uwsgi+flask

（基础环境：centos7+python3.8）

[root@localhost untitled2]# pip3 list
Package      Version
------------ -------
appdirs      1.4.3  
click        7.1.1  
distlib      0.3.0  
filelock     3.0.12 
Flask        1.1.1  
itsdangerous 1.1.0  
Jinja2       2.11.1 
MarkupSafe   1.1.1  
pip          20.0.2 
setuptools   41.2.0 
six          1.14.0 
uWSGI        2.0.18 
Werkzeug     1.0.0  

学习uwsgi+flask启动方式

1 flask创建最简单的框架

2 编写uwsgi.ini

[uwsgi]
http=:5001
wsgi-file=/root/PycharmProjects/untitled2/app.py
callable=app

3 启动uwsgi

[root@localhost untitled2]# uwsgi uwsgi.ini 
[uWSGI] getting INI configuration from uwsgi.ini
*** Starting uWSGI 2.0.18 (64bit) on [Thu Mar 26 19:14:48 2020] ***
compiled with version: 4.8.5 20150623 (Red Hat 4.8.5-39) on 26 March 2020 10:57:26
os: Linux-3.10.0-1062.el7.x86_64 #1 SMP Wed Aug 7 18:08:02 UTC 2019
nodename: localhost.localdomain
machine: x86_64
clock source: unix
pcre jit disabled
detected number of CPU cores: 1
current working directory: /root/PycharmProjects/untitled2
detected binary path: /opt/app/python/bin/uwsgi
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** 
*** WARNING: you are running uWSGI without its master process manager ***
your processes number limit is 7144
your memory page size is 4096 bytes
detected max file descriptor number: 4096
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uWSGI http bound on 0.0.0.0:5001 fd 4
spawned uWSGI http 1 (pid: 26723)
uwsgi socket 0 bound to TCP address 127.0.0.1:37301 (port auto-assigned) fd 3
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** 
Python version: 3.8.2 (default, Mar 25 2020, 19:39:49)  [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]
*** Python threads support is disabled. You can enable it with --enable-threads ***
Python main interpreter initialized at 0x11432e0
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** 
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 72920 bytes (71 KB) for 1 cores
*** Operational MODE: single process ***
WSGI app 0 (mountpoint='') ready in 1 seconds on interpreter 0x11432e0 pid: 26722 (default app)
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** 
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI worker 1 (and the only) (pid: 26722, cores: 1)

 4 浏览器访问：检查是否成功

后续

1 flask+uwsgi+nginx

参考：https://www.cnblogs.com/xingxia/p/python_nginx_uwsgi.html

（分清楚是socket模式，还是http模式. 第一次配置nginx,参考的是一篇nginx中socket模式连接的。我前面uwsgi中配置的是http模式。两个配置没有一致。如果第一次配置成功了，我就不会继续去看另外一种配置方式。纸上得来终觉浅，绝知此事要躬行）

nginx扩展学习：https://www.cnblogs.com/chenyanbin/p/12521296.html

2 flask+uwsgi+nginx+supervisor

pipy: https://pypi.org/project/supervisor/ 目前不支持python 3.8。 （文章当时是3月底写的，7月5日更新发现连接里面已经支持python3.8. 看来跟新速度可以）

3 docker+flask+wusgi+nginx+supervisor