zabbix使用自动发现功能批量监控服务器端口的可用性

使用自动发现脚本批量监控服务器端口的可用性

1.编写自动发现脚本
# cat /usr/local/zabbix_agents_3.2.0/scripts/web_site_code_status.sh 
#!/bin/bash

UrlFile="/usr/local/zabbix_agents_3.2.0/scripts/WEB.txt"
IFS=$'\n'

web_site_discovery () {
    WEB_SITE=($(cat $UrlFile|grep -v "^#"))
    printf '{\n'
    printf '\t"data":[\n'
    num=${#WEB_SITE[@]}
    for site in ${WEB_SITE[@]}
    do
        num=$(( $num - 1 ))
        url=$(echo $site|awk '{print $1}')
        ip=$(echo $site|awk '{print $2}')
        if [ $num -ne 0 ] ; then
            printf "\t\t{\"{#SITENAME}\":\""%s"\",\"{#PROXYIP}\":\""${ip}"\"},\n" ${url}
        else
            printf "\t\t{\"{#SITENAME}\":\""%s"\",\"{#PROXYIP}\":\""${ip}"\"}\n" ${url}
            printf '\t]\n'
            printf '}\n'
        fi
    done
}

web_site_code () {
/usr/bin/nmap $1 -p 873 2>/dev/null | grep -c open
}

case "$1" in
    web_site_discovery)
        web_site_discovery
        ;;
    web_site_code)
        web_site_code $2
        ;;
    *)
        echo "Usage:$0 {web_site_discovery|web_site_code [URL]}"
        ;;
esac


2.需要监控的服务器列表
[root@cbs_logs_master:/usr/local/zabbix_agents_3.2.0/scripts]# cat WEB.txt 
ws_cbs_frontend_web01 1.1.1.1
ws_cbs_frontend_web02 1.1.1.2

# 监控选项
[root@cbs_logs_master:/usr/local/zabbix_agents_3.2.0/conf/zabbix_agentd]# more web_site_discovery.conf 
UserParameter=web.site.discovery,/usr/local/zabbix_agents_3.2.0/scripts/web_site_code_status.sh web_site_discovery
UserParameter=web.site.code[*],/usr/local/zabbix_agents_3.2.0/scripts/web_site_code_status.sh web_site_code $1

# 本机测试
# /usr/local/zabbix_agents_3.2.0/scripts/web_site_code_status.sh web_site_discovery
{
    "data":[
        {"{#SITENAME}":"ws_cbs_frontend_web01","{#PROXYIP}":"1.1.1.1"},
        {"{#SITENAME}":"ws_cbs_frontend_web02","{#PROXYIP}":"1.1.1.2"}
    ]
}


[root@cbs_logs_master:/usr/local/zabbix_agents_3.2.0/conf/zabbix_agentd]# /usr/local/zabbix_agents_3.2.0/scripts/web_site_code_status.sh web_site_code 1.1.1.1
1

