Support regex in include-exclude labels

[martialblog]

Fixes #127

[martialblog]

@gianmarco-mameli Ciao, I think this should do it. Feel free to test it and give me feedback.

[gianmarco-mameli]

Hi, let me try it thanks

[gianmarco-mameli]

@martialblog Hi, I think I'm doing something wrong with the regex, do you have a working example? none of my tests seems to work
Thanks

[martialblog]

Hi, in the unittests I'm using these team=data.+ severity=crit.*. Can you give me examples of something that isn't working?

[gianmarco-mameli]

I made 2 tests but I see strange behavior, even without regex

1st test with a ContainerKilled alert (2 containers killed)

With no filters

[CRITICAL] - 2 Alerts: 2 Firing - 0 Pending - 0 Inactive
\_ [CRITICAL] [ContainerKilled] - Job: [cadvisor] on Instance: [testnode:8088]
 is firing - value: 60.64 - {"alertname":"ContainerKilled","id":"/system.slice
/docker-c9f11108c4d687eeb644db098dac08b1b25592e2dc93b2d54f7bf4e6605a688b.scope
","image":"nodered/node-red:4.1.10","instance":"testnode:8088","job":"cadvisor
","name":"nodered","severity":"warning"}
\_ [CRITICAL] [ContainerKilled] - Job: [cadvisor] on Instance: [testnode:8088]
 is firing - value: 70.64 - {"alertname":"ContainerKilled","id":"/system.slice
/docker-f000eecbd1f920a64433d12f24f733a007a476be7becd6d060442e77c0b1fd44.scope
","image":"eclipse-mosquitto:2.1.2-alpine","instance":"testnode:8088","job":"c
advisor","name":"mosquitto","severity":"warning"}
|total=2 firing=2 pending=0 inactive=0

Working

'/usr/lib/nagios/plugins/check_prometheus' 'alert' '--hostname' 'prometheus.test.domain.it' '--insecure' '--name' 'ContainerKilled' '--port' '443' '--problems' 'false' '--secure' '--timeout' '30' '--include-label' 'instance=testnode:\d+'

[CRITICAL] - 2 Alerts: 2 Firing - 0 Pending - 0 Inactive\_ [CRITICAL] [ContainerKilled] - Job: [cadvisor] on Instance: [testnode:8088] is firing - value: 60.64 - {"alertname":"ContainerKilled","id":"/system.slice/docker-c9f11108c4d687eeb644db098dac08b1b25592e2dc93b2d54f7bf4e6605a688b.scope","image":"nodered/node-red:4.1.10","instance":"testnode:8088","job":"cadvisor","name":"nodered","severity":"warning"}
\_ [CRITICAL] [ContainerKilled] - Job: [cadvisor] on Instance: [testnode:8088] is firing - value: 70.64 - {"alertname":"ContainerKilled","id":"/system.slice/docker-f000eecbd1f920a64433d12f24f733a007a476be7becd6d060442e77c0b1fd44.scope","image":"eclipse-mosquitto:2.1.2-alpine","instance":"testnode:8088","job":"cadvisor","name":"mosquitto","severity":"warning"}
|total=2 firing=2 pending=0 inactive=0

Not working

'/usr/lib/nagios/plugins/check_prometheus' 'alert' '--hostname' 'prometheus.test.domain.it' '--insecure' '--name' 'ContainerKilled' '--port' '443' '--problems' 'false' '--secure' '--timeout' '30' '--include-label' 'name=nodered'

[OK] - 0 Alerts: 0 Firing - 0 Pending - 0 Inactive
\_ [OK] No alerts retrieved
|total=0 firing=0 pending=0 inactive=0

2nd test with a TargetDown alert (2 targets down)

No filters ouput

[CRITICAL] - 2 Alerts: 2 Firing - 0 Pending - 0 Inactive
\_ [CRITICAL] [TargetDown] - Job: [dococd] is firing - value: 100.00 - {"alert
name":"TargetDown","job":"dococd","severity":"warning"}
\_ [CRITICAL] [TargetDown] - Job: [nut-upstower] is firing - value: 100.00 - {
"alertname":"TargetDown","job":"nut-upstower","severity":"warning"}
|total=2 firing=2 pending=0 inactive=0

Not working

'/usr/lib/nagios/plugins/check_prometheus' 'alert' '--hostname' 'prometheus.test.domain.it' '--insecure' '--name' 'TargetDown' '--port' '443' '--problems' 'false' '--secure' '--timeout' '30' '--include-label' 'job=dococd'

[OK] - 0 Alerts: 0 Firing - 0 Pending - 0 Inactive
\_ [OK] No alerts retrieved
|total=0 firing=0 pending=0 inactive=0

Not working

'/usr/lib/nagios/plugins/check_prometheus' 'alert' '--hostname' 'prometheus.test.domain.it' '--insecure' '--name' 'TargetDown' '--port' '443' '--problems' 'false' '--secure' '--timeout' '30' '--include-label' 'job=nut.+'

[CRITICAL] - 2 Alerts: 2 Firing - 0 Pending - 0 Inactive
\_ [CRITICAL] [TargetDown] - Job: [dococd] is firing - value: 100.00 - {"alertname":"TargetDown","job":"dococd","severity":"warning"}
\_ [CRITICAL] [TargetDown] - Job: [nut-upstower] is firing - value: 100.00 - {"alertname":"TargetDown","job":"nut-upstower","severity":"warning"}
|total=2 firing=2 pending=0 inactive=0