Expose basic go runtime data to Zabbix

[bartoszmajsak]

[MatousJobanek]

Based on the discussion with Aslak, it seems that the only thing we need to do is to expose the Prometheus format endpoint. The rest should be taken care of.
So, technically this issue depends on this one: #101. When the PCP/Prometheus is done, then we could verify if anything is visible in the Zabbix and do any potential additional steps.

matous:
btw, Aslak, could you please share with me the "a few minor tweaks to the Dockerfile and 1 line of Go code to get the basic goruntime stuff exposed" to make the plugins comunicate and report the basic goruntime stuff to zabbix?

aslak:
https://github.com/rhdt/EL-Dockerfiles/tree/master/base/pcp
https://github.com/fabric8-services/fabric8-notification/blob/master/notification%2Bpmcd.sh
https://github.com/fabric8-services/fabric8-notification/blob/master/Dockerfile.deploy#L19
https://github.com/fabric8-services/fabric8-notification/blob/master/Dockerfile.deploy#L26

some additional information can be also found in the discussion here openshiftio/openshift.io#2778

[MatousJobanek]

@dipak-pawar could you please add more details on this issue?