Outage in Ubicloud
Intermittent failures on Canonical's official Ubuntu apt repositories
Resolved MinorIncident Report
Summary AI Generated
Canonical's Ubuntu apt mirrors experienced repeated outages over a 7.7-hour period, causing intermittent `apt-get` failures and hangs on Ubicloud Runners. As a workaround, users were advised to redirect apt sources to the more stable Azure mirrors (`azure.archive.ubuntu.com`) while keeping the official mirrors as lower-priority fallbacks. The incident was resolved once Canonical's mirrors stabilized, with no further failures observed.
Canonical's Ubuntu archive mirrors have gone down four separate times today. Their status page (https://status.canonical.com/#/?section=spIncidentHistory) lists each incident as brief and now resolved, but we are still seeing intermittent connection failures against those mirrors, which can cause apt-get steps to hang or fail.
The Azure mirrors are holding up better right now.
As a workaround, you can point your apt sources at azure.archive.ubuntu.com instead of archive.ubuntu.com and security.ubuntu.com by adding this step to your workflow:
- run: printf "http://azure.archive.ubuntu.com/ubuntu/\tpriority:1\nhttps://archive.ubuntu.com/ubuntu/\tpriority:2\nhttps://security.ubuntu.com/ubuntu/\tpriority:3\n" | sudo tee /etc/apt/apt-mirrors.txt
This keeps the official mirrors as lower-priority fallbacks, so builds still resolve packages if Azure becomes unreachable.
We are monitoring the situation closely.
Components affected
Ubicloud RunnersTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
5 days ago - at 09/11/2026 10:38PM
Canonical's Ubuntu apt mirrors have stabilized and we are no longer seeing failures on apt installs.
MONITORING
6 days ago - at 09/11/2026 03:00PM
Canonical's Ubuntu archive mirrors have gone down four separate times today. Their status page (https://status.canonical.com/#/?section=spIncidentHistory) lists each incident as brief and now resolved, but we are still seeing intermittent connection failures against those mirrors, which can cause apt-get steps to hang or fail.
The Azure mirrors are holding up better right now.
As a workaround, you can point your apt sources at azure.archive.ubuntu.com instead of archive.ubuntu.com and security.ubuntu.com by adding this step to your workflow:
- run: printf "http://azure.archive.ubuntu.com/ubuntu/\tpriority:1\nhttps://archive.ubuntu.com/ubuntu/\tpriority:2\nhttps://security.ubuntu.com/ubuntu/\tpriority:3\n" | sudo tee /etc/apt/apt-mirrors.txt
This keeps the official mirrors as lower-priority fallbacks, so builds still resolve packages if Azure becomes unreachable.
We are monitoring the situation closely.
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