ansible-playbook安装zabbix_server，agent监控

主要完成通过playbook自动生成zabbix_server,agent，这里没有完全实现自动化，这里机器的获取还是需要人为手工填写，如果感兴趣想通过自动获取需要部署的机器可以通过namp扫描工具awk命令截取，这里不过多描述。我用两台机器做的测试，老版本的模块用法会有差异，如果无法执行可以通过官网去查看https://ansible-tran.readthedocs.io/en/latest/,参考文档https://www.cnblogs.com/LyShark/p/10886486.html

ansible 2.4.2
zabbix 3.4.15

• 安装nmap扫描工具

  yum install nmap -y
  #通过ping探测172.16.9.0网段中存活机器
  nmap -sP 172.16.9.0/24
  

完成机器间的免密登录

• 生成公钥对

  ssh-keygen -t rsa
  

• 设置ansible hosts配置

  [test]
  172.16.9.141 ansible_ssh_user="root" ansible_ssh_pass="root"
  172.16.9.142 ansible_ssh_user="root" ansible_ssh_pass="root"
  
  [zabbix_server]
  172.16.9.141
  [zabbix_client]
  172.16.9.142
  

• 批量推送公钥到集群节点

  - hosts: test
    user: root
    tasks:
    - name: ssh-copy
      authorized_key: user=root key="{{ lookup('file', '/root/.ssh/id_rsa.pub') }}"
      tags:
      - sshkey
  

  报错:

  FAILED! => {"msg": "Using a SSH password instead of a key is not possible because Host Key checking is enabled and sshpass does not support this.  Please add this host's fingerprint to your known_hosts file to manage this host."}
  

  解决：

  /etc/ansible/ansible.cfg

  修改host_key_checking(默认是check的)

• playbook构建zabbix_server(官方建议一个play写一个独立的任务，测试不过多计较了)

  # 初始化，关闭防火墙和SELINUX
  - hosts: zabbix_server
    tasks:
      - name: off selinux
        shell: setenforce 0
      - name: seline modify enforcing
        lineinfile:
          dest: /etc/selinux/config
          regexp: '^SELINUX='
          line: 'SELINUX=disabled'
      - name: seline firealld
        shell: systemctl stop firewalld && systemctl disable firewalld
  # 安装部署LAMP环境，通过YUM模块快速安装
  - hosts: zabbix_server
    tasks:
    - name: install LAMP
      yum: name={{item}} state=installed
      with_items:
        - httpd
        - httpd-devel
        - mariadb
        - mariadb-server
        - php
        - php-mysql
    - name: start httpd
      shell: systemctl restart httpd
    - name: start mariadb
      shell: systemctl restart mariadb
  # 下载YUM源，更新EOEL源，安装Zabbix
  - hosts: zabbix_server
    tasks:
      - name: clear YUM
        shell: rm -rf /etc/yum.repos.d/*
      - name: install YUM EPEL
        get_url: 'url=http://mirrors.aliyun.com/repo/Centos-7.repo dest=/etc/yum.repos.d/CentOS-Base.repo'
      - name: yum install EPEL -y
        yum: name=epel-release state=installed
      - name: install zabbix.repo
        shell: rpm -i http://repo.zabbix.com/zabbix/3.4/rhel/7/x86_64/zabbix-release-3.4-2.el7.noarch.rpm
      - name: install zabbix
        yum: name={{item}} state=installed
        with_items:
          - zabbix-server-mysql
          - zabbix-web-mysql
          - zabbix-agent
      - name: start zabbix-server
        shell: systemctl restart zabbix-server
      - name: start zabbix-agent
        shell: systemctl restart zabbix-agent
  # 安装配置数据库权限，导入zabbix数据库
  - hosts: zabbix_server
    tasks:
      - name: set mariadb password
        shell: mysqladmin -u root password 'ansible'
      - name: create zabbix master databases
        shell: mysql -uroot -pansible -e 'create database zabbix character set utf8 collate utf8_bin;'
      - name: set zabbix master databases grant
        shell: mysql -uroot -pansible -e 'grant all privileges on zabbix.* to zabbix@localhost identified by "zabbix";'
      - name: import zabbix initial data SQL shell
        shell: zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -uzabbix -pzabbix zabbix
  # 修改并拷贝配置文件，给予权限
  - hosts: zabbix_server
    tasks:
      - name: edit zabbix dbhost
        lineinfile:
          dest: /etc/zabbix/zabbix_server.conf
          regexp: '# DBHost=localhost'
          line: 'DBHost=localhost'
      - name: edit zabbix dbpasswd
        lineinfile:
          dest: /etc/zabbix/zabbix_server.conf
          regexp: '# DBPassword='
          line: 'DBPassword=zabbix'
      - name: cp zabbix web
        shell: cp -a /usr/share/zabbix/* /var/www/html/
      - name: chmod web
        shell: chmod 755 -R /var/www/html/*
      - name: chown web
        shell: chown apache.apache -R /var/www/html/*
  
