Ansible 企业zabbix实战

掌握要点

（1）熟悉ansible的playbook的用法以及role的用法。

（2）熟悉如何使用ansible部署zabbix监控系统。

1.节点规划

IP地址	主机名称	节点名称
192.168.1.4	ansible	Ansible
192.168.1.11	zabbix	Zabbix

2.查看当前的目录

[root@ansible gpmall_ansible]# ls
group_vars  install_gpmall_cluster.yaml  roles
[root@ansible gpmall_ansible]# 
[root@ansible gpmall_ansible]# 
[root@ansible gpmall_ansible]# tree roles/zabbix/
roles/zabbix/
├── files
│   ├── yum.repo
│   └── zabbix.tar.gz
├── handlers
├── meta
├── tasks
│   └── main.yaml
├── templates
│   └── zabbix_server.conf.j2
└── vars

6 directories, 4 files

3.编写zabbix角色

⚫该角色的作用是在 Zabbix 节点上安装 Zabbix 监控服务。首先要配置基础环 境，安装 LAMP 环境，最后部署 Zabbix 监控系统。

⚫在 roles/zabbix/tasks 目录下，创建 main.yaml 文件。

[root@ansible gpmall_ansible]# cat roles/zabbix/tasks/main.yaml  
- name: selinux config 
  shell: "{{item}}"
  with_items: 
    - sed -i "s/^SELINUX=.*/SELINUX=disabled/g" /etc/selinux/config 
    - systemctl stop firewalld  

- name: config yum
  shell: mv /etc/yum.repos.d/* /media

- name: copy repo 
  copy: 
    src: yum.repo 
    dest: /etc/yum.repos.d/yum.repo 

- name: tar gz 
  unarchive: 
    src: zabbix.tar.gz 
    dest: /opt

- name: install packages 
  yum: 
    name: 
      - httpd 
      - mariadb  
      - mariadb-server 
    state: present 

- name: servce start 
  systemd: 
    name: "{{item}}" 
    state: restarted 
    enabled: yes 
  with_items: 
    - httpd 
    - mariadb 

- name: config mariadb user 
  shell: mysqladmin -uroot  password {{DB_PASS}} 
  ignore_errors: yes 

- name: mariadb create zabbix 
  shell: "{{item}}"
  ignore_errors: yes 
  with_items: 
    - mysql -uroot -p{{DB_PASS}} -e "create database zabbix character set utf8 collate utf8_bin;" 
    - mysql -uroot -p{{DB_PASS}} -e "grant all privileges on zabbix.* to zabbix@'%' identified by 'zabbix';"
    - mysql -uroot -p{{DB_PASS}} -e "grant all privileges on zabbix.* to zabbix@localhost identified by 'zabbix';"

- name: install zabbix 
  yum: 
    name: 
      - zabbix-server-mysql 
      - zabbix-web-mysql 
      - zabbix-agent 
      - trousers 
    state: present 

- name: sql config mariadb 
  shell: chdir=/usr/share/doc/zabbix-server-mysql-3.4.15/ zcat create.sql.gz | mysql -uroot -p{{DB_PASS}} zabbix 
  ignore_errors: yes 

- name: php time
  shell: "{{item}}" 
  with_items: 
    - sed -i "s/^;date.timezone.*/;date.timezone=RPC/g" /etc/php.ini 
    - sed -i "s/#\ php_value/php_value/g" /etc/httpd/conf.d/zabbix.conf 
    - sed -i "s/date.timezone.*/date.timezone Asia\/Shanghai/g" /etc/httpd/conf.d/zabbix.conf 

- name: config zabbix 
  template: 
    src: zabbix_server.conf.j2 
    dest: /etc/zabbix/zabbix_server.conf 

- name: restart httpd and zabbix-server 
  systemd: 
    name: "{{item}}"
    state: restarted 
    enabled: yes 
  with_items: 
    - httpd 
    - zabbix-server 

4.添加变量

⚫在roles的相同目录下面创建一个目录叫做**group_vars,**创建文件all，将所有变量写入。

⚫添加变量在all中。

[root@ansible gpmall_ansible]# cat group_vars/all 
···
DB_PASS: 123456 
DB_HOST: 127.0.0.1

5.编写role角色

⚫通过执行zabbix角色来快速部署zabbix。

⚫编写zabbix的role角色作为整个控制playbook的主要领导。

[root@ansible gpmall_ansible]# cat install_gpmall_cluster.yaml  
---
- hosts: zabbix 
  remote_user: root 
 
  roles: 
    - zabbix 

6.执行palybook

[root@ansible gpmall_ansible]# ansible-playbook install_gpmall_cluster.yaml  

PLAY [zabbix] ****************************************************************************************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************************************
ok: [192.168.1.11]

TASK [zabbix : config yum] ***************************************************************************************************************************************************************************************
changed: [192.168.1.11]

TASK [zabbix : copy repo] ****************************************************************************************************************************************************************************************
changed: [192.168.1.11]

TASK [zabbix : tar gz] *******************************************************************************************************************************************************************************************
  anged: [192.168.1.11]
▽
TASK [zabbix : install packages] *********************************************************************************************************************************************************************************
changed: [192.168.1.11]

TASK [zabbix : servce start] *************************************************************************************************************************************************************************************
changed: [192.168.1.11] => (item=httpd)
changed: [192.168.1.11] => (item=mariadb)

TASK [zabbix : config mariadb user] ******************************************************************************************************************************************************************************
changed: [192.168.1.11]

TASK [mariadb create zabbix] *************************************************************************************************************************************************************************************
changed: [192.168.1.11] => (item=mysql -uroot -p123456 -e "create database zabbix character set utf8 collate utf8_bin;")
changed: [192.168.1.11] => (item=mysql -uroot -p123456 -e "grant all privileges on zabbix.* to zabbix@'%' identified by 'zabbix';")
changed: [192.168.1.11] => (item=mysql -uroot -p123456 -e "grant all privileges on zabbix.* to zabbix@localhost identified by 'zabbix';")

TASK [install zabbix] ********************************************************************************************************************************************************************************************
changed: [192.168.1.11]

TASK [zabbix : sql config mariadb] *******************************************************************************************************************************************************************************
changed: [192.168.1.11]

TASK [zabbix : php time] *****************************************************************************************************************************************************************************************
changed: [192.168.1.11] => (item=sed -i "s/^;date.timezone.*/;date.timezone=RPC/g" /etc/php.ini)
changed: [192.168.1.11] => (item=sed -i "s/#\php_value/php_value/g" /etc/httpd/conf.d/zabbix.conf)
changed: [192.168.1.11] => (item=sed -i "s/date.timezone.*/date.timezone Asia\/Shanghai/g" /etc/httpd/conf.d/zabbix.conf)
[WARNING]: Consider using the replace, lineinfile or template module rather than running 'sed'.  If you need to use command because replace, lineinfile or template 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.

TASK [config zabbix] *********************************************************************************************************************************************************************************************
changed: [192.168.1.11]

TASK [restart httpd and zabbix-server] ***************************************************************************************************************************************************************************
changed: [192.168.1.11] => (item=httpd)
changed: [192.168.1.11] => (item=zabbix-server)

PLAY RECAP *******************************************************************************************************************************************************************************************************
192.168.1.11               : ok=13   changed=12   unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   

最后访问http://IP/zabbix