Adding an e2e test on GMSA support

The previously existing e2e GMSA test really only tests a small part of the
whole GMSA set up process, namely that once the API has inlined the GMSA
contents in the pod's spec, and sent that to a worker's kubelet, then the
kubelet passes that down to the runtime.

This new test, in contrast, really tests the whole thing, i.e. deploying the
admission webhook, then deploying a GMSA custom resource, and using that
resource within a pod.

The downside of this test though, is that it does need to make a lot of
assumptions about the cluster it runs against, notably that it runs on a worker
node that's already been joined to a working Active Directory domain (there are
other assumptions, all documented at the beginning of the test file); for that
reason, it is only intended to ever be run against an AKS cluster with the
custom AKS extension from
kubernetes-sigs/windows-testing#98.

Note that this test doesn't aim at testing every edge-case, such as
a pod trying to use a GMSA it doesn't have access to; the webhook has
its own tests for these. This test's goal is to ensure the happy path
doesn't break.

Signed-off-by: Jean Rouge <[email protected]>

Author: wk8

test/e2e/windows/BUILD

@@ -8,19 +8,22 @@ go_library(
         "density.go",
         "dns.go",
         "framework.go",
-        "gmsa.go",
+        "gmsa_full.go",
+        "gmsa_kubelet.go",
         "hybrid_network.go",
         "memory_limits.go",
         "networking.go",
         "security_context.go",
         "service.go",
+        "utils.go",
         "volumes.go",
     ],
     importpath = "k8s.io/kubernetes/test/e2e/windows",
     visibility = ["//visibility:public"],
     deps = [
         "//pkg/kubelet/apis/config:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
+        "//staging/src/k8s.io/api/rbac/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/labels:go_default_library",
@@ -43,6 +46,7 @@ go_library(
         "//test/utils/image:go_default_library",
         "//vendor/github.com/onsi/ginkgo:go_default_library",
         "//vendor/github.com/onsi/gomega:go_default_library",
+        "//vendor/github.com/pkg/errors:go_default_library",
     ],
 )