# zabbix服务端测试
# zabbix_get -s 192.168.11.42 -k 'web.site.code[1.1.1.1]'
1

监控模板

<?xml version="1.0" encoding="UTF-8"?>
<zabbix_export>
    <version>3.4</version>
    <date>2019-11-08T12:33:05Z</date>
    <groups>
        <group>
            <name>Templates</name>
        </group>
    </groups>
    <templates>
        <template>
            <template>urls_monitor_port</template>
            <name>urls_monitor_port</name>
            <description/>
            <groups>
                <group>
                    <name>Templates</name>
                </group>
            </groups>
            <applications/>
            <items/>
            <discovery_rules>
                <discovery_rule>
                    <name>web.site.discovery</name>
                    <type>0</type>
                    <snmp_community/>
                    <snmp_oid/>
                    <key>web.site.discovery</key>
                    <delay>180;180/1-7,00:00-24:00</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/>
                    <params/>
                    <ipmi_sensor/>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <filter>
                        <evaltype>0</evaltype>
                        <formula/>
                        <conditions/>
                    </filter>
                    <lifetime>30d</lifetime>
                    <description/>
                    <item_prototypes>
                        <item_prototype>
                            <name>web.site.discovery</name>
                            <type>0</type>
                            <snmp_community/>
                            <snmp_oid/>
                            <key>web.site.code[{#PROXYIP},]</key>
                            <delay>30</delay>
                            <history>90d</history>
                            <trends>365d</trends>
                            <status>0</status>
                            <value_type>3</value_type>
                            <allowed_hosts/>
                            <units/>
                            <snmpv3_contextname/>
                            <snmpv3_securityname/>
                            <snmpv3_securitylevel>0</snmpv3_securitylevel>
                            <snmpv3_authprotocol>0</snmpv3_authprotocol>
                            <snmpv3_authpassphrase/>
                            <snmpv3_privprotocol>0</snmpv3_privprotocol>
                            <snmpv3_privpassphrase/>
                            <params/>
                            <ipmi_sensor/>
                            <authtype>0</authtype>
                            <username/>
                            <password/>
                            <publickey/>
                            <privatekey/>
                            <port/>
                            <description/>
                            <inventory_link>0</inventory_link>
                            <applications/>
                            <valuemap/>
                            <logtimefmt/>
                            <preprocessing/>
                            <jmx_endpoint/>
                            <application_prototypes/>
                            <master_item_prototype/>
                        </item_prototype>
                    </item_prototypes>
                    <trigger_prototypes>
                        <trigger_prototype>
                            <expression>{urls_monitor_port:web.site.code[{#PROXYIP},].last(0)}&lt;&gt;1 and {urls_monitor_port:web.site.code[{#PROXYIP},].last(1)}&lt;&gt;1</expression>
                            <recovery_mode>0</recovery_mode>
                            <recovery_expression/>
                            <name>web.site.code {#SITENAME} port 873 is not open</name>
                            <correlation_mode>0</correlation_mode>
                            <correlation_tag/>
                            <url/>
                            <status>0</status>
                            <priority>0</priority>
                            <description/>
                            <type>0</type>
                            <manual_close>0</manual_close>
                            <dependencies/>
                            <tags/>
                        </trigger_prototype>
                    </trigger_prototypes>
                    <graph_prototypes/>
                    <host_prototypes/>
                    <jmx_endpoint/>
                </discovery_rule>
            </discovery_rules>
            <httptests/>
            <macros/>
            <templates/>
            <screens/>
        </template>
    </templates>
</zabbix_export>

 

同时监控多个端口的场景

 

需求：
客户端要访问mongodb获取数据，从mongodb内部监控这些端口不客观，直接在api服务器中判断端口的可用性更佳
需要监控的端口有：
20000
21000
27001
27002
27003

注意：

自动发现最终触发器中出现的参数必须在一个自动发现的过程中展示出来，否则不可用

如下示例中的  服务器名、服务器ip和服务器端口都同时定义在一个自动发现任务中

1.机器和端口列表
服务器名称(方便报警显示名称)    服务器ip    服务器端口
eus-image-design-mongo01    172.30.0.1    20000

# cat /usr/local/zabbix_agents/scripts/server_ips.txt

eus-image-design-mongo01 172.30.0.1 20000
eus-image-design-mongo01 172.30.0.1 21000
eus-image-design-mongo01 172.30.0.1 27001
eus-image-design-mongo01 172.30.0.1 27002
eus-image-design-mongo01 172.30.0.1 27003
eus-image-design-mongo02 172.30.0.18 20000
eus-image-design-mongo02 172.30.0.18 21000
eus-image-design-mongo02 172.30.0.18 27001
eus-image-design-mongo02 172.30.0.18 27002
eus-image-design-mongo02 172.30.0.18 27003

2.自动发现脚本
# cat /usr/local/zabbix_agents_3.2.0/scripts/server_code_status.sh

#!/bin/bash

UrlFile="/usr/local/zabbix_agents_3.2.0/scripts/server_ips.txt"
IFS=$'\n'


server_ip_discovery () {
    WEB_SITE=($(cat $UrlFile|grep -v "^#"))
    printf '{\n'
    printf '\t"data":[\n'
    num=${#WEB_SITE[@]}
    for site in ${WEB_SITE[@]}
    do
        num=$(( $num - 1 ))
        url=$(echo $site|awk '{print $1}')
        ip=$(echo $site|awk '{print $2}')
        port=$(echo $site|awk '{print $3}')
        if [ $num -ne 0 ] ; then
            printf "\t\t{\"{#SITENAME}\":\""%s"\",\"{#PROXYIP}\":\""${ip}"\",\"{#SERVERPORT}\":\""${port}"\"},\n" ${url}
        else
        # 要特别注意json的格式定义 { } 括号要对应得上
            printf "\t\t{\"{#SITENAME}\":\""%s"\",\"{#PROXYIP}\":\""${ip}"\",\"{#SERVERPORT}\":\""${port}"\"}\n" ${url}
            printf '\t]\n'
            printf '}\n'
        fi
    done
}

server_port_code () {

# 有时候 nmap会被主机阻止，此时可以使用nc命令进行替代
# /usr/bin/nc -zv $1 $2 2>/dev/null | grep -c "succeeded"

/usr/bin/nmap $1 -p $2 2>/dev/null | grep -c open

}

case "$1" in
    server_ip_discovery)
        server_ip_discovery
        ;;
    server_port_discovery)
        server_port_discovery
        ;;
    server_port_code)
        server_port_code $2 $3
        ;;
    *)
        echo "Usage:$0 {server_port_discovery|server_ip_discovery|server_port_code [URL]}"
        ;;
esac

 

3.监控项定义
# vim /usr/local/zabbix_agents_3.2.0/conf/zabbix_agentd/server_site_discovery.conf

UserParameter=server.ip.discovery,/usr/local/zabbix_agents_3.2.0/scripts/server_code_status.sh server_ip_discovery
UserParameter=server.port.code[*],/usr/local/zabbix_agents_3.2.0/scripts/server_code_status.sh server_port_code $1 $2

4.本机测试
# /usr/local/zabbix_agents_3.2.0/scripts/server_code_status.sh server_ip_discovery
{
    "data":[
        {"{#SITENAME}":"eus-image-design-mongo01","{#PROXYIP}":"172.30.0.1","{#SERVERPORT}":"20000"},
        {"{#SITENAME}":"eus-image-design-mongo01","{#PROXYIP}":"172.30.0.1","{#SERVERPORT}":"21000"},
        {"{#SITENAME}":"eus-image-design-mongo01","{#PROXYIP}":"172.30.0.1","{#SERVERPORT}":"27001"},
        {"{#SITENAME}":"eus-image-design-mongo01","{#PROXYIP}":"172.30.0.1","{#SERVERPORT}":"27002"},
        {"{#SITENAME}":"eus-image-design-mongo01","{#PROXYIP}":"172.30.0.1","{#SERVERPORT}":"27003"},
        {"{#SITENAME}":"eus-image-design-mongo02","{#PROXYIP}":"172.30.0.18","{#SERVERPORT}":"20000"},
        {"{#SITENAME}":"eus-image-design-mongo02","{#PROXYIP}":"172.30.0.18","{#SERVERPORT}":"21000"},
        {"{#SITENAME}":"eus-image-design-mongo02","{#PROXYIP}":"172.30.0.18","{#SERVERPORT}":"27001"},
        {"{#SITENAME}":"eus-image-design-mongo02","{#PROXYIP}":"172.30.0.18","{#SERVERPORT}":"27002"},
        {"{#SITENAME}":"eus-image-design-mongo02","{#PROXYIP}":"172.30.0.18","{#SERVERPORT}":"27003"},
    ]
}
# /usr/local/zabbix_agents_3.2.0/scripts/server_code_status.sh server_port_code 172.30.0.1 21000
1

 

zabbbix端的配置

key:
server.port.code[{#PROXYIP},{#SERVERPORT},]

trigger:
name:
server.port.code {#SITENAME} port {#SERVERPORT}] was down

{server_multi_port_monitor:server.port.code[{#PROXYIP},{#SERVERPORT},].count(#3,1,"eq")}=0

模板

<?xml version="1.0" encoding="UTF-8"?>
<zabbix_export>
    <version>3.2</version>
    <date>2020-09-29T09:22:54Z</date>
    <groups>
        <group>
            <name>Templates_ALL_Group-[EUS]</name>
        </group>
    </groups>
    <templates>
        <template>
            <template>server_multi_port_monitor</template>
            <name>server_multi_port_monitor</name>
            <description/>
            <groups>
                <group>
                    <name>Templates_ALL_Group-[EUS]</name>
                </group>
            </groups>
            <applications/>
            <items/>
            <discovery_rules>
                <discovery_rule>
                    <name>server.ip.discovery</name>
                    <type>0</type>
                    <snmp_community/>
                    <snmp_oid/>
                    <key>server.ip.discovery</key>
                    <delay>180</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/>
                    </filter>
                    <lifetime>30</lifetime>
                    <description/>
                    <item_prototypes>
                        <item_prototype>
                            <name>server.port.code</name>
                            <type>0</type>
                            <snmp_community/>
                            <multiplier>0</multiplier>
                            <snmp_oid/>
                            <key>server.port.code[{#PROXYIP},{#SERVERPORT},]</key>
                            <delay>180</delay>
                            <history>30</history>
                            <trends>90</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/>
                            <valuemap/>
                            <logtimefmt/>
                            <application_prototypes/>
                        </item_prototype>
                    </item_prototypes>
                    <trigger_prototypes>
                        <trigger_prototype>
                            <expression>{server_multi_port_monitor:server.port.code[{#PROXYIP},{#SERVERPORT},].count(#5,1,&quot;eq&quot;)}=0</expression>
                            <recovery_mode>0</recovery_mode>
                            <recovery_expression/>
                            <name>server.port.code {#SITENAME} port {#SERVERPORT}] was down</name>
                            <correlation_mode>0</correlation_mode>
                            <correlation_tag/>
                            <url/>
                            <status>0</status>
                            <priority>2</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>