阿里云CentOS 7.4 使用Flask建站的方法

mkdir myflask
cd myflask
virtualenv venv

source venv/bin/activate

pip install flask

from flask import Flask

app = Flask(__name__)

@app.route('/')
def index():
  return 'hello world!'

if __name__ == '__main__':
  app.run()

python run.py

pip install gunicorn

pip freeze > requirements.txt

pip install -r requirements.txt

gunicorn -w4 -b0.0.0.0:5000 run:app #-w worker数量 -b 访问地址

yum install gcc-c++

yum install -y pcre pcre-devel

yum install -y zlib zlib-devel

yum install -y openssl openssl-devel

wget https://nginx.org/download/nginx-1.13.12.tar.gz
tar -zxvf nginx-1.13.12.tar.gz
cd nginx-1.13.12
make 
make install #编译安装

server {
  listen    80;
  server_name localhost;
  location / {
    proxy_pass http://127.0.0.1:5000;
    proxy_redirect off;
    proxy_set_header Host $host:80;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }

}

[root@server ~]# service nginx start
Starting nginx:                      [ OK ]
[root@server ~]# nginx -s reload

pip install supervisor
echo_supervisord_conf > supervisor.conf  # 生成 supervisor 默认配置文件
vim supervisor.conf            # 修改 supervisor 配置文件，添加 gunicorn和nginx

【program:myflask】
command = /usr/local/bin/gunicorn -w4 -b0.0.0.0:5000 run:app
directory = /home/myflask #位置
autostart = true #自动启动
startsecs = 5
autorestart = true #自动重启
startretries = 3 #启动失败时的最多重试次数
redirect_stderr = true #重定向stderr到stdout
stdout_logfile = /var/log/flask_supervisor.log

mkdir /home/myflask/log

[program:up_nginx]
command = /usr/sbin/nginx
autostart = true       #随着supervisord的启动而启动
autorestart = true     #自动重启
startretries = 10       #启动失败时的最多重试次数
exitcodes = 0         #正常退出代码
stopsignal = KILL      #用来杀死进程的信号
stopwaitsecs = 10      #发送SIGKILL前的等待时间
redirect_stderr = true    #重定向stderr到stdout
stdout_logfile = /home/myflask/log/nginx.log
stdout_logfile = /home/myflask/log/nginx.err

supervisord -c supervisord.conf
#sudo unlink /tmp/supervisor.sock #如上面启动失败先使用此命令之后在使用上面命令
supervisorctl start all

#开机任务自动启动
vi /etc/rc.d/rc.local  #并在最后添加
supervisord -c /home/myflask/supervisord.conf

#尾声：通过以上步骤，那么基本上就可以开启启动网站了！reboot试一试~~

supervisord -c supervisor.conf     #通过配置文件启动supervisor
supervisorctl status          #察看supervisor的状态
supervisorctl reload          #重新载入 配置文件
supervisorctl start [all]|[appname]   #启动指定/所有 supervisor管理的程序进程
supervisorctl stop [all]|[appname]   #关闭指定/所有 supervisor管理的程序进程