Hi,
We have planned to upgrade your managed Kubernetes clusters from version 1.20 to 1.21.
When
The upgrade will be done the 30/06/2022 starting from 7 am UTC time. We will gradually apply the upgrade on all the clusters we manage, so expect the entire operation to take 3-4 hours.
Why
Each cloud provider has a limited number of supported Kubernetes versions and Qovery manages for you the upgrades!
More info on the supported Kubernetes versions by cloud provider:
Impact on your services
Kubernetes manage the upgrades by automatically creating new nodes in the 1.21, migrating the pods on the new node and shutting down the 1.20 nodes. The upgrade might cause a very small downtime for your applications, if you want to avoid the downtime you should:
- set at least 2 instances for your applications (within the application settings)
- set the liveness/readiness probes (using the advanced settings)
For any service you have installed by yourself, please make sure that they are compatible with Kubernetes 1.21.
We will keep updating our status page with all the information about the maintenance.
For any questions, please comment directly within this thread!
Alessandro
cc 
