2022-04-18: Firing 1 - Containers for the `web` service, `main` are unable to unable to start.

Incident DRI

Current Status

A bad node in us-east1-b, had non-system pods stuck in the Initialization phase. The difference between that node and another healthy one that was created around the same time has been noted in the comment section, as a way to mitigate the incident, the node was manually drained, then shortly auto-deleted.

The root cause appeared to have been triggered by a recent change, but that root cause follows a series of known issues with Calico.

Summary for CMOC notice / Exec summary:

  1. Customer Impact: No customers impact.
  2. Service Impact: ServiceWeb
  3. Impact Duration: 08:47 UTC - 11:09 UTC (142 minutes)
  4. Root cause: RootCauseKnown-Software-Issue.

Timeline

Recent Events (available internally only):

All times UTC.

2022-04-18

  • 09:07 - EOC alerted.
  • 09:27 - @rehab declares incident in Slack.
  • 11:09 - bad node drained.
  • 11:09 - alert cleared.
  • 11:25 - bad node auto-deleted.
  • 11:38 - IncidentMitigated

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Takeaways

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Incident Review
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Customer Impact

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What were the root causes?

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Incident Response Analysis

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Post Incident Analysis

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What went well?

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Guidelines

Resources

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Edited by Rehab