企业ansible学习（2）-----利用角色自动化部署zabbix（包含db、zabbix-server、zabbix-web、zabbix-agent)

短命女 2023-06-17 05:59 29阅读 0赞

#### 一、需要知道 ####

files：存放需要同步到异地服务器的源码文件及配置文件；  
handlers：当资源发生变化时需要进行的操作，若没有此目录可以不建或为空；  
meta：存放说明信息、说明角色依赖等信息，可留空；  
tasks：zabbix安装过程中需要进行执行的任务；  
templates：用于执行zabbix安装的模板文件，一般为脚本；  
vars：本次安装定义的变量

#### 二、环境准备 ####

<table> 
 <thead> 
  <tr> 
   <th>172.25.68.1</th> 
   <th>serevr1</th> 
   <th>ansible db库</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>172.25.68.2</td> 
   <td>server2</td> 
   <td>server</td> 
  </tr> 
  <tr> 
   <td>172.25.68.3</td> 
   <td>serevr3</td> 
   <td>web</td> 
  </tr> 
  <tr> 
   <td>172.25.68.4</td> 
   <td>serevr4</td> 
   <td>agent</td> 
  </tr> 
 </tbody> 
</table>

**1、serevr1的ansible准备**  
1、配置epel源：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 1]  
2、安装ansible  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 2]

3.创建devops用户，做visudo,各机之间的免密：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 3]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 4]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 6]

##### 三、创建角色 #####

为了规范在/home/devops创建ansible目录  
并且创建roles目录  
![在这里插入图片描述][20191127205530483.png]

cd /home/devops/ansible/roles 
    ansible-galaxy init mariadb #使用init命令创建新的角色
     ansible-galaxy init web 
     ansible-galaxy init zabbix-server 
     ansible-galaxy init zabbix-agent

![在这里插入图片描述][20191127205416478.png]

db角色：

##### 1.编写tasks/main.yml文件 #####

---
    - name: install mariadb
        yum:
          name: mariadb-server,MySQL-python
          state: present
    
    - name: config mariadb
        copy:
          src: my.cnf
          dest: /etc/my.cnf
        notify: restart mariadb
    
    - name: start mariadb
        service:
          name: '{
       { item }}'
          state: started
          enabled: yes
        loop:
          - mariadb
          - firewalld
    
    - name: create database zabbix
        mysql_db:
          login_user: root
          login_password: westos 
          name: zabbix
          state: present
        notify: import create.sql 
    
     - name: create user
         mysql_user:
           login_user: root
           login_password: westos 
           name: zabbix
           password: zabbix
           host: '%'
           priv: 'zabbix.*:ALL'
           state: present
    
    - name: copy create.sql
        copy:
          src: create.sql.gz
          dest: /tmp/create.sql.gz
    
    
     - name: config firewalld
         firewalld:
           service: mysql
           permanent: yes
           immediate: yes
           state: enabled

![在这里插入图片描述][2019112720571373.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 7]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 8]

##### 2.编写触发器文件handlers/main.yml #####

注意：名字必须跟之前一致

---
    - name: restart mariadb
        service:
          name: mariadb
          state: restartedi
    - name: import database
        mysql_db:
          login_user: root
          login_password: westos
          name: zabbix
          state: import
          target: /tmp/create.sql.gz

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 9]

##### 3.在server2安装zabbix-serevr-mysql #####

1）配置zabbix的yum源  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 10]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 11]  
2）安装软件：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 12]  
4）将create.sql.gz发给server1  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 13]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 14]  
5）将my.cnf同时复制到file：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 15]  
6）修改my.cnf：  
识别utf-8  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NDI1MDM1_size_16_color_FFFFFF_t_70 16]

serevr角色

##### 1.配置task的main.yml #####

---
    # tasks file for zabbix-server
    - name: add zabbix repo 
      yum_repository:
        name: zabbix
        description: zabbix 4.0
        baseurl: https://mirrors.aliyun.com/zabbix/zabbix/4.0/rhel/7/x86_64/
        gpgcheck: no
    
    - name: add update repo
      yum_repository:
        name: update
        description: non-supported
        baseurl: https://mirrors.aliyun.com/zabbix/non-supported/rhel/7/x86_64/
        gpgcheck: no
    
    - name: install zabbix-server #安装zabbix-server
      yum: 
        name: zabbix-server-mysql,zabbix-agent
        state: present
    
    - name: config zabbix-server  #配置服务
      copy:
        src: zabbix_server.conf
        dest: /etc/zabbix/zabbix_server.conf
        owner: root
        group: zabbix
        mode: 640
      notify: restart zabbix-server
    
