利用系统错误日志监控磁盘健康状况
一、故障现象
这个星期出现了两块磁盘不能读写，后面通过系统日志查看，关键字“EXT4-fs error对应某个磁盘”，因此利用zabbix，把系统日志抓取出来，作告警！
二、步聚
1.机器太多，用到ansible的playbook，进行一次性推送
2.定义key值,在/etc/zabbix/zabbix_agentd.conf.d/agentd.conf
###kernel_error of disk from /var/log/messsage
UserParameter=disk_health,awk -v kernel_error=`sudo tail /var/log/messages | grep "EXT4-fs error" | wc -l` 'BEGIN{if(kernel_erro > 0){print 1} else {print 0}}'
3.zabbix用户的sudo权限
vim /etc/sudoers.d/zabbix zabbix ALL=(root) NOPASSWD:/bin/bash,/bin/netstat,/usr/bin/nmap,/bin/grep,/bin/awk,/usr/local/mysql/bin/mysql,/usr/bin/tail,/bin/cat
playbook
---
- hosts: "`hosts`"
gather_facts: false
tasks:
- name: Add include path
lineinfile:
dest: "{{ item.dest }}"
regexp: "{{ item.regexp }}"
line: "{{ item.line }}"
with_items:
- {
dest: "/etc/zabbix/zabbix_agentd.conf",
regexp: "^Include",
line: "\n\n###Add include\nInclude=/etc/zabbix/zabbix_agentd.conf.d/*.conf" }
- {
dest: "/etc/sudoers",
regexp: "^Defaults requiretty",
line: " #Defaults requiretty" }
- name: Copy configuration file
copy:
src: "{{ item.src }}"
dest: "{{ item.dest }}"
with_items:
- {
src: "/etc/sudoers.d/zabbix",
dest: "/etc/sudoers.d/" }
- {
src: "/etc/zabbix/zabbix_agentd.conf.d/agentd.conf",
dest: "/etc/zabbix/zabbix_agentd.conf.d/" }
- name: Rresart zabbix service
service: name=zabbix_agentd state=restarted
4、执行
ansible-playbook copyfile.yml -e "hosts=all"
转载于:https://blog.51cto.com/zouqingyun/1740998