add external e2e tests

Makefile

@@ -124,4 +124,21 @@ e2e-teardown:
 
 .PHONY: e2e-test
 e2e-test:
-	go test -v -timeout=0 ./test/e2e ${GINKGO_FLAGS}
+	go test -v -timeout=0 ./test/e2e ${GINKGO_FLAGS}
+
+.PHONY: setup-external-e2e
+setup-external-e2e:
+	curl -sL https://storage.googleapis.com/kubernetes-release/release/v1.19.0/kubernetes-test-linux-amd64.tar.gz --output e2e-tests.tar.gz
+	tar -xvf e2e-tests.tar.gz
+	rm e2e-tests.tar.gz
+	mkdir /tmp/csi-nfs
+	cp ./kubernetes/test/bin/e2e.test /tmp/csi-nfs/e2e.test
+	rm -r kubernetes
+	cp ./examples/kubernetes/storageclass-nfs.yaml /tmp/csi-nfs/storageclass.yaml
+	cp ./test/e2e-external/testdriver.yaml /tmp/csi-nfs/testdriver.yaml
+	./deploy/install-driver.sh
+	kubectl apply -f deploy/example/nfs-provisioner/nfs-server.yaml
+
+.PHONY: run-external-e2e
+run-external-e2e: setup-external-e2e
+	bash ./test/e2e-external/run.sh

test/e2e-external/README.md

@@ -0,0 +1,19 @@
+@@
+# Kubernetes tests
+
+This directory imports tests from kubernetes/kubernetes and enables:
+
+* External CSI tests, https://github.com/kubernetes/kubernetes/tree/master/test/e2e/storage/external
+
+# Prerequisites
+- kubernetes 1.17+
+
+# Run
+* External CSI tests: `FOCUS=External.Storage`.
+
+```sh
+ginkgo -p --progress --v -focus='External.Storage' \
+       -skip='\[Disruptive\]' /tmp/csi-nfs/e2e.test -- \
+       -storage.testdriver=/tmp/csi-nfs/testdriver.yaml \
+       --kubeconfig=$KUBECONFIG
+```

test/e2e-external/run.sh

@@ -0,0 +1,19 @@
+# Copyright 2020 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#!/bin/bash
+ginkgo -p --progress --v -focus='External.Storage' \
+       -skip='\[Disruptive\]' /tmp/csi-nfs/e2e.test -- \
+       -storage.testdriver=/tmp/csi-nfs/testdriver.yaml \
+       --kubeconfig=$KUBECONFIG

test/e2e-external/testdriver.yaml

@@ -0,0 +1,13 @@
+# Manifest for Kubernetes external tests.
+# See https://github.com/kubernetes/kubernetes/tree/master/test/e2e/storage/external
+
+ShortName: nfs
+StorageClass:
+  FromFile: /tmp/csi-nfs/storageclass.yaml
+DriverInfo:
+  Name: nfs.csi.k8s.io
+  Capabilities:
+    persistence: true
+    exec: true
+    multipods: true
+    RWX: true