Nagios with InfluxDB, nagflux and Grafana

This short document describes how to install InfluxDB, nagflux and Grafana on the Nagios XI appliance (CentOS release 6.8). No passwords are changed in this tutorial, access to the database is configured without password, make sure to change the passwords and restrict the access. # yum install golang-github-influxdb-influxdb-client golang-github-influxdb-influxdb-datastore git Get InfluxDB from https://influxdata.com/downloads/#influxdb # rpm -Uvh influxdb-0.13.0.x86_64.rpm # service influxdb start Install and configure nagflux # export GOPATH=$HOME/gorepo # mkdir $GOPATH # go get -v -u github.com/griesbacher/nagflux # go build github.com/griesbacher/nagflux # vi config.gcfg [main] NagiosSpoolfileFolder = "/usr/local/nagios/var/spool/nagfluxperfdata" NagiosSpoolfileWorker = 1 InfluxWorker = 2 MaxInfluxWorker = 5 DumpFile = "/usr/local/nagios/var/log/nagflux/nagflux.dump" NagfluxSpoolfileFolder = "/usr/local/nagios/var/nagflux" FieldSeparator = "&" BufferSize = 1000 [Log] #leave empty for stdout LogFile = "" #List of Severities https://godoc.org/github.com/kdar/factorlog#Severity MinSeverity = "INFO" # mkdir -p /usr/local/nagios/var/spool/nagfluxperfdata # chown nagios:nagios /usr/local/nagios/var/spool/nagfluxperfdata The scripts are necessary to write performance data to pnp4nagios and nagflux. # vi /usr/local/nagios/libexec/process-host-perfdata-file-bulk #!/bin/bash /bin/cp -p /usr/local/nagios/var/host-perfdata /usr/local/nagios/var/spool/nagfluxperfdata/${1}.perfdata.host /bin/mv /usr/local/nagios/var/host-perfdata /usr/local/nagios/var/spool/xidpe/${1}.perfdata.host # vi /usr/local/nagios/libexec/process-service-perfdata-file-bulk #!/bin/bash /bin/cp -p /usr/local/nagios/var/service-perfdata /usr/local/nagios/var/spool/nagfluxperfdata/${1}.perfdata.service /bin/mv /usr/local/nagios/var/service-perfdata /usr/local/nagios/var/spool/xidpe/${1}.perfdata.service # chown apache:nagios /usr/local/nagios/libexec/process-*-perfdata-file-bulk # chmod 755 /usr/local/nagios/libexec/process-*-perfdata-file-bulk Login to the web interface -> Core Config Manager -> Commands. Modify the command: process-host-perfdata-file-bulk /usr/local/nagios/libexec/process-host-perfdata-file-bulk $TIMET$ Modify the command: process-service-perfdata-file-bulk /usr/local/nagios/libexec/process-service-perfdata-file-bulk $TIMET$ => Apply Configuration After some seconds you should see files in "/usr/local/nagios/var/spool/nagfluxperfdata" (nagflux will remove the files from the directory). Start nagflux. Nagflux will not fork as a deamon, make sure to create a start script for it. # ./nagflux Download Grafana from http://grafana.org/download/ # rpm -Uvh grafana-3.0.4-1464167696.x86_64.rpm # chkconfig --add grafana-server # service grafana-server start Add a firewall rule to allow the access to port 3000, add the line before the REJECT rules # vi /etc/sysconfig/iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 3000 -j ACCEPT # service iptables restart Login to the web interface http://Nagios-Server:3000 User name and password: admin Menu -> Data Source -> Add Data Source Name: nagflux Type: InfluxDB Url: http://localhost:8086 Access: proxy Database: nagflux Go to Dashboards -> Home -> New Click the small icon on the left -> Add panel -> Graph Panel data source: nagflux Sample query: SELECT mean("value") AS "time-value", mean("warn") AS "time-warn", mean("warn-min") AS "time-warn-min", mean("warn-max") AS "time-warn-max", mean("crit") AS "time-crit", mean("crit-min") AS "time-crit-min", mean("crit-max") AS "time-crit-max" FROM "metrics" WHERE "host" = 'localhost' AND "service" = 'HTTP' AND "command" = 'check_http' AND "performanceLabel" = 'time' AND $timeFilter GROUP BY time($interval) fill(null) Alias by $col Update 20th March 2017: A very nice addon is https://github.com/Griesbacher/histou Copy the files from github to your web server directory. Copy histou.js to grafana. cp -p histou.js /usr/share/grafana/public/dashboards/ http://GRAFANA-Server:3000/dashboard/script/histou.js?host=$HOSTNAME$&service=$SERVICEDESC$

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