check_javamelody_http

There is already a check for javamelody (https://exchange.nagios.org/directory/Plugins/Java-Applications-and-Servers/check_java/details), but it reads the *.rrd files directly from the javamelody directory. I needed a check that can access javameldoy via http because of restrictions in the infrastructure, firewalls etc. This check monitors values of javamelody by using the lastValue parameter described here https://github.com/javamelody/javamelody/wiki/ExternalAPI. The plugin is a bash script that uses the wget command and other standard tools like e.g. bc. I have tested the script with Icinga and it should work with Nagios too, corresponding to https://nagios-plugins.org/doc/guidelines.html. There is a basic help with parameter description and examples included in the script: Usage: check_javamelody_http.sh -H host -path pathtojavamelody/monitoring -cpm check parameter -w warning -c critcal [-noproxy] [-port port] [-pv printvalue] [-unit unit] [-v] Usage: -H hostname hostname or ip of javamelody server -path pathtojavamelody/monitoring path to javamelody web app -cpm check parameter parameter for javamelody to check -w warning warning value -c critcal critical value -noproxy do not use proxy -port port number, 80 is default for http -pv printvalue name for checked value -unit unit Use unit for value. For units B(ytes), K(iB), M(iB), G(iB), T(iB) and P(iB) lastValue is converted automatically. -v verbose ouput Examples: $ check_javamelody_http.sh -H myserver -path app/monitoring -noproxy -cpm cpu -w 90 -c 95 -pv CPU -unit % OK: cpu:0%|cpu=0%;95;98 $ check_javamelody_http.sh -H myserver -path app/monitoring -noproxy -cpm usedMemory -w 14336 -c 14848 -pv usedMemory -unit M OK: usedMemory:706M|usedMemory=706M;14336;14848 $ check_javamelody_http.sh -H myserver -path app/monitoring -cpm httpMeanTimes -c 10000 -w 5000 -noproxy -pv httpMeanTimes -unit ms OK: httpMeanTimes:313ms|httpMeanTimes=313ms;5000;10000 Please add suggestions for improvement or testing results in the comments below. Thank you

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