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SylvainBarbot-1937 avatar image
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SylvainBarbot-1937 asked SylvainBarbot-1937 answered

Issue while updating AKS cluster with deprecated control and data plane

I have an aks cluster with :
- k8s 1.19.13 on the controle plane
- k8s 1.17.13 on the data plane

I need to update the controle plane as <1.20 will no longer be supported, but I can't:
- If I update the controle plane, it ask me to upgrade the dataplane first, as only 2 minor version bellow can be supported (1.17+2<1.20).
184622-image.png
- So I try to update the data plane first, but I can't as 1.19 is no longer supported, it prevent me from upgrading the nodes...
184529-image.png

I'm stuck in this situation and don't know how to upgrade neither the control plane or data plane...


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shivapatpi-MSFT avatar image
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shivapatpi-MSFT answered

Hello @SylvainBarbot-1937 ,
In these scenarios , please use Azure CLI command to upgrade the cluster:
az aks upgrade --resource-group resourcegroupname --name aksclustername --kubernetes-version versionnumber

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SylvainBarbot-1937 avatar image
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SylvainBarbot-1937 answered

Going with the cli, I was able to upgrade my dev cluster, I'm currently doing my production cluster but I suppose it will work too :-)
Thank you for the support.

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