flask框架使用uWSGI部署服务

2.在启动类里引入模块

from gevent import pywsgi

3.main方法里将app.run替换

server = pywsgi.WSGIServer((‘0.0.0.0’, 80), app)

server.serve_forever()

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二、uWSGI实现方式以前需要引入nginx，现在也不需要了，很简单的实现，如下

1.安装uWSGI模块

pip install uwsgi

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2.在根目录下创建uWSGI配置文件 【uwsgi.ini】

[uwsgi]

地址端口

http = 0.0.0.0:80

项目路径

chdir = /root/projectname

项目启动文件

wsgi-file = manage.py

项目需要调用的启动类

callable = app

进程线程设置

processes = 4

threads = 10

日志文件

daemonize = /app/logs/uwsgi.log

保存主进程pid文件

pidfile = uwsgi.pid

是否需要主进程

master = true

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3.相关指令

#启动

uwsgi --ini uwsgi.ini

#重新加载

uwsgi --reload uwsgi.pid

#停止

uwsgi --stop uwsgi.pid

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4.附代码

manage.py

coding:utf-8

from app import create_app

app = create_app()

if name == ‘main’:

app.run(host=“0.0.0.0”, port=80)

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app/__init__.py

coding:utf-8

import os

import sys

from apscheduler.schedulers.background import BackgroundScheduler

from flask import Flask as _Flask, request, jsonify

from flask_apscheduler import APScheduler

from app.extensions import *

from app import config

from app.api import api

import fcntl

import atexit

class Flask(_Flask):

def wsgi_app(self, environ, start_response):

ctx = self.request_context(environ)

ctx.push()

error = None

try:

try:

response = self.full_dispatch_request()

except Exception as e:

error = e

response = self.handle_exception(e)

except:

error = sys.exc_info()[1]

raise

return response(environ, start_response)

finally:

if self.should_ignore_error(error):

error = None

ctx.auto_pop(error)

def create_app():

app = Flask(name, static_folder=os.path.join(os.path.dirname(os.path.abspath(file)), ‘…’, ‘static’))

app.config.from_object(config)

blueprints_fabric(app)

run_task(app)

extensions_fabric(app)

process_request(app)

app.json_encoder = CustomJSONEncoder

return app

class CustomJSONEncoder(JSONEncoder):

def default(self, obj):

if isinstance(obj, bytearray):

return str(obj, encoding=‘utf-8’)

if isinstance(obj, datetime):

return obj.strftime(‘%Y-%m-%dT%H:%M:%S’)

else:

return JSONEncoder.default(self, obj)

def job1():

print(“job1”)

def run_task(app):

执行一次

“”“Configure Scheduler”“”

f = open(“scheduler.lock”, “wb”)

try:

fcntl.flock(f, fcntl.LOCK_EX | fcntl.LOCK_NB)

print(“run_task**”)

scheduler = APScheduler(scheduler=BackgroundScheduler(timezone=‘Asia/Shanghai’))

scheduler.init_app(app)

scheduler.start()

@scheduler.task(‘interval’, id=‘do_job_1’, seconds=10, misfire_grace_time=900)

def do_job_1():

job1()

except:

pass

def unlock():

fcntl.flock(f, fcntl.LOCK_UN)

f.close()

atexit.register(unlock)

def blueprints_fabric(app):

blueprints = [api]

for blueprint in blueprints:

app.register_blueprint(blueprint)