场景
根据领导要求需要去配置zabbix去监控docker容器,在网上找了很多文章,最后进了这个坑https://www.cnblogs.com/binglansky/p/9132714.html,最后验证这位老哥这个办法是可以的,只不过中间一些配置的细节没有描述太清楚,怪我才疏学浅找了各种文档,试了很多办法,最终搞定这个监控,在这里做下记录,希望能帮到和我一样的初学者。
第一步 配置zabbix-agent
首选,修改zabbix_agentd 配置
#zabbix_agent节点的配置文件,不同部署方法位置可能不太相同
vim /usr/local/zabbix/etc/zabbix_agentd.conf
添加如下两行
#自定义监控项
#这个docker.py脚本需要拥有执行权限,存放位置自定义
UserParameter=docker.discovery,/usr/local/zabbix/script/docker.py
UserParameter=docker.[*],/usr/local/zabbix/script/docker.py $1 $2
说明:
- docker.[*] 这个是key,可以自定义,server端的模板会用到,[*] 接收模板传过来的参数
- docker.py 是用来采集数据的脚本
- $1对应[∗]server端传过来的参数第一个参数,$2对应[∗]server端传过来的参数第二个参数,例如server端传的是 mysql ping,对应为docker.py mysql ping (类似shell中的位置变量)
下面是docker.py 脚本,采用自动发现规则来发现容器,然后指定容器获取状态信息
#!/usr/bin/python
import sys
import os
import json
def discover():
d = {}
d['data'] = []
with os.popen("docker ps -a --format {{.Names}}") as pipe:
for line in pipe:
info = {}
info['{#CONTAINERNAME}'] = line.replace("\n","")
d['data'].append(info)
print json.dumps(d)
def status(name,action):
if action == "ping":
cmd = 'docker inspect --format="{{.State.Running}}" %s' %name
result = os.popen(cmd).read().replace("\n","")
if result == "true":
print 1
else:
print 0
else:
cmd = 'docker stats %s --no-stream --format "{{.%s}}"' % (name,action)
result = os.popen(cmd).read().replace("\n","")
if "%" in result:
print float(result.replace("%",""))
else:
print result
if __name__ == '__main__':
try:
name, action = sys.argv[1], sys.argv[2]
status(name,action)
except IndexError:
discover()
注意:
- 我是使用python2版本去执行的此脚本,不知道python3是否支持
- 自动发现规则的坑:1 是必须返回json格式内容,2. 是 info['{#CONTAINERNAME}' ] 这个key一定要这么写{#CONTAINERNAME}
在机器上试试执行下
#python docker.py
返回结果如下,一定要是这样的层级关系...
{"data": [{"{#CONTAINERNAME}": "node-3"}, {"{#CONTAINERNAME}": "node-2"}, {"{#CONTAINERNAME}": "node-1"}, {"{#CONTAINERNAME}": "web"}, {"{#CONTAINERNAME}": "cadvisor"}, {"{#CONTAINERNAME}": "updatol"}, {"{#CONTAINERNAME}": "research"}, {"{#CONTAINERNAME}": "services"}, {"{#CONTAINERNAME}": "data"}, {"{#CONTAINERNAME}": "rabbitmq"}, {"{#CONTAINERNAME}": "redis"}, {"{#CONTAINERNAME}": "mysql"}, {"{#CONTAINERNAME}": "ssdb"}]}
配置好后最好重启下zabbix_agent节点
可以在先使用zabbix-get命令验证下
第二步 导入模板
把下面这个代码保存到 zbx_export_templates.xml
<?xml version="1.0" encoding="UTF-8"?>
<zabbix_export>
<version>3.2</version>
<date>2018-06-04T04:12:36Z</date>
<groups>
<group>
<name>Templates</name>
</group>
</groups>
<templates>
<template>
<template>docker-status</template>
<name>docker-status</name>
<description/>
<groups>
<group>
<name>Templates</name>
</group>
</groups>
<applications>
<application>
<name>docker_test</name>
</application>
</applications>
<items/>
<discovery_rules>
<discovery_rule>
<name>docker.discovery</name>
<type>0</type>
<snmp_community/>
<snmp_oid/>
<key>docker.discovery</key>
<delay>60</delay>
<status>0</status>
<allowed_hosts/>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<delay_flex/>
<params/>
<ipmi_sensor/>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<filter>
<evaltype>0</evaltype>
<formula/>
<conditions>
<condition>
<macro>{#CONTAINERNAME}</macro>
<value>@ CONTAINER NAME</value>
<operator>8</operator>
<formulaid>A</formulaid>
</condition>
</conditions>
</filter>
<lifetime>30</lifetime>
<description/>
<item_prototypes>
<item_prototype>
<name>Container {#CONTAINERNAME} Diskio usage:</name>
<type>0</type>
<snmp_community/>
<multiplier>0</multiplier>
<snmp_oid/>
<key>docker.[{#CONTAINERNAME} ,BlockIO]</key>
<delay>60</delay>
<history>90</history>
<trends>0</trends>
<status>0</status>
<value_type>1</value_type>
<allowed_hosts/>
<units/>
<delta>0</delta>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<formula>1</formula>
<delay_flex/>
<params/>
<ipmi_sensor/>
<data_type>0</data_type>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<description/>
<inventory_link>0</inventory_link>
<applications>
<application>
<name>docker_test</name>
</application>
</applications>
<valuemap/>
<logtimefmt/>
<application_prototypes/>
</item_prototype>
<item_prototype>
<name>Container{#CONTAINERNAME} CPU usage:</name>
