You can delete your Cloud account credentials (serviceAccounts) at any time and CAST.AI will lose access to your infrastructure.
You are free to use the provisioned K8s cluster as it is. You would lose managed service benefits like upgrades or backup - which you can still do in your own lifecycle management as it's vanilla K8s and the tools you know and use like kubeadm will work fine. But you also lose access to the Cost Optimization feature which is harder to replace due to our unique multi-cloud specialization.

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