一、zabbix 自动发现并监控redis多实例
1.1 编写脚本
1.1.1 redis_low_discovery.sh
用于发现redis多实例
[root@redis02 homed]# cat /usr/local/zabbix/redis_low_discovery.sh
#!/bin/bash
# line: V1.0
# mail: [email protected]
# data: 2018-08-06
# script_name: redis_low_discovery.sh
# Fucation: redis low-level discovery
redis() {
port=($(sudo netstat -tpln | awk -F "[ :]+" '/redis-serv*/ && /0.0.0.0/ {print $5}'))
printf '{\n'
printf '\t"data":[\n'
for key in ${!port[@]}
do
if [[ "${#port[@]}" -gt 1 && "${key}" -ne "$((${#port[@]}-1))" ]];then
socket=`ps aux|grep ${port[${key}]}|grep -v grep|awk -F '=' '{print $10}'|cut -d ' ' -f 1`
printf '\t {\n'
printf "\t\t\t\"{#REDISPORT}\":\"${port[${key}]}\"},\n"
else [[ "${key}" -eq "((${#port[@]}-1))" ]]
socket=`ps aux|grep ${port[${key}]}|grep -v grep|awk -F '=' '{print $10}'|cut -d ' ' -f 1`
printf '\t {\n'
printf "\t\t\t\"{#REDISPORT}\":\"${port[${key}]}\"}\n"
fi
done
printf '\t ]\n'
printf '}\n'
}
sentinel() {
port=($(sudo netstat -tpln | awk -F "[ :]+" '/redis-sent*/ && /0.0.0.0/ {print $5}'))
printf '{\n'
printf '\t"data":[\n'
for key in ${!port[@]}
do
if [[ "${#port[@]}" -gt 1 && "${key}" -ne "$((${#port[@]}-1))" ]];then
socket=`ps aux|grep ${port[${key}]}|grep -v grep|awk -F '=' '{print $10}'|cut -d ' ' -f 1`
printf '\t {\n'
printf "\t\t\t\"{#REDISPORT}\":\"${port[${key}]}\"},\n"
else [[ "${key}" -eq "((${#port[@]}-1))" ]]
socket=`ps aux|grep ${port[${key}]}|grep -v grep|awk -F '=' '{print $10}'|cut -d ' ' -f 1`
printf '\t {\n'
printf "\t\t\t\"{#REDISPORT}\":\"${port[${key}]}\"}\n"
fi
done
printf '\t ]\n'
printf '}\n'
}
$1
[root@redis02 homed]# 1.1.2 redis_get_values.sh
用于获取redis值
[root@redis02 ~]# vim /usr/local/zabbix/redis_get_values.sh
#!/bin/sh
# line: V1.0
# mail: [email protected]
# data: 2018-08-06
# script_name: redis_get_values.sh
REDIS_CLI=/homed/redis/bin/redis-cli.exe
while getopts "p:k:P:" opt
do
case $opt in
p ) redis_port=$OPTARG;;
k ) redis_info_key=$OPTARG;;
P ) redis_passwd=$OPTARG;;
? )
echo '参数错误!'
exit 1;;
esac
done
#判断redis端口和info健值是否存在
if [ ! "${redis_port}" ] || [ ! "${redis_info_key}" ];then
echo "参数不存在"
exit 1
fi
function chk_result_status()
{
#判断result值是否存在
if [ ! "$result" ] ;then
echo 0
else
echo $result
fi
}
##判断是否使用密码远程登陆
if [ "${redis_passwd}" ];then
REDIS_COMM="${REDIS_CLI} -a ${redis_passwd} -p ${redis_port} info"
else
REDIS_COMM="${REDIS_CLI} -p ${redis_port} info"
fi
function get_values()
{
if [ "master_link_status" == "${redis_info_key}" ];then
result=`$REDIS_COMM|/bin/grep -w "master_link_status"|awk -F':' '{print $2}'|/bin/grep -c up`
chk_result_status
elif [ "role" == "${redis_info_key}" ];then
result=`$REDIS_COMM|/bin/grep -w "role"|awk -F':' '{print $2}'|/bin/grep -c master`
chk_result_status
elif [ "rdb_last_bgsave_status" == "${redis_info_key}" ];then
result=`$REDIS_COMM|/bin/grep -w "rdb_last_bgsave_status" | awk -F':' '{print $2}' | /bin/grep -c ok`
chk_result_status
elif [ "aof_last_bgrewrite_status" == "${redis_info_key}" ];then
result=`$REDIS_COMM|/bin/grep -w "aof_last_bgrewrite_status" | awk -F':' '{print $2}' | /bin/grep -c ok`
chk_result_status
elif [ `echo "${redis_info_key}" |egrep -cw 'dict_keys|dict_expires|intdict_keysi|intdict_expires|sentinel_status|sentinel_slaves|sentinel_nums'` == "1" ];then
