CSI code changes

Godeps/Godeps.json

@@ -452,9 +452,9 @@
 			"Rev": "8d75e11374a1928608c906fe745b538483e7aeb2"
 		},
 		{
-			"ImportPath": "github.com/container-storage-interface/spec/lib/go/csi",
+			"ImportPath": "github.com/container-storage-interface/spec/lib/go/csi/v0",
 			"Comment": "v0.1.0-5-g7ab01a9",
-			"Rev": "91c189774c16b0661255943c09ea9d97d5a423e7"
+			"Rev": "31c167062b1a62a9810e4fd94d7c986113b490b8"
 		},
 		{
 			"ImportPath": "github.com/containerd/console",

Godeps/LICENSES

@@ -12786,7 +12786,7 @@ SOFTWARE.
 
 
 ================================================================================
-= vendor/github.com/container-storage-interface/spec/lib/go/csi licensed under: =
+= vendor/github.com/container-storage-interface/spec/lib/go/csi/v0 licensed under: =
 
                                  Apache License
                            Version 2.0, January 2004

pkg/volume/csi/BUILD

@@ -16,7 +16,7 @@ go_library(
         "//pkg/util/strings:go_default_library",
         "//pkg/volume:go_default_library",
         "//pkg/volume/util:go_default_library",
-        "//vendor/github.com/container-storage-interface/spec/lib/go/csi:go_default_library",
+        "//vendor/github.com/container-storage-interface/spec/lib/go/csi/v0:go_default_library",
         "//vendor/github.com/golang/glog:go_default_library",
         "//vendor/golang.org/x/net/context:go_default_library",
         "//vendor/google.golang.org/grpc:go_default_library",
@@ -43,7 +43,6 @@ go_test(
         "//pkg/volume:go_default_library",
         "//pkg/volume/csi/fake:go_default_library",
         "//pkg/volume/testing:go_default_library",
-        "//vendor/github.com/container-storage-interface/spec/lib/go/csi:go_default_library",
         "//vendor/golang.org/x/net/context:go_default_library",
         "//vendor/google.golang.org/grpc:go_default_library",
         "//vendor/k8s.io/api/core/v1:go_default_library",

pkg/volume/csi/csi_client.go

@@ -17,13 +17,11 @@ limitations under the License.
 package csi
 
 import (
-	"bytes"
 	"errors"
-	"fmt"
 	"net"
 	"time"
 
-	csipb "github.com/container-storage-interface/spec/lib/go/csi"
+	csipb "github.com/container-storage-interface/spec/lib/go/csi/v0"
 	"github.com/golang/glog"
 	grpctx "golang.org/x/net/context"
 	"google.golang.org/grpc"
@@ -31,7 +29,6 @@ import (
 )
 
 type csiClient interface {
-	AssertSupportedVersion(ctx grpctx.Context, ver *csipb.Version) error
 	NodePublishVolume(
 		ctx grpctx.Context,
 		volumeid string,
@@ -40,14 +37,13 @@ type csiClient interface {
 		accessMode api.PersistentVolumeAccessMode,
 		volumeInfo map[string]string,
 		volumeAttribs map[string]string,
-		nodePublishCredentials map[string]string,
+		nodePublishSecrets map[string]string,
 		fsType string,
 	) error
 	NodeUnpublishVolume(
 		ctx grpctx.Context,
 		volID string,
 		targetPath string,
-		nodeUnpublishCredentials map[string]string,
 	) error
 }
 
@@ -94,63 +90,6 @@ func (c *csiDriverClient) assertConnection() error {
 	return nil
 }
 
