Django Learning

Django是一个开放源代码的Web应用框架，由Python写成。

website.

• django官网
• django基础教程——自强学堂
• django-rest-framework官网
• python3基础教程——廖雪峰

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Install Environment On CentOs6.7

install python.

sudo su -
cd /root
wget http://cdn.npm.taobao.org/dist/python/3.6.5/Python-3.6.5.tgz
tar -zxvf Python-3.6.5.tgz
yum -y install zlib*
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
cd /root/Python-3.6.5/
./configure --prefix=/usr/local/python3 --with-ssl
make
make install
ln -s /usr/local/python3/bin/python3 /usr/bin/python3 

install pip.

ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
yum install mysql-devel
yum install python-devel

mkdir /root/.pip/ 
vim /root/.pip/pip.conf  
[global]
index-url = https://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host = mirrors.aliyun.com

pip3 install --upgrade pip

install virtualenv & supervisor.

pip3 install virtualenv
pip3 install supervisor
ln -s /usr/local/python3/bin/virtualenv /usr/bin/virtualenv
ln -s /usr/local/python3/bin/supervisorctl /usr/bin/supervisorctl
ln -s /usr/local/python3/bin/supervisord /usr/bin/supervisord
ln -s /usr/local/python3/bin/echo_supervisord_conf /usr/bin/echo_supervisord_conf
echo_supervisord_conf > /etc/supervisord.conf

setup web app.

useradd test-service
sudo su - test-service
mkdir /home/test-service/.pip/
vim /home/test-service/.pip/pip.conf
[global]
index-url = http://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host = mirrors.aliyun.com

# 老版本：virtualenv --no-site-packages venv
virtualenv --system-site-packages venv
source venv/bin/activate
# git获取代码：yum install git
pip3 install -r requirements.txt
pip3 install gunicorn
mkdir /data/logs/test-service

vim /etc/supervisord.conf
[program:test-service]
directory=/home/test-service/test-service
command=/home/test-service/venv/bin/gunicorn test-service.wsgi -w4 -b 0.0.0.0:9090
user=test-service
environment=INSTANCE_ENV=PRO
autostart=true
autorestart=true
redirect_stderr=true
stderr_logfile=/tmp/supervisor_stderr.log
stdout_logfile=/tmp/supervisor_stdout.log

supervisord commands.

supervisord -c /etc/supervisord.conf
supervisorctl status
supervisorctl update
supervisorctl start test-service
supervisorctl stop test-service
supervisorctl restart test-service

Install Other Utils

install git.

yum install git

install nginx.

yum install nginx

whereis nginx
nginx: /usr/sbin/nginx /etc/nginx

vim /etc/nginx/nginx.conf
server {
    listen 8080;
    server_name test.com;

    location / {
      try_files $uri $uri/ /index.html;
      root /root/frontend/dists;
      index  index.html index.htm;
    }
}

/usr/sbin/nginx -c /etc/nginx/nginx.conf
nginx -t
nginx -s reload

install redis.

yum install redis

whereis redis
redis: /etc/redis.conf

vim /etc/redis.conf
bind 0.0.0.0

service redis start
chkconfig redis on

install mysql client.

install mysql client 5.7 on centos7.

vim /etc/yum.repos.d/mysql-community.repo  # 添加mysql源
[mysql-connectors-community]
name=MySQL Connectors Community
baseurl=https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-connectors-community-el7-$basearch/
enabled=1
gpgcheck=1
gpgkey=https://repo.mysql.com/RPM-GPG-KEY-mysql

[mysql-tools-community]
name=MySQL Tools Community
baseurl=https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-tools-community-el7-$basearch/
enabled=1
gpgcheck=1
gpgkey=https://repo.mysql.com/RPM-GPG-KEY-mysql

[mysql-5.6-community]
name=MySQL 5.6 Community Server
baseurl=https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-5.6-community-el7-$basearch/
enabled=0
gpgcheck=1
gpgkey=https://repo.mysql.com/RPM-GPG-KEY-mysql

[mysql-5.7-community]
name=MySQL 5.7 Community Server
baseurl=https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-5.7-community-el7-$basearch/
enabled=1
gpgcheck=1
gpgkey=https://repo.mysql.com/RPM-GPG-KEY-mysql

yum list mysql-community-client --showduplicates | sort -r  # 查看

yum install mysql-community-client  # 根据源配置装最高版本

mysql -utest -hx.x.x.x -pxxx  -P3306  # 连接远端mysql服务

Other

upgrade pip in virtualenv.

在pycharm的virtualenv升级pip版本失败的解决方案： -- 查看当前pip、setuptools版本 -- 先升级setuptools -- 再升级pip 失败原因是因为setuptools对pip有版本要求

pip list
pip install --upgrade setuptools
python -m pip install --upgrade pip

set env.

设置环境变量，区分线上、测试数据库： export INSTANCE_ENV=PRO

# root用户
vim /etc/profile  # 在最后一行加入export INSTANCE_ENV=PRO
source /etc/profile
echo $INSTANCE_ENV

# test-service用户
vim ~/.bashrc  # 在最后一行加入export INSTANCE_ENV=PRO
source ~/.bashrc
echo $INSTANCE_ENV