使用 Docker安装 Zabbix并配置自定义监控项的过程详解

[root@Zabbix ~]# wget -O /etc/yum.repos.d/Centos-Base.repo Http://mirrors.aliyun.com/repo/Centos-7.repo
[root@Zabbix ~]# yum -y install epel-release
[root@Zabbix ~]# yum -y install yum-utils device-mapper-persistent-data lvm2
[root@Zabbix ~]# yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
[root@Zabbix ~]# yum -y install docker-ce-19.03.12 docker-ce-cli-19.03.12
[root@Zabbix ~]# systemctl enable docker --now

[root@Zabbix ~]# wget "https://GitHub.com/docker/compose/releases/download/v2.3.2/docker-compose-$(uname -s)-$(uname -m)" -O /usr/local/bin/docker-compose	
[root@Zabbix ~]# chmod +x /usr/local/bin/docker-compose
[root@Zabbix ~]# docker-compose --version

[root@Zabbix ~]# rpm -ivh http://repo.zabbix.com/zabbix/5.4/rhel/7/x86_64/zabbix-agent-5.4.8-1.el7.x86_64.rpm
[root@Zabbix ~]# egrep -v '^$|#' zabbix_agentd.conf 
PidFile=/var/run/zabbix/zabbix_agentd.pid
LogFile=/var/log/zabbix/zabbix_agentd.log
LogFileSize=0
Server=127.0.0.1
ServerActive=127.0.0.1
Hostname=Zabbix server
Include=/etc/zabbix/zabbix_agentd.d/*.conf
[root@Zabbix ~]# systemctl enable zabbix-agent --now

[root@Zabbix ~]# mkdir -p /app/zabbix
[root@Zabbix ~]# cd /app/zabbix/
[root@Zabbix zabbix]# cat <<END > docker-compose.yml
version: "3"
services:
  Mysql-server:
    image: mysql:5.7
    ports:
      - "3306:3306"
    volumes:
      - "/app/mysql:/var/lib/mysql"				# 配置数据卷 (防止监控数据丢失)
    environment:
      MYSQL_ROOT_PASSWord: 123123
      TZ: Asia/Shanghai
    command: --character-set-server=utf8 --collation-server=utf8_bin
    restart: always
  zabbix-server:
    image: zabbix/zabbix-server-mysql:5.4.8-centos
    environment:
      DB_SERVER_HOST: 127.0.0.1
      DB_SERVER_PORT: 3306
      MYSQL_DATABASE: zabbix
      MYSQL_USER: root
      MYSQL_PASSWORD: 123123
      TZ: Asia/Shanghai
    depends_on:
      - mysql-server
    restart: always
    network_mode: "host"						# 使用主机网络
  zabbix-web:
    image: zabbix/zabbix-web-nginx-mysql:5.4.8-centos
    ports:
      - "8000:8080"								# Zabbix WebUI 映射端口
    volumes:									# 当在 Web 界面配置成中文后,监控界面会出现乱码
      - "./simkai.ttf:/usr/share/zabbix/assets/fonts/DejaVuSans.ttf"
    environment:
      DB_SERVER_HOST: mysql-server
      DB_SERVER_PORT: 3306
      MYSQL_DATABASE: zabbix
      MYSQL_USER: root
      MYSQL_PASSWORD: 123123
      TZ: Asia/Shanghai
      ZBX_SERVER_HOST: 192.168.1.1
    depends_on:
      - mysql-server
      - zabbix-server
    restart: always
END
[root@Zabbix zabbix]# docker-compose up -d
[root@Zabbix zabbix]# docker-compose ps  

[root@Zabbix ~]# echo "UnsafeUserParameters=1" >> /etc/zabbix/zabbix_agentd.conf 

[root@Zabbix ~]# yum -y install nginx
[root@Zabbix ~]# cat <<END > /etc/nginx/conf.d/status.conf
server {
    listen 80;
    server_name 127.0.0.1;
    location /status {
        stub_status on;
        allow 127.0.0.1;
        allow 192.168.1.0/24;
        deny all;
    }
}
END

[root@Zabbix ~]# mkdir /etc/zabbix/scripts
[root@Zabbix ~]# vim /etc/zabbix/scripts/nginx_status.sh
#!/bin/bash
HOST="127.0.0.1"
PORT="80"
# 监控 Nginx 进程是否存在
function Ping {
    /sbin/pidof nginx | wc -l
}
# 监控 Nginx 状态信息
function Active {
    /usr/bin/curl "http://$HOST:$PORT/status" 2> /dev/null | grep "Active" | awk '{print $NF}'
}
function Reading {
    /usr/bin/curl "http://$HOST:$PORT/status" 2> /dev/null | grep "Reading" | awk '{print $2}'
}
function Writing {
    /usr/bin/curl "http://$HOST:$PORT/status" 2> /dev/null | grep "Writing" | awk '{print $4}'
}
function Waiting {
    /usr/bin/curl "http://$HOST:$PORT/status" 2> /dev/null | grep "Waiting" | awk '{print $6}'
}
function Server {
    /usr/bin/curl "http://$HOST:$PORT/status" 2> /dev/null | awk NR==3 | awk '{print $1}'
}
function Accepts {
    /usr/bin/curl "http://$HOST:$PORT/status" 2> /dev/null | awk NR==3 | awk '{print $2}'
}
function Requests {
    /usr/bin/curl "http://$HOST:$PORT/status" 2> /dev/null | awk NR==3 | awk '{print $3}'
}
# 执行 function
$1
[root@Zabbix ~]# chmod +x /etc/zabbix/scripts/nginx_status.sh

[root@Zabbix ~]# cat <<"END" > /etc/zabbix/zabbix_agentd.d/nginx_status.conf
UserParameter=nginx.status[*],/etc/zabbix/scripts/nginx_status.sh $1
END
[root@Zabbix ~]# systemctl restart zabbix-agent

[root@Zabbix ~]# docker exec -it zabbix-zabbix-server-1 /bin/bash