Kubernetes/AKS Blue/Green upgrade

[@attiqurrehman9970]

Hi Houssem Dellai Thanks for this wonderful video. It really helped me upgrade the cluster. But I was stuck in one issue. I had to upgrade from 1.21.2 to 1.22.6.When I was finished with upgrade, I found my ingress controller stopped working. Later I found there are some controller apis are deprecated in 1.22.6. I had to delete the old ingress controller and create new one from scratch with latest version. It was time consuming process. can you please tell me a safe way to upgrade cluster with all apis as well?

[@yesubabu2880]

did not see this step: Perform Blue/Green upgrade for the cluster: create new cluster with new version and route traffic to that cluster using Traffic Manager.

[@mtbdavid123]

He listed multiple options for Blue/Green and chose to show option 4 as noted in his comments. #4: Perform Blue/Green upgrade for the node pool: Upgrade the AKS control plane only then add a new node pool with the new version.

[@seekeroftruth01]

Hi Houssem , thank you for the awesome content. i have a question : when you drain the blue node all pods of the node are terminated to be recreated in the new node , doesn't this create a down time for the application ?

[@Himanshu-xm8cw]

Awesome content!!!