2022-02-27: Blackbox probes for https://packages.gitlab.com are failing

Incident DRI

Current Status

More information will be added as we investigate the issue. For customers believed to be affected by this incident, please subscribe to this issue or monitor our status page for further updates.

Summary for CMOC notice / Exec summary:

1. Customer Impact: packages.gitlab.com was unavailable.
2. Service Impact: ServicePackageCloud
3. Impact Duration: 2022-02-27 00:00:00 - 2022-02-27 00:39:00; 39 minutes
4. Root cause: Expired certificate

Timeline

Recent Events (available internally only):

• Deployments
• Feature Flag Changes
• Infrastructure Configurations
• GCP Events (e.g. host failure)

All times UTC.

2022-02-27

• 00:14 - @f_santos declares incident in Slack.

Takeaways

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Corrective Actions

Corrective actions should be put here as soon as an incident is mitigated, ensure that all corrective actions mentioned in the notes below are included.

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Incident Review

• Ensure that the exec summary is completed at the top of the incident issue, the timeline is updated and relevant graphs are included in the summary
• If there are any corrective action items mentioned in the notes on the incident, ensure they are listed in the "Corrective Action" section
• Fill out relevant sections below or link to the meeting review notes that cover these topics

Customer Impact

1. Who was impacted by this incident? (i.e. external customers, internal customers)
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2. What was the customer experience during the incident? (i.e. preventing them from doing X, incorrect display of Y, ...)
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3. How many customers were affected?
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4. If a precise customer impact number is unknown, what is the estimated impact (number and ratio of failed requests, amount of traffic drop, ...)?
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What were the root causes?

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Incident Response Analysis

1. How was the incident detected?
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2. How could detection time be improved?
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3. How was the root cause diagnosed?
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4. How could time to diagnosis be improved?
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5. How did we reach the point where we knew how to mitigate the impact?
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6. How could time to mitigation be improved?
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7. What went well?
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Post Incident Analysis

1. Did we have other events in the past with the same root cause?
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2. Do we have existing backlog items that would've prevented or greatly reduced the impact of this incident?
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3. Was this incident triggered by a change (deployment of code or change to infrastructure)? If yes, link the issue.
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What went well?

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Guidelines

• Blameless RCA Guideline

Resources

1. If the Situation Zoom room was utilised, recording will be automatically uploaded to Incident room Google Drive folder (private)