#33972: Add Nagios check for CollecTor
-------------------------------------------------+-------------------------
 Reporter:  karsten                              |          Owner:  anarcat
     Type:  task                                 |         Status:  closed
 Priority:  Medium                               |      Milestone:
Component:  Internal Services/Tor Sysadmin Team  |        Version:
 Severity:  Normal                               |     Resolution:  fixed
 Keywords:                                       |  Actual Points:
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by anarcat):

 * status:  accepted => closed
 * resolution:   => fixed


Comment:

 the check is now online:

 https://nagios.torproject.org/cgi-
 bin/icinga/extinfo.cgi?type=2&host=global&service=collector

 and it's green.

 however, it's not possible to change the target host without patching the
 check. i didn't realize that, but it would be preferable to make that
 configurable on the commandline.

 it *is* possible to pass a host on the commandline, from what i can tell,
 but passing the machine hostname fails with a TLS error:

 {{{
 # /usr/lib/nagios/plugins/tor-check-collector -s
 colchicifolium.torproject.org
 UNKNOWN: Error fetching
 https://colchicifolium.torproject.org/index/index.json: [SSL:
 CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local
 issuer certificate (_ssl.c:1056)
 }}}

 the "typical" way this works in nagios is, for example:

 {{{
 /usr/lib/nagios/plugins/check_http --ssl -H '$ARG1$' -I '$HOSTADDRESS$'
 }}}

 those parameters are:

 {{{
  -H, --hostname=ADDRESS
     Host name argument for servers using host headers (virtual host)
     Append a port to include it in the header (eg: example.com:5000)
  -I, --IP-address=ADDRESS
     IP address or name (use numeric address if possible to bypass DNS
 lookup).
 }}}

 ie. you would do, in this case:

 {{{
 /usr/lib/nagios/plugins/tor-check-collector --ssl -H
 collector.torproject.org -I colchicifolium.torproject.org
 }}}

 I'm not sure that's necessary, but I figured I would mention this since
 you mentioned collector vs collector2...

 A bit late in the review process, but it would be nice to have a `--help`
 on the check, and regular (e.g. argparse) usage... ;)

 but for now, i guess this is done.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33972#comment:8>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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