    - name: start zabbix-server #开启服务
      service:
        name: "{
       { item }}"
        state: started
      loop:
        - zabbix-server  
        - zabbix-agent  
        - firewalld
    
    - name: config firewalld  
      firewalld:
        port: 10051/tcp  #添加通信端口
        permanent: yes
        immediate: yes
        state: enabled

##### 2.配置触发器文件handlers/main.yml #####

--------------------

- name: restart zabbix-server
      service:
        name: zabbix-server
        state: restarted

##### 3、在files目录中导入服务要用到的动态文件 #####

1).在server3安装数据库zabbix-server，将配置文件/etc/zabbix/zabbix\_server.conf 拷贝到/home/devops/ansible/roles/server/files/，

DBHost=172.25.68.3
    DBName=zabbix
    DBUser=zabbix
    DBPassword=zabbix
    DBPort=3306

web角色：

##### 1.配置tasks/main.yml文件 #####

---
    # tasks file for web
    - name: add zabbix repo
      yum_repository:
        name: zabbix
        description: zabbix 4.0
        baseurl: https://mirrors.aliyun.com/zabbix/zabbix/4.0/rhel/7/x86_64/
        gpgcheck: no
    
    - name: add update repo
      yum_repository:
        name: update
        description: non-supported
        baseurl: https://mirrors.aliyun.com/zabbix/non-supported/rhel/7/x86_64/
        gpgcheck: no
    
    - name: add centos repo
      yum_repository:
        name: centos
        description: centos 7
        baseurl: https://mirrors.aliyun.com/centos/7/os/x86_64/
        gpgcheck: no
    
    - name: install zabbix-web
      yum:
        name: zabbix-web-mysql
        state: present
    
    - name: config zabbix-web
      copy:
        src: zabbix.conf
        dest: /etc/httpd/conf.d/zabbix.conf
      notify: restart httpd
    
    - name: start httpd
      service:
        name: "{
       { item }}"
        state: started
      loop:
        - httpd
        - firewalld
    
    - name: config firewalld
      firewalld:
        service: http
        permanent: yes
        immediate: yes
        state: enabled

##### 2、编写触发器文件handlers/main.yml #####

---
    # handlers file for web
    - name: restart httpd
      service:
        name: httpd
        state: restarted

##### 3、在files文件中导入服务要用到的动态文件 #####

在server3安装数据库zabbix-web-mysql，将配置文件/etc/httpd/conf.d/zabbix.conf 拷贝到/home/devops/ansible/roles/server/files/，修改：

php_value date.timezone Asia/Shanghai

agent角色:

##### 1.配置tasks/main.yml文件 #####

---
    # tasks file for zabbix-agent
    - name: add zabbix repo
      yum_repository:
        name: zabbix
        description: zabbix 4.0
        baseurl: https://mirrors.aliyun.com/zabbix/zabbix/4.0/rhel/7/x86_64/
        gpgcheck: no
    
    - name: install zabbix-agent
      yum:
        name: zabbix-agent
        state: present
    
    - name: config zabbix-agent
      template:
        src: zabbix_agentd.conf.j2
        dest: /etc/zabbix/zabbix_agentd.conf
        owner: root
        group: root
        mode: 644
      notify: restart zabbix-agent
    
    - name: start zabbix-agent
      service:
        name: "{
       { item }}"
        state: started
      loop:
        - zabbix-agent
        - firewalld
    
    - name: config firewalld
      firewalld:
        port: 10050/tcp
        permanent: yes
        immediate: yes
        state: enabled

##### 2. 配置触发器文件handlers/main.yml #####

---
    # handlers file for zabbix-agent
    - name: restart zabbix-agent
      service:
        name: zabbix-agent
        state: restarted

##### 3、提前在serevr4安装数据库zabbix-agent，将配制文件zabbix\_agentd.conf复制到/home/devops/ansible/roles/agent/templates目录下，并修改名称为模版zabbix\_agentd.conf.j2， #####

Server=172.25.68.2
    ServerActive=172.25.68.2
    Hostname= {
       { ansible_hostname }}

#### 四、配置整合角色的zabbix.yml ####

在/ansible下编写：

---
    - hosts:  zabbix
      roles:
        - role: db
          when: ansible_hostname == "server1"
        - role: server
          when: ansible_hostname == "server2"
        - role: web
          when: ansible_hostname == "server3"
       - role: agent
          when: ansible_hostname == "server4"

##### 五、推行zabbix.yml脚本 #####

（此时有数据库报错，未解决，待排错）

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