TestSimultaneousLDAPRequestsOnSingleProvider proved to be unreliable
on AKS due to some kind of kubectl port-forward issue, so only
run the LDAP client's integration tests on Kind. They are testing
the integration between the client code and the OpenLDAP test server,
not testing anything about Kubernetes, so running only on Kind should
give us sufficient test coverage.
This new capability describes whether a cluster is expected to allow anonymous requests (most do since k8s 1.6.x, but AKS has it disabled).
This commit also contains new capability YAML files for AKS and EKS, mostly to document publicly how we expect our tests to function in those environments.
Signed-off-by: Matt Moyer <moyerm@vmware.com>