day96
在服务器上部署上线项目
Linux数据库处理
首先我们需要在mysql中创建bbs库,并导入数据库SQL脚本(就是原本运行在我们项目中的数据库)
前提:需要进入mysql中
mysql> create database bbs charset utf8mb4; mysql> use bbs mysql> source /opt/bbs.sql mysql> drop database bbs;
同时我们需要在Django项目中的setting.py配置文件,修改一下两处
ALLOWED_HOSTS = ['*'] DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'bbs', 'HOST': "10.0.0.100", 'USER': 'root', 'PASSWORD': '123', 'PORT': 3306, }
并且我们需要在MYSQL中定义用户
白名单: 主机域IP地址 只允许本机访问mysql root@'localhost' root@'10.0.0.110' root@'10.0.0.%' root@'10.0.0.0/255.255.240.0' root@'10.0.0.5%' root@'%'
grant all grant select,update,insert
项目部署
首先需要配置Nginx
vim /etc/nginx/conf.d/py.conf 配置Nginx配置文件 server { listen 80; server_name 10.0.0.100; client_max_body_size 100M; 开设一个外网访问的接口 location /static { alias /opt/BBS/static/; } 开设一个外网访问的接口 location /media { alias /opt/BBS/media; } location / { index index.html; include uwsgi_params; uwsgi_pass 127.0.0.1:9090; uwsgi_param UWSGI_SCRIPT BBS.wsgi; uwsgi_param UWSGI_CHDIR /opt/BBS; } }
配置uwsgi
关闭所有已有的uwsgi进程 kill -9 `ps -ef |grep uwsgi|awk {'print $2'}` vim uwsgi.ini 配置uwsgi的设置 [uwsgi] socket = 127.0.0.1:9090 master = true workers = 2 reload-mercy = 10 vacuum = true max-requests = 1000 limit-as = 512 buffer-size = 30000
启动uwsgi
uwsgi --ini uwsgi.ini &
重启nginx
systemctl restart nginx
Python 在运维工作中的经典应用
1.安装ansible
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo yum install ansible -y
克隆虚拟机
hostnamectl set-hostname standby 设置其地址,并且删除UUID行 vim /etc/sysconfig/network-scripts/ifcfg-eth0 IPADDR=10.0.0.200 UUID行删掉 在host文件中增加一行 vim /etc/hosts 10.0.0.200 standby 同时重启network systemctl restart network
Linux的 SSHD(22)
验证方式:
(1)用户+密码(PAM)
(2)秘钥验证(公钥:钥匙和私钥:锁)
通过秘钥对实现,需要将公钥分发到各节点
接着我们需要管理被控端,管理机先生成秘钥,然后推送公钥(注意要对自己的机器也进行推送)
ssh-keygen ssh-copy-id -i ~/.ssh/id_rsa.pub root@10.0.0.200 for i in {1..12};do ssh-copy-id -i ~/.ssh/id_rsa.pub root@10.0.0.$i;done
配置一些被管理的主机清单
vim /etc/ansible/hosts 写入 [web] 10.0.0.100 10.0.0.200
在尝试跑剧本时,我们现需要进行测试
ansible all -m ping
ansible all -m shell -a "df -h"
然后我们再把剧本写好(关于自动化安装nginx)
vim playbook_nginx.yml 写入 - hosts: web remote_user: root vars: http_port: 80 tasks: - name: Add Nginx Yum Repository yum_repository: name: nginx description: Nginx Repository baseurl: http://nginx.org/packages/centos/7/$basearch/ gpgcheck: no - name: Install Nginx Server yum: name=nginx state=present - name: Configure Nginx Server template: src=./default.conf.template dest=/etc/nginx/conf.d/default.conf notify: Restart Nginx Server - name: Start Nginx Server service: name=nginx state=started enabled=yes handlers: - name: Restart Nginx Server service: name=nginx state=restarted
接着配置一下默认设置模板文件
vim default.conf.template 写入 server { listen {{ http_port }}; server_name localhost; location / { root /usr/share/nginx/html; index index.html index.htm; } }
最后执行即可
ansible-playbook