[SAC] [OSGeo] #2763: Redo monitoring to use built in lxd prometheus monitor

[OSGeo]

#2763: Redo monitoring to use built in lxd prometheus monitor
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 Reporter:  robe           |      Owner:  sac@…
     Type:  task           |     Status:  new
 Priority:  normal         |  Milestone:  Sysadmin Contract 2022-II
Component:  Systems Admin  |   Keywords:
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 Right now for key servers I have node-exporters for basic monitoring.

 Introduced in lxd 4.19 is in-built prometheus exporter

 https://discuss.linuxcontainers.org/t/official-grafana-dashboard-for-
 lxd/13438

 I think I need to update prometheus first on all the servers before I can
 set this up. Once done, then we'd only need exporters for things like
 monitoring nginx, apache, postgresql
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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/2763>
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