#cn=`echo "${redis_info_key}" |awk -F "," '{print $2}'`
cn=`echo "${redis_info_key}"`
case $cn in
dict_keys)
result=`$REDIS_COMM| /bin/grep -w "db0"|/bin/grep -w "dict"|/bin/grep -w "keys" | awk -F'=|,' '{print $3}'`
chk_result_status
;;
dict_expires)
result=`$REDIS_COMM| /bin/grep -w "db0"|/bin/grep -w "dict"|/bin/grep -w "expires" | awk -F'=|,' '{print $5}'`
chk_result_status
;;
intdict_keys)
result=`$REDIS_COMM|/bin/grep -w "db0"|/bin/grep -w "intdict" |/bin/grep -w "keys" | awk -F'=|,' '{print $3}'`
chk_result_status
;;
intdict_expires)
result=`$REDIS_COMM|/bin/grep -w "db0"|/bin/grep -w "intdict" |/bin/grep -w "expites" | awk -F'=|,' '{print $5}'`
chk_result_status
;;
sentinel_status)
result=`$REDIS_COMM|/bin/grep -w "master0"|awk -F'=|,' '{print $4}'| /bin/grep -c ok`
chk_result_status
;;
sentinel_slaves)
result=`$REDIS_COMM|/bin/grep -w "master0"|awk -F'=|,' '{print $8}'`
chk_result_status
;;
sentinel_nums)
result=`$REDIS_COMM|/bin/grep -w "master0"|awk -F'=|,' '{print $10}'`
chk_result_status
;;
esac
else
result=`$REDIS_COMM|/bin/grep -w "${redis_info_key}"|cut -d: -f2`
chk_result_status
fi
}
get_values
二、授权zabbix使用netstat
允许 zabbix 用户无密码运行 netstat 及 Disable requiretty
[root@redis02 homed]# echo "zabbix ALL=(root) NOPASSWD:/bin/netstat">>/etc/sudoers
[root@redis02 homed]# sed -i 's/^Defaults.*.requiretty/#Defaults requiretty/' /etc/sudoers三、配置zabbix UserParameter
修改/etc/zabbix/zabbix_agentd.conf
[root@redis02 homed]# grep -Ev "^$|^#" /etc/zabbix/zabbix_agentd.conf
PidFile=/var/run/zabbix/zabbix_agentd.pid
LogFile=/var/log/zabbix/zabbix_agentd.log
LogFileSize=0
Server=192.168.49.245
ServerActive=127.0.0.1
Hostname=Zabbix server
Include=/etc/zabbix/zabbix_agentd.d/*.conf
#添加以下内容
UnsafeUserParameters=1
UserParameter=redis_discovery[*],/bin/bash /usr/local/zabbix/redis_low_discovery.sh $1
UserParameter=redis_items[*],/bin/bash /usr/local/zabbix/redis_get_values.sh -p $1 -k $2
UserParameter=sentinel_items[*],/bin/bash /usr/local/zabbix/redis_get_values.sh -p $1 -k $2四、重启agent并尝试获取值
重启zabbix-agent
[root@redis02 homed]# systemctl restart zabbix-agent.service
[root@redis02 homed]# systemctl status zabbix-agent.servicezabbix server主机上用zabbix_get 获取值
[root@node01 /]# zabbix_get -s 192.168.49.252 -k redis_discovery[redis]
{
"data":[
{
"{#REDISPORT}":"17035"},
{
"{#REDISPORT}":"6379"},
{
"{#REDISPORT}":"13135"},
{
"{#REDISPORT}":"7379"},
{
"{#REDISPORT}":"11835"},
{
"{#REDISPORT}":"12635"},
{
"{#REDISPORT}":"13635"}
]
}
[root@node01 /]# zabbix_get -s 192.168.49.252 -k redis_discovery[sentinel]
{
"data":[
{
"{#REDISPORT}":"17034"},
{
"{#REDISPORT}":"13134"},
{
"{#REDISPORT}":"7378"},
{
"{#REDISPORT}":"11834"},
{
"{#REDISPORT}":"12634"},
{
"{#REDISPORT}":"13634"}
]
}
[root@node01 ~]# zabbix_get -s 192.168.49.252 -p 10050 -k redis_items[7379,role]
slave
[root@node01 ~]# zabbix_get -s 192.168.49.252 -p 10050 -k redis_items[7379,uptime_in_seconds]
173728
[root@node01 ~]# zabbix_get -s 192.168.49.252 -p 10050 -k sentinel_items[7378,sentinel_status]
0
[root@node01 ~]# zabbix_get -s 192.168.49.252 -p 10050 -k sentinel_items[7378,sentinel_nums]
1
五、导入模板
导入zbx_export_templates，并连接监控主机
图形展示
