[tor-bugs] #29863 [Obfuscation/Snowflake]: Add disk space monitoring for snowflake infrastructure

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#29863: Add disk space monitoring for snowflake infrastructure
-----------------------------------+---------------------------
 Reporter:  cohosh                 |          Owner:  (none)
     Type:  task                   |         Status:  new
 Priority:  Medium                 |      Milestone:
Component:  Obfuscation/Snowflake  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:  snowflake              |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:  Sponsor19
-----------------------------------+---------------------------

Comment (by anarcat):

 * apt install prometheus-node-exporter (from stretch-backports please)

 is actually:

 {{{
 apt install -t stretch-backports prometheus-node-exporter
 }}}

 ... assuming that backports is already configured. if it isn't, such a
 line in `/etc/apt/sources.list.d/backports.debian.org.list` should
 suffice:

 {{{
 deb     https://deb.debian.org/debian/  stretch-backports       main
 contrib non-free
 }}}

 ... followed by an `apt update`, naturally.

 I believe the two hostnames to scrape are `snowflake-
 broker.bamsoftware.com` and `snowflake.bamsoftware.com`, correct me if
 that's wrong. So that second bullet point is probably already done. :)

 The plan from TPA side is to hook those as part of a new `node` `job` in
 the `scrape_configs` in `prometheus.yml`, from Puppet, in
 `profile::prometheus::server`.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29863#comment:4>
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