additional prometheus/grafana exporters/dashboards
our munin replacement is not entirely complete, as there are key parts of the infrastructure that are not monitored. here's a short inventory of what I found in legacy/trac#29681 (moved):
email servers monitoring (eugeni, etc? postfix)
- in debian, possible dashboard
- another approach: email delivery tests
mailman monitoring
no known exporter or dashboard
databases
- postgres exporter, in debian, no offocial dashboard, but many possible dashboards
- mysqld exporter, in debian - possible dashboard another from percona, not officially documented
- generic sql exporter, in debian - credativ config and dashboard
DNS / bind
GitLab
there is builtin support for prometheus that has to be configured
those are the other missing things I found during the audit performed while removing Munin:
-
spamassassin: ham/spam/total counts, looks for
spamd: ((processing|checking) message|identified spam|clean message)in mail.log, could be replaced with mtail -
postgres-wal-traffic_: should be covered by the postgres_exporter mentioned above, otherwise hook
psql -p "$port" --no-align --command 'SELECT * FROM pg_current_xlog_insert_location()' --tuples-only --quiet | tr -d /,into the node_exporter - ksm stats: extra memory statistics, might not be very important
- haproxy: https://github.com/prometheus/haproxy_exporter
- per VM disk usage: see legacy/trac#29816 (moved)
- vsftpd: custom mtail plugin, no known exporter or dashboard
See the full review in legacy/trac#29682 (moved) for details on those.
There were also demands from other teams for monitoring, see legacy/trac#29863 (moved) and legacy/trac#30006 (moved) for now.