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发表于 2022-3-21 17:15:56
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Django之入门 CMDB系统 (一) 基础环境前言作者: 何全，github地址: https://github.com/××× QQ交流群: 62-01-76-50-1
通过此教程完成从零入门，能够独立编写一个简单的CMDB系统。
目前主流的方法开发方式，分为2种：mvc 和 mvvc方式。本教程为 mvc 方式，即 django负责渲染html。后面会推出 mvvc(前后端分离)的入门教程。
教程项目地址: https://github.com/×××/husky/
教程文档地址: https://github.com/×××/husky/tree/master/doc
说明框架是整个或部分系统的可重⽤设计，表现为一组抽象构件及构件实例间交互的⽅法; 另一种定
义认为，框架是可被应用开发者定制的应用骨架。
Django是Python下的一款著名的Web框架。
Django优点自带轮⼦众多，方便快速开发 如 Auth, Cache, 模板天生的MVC设计模式实用的管理后台自带ORM, Template, Form, Auth核⼼组件简洁的url设计周边插件丰富技术准备需要你有python基本代码编写能力 以及 html js 基础, 对django有一个大概了解。
环境介绍mvc 模式centos 7.6python 3.6django 2.2mysql 5.7pycharm 2019.2 (在windows 上 远程centos进行开发)vmware workstation 15.5.0项目名字: huskycbv 编程方式远端环境配置安装centos 7.6系统安装python3.6yum install epel-release -yyum -y install sqlite sqlite-develyum install python-devel mysql-devel python36-devel.x86_64 -ysudo yum -y install https://centos7.iuscommunity.org/ius-release.rpmyum install python36 python36-setuptools -yeasy_install-3.6 pippython3.6 -m pip install --upgrade pipmv /usr/bin/python /tmp/ln -s /usr/bin/python3.6 /usr/bin/pythonsed -i 's/\#\!\/usr\/bin\/python/\#\!\/usr\/bin\/python2/' /usr/bin/yumsed -i 's/\#\! \/usr\/bin\/python/\#\! \/usr\/bin\/python2/' /usr/libexec/urlgrabber-ext-downmkdir -p /root/.pip/cat > /root/.pip/pip.conf <<EOF[global]trusted-host=mirrors.aliyun.comindex-url=http://mirrors.aliyun.com/pypi/simple/EOFpython -V安装django pip3 install django==2.2.6
本地开发配置配置pycharmfile-->settings-->project interpreter--> add --> ssh interpreter 设置远端 python环境
设置/usr/bin/python3.6 目录选择 <Project root>→/opt
file--> new project --> django
部署数据库为了快速，采用docker方式部署。mkdir -p /data/dockermkdir -p /data/mysql5722sudo yum install -y yum-utils device-mapper-persistent-data lvm2sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.reposudo yum makecache fastsudo yum -y install docker-cedocker versionsystemctl enable docker.service systemctl start docker.servicesudo mkdir -p /etc/dockersudo tee /etc/docker/daemon.json <<-'EOF'{"registry-mirrors": ["https://890km4uy.mirror.aliyuncs.com"],"graph": "/data/docker"}EOFsudo systemctl daemon-reloadsudo systemctl restart dockermkdir -p /data/mysql5722mkdir -p /data/mysql5722-cnfdocker run -itd \--name mysql \-p 3306:3306 \--mount type=bind,src=/data/mysql5722,dst=/var/lib/mysql \--mount type=bind,src=/data/mysql5722-cnf,dst=/etc/mysql \-e MYSQL_ROOT_PASSWORD=123456 \mysql:5.7.22 --character-set-server=utf8yum remove mariadb -y yum install mariadb -ymysql -uroot -p123456 -h 192.168.100.99create database husky;配置django 数据库husky --> settings
ALLOWED_HOSTS = ['*'] ##允许所有地址访问DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'HOST': '192.168.100.99', 'PORT': '3306', 'NAME': 'husky', 'USER': 'root', 'PASSWORD': '123456', }}# DATABASES = {# 'default': {# 'ENGINE': 'django.db.backends.sqlite3',# 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),# }# }修改python文件vim /usr/local/lib64/python3.6/site-packages/django/db/backends/mysql/base.py35 #if version < (1, 3, 13): 注释掉 这两行36 # raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__) vim /usr/local/lib64/python3.6/site-packages/django/db/backends/mysql/operations.py145 if query is not None:146 query = query.encode(errors='replace') ##修改此行执行数据库初始化pycharm : 菜单栏 tools --> 选择 run manage.py task
makemigrations 生成数据文件
migrate 根据文件，执行生成表结构
createsuperuser
设置pycharm 项目启动 地址 为 192.168.100.99
pycharm 启动django项目 (非命令行启动)
ssh://root@192.168.100.99:22/usr/bin/python3.6 -u /opt/manage.py runserver 192.168.100.99:8000Watching for file changes with StatReloaderPerforming system checks...System check identified no issues (0 silenced).October 31, 2019 - 09:33:33Django version 2.2.6, using settings 'husky.settings'Starting development server at http://192.168.100.99:8000/Quit the server with CONTROL-C.其他测试登录 http://192.168.100.99:8000/admin 输入账号密码
创建requirements.txt 文件
pip3 freeze > requirements.txtpip3 install -r requirements.txt ## 安装所有模块，如有增加模块，需要加到这里面 |
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