-// AssertSupportedVersion ensures driver supports specified spec version.
-// If version is not supported, the assertion fails with an error.
-// This test should be done early during the storage operation flow to avoid
-// unnecessary calls later.
-// `ver` argument holds the expected supported version.
-func (c *csiDriverClient) AssertSupportedVersion(ctx grpctx.Context, ver *csipb.Version) error {
-	if c.versionAsserted {
-		if !c.versionSupported {
-			return fmt.Errorf("version %s not supported", verToStr(ver))
-		}
-		return nil
-	}
-
-	if err := c.assertConnection(); err != nil {
-		c.versionAsserted = false
-		return err
-	}
-
-	glog.V(4).Info(log("asserting version supported by driver"))
-	rsp, err := c.idClient.GetSupportedVersions(ctx, &csipb.GetSupportedVersionsRequest{})
-	if err != nil {
-		c.versionAsserted = false
-		return err
-	}
-
-	supported := false
-	vers := rsp.GetSupportedVersions()
-	glog.V(4).Info(log("driver reports %d versions supported: %s", len(vers), versToStr(vers)))
-
-	// If our supported version is still at 0.X.X, then check
-	// also the minor number. If our supported version is >= 1.X.X
-	// then check only the major number.
-	for _, v := range vers {
-		if ver.GetMajor() == int32(0) &&
-			(ver.GetMajor() == v.GetMajor() && ver.GetMinor() == v.GetMinor()) {
-			supported = true
-			break
-		} else if ver.GetMajor() != int32(0) && ver.GetMajor() == v.GetMajor() {
-			supported = true
-			break
-		}
-	}
-
-	c.versionAsserted = true
-	c.versionSupported = supported
-
-	if !supported {
-		return fmt.Errorf(
-			"CSI Driver does not support version %s. Instead it supports versions %s",
-			verToStr(ver),
-			versToStr(vers))
-	}
-
-	glog.V(4).Info(log("version %s supported", verToStr(ver)))
-	return nil
-}
-
 func (c *csiDriverClient) NodePublishVolume(
 	ctx grpctx.Context,
 	volID string,
@@ -159,7 +98,7 @@ func (c *csiDriverClient) NodePublishVolume(
 	accessMode api.PersistentVolumeAccessMode,
 	volumeInfo map[string]string,
 	volumeAttribs map[string]string,
-	nodePublishCredentials map[string]string,
+	nodePublishSecrets map[string]string,
 	fsType string,
 ) error {
 	glog.V(4).Info(log("calling NodePublishVolume rpc [volid=%s,target_path=%s]", volID, targetPath))
@@ -175,13 +114,12 @@ func (c *csiDriverClient) NodePublishVolume(
 	}
 
 	req := &csipb.NodePublishVolumeRequest{
-		Version:                csiVersion,
-		VolumeId:               volID,
-		TargetPath:             targetPath,
-		Readonly:               readOnly,
-		PublishInfo:            volumeInfo,
-		VolumeAttributes:       volumeAttribs,
-		NodePublishCredentials: nodePublishCredentials,
+		VolumeId:           volID,
+		TargetPath:         targetPath,
+		Readonly:           readOnly,
+		PublishInfo:        volumeInfo,
+		VolumeAttributes:   volumeAttribs,
+		NodePublishSecrets: nodePublishSecrets,
 		VolumeCapability: &csipb.VolumeCapability{
 			AccessMode: &csipb.VolumeCapability_AccessMode{
 				Mode: asCSIAccessMode(accessMode),
@@ -198,7 +136,7 @@ func (c *csiDriverClient) NodePublishVolume(
 	return err
 }
 
-func (c *csiDriverClient) NodeUnpublishVolume(ctx grpctx.Context, volID string, targetPath string, nodeUnpublishCredentials map[string]string) error {
+func (c *csiDriverClient) NodeUnpublishVolume(ctx grpctx.Context, volID string, targetPath string) error {
 	glog.V(4).Info(log("calling NodeUnpublishVolume rpc: [volid=%s, target_path=%s", volID, targetPath))
 	if volID == "" {
 		return errors.New("missing volume id")
@@ -212,10 +150,8 @@ func (c *csiDriverClient) NodeUnpublishVolume(ctx grpctx.Context, volID string,
 	}
 
 	req := &csipb.NodeUnpublishVolumeRequest{
-		Version:                  csiVersion,
-		VolumeId:                 volID,
-		TargetPath:               targetPath,
-		NodeUnpublishCredentials: nodeUnpublishCredentials,
+		VolumeId:   volID,
+		TargetPath: targetPath,
 	}
 
