记录一次linux部署flask

项目比较赶，来了一次快速开发，

环境 nginx+gunicorn+python3.6.6+flask
开发环境nodejs+vue+flask+python3.6.6 

1.安装python3.6.6

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel gcc 
gcc-c++

下载
wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tgz
解压缩
tar -zxf Python-3.6.6.tgz
cd Python-3.6.6
配置
./configure --prefix=/usr/bin/python3.6.6
yum install -y gcc

安装
make && make install

配置软链接
ln -s /usr/bin/python3.6.6/bin/python3 /usr/bin/python3
python3 -V

配置pip
cp /usr/bin/python3.6.6/bin/pip3 /usr/bin/
cp /usr/bin/python3.6.6/bin/pip3.6 /usr/bin/

更新yum包
yum update
安装包依赖
yum install python-devel
yum install mysql-devel
pip3 install -r requirements.txt

安装mysqlclient失败

版本问题，win环境开发的用的mysql是1.4版本这里做下调整，安装1.3.1版本

pip install mysqlclient==1.3.1 

2.nginx 安装及配置

安装

常用命令

nginx 启动nginx
nginx -s stop 关闭nginx
ps aux | grep nginx
ps -autx|grep gunicorn

配置

   vi /usr/local/nginx/conf/nginx.conf
   在http节点下配置 使用了三个站点

    upstream flask {
         server 10.1.1.96:5000;
         server 10.1.1.96:5001;
         server 10.1.1.96:5002;
    }
    server {
        listen       80;
        server_name  0.0.0.0;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
         proxy_pass http://flask;

         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
        }

使用screen 保持会话

解决关闭会话无法工作
yum install screen
查看后台所有的screen进程
screen -ls
进入screen 模式
screen -S gunicorn1
恢复现有的进程
screen -r 3846.es

启动脚本命令

cd /var/wsdd
gunicorn -w 4 -b 10.1.1.96:5000 manage:app –preload
gunicorn -w 4 -b 10.1.1.96:5001 manage:app –preload
gunicorn -w 4 -b 10.1.1.96:5002 manage:app –preload