程序将休眠 {int(hours)} 小时 {int(minutes)} 分钟。")
+            print(f"程序将休眠 {int(hours)} 小时 {int(minutes)} 分钟。", flush=True)
             time.sleep(sleep_duration)
         else:
-            print("计算出的下一个运行时间已过，等待 60 秒后重试...")
+            print("计算出的下一个运行时间已过，等待 60 秒后重试...", flush=True)
             time.sleep(60)
 
         run_checkin_task()