[KMSv2] Add kind cluster and encryption config for e2e

Signed-off-by: Anish Ramasekar <anish.ramasekar@gmail.com>

test/e2e/testing-manifests/auth/encrypt/OWNERS

@@ -0,0 +1,8 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+approvers:
+  - sig-auth-encryption-at-rest-approvers
+reviewers:
+  - sig-auth-encryption-at-rest-reviewers
+labels:
+  - sig/auth

test/e2e/testing-manifests/auth/encrypt/encryption-config.yaml

@@ -0,0 +1,10 @@
+apiVersion: apiserver.config.k8s.io/v1
+kind: EncryptionConfiguration
+resources:
+  - resources:
+    - secrets
+    providers:
+    - secretbox:
+        keys:
+        - name: key1
+          secret: YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=

test/e2e/testing-manifests/auth/encrypt/kind.yaml

@@ -0,0 +1,31 @@
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+- role: control-plane
+  extraMounts:
+  - containerPath: /etc/kubernetes/encryption-config.yaml
+    hostPath: test/e2e/testing-manifests/auth/encrypt/encryption-config.yaml
+    readOnly: true
+    propagation: None
+  kubeadmConfigPatches:
+    - |
+      kind: ClusterConfiguration
+      apiServer:
+        extraArgs:
+          encryption-provider-config: "/etc/kubernetes/encryption-config.yaml"
+          v: "5"
+        extraVolumes:
+        - name: encryption-config
+          hostPath: "/etc/kubernetes/encryption-config.yaml"
+          mountPath: "/etc/kubernetes/encryption-config.yaml"
+          readOnly: true
+          pathType: File
+      scheduler:
+        extraArgs:
+          v: "5"
+      controllerManager:
+        extraArgs:
+          v: "5"
+- role: worker
+- role: worker
+- role: worker