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https://issues.apache.org/jira/browse/FLINK-27615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Biao Geng updated FLINK-27615:
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Component/s: Kubernetes Operator
> Document the minimum supported version of k8s for flink k8s operator
> --------------------------------------------------------------------
>
> Key: FLINK-27615
> URL: https://issues.apache.org/jira/browse/FLINK-27615
> Project: Flink
> Issue Type: Improvement
> Components: Kubernetes Operator
> Reporter: Biao Geng
> Priority: Major
>
> In our webhook, to support {{{}watchNamespaces{}}}, we rely on the
> {{kubernetes.io/metadata.name}} to filter the validation requests. However,
> this label will be automatically added to a namespace only since k8s 1.21.1
> due to k8s' [release
> notes|[https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.21.md#v1211]
> . If users run the flink k8s operator on older k8s versions, they have add
> such label by themselevs to support the feature of namespaceSelector in our
> webhook.
> As a result, if we want to support the feature defaultly, we may need to
> emphasize that users should use k8s >= v1.21.1 to run the flink k8s operator.
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