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大环境

时间:2019-12-18 11:09:48      阅读:106      评论:0      收藏:0      [点我收藏+]

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一. 用三台机器 一台做ansible+playbook 搭建lnmp环境 

IP分配 

ansible 主机192.168.202.132

lnmp第一台主机 192.168.202.131

lnmp第一台主机 192.168.202.133

1.1 ansible主机安装ansible

[root@localhost ~]# yum -y install ansible
已加载插件:fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.jdcloud.com
 * extras: mirror.bit.edu.cn 

1.2 ansible主机生成密钥设置免密码登录

[root@localhost ~]# ssh -keygen
Bad escape character ‘ygen‘.
[root@localhost ~]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_r
Created directory ‘/root/.ssh‘.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_
Your public key has been saved in /root/.ssh/id_rsa.
The key fingerprint is:
SHA256:snafmBirD5A4bkRNfs/yraWQ7BqJf4SKpLd0UO5yZyA rhost
The key‘s randomart image is:
+---[RSA 2048]----+
|   .             |
|  +              |
| . o..           |
|.. +. o          |
|o.E +..oS        |
|oo.*oo+o.        |
|+++o*+*..o       |
|+oo+o*.=++ .     |
| ..++++oo o      |
+----[SHA256]-----+
[root@localhost ~]# ssh-copy-id root@192.168.202.131
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be i "/root/.ssh/id_rsa.pub"
The authenticity of host ‘192.168.202.131 (192.168.2can‘t be established.
ECDSA key fingerprint is SHA256:+YOuMKydPwvlPwXHq3Cgj6X6jdlupF1W3A.
ECDSA key fingerprint is MD5:33:f9:54:0f:ce:1e:53:96:96:29:e3:04:7c.
Are you sure you want to continue connecting (yes/no
/usr/bin/ssh-copy-id: INFO: attempting to log in wit key(s), to filter out any that are already installe
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be in- if you are prompted now it is to install the new k
root@192.168.202.131‘s password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh ‘root202.131‘"
and check to make sure that only the key(s) you wantdded.
[root@localhost ~]# ssh-copy-id root@192.168.202.133

  

1.3 ansible主机配置

[root@localhost ~]# vim /etc/ansible/hosts 

[lnmp]
192.168.202.131
192.168.202.133

 如图:

技术图片

 

 

 1.4 编写ansible的playbook  

---
        - hosts: lnmp
          tasks:
                - name: "安装需要的环境"
                  yum: name=gcc,gcc-c++,make,php,php-gd,php-mysql,php-fpm,pcre-devel,zlib-devel,mariadb,mariadb-server state=latest
                - name: "导入nginx包"
                  unarchive: src=nginx-1.16.1.tar.gz dest=/root
                - name: "编译安装"
                  shell: cd /root/nginx-1.16.1 && ./configure && make && make install
                - name: "分发配置文件"
                  copy: src=nginx.conf dest=/usr/local/nginx/conf/nginx.conf
                - name: "分发主界面"
                  copy: src=info.php dest=/var/www/html/info.php
                - name: 启动nginx
                  shell: /usr/local/nginx/sbin/nginx
                - name: "启动mysql"
                  shell: systemctl restart mariadb
                - name: "启动php-fpm"
                  shell: systemctl restart php-fpm
                - name : "关闭防火墙"
                  shell: systemctl stop firewalld
                - name: "关闭selinux"
                  shell: setenforce 0
~                                      

 

 

1.4.2 更改nginx的配置文件

技术图片

技术图片

1.4.3 分发一个php的测试界面

技术图片

1.4.4 执行ansible-playbook

技术图片

 技术图片

1.4.5 展示效果看看lnmp是否搭建成功

技术图片

 

 

 

一.ansible主机完成

二.lnmp主机配置MySQL实现数据库的同步做数据库的互为主主然后做高可用

lnmp第一台主机 192.168.202.131 主

lnmp第一台主机 192.168.202.133  备份

2.1编辑配置文件 

192.168.202.131 操作

[root@localhost ~]# vim /etc/my.cnf
server-id=1
log-bin=mysql-bie
relay-log=mysql-relay
[root@localhost ~]# systemctl restart mariadb

192.168.202.133 操作

[root@localhost ~]# vim /etc/my.cnf
server-id=2
log-bin=mysql-bin
relay-log=mysql-relay
[root@localhost ~]# systemctl restart mariadb

2.2 主mysql授权

192.168.202.131操作

[root@localhost ~]# mysql
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 2
Server version: 5.5.64-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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

MariaDB [(none)]> grant all on *.* to tom@% identified by123;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> show master status;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bie.000001 |      443 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)

2.3 从上接受主的二进制日志更改slave

192.168.202.133 操作

[root@localhost ~]# mysql
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 2
Server version: 5.5.64-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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

MariaDB [(none)]> stop slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)

MariaDB [(none)]> change master to
-> master_host=192.168.202.131,
    -> master_user=tom,
    -> master_password=123,
    -> master_log_file=mysql-bie.000001,
    -> master_log_pos=443;
Query OK, 0 rows affected (0.01 sec)

MariaDB [(none)]> start slave;
Query OK, 0 rows affected (0.11 sec)

2.4 查看有没有主从设置成功 如果是yes 表示成功

192.168.202.133 操作

 

2.5 设置主主

192.168.202.133 操作 给权限

MariaDB [(none)]>  grant all on *.* to ‘tom‘@‘%‘ identified by‘123‘;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>  flush privileges;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> show master status;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 |      443 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)

2.6 更改slave

192.168.202.131 操作  

[root@localhost ~]# mysql
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 4
Server version: 5.5.64-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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

MariaDB [(none)]> stop slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)

MariaDB [(none)]> change master to
    -> master_host=192.168.202.133,
    -> master_user=tom,
    -> master_password=123,
    -> master_log_file=mysql-bin.000001,
    -> master_log_pos=443;
Query OK, 0 rows affected (0.13 sec)

MariaDB [(none)]> start slave;
Query OK, 0 rows affected (0.00 sec)

2.7 查看主主有没有配置成功 

两台主机都测试  是不是都是yes  主主设置完毕

MariaDB [(none)]> show slave status \G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.202.131
                  Master_User: tom
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bie.000001
          Read_Master_Log_Pos: 443
               Relay_Log_File: mysql-relay.000002
                Relay_Log_Pos: 529
        Relay_Master_Log_File: mysql-bie.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
MariaDB [(none)]>  show slave status \G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.202.133
                  Master_User: tom
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000001
          Read_Master_Log_Pos: 443
               Relay_Log_File: mysql-relay.000002
                Relay_Log_Pos: 529
        Relay_Master_Log_File: mysql-bin.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes

2.8 设置MySQL的高可用 一台MySQL关闭了以后自动换另一台不影响存储数据

 

  

 

  

  

二.lnmp主机配置mysql高可用完成

大环境

标签:ber   round   finger   warning   des   授权   print   --   表示   

原文地址:https://www.cnblogs.com/gaiting/p/12056918.html

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