1.制作本地域名解析

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.89.140 zabbix-node0    
192.168.89.141 zabbix-node1
192.168.89.142 zabbix-node2
192.168.89.143 zabbix-node3
192.168.89.144 zabbix-node4
192.168.89.145 zabbix-node5
192.168.89.146 zabbix-node6
192.168.89.147 zabbix-node7
192.168.89.148 zabbix-node8
192.168.89.149 zabbix-node9
192.168.89.150 zabbix-node10 
192.168.89.151 zabbix-node11
192.168.89.152 zabbix-node12

2.创建变量文件

将受控节点的ip和节点名写入新的变量文件，目的是为了能在ansible里正确引用ip和hostname,参考命令:

cat /etc/hosts|grep 192|awk '{print "  - hostname: " $2 "\n    ip: "$1}' |sed -r '1i\- computers:' > /root/ansible/ip_name.yaml

3.编写远程发送公钥的expect脚本

ssh-keygen生成一对不对成的公钥和私钥

vim expect1        #制作自动化发送公钥的脚本

#!/bin/expect
set pass 123123
set timeout -1     #一定要写，防止连接超时
set ip [ lindex $argv 0 ]     #接收变量
spawn ssh-copy-id $ip 
expect {
  "yes/no" { send "yes\r"; exp_continue }
  "password: " { send "$pass\r" };
}
interact

4.用shell脚本实现免密登录

制作简易脚本，不进行验证输入参数的正确与否，仅供参考

vim /root/ansible/ssh-copy-id.sh

#!/bin/bash
read -p "请输入你要远程发送公钥的ip范围(例如：192.168.89.140-192.168.89.147):" ADDR

IP41=`echo $ADDR|awk -F'.' '{print $4}'|awk -F'-' '{print $1}'` 
IP42=`echo $ADDR|awk -F'.' '{print $7}'` 
IP11=`echo $ADDR|awk -F'.' '{print $1}'` 
IP12=`echo $ADDR|awk -F'.' '{print $4}'|awk -F'-' '{print $2}'` 
IP21=`echo $ADDR|awk -F'.' '{print $2}'` 
IP22=`echo $ADDR|awk -F'.' '{print $5}'` 
IP31=`echo $ADDR|awk -F'.' '{print $3}'` 
IP32=`echo $ADDR|awk -F'.' '{print $6}'` 

for (( i=$IP41;i<=$IP42;i++ ));do
  ping -c1 $IP11.$IP21.$IP31.$i >/dev/null
  hostname$i=`cat /etc/hosts |grep $IP11.$IP21.$IP31.$i|awk '{print $2}'`     #实现ip向hostname的转换
  if [ $? -eq 0 ];then
    ./expect01 $IP11.$IP21.$IP31.$i     #对ip做信任登录
    ./expect01 $((hostname$i))          #对hostname做信任登录
  else
    echo "$IP11.$IP21.$IP31.$i 不可达"
  fi  
done

 5.编写修改hostname的shell脚本

该脚本用于ansible自动化修改节点主机名

  1 #!/bin/bash
  2 hostnamectl set-hostname $1                                

 6.编写zabbix-agent自动化部署yml剧本

剧本流程：

1. 修改节点hostname

2. 下载zabbix-release-5.0 rpm包

3. 安装zabbix-release-5.0 repo文件

4. 禁用epel源

5. 安装zabbix-agent和zabbix-sender

6. 修改zabbix-agent配置文件

7. 启动zabbix-agent并设置开机自启

---
- name: install zabbix-agent
  hosts: test
  vars_files:
  - /root/ansible/ip_name.yaml
  tasks:
  - name: Run a script for each computer
    script: /root/ansible/hostnamectl.sh "{{ item.name }}"
    loop: "{{ computers }}"
    when: item.ip in ansible_all_ipv4_addresses
  - name: Download zabbix-agent
    get_url:
      url: https://repo.zabbix.com/zabbix/5.0/rhel/7/x86_64/zabbix-release-5.0-1.el7.noarch.rpm
      dest: /etc/zabbix-release-5.0-1.el7.noarch.rpm
  - name: install zabbix rpm from a local file
    yum:
      name: /etc/zabbix-release-5.0-1.el7.noarch.rpm
      state: present
  - name: This command will change the working directory to somedir/.
    shell:
      cmd: mv epel.repo epel.repo.bak
      chdir: /etc/yum.repos.d/
      creates: epel.repo.bak
  - name: ensure a list of packages installed
    yum:
      name: "{{ packages }}"
    vars:
      packages:
      - zabbix-agent
      - zabbix-sender
 - name: exchange Server ip
    lineinfile:
      path: /etc/zabbix/zabbix_agentd.conf
      regexp: '^Server=127.0.0.1'
      line: Server=192.168.89.111        #修改为zabbix-server端ip
  - name: exchange ServerActive ip
    lineinfile:
      path: /etc/zabbix/zabbix_agentd.conf
      regexp: '^ServerActive=127.0.0.1'
      line: ServerActive=192.168.89.111    #修改为zabbix-server端ip
  - name: exchange Hostname
    lineinfile:
      path: /etc/zabbix/zabbix_agentd.conf 
      regexp: '^Hostname='
      line: Hostname={{ ansible_hostname }}
  - name: exchange UnsafeUserParameters to 1 
    lineinfile:
      path: /etc/zabbix/zabbix_agentd.conf 
      regexp: '^# UnsafeUserParameters='
      line: UnsafeUserParameters=1        #启用特殊字符
  - name: Make sure a service is running
    systemd:
      name: zabbix-agent 
      state: started
      enabled: yes 
  - name: restart zabbix-agent 
    systemd:
      name: zabbix-agent 
      state: restarted

7.其他

zabbix-agent端部署完毕，仍需要关注的几个问题：

1.部署zabbix-server端

2.该剧本部署的为被动式监控系统，如要更换为主动式，仍需进行少许配置修改

3.zabbix网页端网址为http://server端ip:10050，默认用户Admin，密码zabbix

4.在网页端添加主机和监控项，完成zabbix报警监控系统