 	_, err := c.nodeClient.NodeUnpublishVolume(ctx, req)
@@ -233,22 +169,3 @@ func asCSIAccessMode(am api.PersistentVolumeAccessMode) csipb.VolumeCapability_A
 	}
 	return csipb.VolumeCapability_AccessMode_UNKNOWN
 }
-
-func verToStr(ver *csipb.Version) string {
-	if ver == nil {
-		return ""
-	}
-	return fmt.Sprintf("%d.%d.%d", ver.GetMajor(), ver.GetMinor(), ver.GetPatch())
-}
-
-func versToStr(vers []*csipb.Version) string {
-	if vers == nil {
-		return ""
-	}
-	str := bytes.NewBufferString("[")
-	for _, v := range vers {
-		str.WriteString(fmt.Sprintf("{%s};", verToStr(v)))
-	}
-	str.WriteString("]")
-	return str.String()
-}

pkg/volume/csi/csi_client_test.go

@@ -20,7 +20,6 @@ import (
 	"errors"
 	"testing"
 
-	csipb "github.com/container-storage-interface/spec/lib/go/csi"
 	grpctx "golang.org/x/net/context"
 	"google.golang.org/grpc"
 	api "k8s.io/api/core/v1"
@@ -39,35 +38,6 @@ func setupClient(t *testing.T) *csiDriverClient {
 	return client
 }
 
-func TestClientAssertSupportedVersion(t *testing.T) {
-	testCases := []struct {
-		testName string
-		ver      *csipb.Version
-		mustFail bool
-		err      error
-	}{
-		{testName: "supported version", ver: &csipb.Version{Major: 0, Minor: 0, Patch: 0}},
-		{testName: "supported version", ver: &csipb.Version{Major: 0, Minor: 1, Patch: 0}},
-		{testName: "supported version", ver: &csipb.Version{Major: 0, Minor: 1, Patch: 10}},
-		{testName: "supported version", ver: &csipb.Version{Major: 0, Minor: 2, Patch: 0}},
-		{testName: "supported version", ver: &csipb.Version{Major: 1, Minor: 1, Patch: 0}},
-		{testName: "supported version", ver: &csipb.Version{Major: 1, Minor: 0, Patch: 10}},
-		{testName: "unsupported version", ver: &csipb.Version{Major: 10, Minor: 0, Patch: 0}, mustFail: true},
-		{testName: "unsupported version", ver: &csipb.Version{Major: 0, Minor: 10, Patch: 0}, mustFail: true},
-		{testName: "grpc error", ver: &csipb.Version{Major: 0, Minor: 1, Patch: 0}, mustFail: true, err: errors.New("grpc error")},
-	}
-
-	for _, tc := range testCases {
-		t.Logf("test case: %s", tc.testName)
-		client := setupClient(t)
-		client.idClient.(*fake.IdentityClient).SetNextError(tc.err)
-		err := client.AssertSupportedVersion(grpctx.Background(), tc.ver)
-		if tc.mustFail && err == nil {
-			t.Error("test must fail, but err = nil")
-		}
-	}
-}
-
 func TestClientNodePublishVolume(t *testing.T) {
 	testCases := []struct {
 		name       string
@@ -126,8 +96,7 @@ func TestClientNodeUnpublishVolume(t *testing.T) {
 	for _, tc := range testCases {
 		t.Logf("test case: %s", tc.name)
 		client.nodeClient.(*fake.NodeClient).SetNextError(tc.err)
-		nodeUnpublishCredentials := map[string]string{}
-		err := client.NodeUnpublishVolume(grpctx.Background(), tc.volID, tc.targetPath, nodeUnpublishCredentials)
+		err := client.NodeUnpublishVolume(grpctx.Background(), tc.volID, tc.targetPath)
 		if tc.mustFail && err == nil {
 			t.Error("test must fail, but err is nil")
 		}

pkg/volume/csi/csi_mounter.go

@@ -121,12 +121,6 @@ func (c *csiMountMgr) SetUpAt(dir string, fsGroup *int64) error {
 	nodeName := string(c.plugin.host.GetNodeName())
 	attachID := getAttachmentName(csiSource.VolumeHandle, csiSource.Driver, nodeName)
 
