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Add sentence about the resource namespace and middleware

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Manuel Zapf 2020-04-27 11:32:05 +02:00 committed by GitHub
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10
docs/content/routing/providers/kubernetes-crd.md
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@ -618,10 +618,12 @@ Register the `Middleware` [kind](../../reference/dynamic-configuration/kubernete
!!! important "Cross-provider namespace"
As Kubernetes also has its own notion of namespace, one should not confuse the kubernetes namespace of a resource
(in the reference to the middleware) with the [provider namespace](../../middlewares/overview.md#provider-namespace),
when the definition of the middleware comes from another provider.
In this context, specifying a namespace when referring to the resource does not make any sense, and will be ignored.
As Kubernetes also has its own notion of namespace, one should not confuse the kubernetes namespace of a resource
(in the reference to the middleware) with the [provider namespace](../../middlewares/overview.md#provider-namespace),
when the definition of the middleware comes from another provider.
In this context, specifying a namespace when referring to the resource does not make any sense, and will be ignored.
Additionally, when you want to reference a Middleware from the CRD Provider,
you have to append the namespace of the resource in the resource-name as Traefik appends the namespace internally automatically.
More information about available middlewares in the dedicated [middlewares section](../../middlewares/overview.md).