七、部署zabbix+Grafana实现对各主机的监控

7.1环境说明

主机	IP地址	备注
lb01	192.168.1.5	zabbix-agent收集指标
lb02	192.168.1.6	zabbix-agent收集指标
web01	192.168.1.7	zabbix-agent收集指标
web02	192.168.1.8	zabbix-agent收集指标
web03	192.168.1.9	zabbix-agent收集指标
Mysql-proxy	192.168.1.10	zabbix-agent收集指标
db01	192.168.1.11	zabbix-agent收集指标
db02	192.168.1.12	zabbix-agent收集指标
db03	192.168.1.13	zabbix-agent收集指标
MHA-Manager	192.168.1.14	zabbix-agent收集指标
NFS+Redis	192.168.1.16	zabbix-agent收集指标
Backup	192.168.1.17	zabbix-agent收集指标
zabbix+grafana	192.168.1.19	zabbix-server接收指标并使用grafana出图
EFK	192.168.1.20	日志收集系统

7.2服务端安装

执行主机zabbix+grafana

7.2.1 zabbix安装

准备zaibbix安装源

rpm -ivh http://repo.zabbix.com/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-1.el7.noarch.rpm
yum-config-manager --enable rhel-7-server-optional-rpms

安装zabbix服务端软件

yum install mariadb mariadb-server httpd zabbix-server-mysql zabbix-agent-mysql -y

启动数据库并设置密码

systemctl enable mariadb
systemctl start mariadb
mysqladmin -uroot -p password '123456'

创建zabbix数据库

mysql -uroot -p123456
create database zabbix character set utf8 collate utf8_bin;

创建zabbix用户

grant all privileges on zabbix.* to zabbix@localhost identified by 'zabbix';

初始化zabbix数据库

zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -uzabbix -p zabbix

配置zabbix-server配置文件，将DBHost注释打开

sed -i '/^#DBHost=/c DBHost=localhost' /etc/zabbix/zabbix_server.conf

配置web服务时区

sed -i '/date.timezone/a php_value date.timezone Asia/Shanghai' /etc/httpd/conf.d/zabbix.conf

启动服务

systemctl enable zabbix-server && systemctl start zabbix-server
systemctl enable httpd && systemctl start httpd

安装zabbix web前端

打开浏览器，输入http://192.168.1.19/zabbix，按提示操作即可

自动注册动作设置

登录web，在配置中创建自动注册类型动作，设置注册条件及选项即可进行管理

7.2.2 grafana安装

准备grafana安装源

cat > /etc/yum.repos.d/grafana.repo << 'EOF'
[grafana]
name=grafana
baseurl=https://packages.grafana.com/enterprise/rpm
repo_gpgcheck=1
enabled=1
gpgcheck=1
gpgkey=https://packages.grafana.com/gpg.key
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt
EOF

安装依赖

yum install initscripts urw-fonts wget -y

安装grafana

wget https://dl.grafana.com/enterprise/release/grafana-enterprise-9.2.1-1.x86_64.rpm
yum localinstall grafana-enterprise-9.2.1-1.x86_64.rpm

启动

systemctl enable grafana-server && systemctl start grafana-server

安装zabbix插件并重启grafana-server

grafana-cli plugins install alexanderzobnin-zabbix-app

登录grafana，开启zabbix插件

依次点击：Configuration--plugins--zabbix 选择 enable

配置数据源

依次点击：Configuration--Data sources--Add data source--zabbix
相关选项按以下填写
HTTP
URL:http://localhost/zabbix/api_jsonrpc.php
Zabbix API details
User:Admin
Password:zabbix
Save & test

创建仪表盘

Dashboards--New Dashboards--Add a new panel

 

7.3客户端

使用Anseble对各主机进行批量安装，在Openvpn主机上进行操作管理

安装ansible工具

yum install -y ansible

编写管理的主机清单

cat > /etc/ansible <<EOF
[lb]
192.168.1.5
192.168.1.6
[web]
192.168.1.7
192.168.1.8
192.168.1.9
[mysql-proxy]
192.168.1.10
[db]
192.168.1.11
192.168.1.12
192.168.1.13
192.168.1.14
[nfs]
192.168.1.16
[backup]
192.168.1.17
[zabbix]
192.168.1.19
[efk]
192.168.1.20
EOF

创建zabbix角色

ansible-galaxy init zabbix

准备zabbix_agent.conf配置文件，拷贝到角色的模板目录中，采取自动注册模式，使用facts变量生成对应主机的配置文件

vim /etc/ansible/roles/zabbix/template/zabbix._agent.conf
……
Server=192.168.1.19
……
ServerActive=192.168.1.19
……
Hostname={{ ansible_hostname }}
……

编写剧本任务

vim /etc/ansible/roles/zabbix/tasks/main.yml
---
- name: 1-安装zabbix 源
  shell:
    cmd: rpm -ivh http://repo.zabbix.com/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-1.el7.noarch.rpm
  when: ansible_eth0.ipv4.address != "192.168.1.19"
- name: 2-安装zabbix-agent
  yum: 
    name: zabbix-agent
    state: present
  when: ansible_eth0.ipv4.address != "192.168.1.19"
- name: 3-推送zabbix-agent.conf模板文件
  template:
    src: zabbix_agentd.conf
    dest: /etc/zabbix
  when: ansible_eth0.ipv4.address != "192.168.1.19"
- name: 4-启动zabbix-agnet
  service:
    name: zabbix-agent
    state: started
    enable: true
  when: ansible_eth0.ipv4.address != "192.168.1.19"

应用角色

vim /etc/ansible/roles/roles.yml
- hosts: all
  roles: zabbix

执行

ansible-playbook /etc/ansible/roles.yaml