Kubernetes version upgrade compatibility and known issues

[Peter_youssef30]

Dears,

I need your recommendations as the monitored K8s clusters will be upgraded from V1.19 to 1.21 and then from V 1.21 to V1.25 so have you faced any issues during this upgrade activities, If yes what are the best practices and precautions to avoid such scenario.

• As per DT Documentation V1.21 already out of support: https://docs.dynatrace.com/docs/shortlink/support-model-k8s-ocp

Thanks.

[radek_jasinski]

Hi @Peter_youssef30 

What version of Dynatrace Operator are you using in your environment?

Radek

[Peter_youssef30]

Hi @radek_jasinski 
current Operator: v0.6.0

[radek_jasinski · Accepted solution]

Hi,

With such an old version of Dynatrace Operator, I would start by upgrading it to the latest version 0.14.1. Only after the Operator upgrade can you proceed with the Kubernetes upgrade. This is unlikely to cause a problem, but it has occurred to me that sometimes individual pods will need to be rebooted several times for OA to start monitoring in Full-Stack mode.

https://docs.dynatrace.com/docs/setup-and-configuration/setup-on-k8s/guides/operation/update-uninsta...

Radek