SRE

Concepts 3

• SLI and SLO — the share of good requests and the error budget

  SLI: the measured share of good requests over a window. SLO: its target. The gap to 100 % is the error budget.

  awk -vawk

  14 min
• Incident response — the first minutes, runbook and timeline

  An incident is an outage users can see: restore the service by the runbook first, look for the cause later.

  curl -smkdir -pecho

  11 min
• Postmortem — a blameless outage review

  A postmortem is a written outage review: timeline, impact, root cause and action items, so the outage does not repeat.

  cdjournalctl -Ssort

  10 min