前言：前段时间在部署zabbix，有个需求就是需要监控容器的状态 也就是cpu 内存 io的占用，于是就自己写了一个脚本，以及模板，在这里分享一下 嘿嘿 : )
废话我也就不多说，直接开始
首选，zabbix_agentd 配置 vim /usr/local/zabbix/etc/zabbix_agentd.conf
UserParameter=docker.discovery,/usr/local/zabbix/script/docker.py
UserParameter=docker.[*],/usr/local/zabbix/script/docker.py $1 $2
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()
这里说一下自动发现规则的坑。。。我被坑了好久才找出来.....一是必须返回json格式内容，二是 info['{#CONTAINERNAME}' ] 这个key一定要这么写{#CONTAINERNAME}......
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"}]}
另外那个函数的很简单了，就是调用docker 命令在获取数据的。
自动发现规则呢 也就是这样
只监控的这几个状态，以及还有一个触发器就是ping 来检测当前这个容器状态是否运行，如果不是就报警。
模板如下
<?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>
修改Zabbix_agentd 配置，docker.py脚本放在指定路径下，不要忘了给权限，导入模板，能获取数据就没问题。获取不了的，可以zabbix_get 来调试 找到问题出在哪去解决。
这样就没问题了。
好了，这次就先这样呗 有问题了 可以交流..... 技术有限 不要喷我。。。嘿嘿 : )