[FR-PAR / NL-AMS / PL-WAW] Intermittent DNS failures in Serverless Containers cluster

The incident is now closed.
More details regarding the incident: following an unattended upgrade on some nodes in our infrastructure, some services have encountered networking problems. We have patched the whole infrastructure to prevent this specific issue from happening again.
This affected around ~50% of nodes in all regions, between around 2025-02-07 06:30 AM UTC and 2025-02-07 12:15 PM. During that time, functions/containers might have encountered timeouts when doing DNS resolutions (for example, this is the case when calling external services).
Sorry again for any inconvenience.

Faulty nodes on AMS and PAR have been fixed. We are going to monitor, but incident should not have impact anymore.
Sorry about the inconvenience.

Faulty nodes on WAW have been fixed. Issue still remains on AMS and PAR, we are on it.

We have also noticed this kind of errors on other regions (nl-ams, pl-waw). We are also doing operations on nodes there. Sorry about any inconvenience.

We've identified the issue and are in the process of replacing faulty hosts running Serverless Containers and Functions.
This may cause addition disruptions while we conduct those operations.
Sorry for the inconvenience, we're doing everything we can to resolve as swiftly as possible.

We are currently investigating this issue.