docker部署flask项目

一、环境准备
docker中安装uwsgi报错：ERROR: Command errored out with exit status 1，需要安装以下组件
ubuntu： apt install build-essential   #安装gcc
ubuntu： apt install python3-dev
ubuntu：apt install libssl-dev
centos： yum install python3-devel
centos： yum install gcc
centos8：dnf install python38-devel.x86_64  #centos8安装python3.8
centos8：dnf install openssl-devel

二、安装uwsgi
pip3 install uwsgi
使用uwsgi运行flask websocket如报you need to build uWSGI with SSL support to use the websocket handshake api function !!!错误，需要使用以下命令安装uwsgi

CFLAGS="-I/usr/local/opt/openssl/include" LDFLAGS="-L/usr/local/opt/openssl/lib" UWSGI_PROFILE_OVERRIDE=ssl=true pip3 install uwsgi -Iv

三、flask.ini文件内容
root@Ubuntu:~/southpark# cat flask.ini

[uwsgi]
master = true
processes = 1
workers = 2
#threads = 2
pidfile = /run/uwsgi.pid
#http = 172.17.0.2:5000
socket = 172.17.0.2:5000
wsgi-file = southrun.py
callable = app
chmod-socket = 666
touch-reload = /run/uwreload   #在/run目录下touch一个名为uwreload文件或在uwreload文件中添加内容来重启uwsgi
vacuum = true
http-websockets = 1
gevent = 1000
async = 30
buffer-size = 32768
daemonize = /var/log/uwsgi.log   #指定日志文件路径
log-maxsize = 10485760   #指定日志文件大小
reload-mercy = 1
worker-reload-mercy = 1
py-autoreload = 1   #修改py文件后uwsgi自动重启

四、启动flask项目
root@Ubuntu:~/southpark# uwsgi --ini flask.ini     #配置文件中如果指定了日志文件路径，则日志不在终端显示
root@Ubuntu:~/southpark# uwsgi --ini flask.ini --daemonize /var/log/uwsgi.log      #指定日志信息输出到uwsgi.log文件中

五、nginx配置
root@nginx:/etc/nginx/sites-enabled# cat uwsgi

server {
    listen 80;
    listen [::]:80;
    server_name test.com www.test.com;
    rewrite ^(.*)$ https://$http_host$1 permanent;
}

server {
    listen 443 ssl;
    ssl_certificate /etc/nginx/crt/server.crt;
    ssl_certificate_key /etc/nginx/crt/server.key;
    ssl_session_timeout 5m;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_prefer_server_ciphers on;
    client_max_body_size 500m;

    server_name test.com www.test.com;
    
    location / {
        #使用uwsgi socket连接
        #include uwsgi_params;;
        #uwsgi的ip与端口
        #uwsgi_pass 172.17.0.3:5000;
        #作为反向代理服务器时不要关闭代理重定向
#        proxy_redirect off;    
        proxy_connect_timeout 600s;
        proxy_send_timeout   600;
        proxy_read_timeout   600;
        proxy_buffer_size    64k;
        proxy_buffers     16 32k;
        proxy_busy_buffers_size 64k;
        proxy_temp_file_write_size 64k;
        proxy_pass http://172.17.0.3:5000;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
    }
 
    #配置nginx支持websocket
    location /websocket {
        proxy_connect_timeout 600s;
        proxy_send_timeout   600;
        proxy_buffer_size    64k;
        proxy_buffers     16 32k;
        proxy_busy_buffers_size 64k;
        proxy_temp_file_write_size 64k;
        proxy_pass http://172.17.0.3:5000;
#        proxy_redirect off;
        proxy_http_version 1.1;
        proxy_read_timeout 3600s;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
    }
}

# nginx配置wss代理
server {
    listen 443 ssl;
    server_name test.example.com;

    ssl_certificate /certs/cert.pem;
    ssl_certificate_key /certs/cert.key;

    location /api {
        proxy_pass http://127.0.0.1:8082;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }

    location /ws { 
        # 升级协议头websocket
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;   
        proxy_set_header Connection upgrade;
        # 转发到ws服务器
        proxy_pass http://127.0.0.1:8082; 
        # ------对请求头等的一些设置，可根据情况进行配置------
        proxy_set_header Host $host;
        proxy_set_header X-Real_IP $remote_addr;
        proxy_set_header X-Forwarded-For $remote_addr:$remote_port;
        #关闭重定向
        proxy_redirect off;
        client_max_body_size 50m;
        proxy_connect_timeout 600;
        proxy_read_timeout 600;
        proxy_send_timeout 600;
    }
}

六、uwsgi重启方式
#使用简单选项 --reload
uwsgi --reload /run/uwsgi.pid
#使用选项touch-reload = /run/uwreload重启，在/run目录下touch一个名为uwreload的文件或修改uwreload文件来重启uwsgi（只要uwreload文件大小有变化都会重新reload uwsgi）
touch /run/uwreload

参考链接：
     https://www.cnblogs.com/lph-shares/p/8708786.html
     https://uwsgi-docs-zh.readthedocs.io/zh_CN/latest/WSGIquickstart.html
     https://zhuanlan.zhihu.com/p/88422780          # 使用gunicorn部署flask项目
     https://www.cnblogs.com/leiziv5/p/16630520.html           # FastAPI项目部署--nginx+gunicorn部署
     https://www.cnblogs.com/kadycui/p/16598342.html         # FastAPI+Gunicorn+Nginx部署(超详细)
     https://fastapi.tiangolo.com/zh/      # FastAPI框架
     https://www.runoob.com/flask/flask-tutorial.html      # flask教程