SSL certificate for https://chef.gitlab.com/favicon.ico expires on Sunday, November 15, 2020

Start time: 02 November 2020, 12:30AM (UTC)
Severity: critical
full_query: probe_ssl_earliest_cert_expiry{job="blackbox"} - time() < 14 * 86400
Monitoring tool: Prometheus
Description: Check SSL for specified nodes and consider reissuing certificate.
GitLab alert: https://gitlab.com/gitlab-com/gl-infra/production/-/alert_management/20/details

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/label incident

Summary

More information will be added as we investigate the issue.

Timeline

All times UTC.

YYYY-MM-DD

• 00:00 - ...

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Click to expand or collapse the Incident Review section.

Incident Review

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Summary

1. Service(s) affected :
2. Team attribution :
3. Minutes downtime or degradation :

Metrics

Customer Impact

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

Incident Response Analysis

1. How was the event detected?
2. How could detection time be improved?
3. How did we reach the point where we knew how to mitigate the impact?
4. How could time to mitigation be improved?

Post Incident Analysis

1. How was the root cause diagnosed?
2. How could time to diagnosis be improved?
3. Do we have an existing backlog item that would've prevented or greatly reduced the impact of this incident?
4. Was this incident triggered by a change (deployment of code or change to infrastructure. If yes, have you linked the issue which represents the change?)?

Timeline

• YYYY-MM-DD XX:YY UTC: action X taken
• YYYY-MM-DD XX:YY UTC: action Y taken

5 Whys

Lessons Learned

Corrective Actions

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)