Ubuntu16.04下搭建mysql + uwsgi + nginx环境启动flask 项目

1.安装mysql

Sudo apt-get install mysql

配置mysql的数据存储路径,默认在 /var/lib/mysql

sudo cp -R /var/lib/mysql/* /home/applex/mysqldb

sudo chown -R  mysql:mysql home/applex/mysqldb

sudo gedit /etc/mysql/mysql.conf.d/mysqld.cnf

将 [mysqld] 组下的 datadir改为：

datadir = /home/applex/mysqldb

sudo vim /etc/apparmor.d/usr.sbin.mysqld

把  

/var/lib/mysql r  

/var/lib/mysql/** rwk  

修改成  

/home/applex/mysqldb r  

/home/applex/mysqldb/** rwk

重启mysql

sudo service apparmor restart

sudo service mysql restart

或

sudo  /etc/init.d/apparmor restart

sudo  /etc/init.d/mysql restart   

配置msyql编码为utf8

sudo gedit /etc/mysql/mysql.conf.d/mysqld.cnf

在[mysqld]下面添加：

character-set-server=utf8

sudo gedit /etc/mysql/conf.d/mysql.cnf

添加
default-character-set=utf8

sudo gedit /etc/mysql/debian.cnf

添加
default-character-set=utf8

2.配置anaconda3

 

从官网下载当前最新sh安装脚本,执行

bash Anaconda3-2018.12-Linux-x86_64.sh

按照提示安装

conda的安装路径中不要包含中文, 根据项目创建虚拟环境并选择python3.6,其他具体操作方法见conda教程

conda create -n myenv python=3.6

3.conda环境中部署项目

若源码部署方式,conda虚拟环境切换到源码目录,执行

pip install -e .

注意源码目录必须包含setup.py 和  MANIFEST.ini

若以模块文件部署方式, conda虚拟环境切换到wheel文件目录,执行

pip install xxx.whl

模块安装后需要指定一个项目启动目录并编写入口文件,如下例:

# [main.py]

form myproject import app

if ‘__main__’ == __name__:

app.run()

可以执行python main.py 启动flask内置服务器来测试打包的项目模块是否可以正常运行

4.安装uwsgi

切换到conda虚拟环境下,用pip安装uwsgi:

conda activate myenv

pip install uwsgi

安装uwsgi报UnicodeEncoding错误,请确认conda路径是否包含unicode字符(例如中文)

 

安装uwsgi报如下错,安装配置gcc4.7

/home/applex/conda/envs/myproject/compiler_compat/ld: error: lto-wrapper failed:

sudo apt-get install gcc-4.7

sudo rm /usr/bin/gcc

sudo ln -s /usr/bin/gcc-4.7 /usr/bin/gcc

执行uwsgi –help确认uwsgi是否正确安装

uwsgi –help 查看帮助信息,若报如下错,安装配置libpcre3-dev

uwsgi: error while loading shared libraries: libpcre.so.1: cannot open shared object file: No such file or directory

sudo apt-get install libpcre3 libpcre3-dev

find / -name libpcre.so.3

找到 /lib/x86_64-linux-gnu/libpcre.so.3

sudo ln -s /lib/x86_64-linux-gnu/libpcre.so.3 /usr/lib/libpcre.so.1

编写uwsgi配置脚本

# [my_uwsgi.ini]

# 指定python环境

pythonpath = /home/applex/conda/envs/myproject/bin

# 启动http地址还是socket地址(用于与代理通信)

http = 127.0.0.1:7878

# socket = 127.0.0.1:7878

# 指定进程数(同process项)

workers = 4

# 指定线程数

threads = 2

# 设置日志路径

daemonize = /home/applex/myproject/server.log

# 设置app启动目录

chdir = /home/applex/myproject

# 设置app启动文件(也可直接指定文件全路径,无依赖时省略chdir)

# 注意引用的py文件不能在调用时启动app实例

wsgi-file = ./main.py

# 指定application对象实例

callable= app

　　

启动uwsgi服务器

uwsgi mypath/ my_uwsgi.ini

查看uwsgi是否运行

ps -aux | grep uwsgi

查看端口号占用

netstat -anp | grep 7878

结束uwsgi进程

pgrep uwsgi | xargs kill -s 9

在配置的daemonize参数指定的文件中查看错误日志

5. 安装redis

sudo apt-get install redis-server

6.安装nginx

sudo apt-get install nginx

 

删除/etc/nginx/sites-enabled目录下的default链接,复制/etc/nginx/sites-available/default到/etc/nginx/sites-enabled,并按需求命名为myproject.conf,拷贝uwsgi_params到项目路径以便后期客制

cp /etc/nginx/uwsgi_params /home/applex/myproject/

修改myproject.conf,增加:

server {

listen 80;

listen [::]:80;

server_name 127.0.0.1;

charset utf-8;

        # 转发url请求到uwsgi

        location / {

            include /home/applex/myproject/uwsgi_params;

            uwsgi_pass 127.0.0.1:8000;

            uwsgi_param UWSGI_CHDIR /home/applex/myproject;

            uwsgi_param UWSGI_SCRIPT main:app;

        }

        # 配置nginx处理静态文件

        location /static {

            alias /home/applex/conda/envs/myproject/lib/python3.6/site-packages/myproject/static;

        }

}

　　

操作nginx服务

sudo service nginx start/stop/reload