IONOS Cloud experienced a minor incident on December 18, 2025 affecting Managed Kubernetes and Managed Kubernetes and 1 more component, lasting 2h 39m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Dec 18, 2025, 04:51 PM UTC
We are currently investigating degraded performance in our Kubernetes service.
- identified Dec 18, 2025, 05:03 PM UTC
We have traced the issue back to a specific control plane cluster. Customers using the affected control plane cluster will currently be unable to deploy changes. Our Kubernetes Team is working towards restoring the affected cluster.
- monitoring Dec 18, 2025, 05:20 PM UTC
We have restored the affected control plane cluster. We are now restarting related API servers and then monitoring the system for any anomalies before marking the incident as resolved.
- resolved Dec 18, 2025, 07:31 PM UTC
We are marking this incident as resolved. All services behave normally.