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import paramiko
import schedule
import time
import os
import sys
from flask import Flask, jsonify, render_template_string
from threading import Thread
import logging
app = Flask(__name__)
vps_status = {}
# 设置日志
logging.basicConfig(
level=logging.INFO,
format='%(asctime)s - %(levelname)s - %(message)s',
handlers=[
logging.StreamHandler(sys.stdout),
logging.StreamHandler(sys.stderr)
]
)
logger = logging.getLogger()
def get_vps_configs():
configs = []
index = 1
while True:
hostname = os.environ.get(f'HOSTNAME_{index}')
if not hostname:
break
config = {
'index': index,
'hostname': hostname,
'username': os.environ.get(f'USERNAME_{index}'),
'password': os.environ.get(f'PASSWORD_{index}'),
'script_path': os.environ.get(f'SCRIPT_PATH_{index}')
}
configs.append(config)
logger.info(f"Config {index}: {config['hostname']}, {config['username']}, {config['script_path']}")
index += 1
return configs
def check_and_run_script(config):
logger.info(f"Checking VPS {config['index']}: {config['hostname']}")
client = None
try:
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(
hostname=config['hostname'],
username=config['username'],
password=config['password'],
port=22
)
script_path = config['script_path']
script_name = os.path.basename(script_path)
check_command = f"ps -eo args | grep {script_name} | grep -v grep"
stdin, stdout, stderr = client.exec_command(check_command)
output = stdout.read().decode('utf-8').strip()
if output and script_path in output:
status = "Running"
logger.info(f"Script is running on {config['hostname']}")
else:
logger.info(f"Script not running on {config['hostname']}. Executing restart script.")
restart_command = f"nohup /bin/sh {script_path} > /dev/null 2>&1 &"
stdin, stdout, stderr = client.exec_command(restart_command)
status = "Restarted"
logger.info(f"Script restarted on {config['hostname']}")
vps_status[config['index']] = {
'index': config['index'],
'hostname': config['hostname'],
'status': status,
'last_check': time.strftime('%Y-%m-%d %H:%M:%S'),
'username': config['username']
}
except Exception as e:
logger.error(f"Error occurred while checking VPS {config['index']} - {config['hostname']}: {str(e)}")
vps_status[config['index']] = {
'index': config['index'],
'hostname': config['hostname'],
'status': f"Error: {str(e)}",
'last_check': time.strftime('%Y-%m-%d %H:%M:%S'),
'username': config['username']
}
finally:
if client:
client.close()
def check_all_vps():
logger.info("Starting VPS check")
vps_configs = get_vps_configs()
for config in vps_configs:
check_and_run_script(config)
# 创建表格头
table = "+---------+-----------------------+----------+-------------------------+----------+\n"
table += "| Index | Hostname | Status | Last Check | 用户名 |\n"
table += "+---------+-----------------------+----------+-------------------------+----------+\n"
# 添加每个VPS的状态
for index in sorted(vps_status.keys()):
status = vps_status[index]
table += "| {:<7} | {:<21} | {:<8} | {:<23} | {:<8} |\n".format(
status['index'],
status['hostname'][:21],
status['status'][:8],
status['last_check'],
status['username'][:8]
)
table += "+---------+-----------------------+----------+-------------------------+----------+\n"
logger.info("\n" + table)
@app.route('/')
def index():
html = '''
<h1>VPS Status 概述</h1>
<table border="1">
<tr>
<th>Index</th>
<th>Hostname</th>
<th>Status</th>
<th>Last Check</th>
<th>用户名</th>
</tr>
{% for index in vps_status.keys()|sort %}
{% set data = vps_status[index] %}
<tr>
<td>{{ data['index'] }}</td>
<td><a href="/status/{{ data['index'] }}">{{ data['hostname'] }}</a></td>
<td>{{ data['status'] }}</td>
<td>{{ data['last_check'] }}</td>
<td>{{ data['username'] }}</td>
</tr>
{% endfor %}
</table>
'''
return render_template_string(html, vps_status=vps_status)
@app.route('/status/<int:index>')
def vps_status_detail(index):
if index in vps_status:
return jsonify(vps_status[index])
else:
return jsonify({"error": "VPS not found"}), 404
@app.route('/health')
def health_check():
return jsonify({"status": "healthy", "uptime": time.time() - start_time}), 200
def run_flask():
app.run(host='0.0.0.0', port=8080)
def main():
global start_time
start_time = time.time()
logger.info("===== VPS monitoring script is starting =====")
flask_thread = Thread(target=run_flask)
flask_thread.start()
logger.info("Flask server started in background")
vps_configs = get_vps_configs()
logger.info(f"Found {len(vps_configs)} VPS configurations")
logger.info("Running initial VPS check")
check_all_vps()
schedule.every(15).minutes.do(check_all_vps)
logger.info("Scheduled VPS check every 15 minutes")
logger.info("===== VPS monitoring script is running =====")
heartbeat_count = 0
while True:
schedule.run_pending()
time.sleep(60)
heartbeat_count += 1
if heartbeat_count % 5 == 0: # 每5分钟输出一次心跳信息
logger.info(f"Heartbeat: Script is still running. Uptime: {heartbeat_count} minutes")
if __name__ == "__main__":
main() |