腾讯云-初始化轻量服务器python web环境

需求内容：

初始话环境用于运行python Django框架网站，数据库为mysql（docker），反向代理Nginx，版本控制git

系统选择

centos7.6

删除旧版python

默认自带python3.6，安装最新python3.9.7版本
先不安装python，等更新好sqlite3版本之后再安装，这样可以省去很多麻烦。
默认的sqlite3版本较低，不支持django2.0+

删除命令：

rpm -qa | grep python3 | xargs rpm -e --allmatches --nodeps

whereis python3.6

python3: /usr/lib/python3.6

find / -name python3

查看当前系统sqlite3版本（python3、python2均可）：
```
[root@localhost test_project]# python3
>>>import sqlite3
>>>sqlite3.sqlite_version
'3.7.15'
>>>
```
如果是3.7.x则无法在django中运行

安装sqlite3、nginx、python3.9.7、docker

创建文件夹存放安装包

> pwd
/root/
> mkdir download
> cd download
> pwd
/root/download/

提前准备安装包，稍后使用bash脚本自动执行

sqlite:
	wget https://www.sqlite.org/2021/sqlite-autoconf-3350100.tar.gz
python3.9.7：
	wget https://www.python.org/ftp/python/3.9.7/Python-3.9.7.tar.xz
nginx：
	wget https://nginx.org/download/nginx-1.16.1.tar.gz
git：
	wget wget https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.33.0.tar.gz

vi init_app.sh。复制好之后删除注释内容，否则可能导致无法正常执行

#!/bin/bash
local_dir=$(pwd)   #此处所在位置/root/download
#升级sqlite
cd ${local_dir}
tar -zxvf sqlite-autoconf-*
yum groupinstall -y "Development Tools"
yum install -y tcl
cd ${local_dir}
cd sqlite-autoconf-*
./configure
make
cp -v .libs/libsqlite3.so.0.8.6 /usr/local/lib64/
echo "/usr/local/lib64" > /etc/ld.so.conf.d/sqlite-x68_64.conf
ldconfig

#安装python 3.9.7
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 libffi-devel mysql-devel
mkdir /usr/local/python3
cd ${local_dir}
tar -xvJf Python-*
cd Python-*
./configure --prefix=/usr/local/python3
make && make install
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
pip3 install --upgrade pip
pip3 install virtualenv
echo PATH=$PATH:/usr/local/python3/bin >> /etc/profile  #>>追加写入 >覆盖写入
source /etc/profile
python3 -m pip install --upgrade setuptools

#安装nginx
yum install -y gcc-c++ pcre pcre-devel zlib zlib-devel
cd ${local_dir}
tar -zxvf nginx-*
cd nginx-*
./configure
make && make install
ln -s /usr/local/nginx/sbin/nginx /usr/bin/

#安装docker
yum install -y yum-utils
yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
yum install -y docker-ce docker-ce-cli containerd.io
systemctl start docker

#安装git
yum install -y gcc gcc-c++ zlib-devel perl-ExtUtils-MakeMaker package curl-devel libcurl-devel
tar -zxvf git-*
cd git-*
./configure --prefix=/usr/local/git
make
make install
echo "export PATH=$PATH:/usr/local/git/bin">>/etc/bashrc
source /etc/bashrc

初始化mysql就手动操作吧

运行docker mysql

docker pull mysql
docker run --name mysql -p 8806:3306 -e MYSQL_ROOT_PASSWORD=xxxx  -e MYSQL_USER=xxxxx -e MYSQL_PASSWORD=xxx -d mysql:latest

创建数据库，并更新user用户权限,否则该用户无法登录(navicat)；需要修改认证方式使web访问(django。mysql8.0的认证方式与django不一致)