自动化运维(2)之一键式单实例安装MySQL

ZMySQLAutoTools文档

目标：自动化构建部署MySQL数据库，一键式单实例mysql安装，备份，监控，主从集群部署等。以及jdk，tomcat，nginx等基础中间件的自动化部署安装及运维。

此文档：完成一键式单实例mysql安装功能，可以完成批量标准化部署MySQL单实例。用于测试，开发以及生产环境。

环境准备

本实验为：4台虚拟机，操作系统为:Centos 6.8(6以上均可)

主机名	ip地址	备注
host_50	10.1.11.50	主控机
host_51	10.1.11.51	被控客户端
host_52	10.1.11.52	被控客户端
host_53	10.1.11.53	被控客户端

解压ZMySQLAutoTools

1):获得ZMySQLAutoTools安装包

cd /tmp/

wget https://github.com/zhangshengdong/ZMySQLAutoTools/archive/master.zip

2):解压ZMySQLAutoTools安装包

unzip master

mv ZMySQLAutoTools-master /usr/local/ZMySQLAutoTools

python3.x安装

在ZMySQLAutoTools/packages/python/目录下，有相关的python安装包，通过 installPython.sh 安装部署

# yum install -y libselinux-python

# cd /usr/local/ZMySQLAutoTools/packages/python/

# bash installPython.sh

输出日志为:

.....

Collecting setuptools

Collecting pip

Installing collected packages: setuptools, pip

Successfully installed pip-9.0.1 setuptools-28.8.0

......

说明安装成功

查看版本:

source /etc/profile

python3 --version

ansible安装

在ZMySQLAutoTools/packages/ansible/目录下，有相关的ansible安装包，通过 ins_ansible.sh 安装部署

# source /etc/profile

# cd /usr/local/ZMySQLAutoTools/packages/ansible

# bash ins_ansible.sh

输出日志为:

Using /usr/local/python-3.6.2/lib/python3.6/site-packages

Finished processing dependencies for ansible==2.4.0.0

说明安装成功

配置ansible

1):编辑ansible的配置文件

增加ansible的配置文件

mkdir -p /etc/ansible

touch /etc/ansible/hosts

配置/etc/ansible/hosts文件，内容如下：

host_50 ansible_user=root ansible_host=10.1.11.50

host_51 ansible_user=root ansible_host=10.1.11.51

host_52 ansible_user=root ansible_host=10.1.11.52

host_53 ansible_user=root ansible_host=10.1.11.53

2):配置主控机与被控机之间的ssh信任

ssh-keygen

ssh-copy-id root@10.1.11.50

ssh-copy-id root@10.1.11.51

ssh-copy-id root@10.1.11.52

ssh-copy-id root@10.1.11.53

3):测试ansible是否成功

举例命令:

ansible all -m ping                     //检测所有主机是否pingOK

ansible all -a "/bin/echo hello"        //对所有主机执行hello脚本

ansible all -a "df -h"                  //对所有主机检测硬盘

ansible host_53 -m command -a 'hostname'//对主机host_53,查看hostname的名字

ansible all -m shell -a 'ps -ef |grep mysql'   //对所有主机检测mysql进程

ping命令的检测效果日志日志如下:

[root@MHA-Manager ansible]# ansible all -m ping

host_50 | SUCCESS => {

    "changed": false,

    "failed": false,

    "ping": "pong"

}

host_51 | SUCCESS => {

    "changed": false,

    "failed": false,

    "ping": "pong"

}

host_53 | SUCCESS => {

    "changed": false,

    "failed": false,

    "ping": "pong"

}

host_52 | SUCCESS => {

    "changed": false,

    "failed": false,

    "ping": "pong"

}

自动化单实例MySQL部署

yaml文件配置修改

由于MySQL的tar.gz过大，所以手动get到指定目录。并且修改yaml文件，完成一键式部署mysql。

1):下载MySQL 5.7二进制部署包

cd /tmp/

wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

2): MySQL 5.7二进制部署包放置到/usr/local/ZMySQLAutoTools/packages/mysql目录下

mv /tmp/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz /usr/local/ZMySQLAutoTools/packages/mysql/

3): 修改install_single_mysql.yaml配置文件

[root@MHA-Manager mysql]# cd /usr/local/ZMySQLAutoTools/deploy/mysql

[root@MHA-Manager mysql]# vi install_single_mysql.yaml

---

 - hosts: host_51   //修改为你要远程部署的主机名称

一键单实例MySQL部署

1):部署mysql

cd /usr/local/ZMySQLAutoTools/deploy/mysql

ansible-playbook install_single_mysql.yaml

2):进入mysql

[root@MHA-Manager mysql]# mysql -uroot -p'zsd@7101'

mysql: [Warning] Using a password on the command line interface can be insecure.

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 3

Server version: 5.7.22-log MySQL Community Server (GPL)

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

(root@localhost) [(none)]>