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
      
View Code

  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

  

posted @ 2019-01-07 22:04  yyxxff  阅读(171)  评论(0编辑  收藏  举报