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monitoring

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Components

Grafana

  • custom visualization + alerting
  • only 1 instance required (deployed at test-server)
  • boards can be defined via services.grafana.provision.dashboards, for now we only backuped json-exports to ./grafana/boards

Prometheus

  • round robin time series store
  • allows pushes, but recommends scraping from /metrics endpoints of exporters

Node exporter

  • general host state (mem+cpu+network+disk+systemd+filedescriptors+…)

Blackbox exporter

  • allows connection checks to other hosts (icmp+http+…)
  • used to check if http servers are running

Loki

  • efficient log storage
  • compatible with prometheus api

Promtail

  • agent that feeds loki with syslog