docker搭建zabbix监控

Posted 2020-11-09

1、创建目录

[[email protected] script]# mkdir /usr/local/zabbix/etc/script

2、编辑容器发现脚本
[[email protected] script]# vim docker_discovery.py
#!/usr/bin/env python
import os
import simplejson as json
t=os.popen("""sudo docker ps |grep -v ‘CONTAINER ID‘|awk {‘print $NF‘} """)
container_name = []
for container in t.readlines():
r = os.path.basename(container.strip())
container_name += [{‘{#CONTAINERNAME}‘:r}]
print json.dumps({‘data‘:container_name},sort_keys=True,indent=4,separators=(‘,‘,‘:‘))

3、安装环境并测试自动发现
pip install docker
pip install simplejson
chmod 757 docker_discovery.py
chown zabbix:zabbix /usr/local/zabbix/etc/script -R

赋予zabbix权限，编辑/etc/sudoers,添加如下内容
    zabbix  ALL=(root)    NOPASSWD:/usr/bin/docker,/usr/bin/python,/usr/local/zabbix/etc/script/docker_discovery.py 

配置文件添加配置并重启：
    vim /usr/local/zabbix/etc/zabbix_agentd.conf
    UserParameter=docker_discovery,sudo /usr/bin/python /usr/local/zabbix/etc/script/docker_discovery.py

测试：
     zabbix_get -s 192.168.199.133 -k docker_discovery 

4、添加容器监控测试
[[email protected] script]# vim docker_monitor.py
#!/usr/bin/env python
import docker
import sys
import subprocess
import os

def check_container_stats(container_name,collect_item):
    #docker_client = docker_client.containers.get(container_name)
    container_collect=docker_client.containers.get(container_name).stats(stream=True)
    old_result=eval(container_collect.next())
    new_result=eval(container_collect.next())
    container_collect.close()
    if collect_item == ‘cpu_total_usage‘:
        result=new_result[‘cpu_stats‘][‘cpu_usage‘][‘total_usage‘] - old_result[‘cpu_stats‘][‘cpu_usage‘][‘total_usage‘]
    elif collect_item == ‘cpu_system_usage‘:
        result=new_result[‘cpu_stats‘][‘system_cpu_usage‘] - old_result[‘cpu_stats‘][‘system_cpu_usage‘]
    elif collect_item == ‘cpu_percent‘:
        cpu_total_usage=new_result[‘cpu_stats‘][‘cpu_usage‘][‘total_usage‘] - old_result[‘cpu_stats‘][‘cpu_usage‘][‘total_usage‘]
        cpu_system_uasge=new_result[‘cpu_stats‘][‘system_cpu_usage‘] - old_result[‘cpu_stats‘][‘system_cpu_usage‘]
        cpu_num=len(old_result[‘cpu_stats‘][‘cpu_usage‘][‘percpu_usage‘])
        result=round((float(cpu_total_usage)/float(cpu_system_uasge))*cpu_num*100.0,2)
    elif collect_item == ‘mem_usage‘:
        result=new_result[‘memory_stats‘][‘usage‘]
    elif collect_item == ‘mem_limit‘:
        result=new_result[‘memory_stats‘][‘limit‘]
    elif collect_item == ‘network_rx_bytes‘:
        result=new_result[‘networks‘][‘eth0‘][‘rx_bytes‘]
    elif collect_item == ‘network_tx_bytes‘:
        result=new_result[‘networks‘][‘eth0‘][‘tx_bytes‘]
    elif collect_item == ‘mem_percent‘:
        mem_usage=new_result[‘memory_stats‘][‘usage‘]
        mem_limit=new_result[‘memory_stats‘][‘limit‘]
        result=round(float(mem_usage)/float(mem_limit)*100.0,2)
    return result
if __name__ == "__main__":
    docker_client = docker.DockerClient(base_url=‘unix://var/run/docker.sock‘, version=‘1.27‘)
    container_name=sys.argv[1]
    collect_item=sys.argv[2]
    print check_container_stats(container_name,collect_item)

[[email protected] script]# chmod 757  docker_monitor.py 
编辑配置文件并重启：vim /usr/local/zabbix/etc/zabbix_agentd.conf
UserParameter=docker_status[*],sudo /usr/bin/python /usr/local/zabbix/etc/script/docker_monitor.py $1 $2

测试：zabbix_get -s 192.168.199.133 -k docker_status[mysql-sonar,cpu_total_usage]

5、web端制作模板
5.1、配置 -》模板 -》创建模板 （cpu_percent mem_percent mem_usage mem_limit）
Template name: Template Docker Auto Discovery

5.2、点击创建

5.3、找到创建的模板进去：点击自动发现

自动发现规则：
Name：collect docker container use resource
Type：Zabbix agent
Key：docker_discovery

过滤器：
{#CONTAINERNAME}

5.4、创建监控项原型

    Name：container:{#CONTAINERNAME}:cpu_percent
    Type：Zabbix agent
    Key：docker_status[{#CONTAINERNAME},cpu_percent]
    Type：Numeric (float)
    Units：%

    Name：container:{#CONTAINERNAME}:mem_percent
    Type：Zabbix agent
    Key：docker_status[{#CONTAINERNAME},mem_percent]
    Type：Numeric (float)
    Units：% 

    Name：container:{#CONTAINERNAME}:mem_usage
    Type：Zabbix agent
    Key：docker_status[{#CONTAINERNAME},mem_usage]
    Type：数字（无正负）
    Units：空

    Name：container:{#CONTAINERNAME}:mem_limit
    Type：Zabbix agent
    Key：docker_status[{#CONTAINERNAME},mem_limit]
    Type：数字（无正负）
    Units：空 

5.5、添加触发器

5.5、添加图形原型
Name：container:{#CONTAINERNAME}:cpu和内存使用率
监控项：

6、安装zabbix客户端

这里采用编译安装：
    添加用户
#groupadd zabbix
#useradd -g zabbix -m zabbix

#./configure --prefix=/usr/local/zabbix --enable-agent 
#make install

#vi /usr/local/zabbix/etc/zabbix_agentd.conf
Server= ip.ip.ip.ip         #服务端ip地址
ServerActive= ip.ip.ip.ip    #服务端ip地址
Hostname=client1             #必须与创建主机时的hostname一致

#cp zabbix-3.0.4/misc/init.d/tru64/zabbix_agentd /etc/init.d/
#chmod +x /etc/init.d/zabbix_ agentd
#ln -s /usr/local/zabbix/sbin/* /usr/local/sbin/
#ln -s /usr/local/zabbix/bin/* /usr/local/bin/

#vi /etc/rc.d/init.d/zabbix_ agentd
#在第二行添加如下内容
#chkconfig: 2345 10 90
#description: zabbix agent
保存后退出文件
#chkconfig --add zabbix_agentd
#chkconfig zabbix_agentd on
#service restart zabbix_ agentd