Fix k8s for example for rootCAs serversTransport - #9274
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The secret data used the key "tls.crt", but it must be either "ca.crt" or "tls.ca" according to the docs at https://doc.traefik.io/traefik/routing/providers/kubernetes-crd/#kind-serverstransport.
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| data: | ||
| tls.crt: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCi0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0= | ||
| ca.crt: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCi0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0= |
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FYI, I see in the code that we apparently use whatever's in data (as long as there's only one field) anyway, so it seems that the existing example would have worked nonetheless. And there's a comment saying we're supposed to drop that behaviour at some point.
But yeah, better be matching the doc.
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What does this PR do?
It fixes a configuration example which doesn't match documentation.
The
rootCAs(forserversTransport) secret data used the keytls.crt, but it must be eitherca.crtortls.caaccording to the docs at https://doc.traefik.io/traefik/routing/providers/kubernetes-crd/#kind-serverstransport.Motivation
I was wondering if a
cert-manager.io/Certificatesecret could be used to provide the CA. It didn't appear so from the example, since the leaf certificate would be used, but when I looked at the docs, it became clear that it would work as expected.