Outage in Namespace
Degraded availability of Ubuntu's package archives affecting some Docker builds
Resolved Minor
October 28, 2025 - Started 6 months ago
- Lasted about 8 hours
Incident Report
We're seeing degraded availability of Ubuntu's package archives, causing some Docker builds using them to fail.
• Workloads running on GitHub Actions are automatically rerouted to different mirrors.
• Docker builds using Ubuntu base images are seeing degraded performance and errors.
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MONITORING
6 months ago - at 10/28/2025 07:42AM
Canonical has acknowledged this incident on their status page: https://status.canonical.com/#/incident/KNms6QK9ewuzz-7xUsPsNylV20jEt5kyKsd8A-3ptQGY_8VLJIlY9pR2kpwEEi6NCRNWqc5Ru503cC-LkjMQiA==, we'll continue to monitor availability and update this incident if the situation improves.
A temporary workaround can be added to your Dockerfile until registries recover:
Ubuntu 22.04 and earlier:
RUN sed -i 's%http://\(archive\|security\).ubuntu.com/%http://azure.archive.ubuntu.com/%g' /etc/apt/sources.list
Ubuntu 24.04 and later:
RUN sed -i 's%http://\(archive\|security\).ubuntu.com/%http://azure.archive.ubuntu.com/%g' /etc/apt/sources.list.d/ubuntu.sources
INVESTIGATING
6 months ago - at 10/28/2025 07:24AM
We're seeing degraded availability of Ubuntu's package archives, causing some Docker builds using them to fail.
• Workloads running on GitHub Actions are automatically rerouted to different mirrors.
• Docker builds using Ubuntu base images are seeing degraded performance and errors.
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