<type>0</type>
<snmp_community/>
<multiplier>0</multiplier>
<snmp_oid/>
<key>docker.[{#CONTAINERNAME},CPUPerc]</key>
<delay>60</delay>
<history>90</history>
<trends>365</trends>
<status>0</status>
<value_type>0</value_type>
<allowed_hosts/>
<units>%</units>
<delta>0</delta>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<formula>1</formula>
<delay_flex/>
<params/>
<ipmi_sensor/>
<data_type>0</data_type>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<description/>
<inventory_link>0</inventory_link>
<applications>
<application>
<name>docker_test</name>
</application>
</applications>
<valuemap/>
<logtimefmt/>
<application_prototypes/>
</item_prototype>
<item_prototype>
<name>Container {#CONTAINERNAME} mem usage:</name>
<type>0</type>
<snmp_community/>
<multiplier>0</multiplier>
<snmp_oid/>
<key>docker.[{#CONTAINERNAME},MemPerc]</key>
<delay>60</delay>
<history>90</history>
<trends>365</trends>
<status>0</status>
<value_type>0</value_type>
<allowed_hosts/>
<units>%</units>
<delta>0</delta>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<formula>1</formula>
<delay_flex/>
<params/>
<ipmi_sensor/>
<data_type>0</data_type>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<description/>
<inventory_link>0</inventory_link>
<applications>
<application>
<name>docker_test</name>
</application>
</applications>
<valuemap/>
<logtimefmt/>
<application_prototypes/>
</item_prototype>
<item_prototype>
<name>Container {#CONTAINERNAME} NETio usage:</name>
<type>0</type>
<snmp_community/>
<multiplier>0</multiplier>
<snmp_oid/>
<key>docker.[{#CONTAINERNAME},NetIO]</key>
<delay>60</delay>
<history>90</history>
<trends>0</trends>
<status>0</status>
<value_type>1</value_type>
<allowed_hosts/>
<units/>
<delta>0</delta>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<formula>1</formula>
<delay_flex/>
<params/>
<ipmi_sensor/>
<data_type>0</data_type>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<description/>
<inventory_link>0</inventory_link>
<applications>
<application>
<name>docker_test</name>
</application>
</applications>
<valuemap/>
<logtimefmt/>
<application_prototypes/>
</item_prototype>
<item_prototype>
<name>Container{#CONTAINERNAME} is_run :</name>
<type>0</type>
<snmp_community/>
<multiplier>0</multiplier>
<snmp_oid/>
<key>docker.[{#CONTAINERNAME} ,ping]</key>
<delay>30</delay>
<history>90</history>
<trends>365</trends>
<status>0</status>
<value_type>3</value_type>
<allowed_hosts/>
<units/>
<delta>0</delta>
<snmpv3_contextname/>
<snmpv3_securityname/>
<snmpv3_securitylevel>0</snmpv3_securitylevel>
<snmpv3_authprotocol>0</snmpv3_authprotocol>
<snmpv3_authpassphrase/>
<snmpv3_privprotocol>0</snmpv3_privprotocol>
<snmpv3_privpassphrase/>
<formula>1</formula>
<delay_flex/>
<params/>
<ipmi_sensor/>
<data_type>0</data_type>
<authtype>0</authtype>
<username/>
<password/>
<publickey/>
<privatekey/>
<port/>
<description/>
<inventory_link>0</inventory_link>
<applications>
<application>
<name>docker_test</name>
</application>
</applications>
<valuemap/>
<logtimefmt/>
<application_prototypes/>
</item_prototype>
</item_prototypes>
<trigger_prototypes>
<trigger_prototype>
<expression>{docker-status:docker.[{#CONTAINERNAME} ,ping].last()}=0</expression>
<recovery_mode>0</recovery_mode>
<recovery_expression/>
<name>docker_{#CONTAINERNAME}_down</name>
<correlation_mode>0</correlation_mode>
<correlation_tag/>
<url/>
<status>0</status>
<priority>5</priority>
<description/>
<type>0</type>
<manual_close>0</manual_close>
<dependencies/>
<tags/>
</trigger_prototype>
</trigger_prototypes>
<graph_prototypes/>
<host_prototypes/>
</discovery_rule>
</discovery_rules>
<httptests/>
<macros/>
<templates/>
<screens/>
</template>
</templates>
</zabbix_export>
在web界面导入模板
导入以后他会默认生成自动发现规则和监控项原型
在这里需要注意一点,也是折磨我最久的一点,就是这个自动发现规则并不会启用,是不支持状态,如图
这是因为里面配置的过滤器中的正则表达式错误造成的
解决办法:
就是去掉这个过滤器
然后等待这个自动发现规则启动了,去查看是否生成最新数据
以上就配置好了,zabbix监控docker容器
最后再总结下配置步骤
1. 修改zabbix_agent节点的配置
2. 创建docker.py文件,并添加执行劝降
3. 导入模板,删除过滤器中的正则表达式
4. 查看最新数据,确认是否生效
配置时可以zabbix_get 来调试 找到问题出在哪去然后去解决
大佬链接: