Собираем статистику nginx в Zabbix
Постановка задачи
Есть сервер с установленным Nginx, надо собирать статистику сервера в Zabbix. Будем использовать стандартный функционал Nginx выдачи статистики чрез http + UserParameters в zabbix.
Выглядит это следующим образом:
Zabbix-сервер запрашивает у zabbix-агента пользовательский параметр, агент вызывает шелл-скрипт, который скачивает страничку статистики, парсит ее и выдает значения параметров.
Реализация
Настраиваем Nginx:
server {
listen 10061;
location /nginx_status {
stub_status on;
access_log off;
allow 127.0.0.1;
deny all;
}
}
Создаем скрипт /etc/zabbix/nginx-check.sh
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | #!/bin/bash ################################## # Zabbix monitoring script # # nginx: # - anything available via nginx stub-status module # ################################## # Contact: # vincent.viallet@gmail.com ################################## # ChangeLog: # 20100922 VV initial creation ################################## # Zabbix requested parameter ZBX_REQ_DATA="$1" ZBX_REQ_DATA_URL="$2" # Nginx defaults NGINX_STATUS_DEFAULT_URL="http://localhost:10061/nginx_status" WGET_BIN="/usr/bin/wget" # # Error handling: # - need to be displayable in Zabbix (avoid NOT_SUPPORTED) # - items need to be of type "float" (allow negative + float) # ERROR_NO_ACCESS_FILE="-0.9900" ERROR_NO_ACCESS="-0.9901" ERROR_WRONG_PARAM="-0.9902" ERROR_DATA="-0.9903" # either can not connect / bad host / bad port # Handle host and port if non-default if [ ! -z "$ZBX_REQ_DATA_URL" ]; then URL="$ZBX_REQ_DATA_URL" else URL="$NGINX_STATUS_DEFAULT_URL" fi # save the nginx stats in a variable for future parsing NGINX_STATS=$($WGET_BIN -q $URL -O - 2> /dev/null) # error during retrieve if [ $? -ne 0 -o -z "$NGINX_STATS" ]; then echo $ERROR_DATA exit 1 fi # # Extract data from nginx stats # case $ZBX_REQ_DATA in active_connections) echo "$NGINX_STATS" | head -1 | cut -f3 -d' ';; accepted_connections) echo "$NGINX_STATS" | grep -Ev '[a-zA-Z]' | cut -f2 -d' ';; handled_connections) echo "$NGINX_STATS" | grep -Ev '[a-zA-Z]' | cut -f3 -d' ';; handled_requests) echo "$NGINX_STATS" | grep -Ev '[a-zA-Z]' | cut -f4 -d' ';; reading) echo "$NGINX_STATS" | tail -1 | cut -f2 -d' ';; writing) echo "$NGINX_STATS" | tail -1 | cut -f4 -d' ';; waiting) echo "$NGINX_STATS" | tail -1 | cut -f6 -d' ';; *) echo $ERROR_WRONG_PARAM; exit 1;; esac exit 0 |
Даем этому скрипту права на запуск
chmod 755 /etc/zabbix/nginx-check.sh
Создаем конфигурационный файл для zabbix-agent /etc/zabbix/zabbix_agentd.d/nginx-params.conf :
UserParameter=nginx[*],/etc/zabbix/nginx-check.sh "$1" "$2"
Импортируем в zabbix темплейт nginx-template.xml:
<?xml version="1.0" encoding="UTF-8"?> <zabbix_export> <version>2.0</version> <date>2013-03-26T04:17:58Z</date> <groups> <group> <name>Templates</name> </group> </groups> <templates> <template> <template>Template_Nginx</template> <name>Template_Nginx</name> <groups> <group> <name>Templates</name> </group> </groups> <applications> <application> <name>Nginx</name> </application> </applications> <items> <item> <name>Nginx $1</name> <type>0</type> <snmp_community/> <multiplier>0</multiplier> <snmp_oid/> <key>nginx[waiting,{$NGINX_STATUS_URL}]</key> <delay>60</delay> <history>30</history> <trends>365</trends> <status>0</status> <value_type>0</value_type> <allowed_hosts/> <units/> <delta>0</delta> <snmpv3_securityname/> <snmpv3_securitylevel>0</snmpv3_securitylevel> <snmpv3_authpassphrase/> <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>Nginx</name> </application> </applications> <valuemap/> </item> <item> <name>Nginx $1</name> <type>0</type> <snmp_community/> <multiplier>0</multiplier> <snmp_oid/> <key>nginx[writing,{$NGINX_STATUS_URL}]</key> <delay>60</delay> <history>30</history> <trends>365</trends> <status>0</status> <value_type>0</value_type> <allowed_hosts/> <units/> <delta>0</delta> <snmpv3_securityname/> <snmpv3_securitylevel>0</snmpv3_securitylevel> <snmpv3_authpassphrase/> <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>Nginx</name> </application> </applications> <valuemap/> </item> <item> <name>Nginx $1</name> <type>0</type> <snmp_community/> <multiplier>0</multiplier> <snmp_oid/> <key>nginx[active_connections,{$NGINX_STATUS_URL}]</key> <delay>60</delay> <history>30</history> <trends>365</trends> <status>0</status> <value_type>0</value_type> <allowed_hosts/> <units/> <delta>0</delta> <snmpv3_securityname/> <snmpv3_securitylevel>0</snmpv3_securitylevel> <snmpv3_authpassphrase/> <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>Nginx</name> </application> </applications> <valuemap/> </item> <item> <name>Nginx $1</name> <type>0</type> <snmp_community/> <multiplier>0</multiplier> <snmp_oid/> <key>nginx[reading,{$NGINX_STATUS_URL}]</key> <delay>60</delay> <history>30</history> <trends>365</trends> <status>0</status> <value_type>0</value_type> <allowed_hosts/> <units/> <delta>0</delta> <snmpv3_securityname/> <snmpv3_securitylevel>0</snmpv3_securitylevel> <snmpv3_authpassphrase/> <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>Nginx</name> </application> </applications> <valuemap/> </item> <item> <name>Nginx $1/sec</name> <type>0</type> <snmp_community/> <multiplier>0</multiplier> <snmp_oid/> <key>nginx[handled_requests,{$NGINX_STATUS_URL}]</key> <delay>60</delay> <history>30</history> <trends>365</trends> <status>0</status> <value_type>0</value_type> <allowed_hosts/> <units/> <delta>1</delta> <snmpv3_securityname/> <snmpv3_securitylevel>0</snmpv3_securitylevel> <snmpv3_authpassphrase/> <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>Nginx</name> </application> </applications> <valuemap/> </item> <item> <name>Nginx $1/sec</name> <type>0</type> <snmp_community/> <multiplier>0</multiplier> <snmp_oid/> <key>nginx[accepted_connections,{$NGINX_STATUS_URL}]</key> <delay>60</delay> <history>30</history> <trends>365</trends> <status>0</status> <value_type>0</value_type> <allowed_hosts/> <units/> <delta>1</delta> <snmpv3_securityname/> <snmpv3_securitylevel>0</snmpv3_securitylevel> <snmpv3_authpassphrase/> <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>Nginx</name> </application> </applications> <valuemap/> </item> <item> <name>Nginx $1/sec</name> <type>0</type> <snmp_community/> <multiplier>0</multiplier> <snmp_oid/> <key>nginx[handled_connections,{$NGINX_STATUS_URL}]</key> <delay>60</delay> <history>30</history> <trends>365</trends> <status>0</status> <value_type>0</value_type> <allowed_hosts/> <units/> <delta>1</delta> <snmpv3_securityname/> <snmpv3_securitylevel>0</snmpv3_securitylevel> <snmpv3_authpassphrase/> <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>Nginx</name> </application> </applications> <valuemap/> </item> <item> <name>Number of $1 process</name> <type>0</type> <snmp_community>public</snmp_community> <multiplier>0</multiplier> <snmp_oid>interfaces.ifTable.ifEntry.ifInOctets.1</snmp_oid> <key>proc.num[nginx]</key> <delay>300</delay> <history>30</history> <trends>365</trends> <status>0</status> <value_type>3</value_type> <allowed_hosts/> <units/> <delta>0</delta> <snmpv3_securityname/> <snmpv3_securitylevel>0</snmpv3_securitylevel> <snmpv3_authpassphrase/> <snmpv3_privpassphrase/> <formula>1</formula> <delay_flex/> <params/> <ipmi_sensor/> <data_type>0</data_type> <authtype>0</authtype> <username/> <password/> <publickey/> <privatekey/> <port/> <description/> <inventory_link>0</inventory_link> <applications/> <valuemap/> </item> </items> <discovery_rules/> <macros> <macro> <macro>{$NGINX_STATUS_URL}</macro> <value>http://127.0.0.1:10061/nginx_status</value> </macro> </macros> <templates/> <screens/> </template> </templates> <triggers> <trigger> <expression>{Template_Nginx:proc.num[nginx].last(0)}=0</expression> <name>Nginx is not running on {HOSTNAME}</name> <url/> <status>0</status> <priority>4</priority> <description>Nginx is not running. It has been stopped / shutdown or has crashed. Check on the server for more details: - w / last - dmesg logs - /var/log/messages - nginx error logs</description> <type>0</type> <dependencies/> </trigger> </triggers> <graphs> <graph> <name>Nginx - Connections and Requests status</name> <width>900</width> <height>200</height> <yaxismin>0.0000</yaxismin> <yaxismax>100.0000</yaxismax> <show_work_period>0</show_work_period> <show_triggers>0</show_triggers> <type>0</type> <show_legend>1</show_legend> <show_3d>0</show_3d> <percent_left>0.0000</percent_left> <percent_right>0.0000</percent_right> <ymin_type_1>1</ymin_type_1> <ymax_type_1>0</ymax_type_1> <ymin_item_1>0</ymin_item_1> <ymax_item_1>0</ymax_item_1> <graph_items> <graph_item> <sortorder>0</sortorder> <drawtype>1</drawtype> <color>FF9999</color> <yaxisside>0</yaxisside> <calc_fnc>4</calc_fnc> <type>0</type> <item> <host>Template_Nginx</host> <key>nginx[accepted_connections,{$NGINX_STATUS_URL}]</key> </item> </graph_item> <graph_item> <sortorder>1</sortorder> <drawtype>2</drawtype> <color>990000</color> <yaxisside>0</yaxisside> <calc_fnc>4</calc_fnc> <type>0</type> <item> <host>Template_Nginx</host> <key>nginx[handled_connections,{$NGINX_STATUS_URL}]</key> </item> </graph_item> <graph_item> <sortorder>2</sortorder> <drawtype>0</drawtype> <color>009900</color> <yaxisside>0</yaxisside> <calc_fnc>4</calc_fnc> <type>0</type> <item> <host>Template_Nginx</host> <key>nginx[handled_requests,{$NGINX_STATUS_URL}]</key> </item> </graph_item> </graph_items> </graph> <graph> <name>Nginx - Threads status</name> <width>900</width> <height>200</height> <yaxismin>0.0000</yaxismin> <yaxismax>100.0000</yaxismax> <show_work_period>0</show_work_period> <show_triggers>0</show_triggers> <type>1</type> <show_legend>1</show_legend> <show_3d>0</show_3d> <percent_left>0.0000</percent_left> <percent_right>0.0000</percent_right> <ymin_type_1>1</ymin_type_1> <ymax_type_1>0</ymax_type_1> <ymin_item_1>0</ymin_item_1> <ymax_item_1>0</ymax_item_1> <graph_items> <graph_item> <sortorder>0</sortorder> <drawtype>1</drawtype> <color>990000</color> <yaxisside>0</yaxisside> <calc_fnc>4</calc_fnc> <type>0</type> <item> <host>Template_Nginx</host> <key>nginx[writing,{$NGINX_STATUS_URL}]</key> </item> </graph_item> <graph_item> <sortorder>1</sortorder> <drawtype>1</drawtype> <color>999900</color> <yaxisside>0</yaxisside> <calc_fnc>4</calc_fnc> <type>0</type> <item> <host>Template_Nginx</host> <key>nginx[reading,{$NGINX_STATUS_URL}]</key> </item> </graph_item> <graph_item> <sortorder>2</sortorder> <drawtype>1</drawtype> <color>009900</color> <yaxisside>0</yaxisside> <calc_fnc>4</calc_fnc> <type>0</type> <item> <host>Template_Nginx</host> <key>nginx[waiting,{$NGINX_STATUS_URL}]</key> </item> </graph_item> </graph_items> </graph> </graphs> </zabbix_export>
Это собственно все. Далее в web-интерфейск zabbix подключаем к узлу темплейт “Template_Nginx” и вуаля!