167 lines
4.3 KiB
Python
167 lines
4.3 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Gunicorn 配置文件 - app_vx.py 生产环境配置
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使用方式:
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# 方式1: 使用 gevent 异步模式（推荐，支持高并发）
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gunicorn -c gunicorn_config.py -k gevent app_vx:app
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# 方式2: 使用同步多进程模式（更稳定）
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gunicorn -c gunicorn_config.py app_vx:app
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# 方式3: 使用 systemd 管理（见文件末尾 systemd 配置示例）
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"""
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import os
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import multiprocessing
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# ==================== 基础配置 ====================
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# 绑定地址和端口
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bind = '0.0.0.0:5002'
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# Worker 进程数（建议 2-4 个，不要太多以避免连接池竞争）
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workers = 4
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# Worker 类型 - 默认使用 sync 模式，更稳定
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# 如果需要 gevent，在命令行添加 -k gevent
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worker_class = 'sync'
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# 每个 worker 处理的最大请求数，超过后重启（防止内存泄漏）
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max_requests = 5000
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max_requests_jitter = 500 # 随机抖动，避免所有 worker 同时重启
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# ==================== 超时配置 ====================
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# Worker 超时时间（秒），超过后 worker 会被杀死重启
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timeout = 120
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# 优雅关闭超时时间（秒）
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graceful_timeout = 30
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# 保持连接超时时间（秒）
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keepalive = 5
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# ==================== SSL 配置 ====================
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# SSL 证书路径（生产环境需要配置）
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cert_file = '/etc/letsencrypt/live/api.valuefrontier.cn/fullchain.pem'
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key_file = '/etc/letsencrypt/live/api.valuefrontier.cn/privkey.pem'
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if os.path.exists(cert_file) and os.path.exists(key_file):
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certfile = cert_file
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keyfile = key_file
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# ==================== 日志配置 ====================
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# 访问日志文件路径（- 表示输出到 stdout）
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accesslog = '-'
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# 错误日志文件路径（- 表示输出到 stderr）
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errorlog = '-'
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# 日志级别：debug, info, warning, error, critical
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loglevel = 'info'
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# 访问日志格式
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access_log_format = '%(h)s %(l)s %(u)s %(t)s "%(r)s" %(s)s %(b)s "%(f)s" "%(a)s" %(D)s'
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# ==================== 进程管理 ====================
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# 是否在后台运行（daemon 模式）
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daemon = False
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# PID 文件路径
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pidfile = '/tmp/gunicorn_app_vx.pid'
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# 进程名称
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proc_name = 'app_vx'
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# ==================== 预加载配置 ====================
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# 是否预加载应用代码
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# 重要：设为 False 以确保每个 worker 有独立的连接池实例
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# 否则多个 worker 共享同一个连接池会导致竞争和超时
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preload_app = False
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# ==================== Hook 函数 ====================
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def on_starting(server):
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"""服务器启动时调用"""
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print(f"Gunicorn 服务器正在启动...")
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print(f" Workers: {server.app.cfg.workers}")
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print(f" Worker Class: {server.app.cfg.worker_class}")
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print(f" Bind: {server.app.cfg.bind}")
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def when_ready(server):
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"""服务准备就绪时调用"""
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print("Gunicorn 服务准备就绪!")
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print("注意: 缓存将在首次请求时懒加载初始化")
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def on_reload(server):
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"""服务器重载时调用"""
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print("Gunicorn 服务器正在重载...")
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def worker_int(worker):
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"""Worker 收到 INT 或 QUIT 信号时调用"""
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print(f"Worker {worker.pid} 收到中断信号")
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def worker_abort(worker):
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"""Worker 收到 SIGABRT 信号时调用（超时）"""
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print(f"Worker {worker.pid} 超时被终止")
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def post_fork(server, worker):
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"""Worker 进程 fork 之后调用"""
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print(f"Worker {worker.pid} 已启动")
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def worker_exit(server, worker):
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"""Worker 退出时调用"""
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print(f"Worker {worker.pid} 已退出")
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def on_exit(server):
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"""服务器退出时调用"""
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print("Gunicorn 服务器已关闭")
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# ==================== systemd 配置示例 ====================
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"""
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将以下内容保存为 /etc/systemd/system/app_vx.service:
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[Unit]
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Description=Gunicorn instance to serve app_vx
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After=network.target
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[Service]
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User=www-data
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Group=www-data
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WorkingDirectory=/path/to/vf_react
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Environment="PATH=/path/to/venv/bin"
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Environment="USE_GEVENT=true"
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ExecStart=/path/to/venv/bin/gunicorn -c gunicorn_config.py app_vx:app
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ExecReload=/bin/kill -s HUP $MAINPID
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KillMode=mixed
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TimeoutStopSec=5
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PrivateTmp=true
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Restart=always
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RestartSec=10
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[Install]
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WantedBy=multi-user.target
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启用服务:
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sudo systemctl daemon-reload
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sudo systemctl enable app_vx
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sudo systemctl start app_vx
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sudo systemctl status app_vx
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查看日志:
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sudo journalctl -u app_vx -f
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"""
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