[tor-bugs] #29681 [Internal Services/Tor Sysadmin Team]: replace munin with prometheus and grafana

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#29681: replace munin with prometheus and grafana
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 Reporter:  anarcat                              |          Owner:  anarcat
     Type:  task                                 |         Status:
                                                 |  accepted
 Priority:  Medium                               |      Milestone:
Component:  Internal Services/Tor Sysadmin Team  |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:                                       |  Actual Points:
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by anarcat):

 the apache dashboard has been deployed on all hosts running apache.

 i did a quick investigation of the other possible exporters and dashboards
 that we could use in our infrastructure. here's a copy of my notes:

 '''email servers monitoring (eugeni, etc? postfix)'''

 * [https://github.com/kumina/postfix_exporter in debian],
 [https://github.com/kumina/postfix_exporter/issues/21 possible dashboard]
 * another approach: [https://github.com/cherti/mailexporter email delivery
 tests]

 '''mailman monitoring'''

 no known exporter or dashboard

 '''databases'''

 * [https://github.com/wrouesnel/postgres_exporter/ postgres exporter in
 debian]
 * [https://github.com/wrouesnel/postgres_exporter/issues/218 no known
 dashboard]
 * [https://github.com/prometheus/mysqld_exporter mysqld exporter in
 debian] - [https://grafana.com/dashboards/625 possible dashboard]
 [https://github.com/percona/grafana-dashboards another from  percona],
 [https://github.com/prometheus/mysqld_exporter/issues/286 not officially
 documented]

 '''DNS / bind'''

 - [https://github.com/digitalocean/bind_exporter/ in debian],
 [https://grafana.com/dashboards/1666 official dashboard]

 '''GitLab'''

 there is [https://docs.gitlab.com/ee/administration/monitoring/prometheus/
 builtin support for prometheus] that has to be
 [https://docs.gitlab.com/ee/administration/monitoring/prometheus/gitlab_metrics.html
 configured]

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29681#comment:5>
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