Add XFS utils and configuration to test on GKE with ubuntu image type

Author: davidz627

Dockerfile

@@ -25,6 +25,6 @@ FROM gcr.io/google-containers/debian-base-amd64:v2.0.0
 COPY --from=builder /go/src/sigs.k8s.io/gcp-compute-persistent-disk-csi-driver/bin/gce-pd-csi-driver /gce-pd-csi-driver
 
 # Install necessary dependencies
-RUN clean-install util-linux e2fsprogs mount ca-certificates udev
+RUN clean-install util-linux e2fsprogs mount ca-certificates udev xfsprogs
 
 ENTRYPOINT ["/gce-pd-csi-driver"]

test/k8s-integration/cluster.go

@@ -59,7 +59,7 @@ func buildKubernetes(k8sDir, command string) error {
 	return nil
 }
 
-func clusterUpGCE(k8sDir, gceZone string, numNodes int) error {
+func clusterUpGCE(k8sDir, gceZone string, numNodes int, imageType string) error {
 	kshPath := filepath.Join(k8sDir, "cluster", "kubectl.sh")
 	_, err := os.Stat(kshPath)
 	if err == nil {
@@ -80,6 +80,11 @@ func clusterUpGCE(k8sDir, gceZone string, numNodes int) error {
 		klog.V(4).Infof("Set Kubernetes feature gates: %v", *kubeFeatureGates)
 	}
 
+	err = setImageTypeEnvs(imageType)
+	if err != nil {
+		return fmt.Errorf("failed to set image type environment variables: %v", err)
+	}
+
 	err = os.Setenv("NUM_NODES", strconv.Itoa(numNodes))
 	if err != nil {
 		return err
@@ -98,7 +103,35 @@ func clusterUpGCE(k8sDir, gceZone string, numNodes int) error {
 	return nil
 }
 
-func clusterUpGKE(gceZone, gceRegion string, numNodes int) error {
+func setImageTypeEnvs(imageType string) error {
+	//const image = "ubuntu-1804-bionic-v20191211"
+	//const imageProject = "ubuntu-os-cloud"
+	switch strings.ToLower(imageType) {
+	case "cos":
+	case "gci": // GCI/COS is default type and does not need env vars set
+	case "ubuntu":
+		return errors.New("setting environment vars for bringing up *ubuntu* cluster on GCE is unimplemented")
+		/* TODO(dyzz) figure out how to bring up a Ubuntu cluster on GCE. The below doesn't work.
+		err := os.Setenv("KUBE_OS_DISTRIBUTION", "ubuntu")
+		if err != nil {
+			return err
+		}
+		err = os.Setenv("KUBE_GCE_NODE_IMAGE", image)
+		if err != nil {
+			return err
+		}
+		err = os.Setenv("KUBE_GCE_NODE_PROJECT", imageProject)
+		if err != nil {
+			return err
+		}
+		*/
+	default:
+		return fmt.Errorf("could not set env for image type %s, only gci, cos, ubuntu supported")
+	}
+	return nil
+}
+
+func clusterUpGKE(gceZone, gceRegion string, numNodes int, imageType string) error {
 	locationArg, locationVal, err := gkeLocationArgs(gceZone, gceRegion)
 	if err != nil {
 		return err
@@ -119,7 +152,7 @@ func clusterUpGKE(gceZone, gceRegion string, numNodes int) error {
 	}
 	cmd := exec.Command("gcloud", "container", "clusters", "create", gkeTestClusterName,
 		locationArg, locationVal, "--cluster-version", *gkeClusterVer, "--num-nodes", strconv.Itoa(numNodes),
-		"--quiet", "--machine-type", "n1-standard-2")
+		"--quiet", "--machine-type", "n1-standard-2", "--image-type", imageType)
 	err = runCommand("Staring E2E Cluster on GKE", cmd)
 	if err != nil {
 		return fmt.Errorf("failed to bring up kubernetes e2e cluster on gke: %v", err)
@@ -184,7 +217,7 @@ func downloadKubernetesSource(pkgDir, k8sIoDir, kubeVersion string) error {
 	return nil
 }
 
