需要文件

Miniconda3-latest-Linux-x86_64.sh，下载地址

安装Nginx

执行yum install -y yum-utils

在/etc/yum.repos.d创建nginx.repo，并添加如下内容

[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true

[nginx-mainline]
name=nginx mainline repo
baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
gpgcheck=1
enabled=0
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true

执行yum install -y nginx

安装Miniconda

chmod u+x Miniconda3-latest-Linux-x86_64.sh
执行Miniconda3-latest-Linux-x86_64.sh，并根据提示完成安装
在用户home目录创建.condarc文件，也可通过conda config命令创建

在.condarc文件中添加如下内容

show_channel_urls: true
channels:
  - defaults
  - conda-forge
default_channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
custom_channels:
  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud

执行conda create -n flask python=3.7.3 pylint requests flask libiconv创建虚拟环境。若没有安装libiconv会报如下错误：
uwsgi: error while loading shared libraries: libiconv.so.2: cannot open shared object file: No such file or directory

配置uWSGI

在虚拟环境中执行conda install -y uwsgi

上传项目文件，在项目目录（本文为/home/flask/FlaskTest）中创建uwsgi.ini，并添加如下内容（删除注释）。

[uwsgi]
socket = 127.0.0.1:8001    //与nginx通信的端口
chdir = /home/flask/FlaskTest/    //你的Flask项目目录
wsgi-file = hello.py    //项目启动文件
callable = app      //hello.py文件中flask实例化的对象名
processes = 1     //处理器个数
threads = 1     //线程个数
stats = 127.0.0.1:9191   //获取uwsgi统计信息的服务地址

在.bash_profile中增加export FLASK_ENV='production'
代码DEBUG配置项改为False
在虚拟环境中执行uwsgi uwsgi.ini可在控制台上启动应用。验证uwsgi.ini配置。

配置supervisor

在虚拟环境中执行conda install -y supervisor
创建/home/flask/supervisor目录
执行echo_supervisord_conf > /home/flask/supervisor//supervisord.conf生成配置文件模板

修改配置文件如下所示

[unix_http_server]
file=/home/flask/supervisor/supervisor.sock

[supervisord]
logfile=/home/flask/supervisor/supervisord.log
logfile_maxbytes=50MB
logfile_backups=10
loglevel=info
pidfile=/home/flask/supervisor/supervisord.pid
nodaemon=false
minfds=1024
minprocs=200

[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

[supervisorctl]
serverurl=unix:///home/flask/supervisor/supervisor.sock

[program:flask]
command=/home/flask/miniconda3/envs/flask/bin/uwsgi /home/flask/FlaskTest/uwsgi.ini
directory=/home/flask/FlaskTest
autostart=true
startretries=3
user=flask

执行supervisord -c /home/flask/supervisor/supervisord.conf使用指定配置文件启动
执行supervisorctl -c /home/flask/supervisor/supervisord.conf进入控制台，可查看程序状态、更新配置文件等

配置Nginx

进入/etc/nginx/conf.d目录

创建flask.conf文件，并添加如下内容

server {
    listen 80;
    root /home/flask/FlaskTest;
    server_name localhost;
    location / {
        proxy_set_header x-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        include uwsgi_params;
        uwsgi_pass localhost:8001;
    }
}

执行nginx -s reload重载配置
Nginx常用命令
- nginx — start nginx
- nginx -s stop — fast shutdown
- nginx -s quit — graceful shutdown
- nginx -s reload — reloading the configuration file
- nginx -s reopen — reopening the log files

测试

在浏览器中输入服务器地址，结果如下

测试结果

nginx+uwsgi+supervisor快餐部署