hscloud monitoring

Quick links

• Old Global Dashboard: monitoring.hackerspace.pl - old monitoring system, unrelated to this one, configured using Chef at management.hackerspace.pl (long since dead). This setup is supposed to replace it.

Architecture

The hscloud monitoring solution is two-tiered:

• at the global tier we run metrics aggregation, long-term storage, dashboard and alerting.
• at the agent tier we collect metrics from various sources (possibly even lower tiered agents).

All agent-tier agents send metrics to all global instances.

      .--------.     .--------.              '.
      | global |     | global |               > - global tier
      '--------'     '--------'              .'   (contains 'global instances')
        |    '---. .---'    |
        |         X         |
        |    .---' '---.    |
        |    |         |    |
.--------------.     .--------------------. '.
|   cluster    |     |    hswaw-proxy     |  |
| k0.hswaw.net |     | waw.hackerspace.pl |   > - agent tier
'--------------'     '--------------------' .'    (contains 'agents')

Agent - cluster

Cluster agents are responsible from collecting Kubernetes cluster metrics. They run a prometheus server that scrapes kubelet/cadvisor/... metrics and send them off to global instances.

Global Instances

Global agents run Victoria Metrics, ingest metrics from all agents, and perform long-term storage. In the future they will also run Grafana and AlertManager.