-func getGKEKubeTestArgs(gceZone, gceRegion string) ([]string, error) {
+func getGKEKubeTestArgs(gceZone, gceRegion, imageType string) ([]string, error) {
 	var locationArg, locationVal string
 	switch {
 	case len(gceZone) > 0:
@@ -222,7 +255,7 @@ func getGKEKubeTestArgs(gceZone, gceRegion string) ([]string, error) {
 		"--gcp-network=default",
 		"--check-version-skew=false",
 		"--deployment=gke",
-		"--gcp-node-image=cos",
+		fmt.Sprintf("--gcp-node-image=%s", imageType),
 		"--gcp-network=default",
 		fmt.Sprintf("--cluster=%s", gkeTestClusterName),
 		fmt.Sprintf("--gke-environment=%s", gkeEnv),

test/k8s-integration/config/test-config-template.in

@@ -7,9 +7,9 @@ DriverInfo:
     ext2:
     ext3:
     ext4:
+    xfs:
     # The following FS types supported by GCE PD but
-    # currently we do not test the CSI Driver on Ubuntu or Windows
-    # xfs: XFS only available on Ubuntu
+    # currently we do not test the CSI Driver on Windows
     # ntfs: NTFS only available on Windows
   Capabilities:
   {{range .Capabilities}}  {{ . }}: true

test/k8s-integration/main.go

@@ -42,6 +42,7 @@ var (
 	deploymentStrat  = flag.String("deployment-strategy", "gce", "choose between deploying on gce or gke")
 	gkeClusterVer    = flag.String("gke-cluster-version", "", "version of Kubernetes master and node for gke")
 	numNodes         = flag.Int("num-nodes", -1, "the number of nodes in the test cluster")
+	imageType        = flag.String("image-type", "cos", "the image type to use for the cluster")
 
 	// Test infrastructure flags
 	boskosResourceType = flag.String("boskos-resource-type", "gce-project", "name of the boskos resource type to reserve")
@@ -80,6 +81,7 @@ func main() {
 	ensureVariable(saFile, true, "service-account-file is a required flag")
 	ensureVariable(deployOverlayName, true, "deploy-overlay-name is a required flag")
 	ensureVariable(testFocus, true, "test-focus is a required flag")
+	ensureVariable(imageType, true, "image type is a required flag. Available options include 'cos' and 'ubuntu'")
 
 	if len(*gceRegion) != 0 {
 		ensureVariable(gceZone, false, "gce-zone and gce-region cannot both be set")
@@ -238,9 +240,9 @@ func handle() error {
 		var err error = nil
 		switch *deploymentStrat {
 		case "gce":
-			err = clusterUpGCE(k8sDir, *gceZone, *numNodes)
+			err = clusterUpGCE(k8sDir, *gceZone, *numNodes, *imageType)
 		case "gke":
-			err = clusterUpGKE(*gceZone, *gceRegion, *numNodes)
+			err = clusterUpGKE(*gceZone, *gceRegion, *numNodes, *imageType)
 		default:
 			err = fmt.Errorf("deployment-strategy must be set to 'gce' or 'gke', but is: %s", *deploymentStrat)
 		}
@@ -286,7 +288,7 @@ func handle() error {
 	var cloudProviderArgs []string
 	switch *deploymentStrat {
 	case "gke":
-		cloudProviderArgs, err = getGKEKubeTestArgs(*gceZone, *gceRegion)
+		cloudProviderArgs, err = getGKEKubeTestArgs(*gceZone, *gceRegion, *imageType)
 		if err != nil {
 			return fmt.Errorf("failed to build GKE kubetest args: %v", err)
 		}
@@ -375,8 +377,11 @@ func runTestsWithConfig(testDir, testFocus, testSkip, testConfigArg string, clou
 	homeDir, _ := os.LookupEnv("HOME")
 	os.Setenv("KUBECONFIG", filepath.Join(homeDir, ".kube/config"))
 
-	artifactsDir, _ := os.LookupEnv("ARTIFACTS")
-	reportArg := fmt.Sprintf("-report-dir=%s", artifactsDir)
+	artifactsDir, ok := os.LookupEnv("ARTIFACTS")
+	reportArg := ""
+	if ok {
+		reportArg = fmt.Sprintf("-report-dir=%s", artifactsDir)
+	}
 
 	testArgs := fmt.Sprintf("--ginkgo.focus=%s --ginkgo.skip=%s %s %s",
 		testFocus,