      - name: set php
        shell: echo "date.timezone = Asia/Shanghai" >> /etc/php.ini
      - name: set php
        shell: echo "max_execution_time = 300" >> /etc/php.ini
      - name: set php
        shell: echo "max_input_time = 300" >> /etc/php.ini
      - name: set php
        shell: echo "post_max_size = 32M" >> /etc/php.ini
      - name: set php
        shell: echo "memory_limit = 128M" >> /etc/php.ini
      - name: set php
        shell: echo "mbstring.func_overload = 0" >> /etc/php.ini
  
      - name: start http mysql zabbix
        shell: systemctl restart httpd ; systemctl restart mariadb
      - name: start http mysql zabbix
        shell: systemctl restart zabbix-server ; systemctl restart zabbix-agent
      - name: enabled http mysql zabbix
        shell: systemctl enable httpd ; systemctl enable mariadb
      - name: start http mysql zabbix
        shell: systemctl enable zabbix-server ; systemctl enable zabbix-agent
  

  • playbook构建zabbixclient

  ---
  # 初始化，关闭防火墙和SELINUX
  - hosts: zabbix_client
    tasks:
      - name: off selinux
        shell: setenforce 0
      - name: seline modify enforcing
        lineinfile:
          dest: /etc/selinux/config
          regexp: '^SELINUX='
          line: 'SELINUX=disabled'
      - name: seline firealld
        shell: systemctl stop firewalld && systemctl disable firewalld
  # 安装zabbix_client
  - hosts: zabbix_client
    vars: 
      zabbix_server_ip: 172.16.9.141
      zabbix_agent_ip: 172.16.9.142
  
    tasks:
      - name: install zabbix_client
        shell: rpm -ivh http://repo.zabbix.com/zabbix/3.4/rhel/7/x86_64/zabbix-agent-3.4.15-1.el7.x86_64.rpm  
      - name: Install zabbix agent
        shell: yum -y install zabbix-agent
      - name: modify zabbix server ip address
        shell: sed -i 's#Server=127.0.0.1#Server='{{zabbix_server_ip}}'#g' /etc/zabbix/zabbix_agentd.conf
      - name: modify zabbix server active ip addr
        shell: sed -i 's/ServerActive=127.0.0.1/ServerActive='{{zabbix_server_ip}}'/g' /etc/zabbix/zabbix_agentd.conf
      - name: Enable remote command execution
        shell: sed -i 's/# EnableRemoteCommands=0/EnableRemoteCommands=1'/g /etc/zabbix/zabbix_agentd.conf
      - name: Enable remote command logs
        shell: sed -i 's/# LogRemoteCommands=0/LogRemoteCommands=1'/g /etc/zabbix/zabbix_agentd.conf
      - name: modify zabbix agent hostname
        shell: sed -i 's/Hostname=Zabbix server/Hostname='{{zabbix_agent_ip}}'/g' /etc/zabbix/zabbix_agentd.conf
      - name: enable zabbix-agent
        shell: systemctl start zabbix-agent ;systemctl enable zabbix-agent
  

再来几个检查语法结构，主机是否生效的命令

ansible-playbook install_zabbix_server.yaml --syntax-check
ansible-playbook install_zabbix_server.yaml --list-task
ansible-playbook install_zabbix_server.yaml --list-hosts