ansible-playbook实现MySQL的二进制部署

1、ansible服务器配置

1.1 安装ansible

# yum -y install ansible

1.2 配置主机清单文件

# vi /etc/ansible/hosts
[local]
10.0.0.7    ansible_connection=local    #指定连接类型为本地，无需通过ssh连接
[mysql]
10.0.0.17
10.0.0.27
10.0.0.37

1.3 mysql配置文件

# cat /apps/mysql/my.cnf
[mysqld]
user=mysql
datadir=/data/mysql
socket=/data/mysql/mysql.sock
innodb_file_per_table=on
skip_name_resolve = on		#禁止主机名解析，建议使用

[client]
port=3306
socket=/data/mysql/mysql.sock

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/data/mysql/mysql.pid

2、ssh免密授权

2.1 使用脚本实现

# bash ssh_key.sh
Generating public/private rsa key pair.
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:laHw87m60FI35AeBGdv5NhU8PW4Ol77WFPssLZK+LEY root@7-1
The key's randomart image is:
+---[RSA 2048]----+
|      . .+o  ... |
|       oo+ =  oo.|
|        = B   o.o|
|         * + o * |
|        S * = * o|
|       o .E= . +.|
|      o ...  . ++|
|       o .o.o oo=|
|        oo o+o.o |
+----[SHA256]-----+
sshpass-1.06-2.el7.x86_64
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh -o 'StrictHostKeyChecking=no' '10.0.0.7'"
and check to make sure that only the key(s) you wanted were added.

ssh: connect to host 10.0.0.3 port 22: Connection refused
lost connection
ssh: connect to host 10.0.0.3 port 22: Connection refused
lost connection
known_hosts                                                  100% 1195   619.5KB/s   00:00
known_hosts                                                                                                                                                100% 1195     1.1MB/s   00:00
known_hosts                                                                                                                                                100% 1195   604.3KB/s   00:00
known_hosts                                                                                                                                                100% 1195     1.8MB/s   00:00
known_hosts                                                                                                                                                100% 1195     1.6MB/s   00:00
known_hosts                                                                                                                                                100% 1195     1.5MB/s   00:00
known_hosts

2.2 ssh健康性检查

# ansible mysql -m ping
10.0.0.7 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
10.0.0.17 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
10.0.0.37 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
10.0.0.27 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"

3、批量安装mysql

# cat install-bin-mysql5.6.yml
---
# 批量安装二进制mysql5.6
# 将配置文件my.cnf放到目录/apps/mysql下
- hosts: mysql
  remote_user: root
  gather_facts: no

  tasks:
    - name: install packages
      yum : name=libaio,perl-Data-Dumper,autoconf state=installed
    - name: create group mysql
      group:
        name: mysql
        gid: 306
        system: yes
    - name: create user mysql
      user:
        name: mysql
        uid: 306
        group: mysql
        shell: /sbin/nologin
        system: yes
        home: /data/mysql
    - name: download mysql_file
      unarchive :
        src: "http://mirrors.163.com/mysql/Downloads/MySQL-5.6/mysql-5.6.51-linux-glibc2.12-x86_64.tar.gz"
        dest: "/usr/local"
        owner: root
        remote_src: yes
    - name: prepare Soft links
      shell: ln -s mysql-5.6.51-linux-glibc2.12-x86_64/ mysql
      args:
        chdir: "/usr/local"
    - name: bash mysql_instll_db
      shell: ./scripts/mysql_install_db --user=mysql --datadir=/data/mysql --basedir=/usr/local/mysql/
      args:
        chdir: "/usr/local/mysql"
    - name: prepare my.cnf
      copy:
        src: "/apps/mysql/my.cnf"
        dest: "/etc/my.cnf"
    - name: prepare service file
      shell: cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld && chkconfig --add mysqld && chkconfig mysqld on
    - name: add path
      shell: echo 'PATH=/usr/local/mysql/bin:$PATH' > /etc/profile.d/mysql.sh && . /etc/profile.d/mysql.sh
    - name: start mysql
      shell: service mysqld start

# ansible-playbook --syntax-check install-bin-mysql5.6.yml  #检查语法
# ansible-playbook install-bin-mysql5.6.yml #运行

PLAY [mysql] ******************************************************************************

TASK [install packages] *******************************************************************
changed: [10.0.0.17]
changed: [10.0.0.37]
changed: [10.0.0.27]

TASK [create group mysql] *****************************************************************
changed: [10.0.0.17]
changed: [10.0.0.27]
changed: [10.0.0.37]

TASK [create user mysql] ******************************************************************
changed: [10.0.0.37]
changed: [10.0.0.17]
changed: [10.0.0.27]

TASK [download mysql_file] ****************************************************************
changed: [10.0.0.17]
changed: [10.0.0.27]
changed: [10.0.0.37]

TASK [prepare Soft links] *****************************************************************
[WARNING]: Consider using the file module with state=link rather than running 'ln'.  If
you need to use command because file is insufficient you can add 'warn: false' to this
command task or set 'command_warnings=False' in ansible.cfg to get rid of this message.
changed: [10.0.0.27]
changed: [10.0.0.37]
changed: [10.0.0.17]

TASK [bash mysql_instll_db] ***************************************************************
changed: [10.0.0.37]
changed: [10.0.0.27]
changed: [10.0.0.17]

TASK [prepare my.cnf] *********************************************************************
changed: [10.0.0.37]
changed: [10.0.0.17]
changed: [10.0.0.27]

TASK [prepare service file] ***************************************************************
changed: [10.0.0.17]
changed: [10.0.0.27]
changed: [10.0.0.37]

TASK [add path] ***************************************************************************
changed: [10.0.0.27]
changed: [10.0.0.17]
changed: [10.0.0.37]

TASK [start mysql] ************************************************************************
[WARNING]: Consider using the service module rather than running 'service'.  If you need
to use command because service is insufficient you can add 'warn: false' to this command
task or set 'command_warnings=False' in ansible.cfg to get rid of this message.
changed: [10.0.0.37]
changed: [10.0.0.17]
changed: [10.0.0.27]

PLAY RECAP ********************************************************************************
10.0.0.17                  : ok=10   changed=10   unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
10.0.0.27                  : ok=10   changed=10   unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
10.0.0.37                  : ok=10   changed=10   unreachable=0    failed=0    skipped=0    rescued=0    ignored=0