我们可以通过Python提供的模块docker来取各个docker容器的监控参数。参考文档：http://docker-py.readthedocs.io/en/stable/containers.html
pip install docker #安装docker模块
通过脚本获取各个监控项的值
#!coding=utf-8
#python2.7.12测试通过
#监控docker状态脚本，包括内存、cpu和网速
#UserParameter=docker_monitor[*],/usr/bin/python /usr/local/zabbix/scripts/docker_monitor.py $1 $2
import docker
import sys
def get_value(item):
mem_rss_usage = docker_stat[‘memory_stats‘][‘stats‘][‘total_rss‘]
mem_cache_usage = docker_stat[‘memory_stats‘][‘stats‘][‘total_cache‘]
mem_limit = docker_stat[‘memory_stats‘][‘limit‘]
cpu_total_usage = docker_stat[‘cpu_stats‘][‘cpu_usage‘][‘total_usage‘]
cpu_usermode_usage = docker_stat[‘cpu_stats‘][‘cpu_usage‘][‘usage_in_usermode‘]
cpu_kernelmode_usage = docker_stat[‘cpu_stats‘][‘cpu_usage‘][‘usage_in_kernelmode‘]
cpu_system_usage = docker_stat[‘cpu_stats‘][‘system_cpu_usage‘]
percpu_usage = docker_stat[‘cpu_stats‘][‘cpu_usage‘][‘percpu_usage‘]
# ‘cpu_percent‘: round(((float(cpu_total_usage)+float(cpu_usermode_usage)+float(cpu_kernelmode_usage))/float(cpu_system_usage)) * len(percpu_usage) * 1000.0, 2), 暂不确定
items = {
‘mem_rss_usage‘: mem_rss_usage,
‘mem_cache_usage‘: mem_cache_usage,
‘mem_limit‘: mem_limit,
‘cpu_total_usage‘: cpu_total_usage,
‘cpu_system_usage‘: cpu_system_usage,
‘mem_percent‘: round((float(mem_rss_usage)/float(mem_limit)) * 100.0, 2),
‘status‘: int( docker.status == ‘running‘)
}
print items.get(item)
if __name__ == ‘__main__‘:
conn = docker.from_env()
docker = conn.containers.get(sys.argv[1])
docker_stat = docker.stats(stream=False,decode=True)
get_value(sys.argv[2])
docker自动发现脚本：
#!/bin/bash
docker_amount() { port=($(sudo docker ps -a|grep -v "CONTAINER ID"|awk ‘{print $NF}‘)) printf ‘{\n‘ printf ‘\t"data":[\n‘ for key in ${!port[@]} do if [[ "${#port[@]}" -gt 1 && "${key}" -ne "$((${#port[@]}-1))" ]];then printf ‘\t {\n‘ printf "\t\t\t\"{#CONTAINERNAME}\":\"${port[${key}]}\"},\n" else [[ "${key}" -eq "((${#port[@]}-1))" ]] printf ‘\t {\n‘ printf "\t\t\t\"{#CONTAINERNAME}\":\"${port[${key}]}\"}\n" fi done printf ‘\t ]\n‘ printf ‘}\n‘ } case $1 in docker) docker_amount ;; *) echo "Usage:`basename $0` {docker}" ;; esac
UserParameter=auto_discovery[*],/bin/bash /usr/local/zabbix/scripts/auto_discovery.sh $1
如果在服务端执行zabbix_get时报权限错误，在/etc/sudoers中添加：
zabbix ALL=(root) NOPASSWD: /usr/bin/docker
然后在监控页添加自动发现、监控项即可。
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另可用简单的Load Modules的方式监控Docker(感谢万能的先行者....)
Git地址：https://github.com/monitoringartist/Zabbix-Docker-Monitoring
步骤如下：
1、在Git上下载相应版本的加载模块zabbix_module_docker.so和相应监控方式（主动和被动）监控模板Zabbix-Template-App-Docker.xml
2、将zabbix_module_docker.so放在${libdir}/modules下并修改配置文件：
LoadModulePath=/usr/local/zabbix/lib/modules
LoadModule=zabbix_module_docker.so
3、重启zabbix_agentd，并将Zabbix-Template-App-Docker.xml导入模板中，自动发现10分钟后取得数据
