剧本---Ansible实现自动化安装MariaDB

---

创建剧本

构建思路，生成目录树

[root@Ansible ansible]# tree
.
├── ansible.cfg
├── hostname.yml
├── hosts
├── mariadb.yml
├── role_mariadb.retry
├── role_mariadb_threng.yml
├── role_mariadb.yml
└── roles
    ├── mariadb
    │   ├── files
    │   │   └── mariadb.tar.gz
    │   └── tasks
    │       ├── config1.yml
    │       ├── config2.yml
    │       ├── config3.yml
    │       ├── data.yml
    │       ├── dir.yml
    │       ├── early.yml
    │       ├── group.yml
    │       ├── link.yml
    │       ├── main.yml
    │       ├── owner.yml
    │       ├── path.yml
    │       ├── source.yml
    │       ├── start1.yml
    │       ├── start2.yml
    │       ├── start3.yml
    │       ├── unpack.yml
    │       └── user.yml
    └── mariadb_streng
        ├── files
        │   └── mariadb.exp
        └── tasks
            ├── main.yml
            ├── streng.yml
            └── thening.yml

7 directories, 29 files

初期准备

1、创建好目录文件
   [root@Ansible ansible]# mkdir roles/{mariadb/{files,tasks},mariadb_streng{files,tasks}}

2、将下载好的mariadb压缩包放在角色目录files下，以便ansible服务器可以通过copy模块拷贝到客户端

安装必要的包，避免出错：early.yml

[root@Ansible mariadb]# cat tasks/early.yml
- name: on the early
  yum: name=expect,libaio

创建组：group.yml

[root@Ansible mariadb]# cat tasks/group.yml
---
# Group mysql
- name: Group
  group: name=mysql gid=336 system=yes

创建用户：user.yml

[root@Ansible mariadb]# cat tasks/user.yml
---
# User
- name: User
  user: name=mysql uid=336 group=mysql system=yes home=/data/mysql shell=/sbin/nologin

解压：unpack.yml

[root@Ansible mariadb]# cat tasks/unpack.yml
---
# Unpack
- name: Unpack mariadb
  unarchive: src=/etc/ansible/roles/mariadb/files/mariadb.tar.gz dest=/usr/local copy=yes

创建硬链接：link.yml

[root@Ansible mariadb]# cat tasks/link.yml
---
# Link
- name: create link
  file: src=/usr/local/mariadb-10.2.23-linux-x86_64/ dest=/usr/local/mysql state=link

给目录以及子文件添加属主属组：owner.yml

[root@Ansible mariadb]# cat tasks/owner.yml
---
# owner group
- name: owner group
  file: path=/usr/local/mysql owner=root group=root recurse=yes state=directory

添加PATH变量：path.yml

[root@Ansible mariadb]# cat tasks/path.yml
- name: PATH
  shell: echo PATH=/usr/local/mysql/bin:$PATH >/etc/profile.d/mysql.sh

PATH变量生成：source.yml

[root@Ansible mariadb]# cat tasks/source.yml
- name: source
  shell: source /etc/profile.d/mysql.sh

准备数据库数据目录：dir.yml

[root@Ansible mariadb]# cat tasks/dir.yml
- name: directory
  file: path=/data/mysql state=directory owner=mysql group=mysql

生成数据目录：data.yml

[root@Ansible mariadb]# cat tasks/data.yml
- name: data
  shell: /usr/local/mysql/scripts/mysql_install_db --datadir=/data/mysql --user=mysql

生成配置文件：config{1,2,3}.yml

[root@Ansible mariadb]# cat tasks/config1.yml
- name: config
  file: path=/etc/mysql state=directory

[root@Ansible mariadb]# cat tasks/config2.yml
- name: config2
  copy: src=/usr/local/mysql/support-files/my-huge.cnf dest=/etc/mysql/my.cnf remote_src=yes

[root@Ansible mariadb]# cat tasks/config3.yml
- name: config3
  lineinfile: dest=/etc/mysql/my.cnf insertafter="^\[mysqld\]"  line="datadir=/data/mysql"

启动剧本：start{1,2,3}.yml

[root@Ansible mariadb]# cat tasks/start1.yml
- name: start1
  copy: src=/usr/local/mysql/support-files/mysql.server dest=/etc/init.d/mysqld remote_src=yes

[root@Ansible mariadb]# cat tasks/start2.yml
- name: start2
  shell: chkconfig --add mysqld

[root@Ansible mariadb]# cat tasks/start3.yml
- name: service
  service: name=mysqld state=started

主文件main.yml，对剧本任务进行排序

[root@Ansible ansible]# cat roles/mariadb/tasks/main.yml
- include: early.yml
- include: group.yml
- include: user.yml
- include: unpack.yml
- include: link.yml
- include: owner.yml
- include: path.yml
- include: source.yml
- include: dir.yml
- include: data.yml
- include: config1.yml
- include: config2.yml
- include: config3.yml
- include: start1.yml
- include: start2.yml
- include: start3.yml

角色剧本

[root@Ansible ansible]# cat role_mariadb.yml
---
- hosts: all

  roles:
    - role: mariadb

执行角色剧本,开始剧本表演

[root@Ansible ansible]# ansible-playbook role_mariadb.yml

编写mysql安全加固剧本

编写expect脚本，实现一键安全加固

[root@CentOS6 ~]# vim /etc/ansible/roles/mariadb_streng/files/mariadb.exp
#!/usr/bin/expect
set timeout 60
#set password [lindex $argv 0]
spawn mysql_secure_installation
expect {
        "enter for none" { send "\r"; exp_continue}
        "Change the root password" { send "\r"; exp_continue}
        "New password" { send "123456\r"; exp_continue}
        "Re-enter new password" { send "123456\r"; exp_continue}
        "Remove anonymous users" { send "\r"; exp_continue}
        "Disallow root login remotely" { send "\r"; exp_continue}
        "Remove test database and access to it" { send "\r"; exp_continue}
        "Reload privilege tables now" { send "\r"; exp_continue}
        "Cleaning up" { send "\r"}
}
interact ' > mysql_secure_installation.exp

部署剧本任务

[root@Ansible ansible]# cat roles/mariadb_streng/tasks/streng.yml
---
# strengthening
- name: streng
  copy: src=mariadb.exp dest=/root mode=u+x

[root@Ansible ansible]# cat roles/mariadb_streng/tasks/thening.yml
---
# strengthening
- name: thening
  shell: /root/mariadb.exp

对剧本任务进行排序

[root@Ansible ansible]# cat roles/mariadb_streng/tasks/main.yml
- include: streng.yml
- include: thening.yml

剧本主程序

[root@Ansible ansible]# cat role_mariadb_threng.yml
- hosts: 192.168.36.101

  roles:
    - role: mariadb_streng

执行剧本主程序，实现安全加固

[root@Ansible ansible]# ansible-playbook role_mariadb_threng.yml

PLAY [192.168.36.101] *********************************************************************************************

TASK [Gathering Facts] ********************************************************************************************
ok: [192.168.36.101]

TASK [mariadb_streng : streng] ************************************************************************************
changed: [192.168.36.101]

TASK [mariadb_streng : thening] ***********************************************************************************
changed: [192.168.36.101]

PLAY RECAP ********************************************************************************************************
192.168.36.101             : ok=3    changed=2    unreachable=0    failed=0