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[FLINK-20357][docs] Split HA documentation up into a general overview and the specific implementations #14254
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Are there any restrictions on the K8s versions supported? Or on the required K8s features? (I guess the answer is that we only need ConfigMaps?)
I'm asking, so that users can evaluate if it also works with implementations such as https://k3s.io/
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I need @wangyang0918 to answer this question here.
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The ConfigMap and resource version is supported at the very begging(much lower that 1.9). I believe that very few users are still using the K8s with such version lower than 1.9 since the latest stable version is now 1.19.
BTW, the native K8s integration require Kubernetes 1.9 or above.
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I guess to answer whether https://k3s.io/ works, one needs to try it out. I wouldn't block the PR on this, though. Thanks for the answer @wangyang0918.