-	// ensure version is supported
-	if err := csi.AssertSupportedVersion(ctx, csiVersion); err != nil {
-		glog.Error(log("mounter.SetUpAt failed to assert version: %v", err))
-		return err
-	}
-
 	// search for attachment by VolumeAttachment.Spec.Source.PersistentVolumeName
 	if c.volumeInfo == nil {
 		attachment, err := c.k8s.StorageV1beta1().VolumeAttachments().Get(attachID, meta.GetOptions{})
@@ -179,9 +173,9 @@ func (c *csiMountMgr) SetUpAt(dir string, fsGroup *int64) error {
 	if len(fsType) == 0 {
 		fsType = defaultFSType
 	}
-	nodePublishCredentials := map[string]string{}
+	nodePublishSecrets := map[string]string{}
 	if csiSource.NodePublishSecretRef != nil {
-		nodePublishCredentials = getCredentialsFromSecret(c.k8s, csiSource.NodePublishSecretRef)
+		nodePublishSecrets = getCredentialsFromSecret(c.k8s, csiSource.NodePublishSecretRef)
 	}
 	err = csi.NodePublishVolume(
 		ctx,
@@ -191,7 +185,7 @@ func (c *csiMountMgr) SetUpAt(dir string, fsGroup *int64) error {
 		accessMode,
 		c.volumeInfo,
 		attribs,
-		nodePublishCredentials,
+		nodePublishSecrets,
 		fsType,
 	)
 
@@ -239,7 +233,6 @@ func (c *csiMountMgr) TearDownAt(dir string) error {
 		return nil
 	}
 
-	csiSource, err := getCSISourceFromSpec(c.spec)
 	if err != nil {
 		glog.Error(log("mounter.TearDownAt failed to get CSI persistent source: %v", err))
 		return err
@@ -268,17 +261,7 @@ func (c *csiMountMgr) TearDownAt(dir string) error {
 
 	csi := c.csiClient
 
-	// TODO make all assertion calls private within the client itself
-	if err := csi.AssertSupportedVersion(ctx, csiVersion); err != nil {
-		glog.Errorf(log("mounter.TearDownAt failed to assert version: %v", err))
-		return err
-	}
-
-	nodeUnpublishCredentials := map[string]string{}
-	if csiSource.NodePublishSecretRef != nil {
-		nodeUnpublishCredentials = getCredentialsFromSecret(c.k8s, csiSource.NodePublishSecretRef)
-	}
-	if err := csi.NodeUnpublishVolume(ctx, volID, dir, nodeUnpublishCredentials); err != nil {
+	if err := csi.NodeUnpublishVolume(ctx, volID, dir); err != nil {
 		glog.Errorf(log("mounter.TearDownAt failed: %v", err))
 		return err
 	}

pkg/volume/csi/csi_plugin.go

@@ -21,7 +21,6 @@ import (
 	"fmt"
 	"time"
 
-	csipb "github.com/container-storage-interface/spec/lib/go/csi"
 	"github.com/golang/glog"
 	api "k8s.io/api/core/v1"
 	meta "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -43,11 +42,6 @@ const (
 	volDataFileName = "vol_data.json"
 )
 
-var (
-	// csiVersion supported csi version
-	csiVersion = &csipb.Version{Major: 0, Minor: 2, Patch: 0}
-)
-
 type csiPlugin struct {
 	host volume.VolumeHost
 }

pkg/volume/csi/fake/BUILD

@@ -6,7 +6,7 @@ go_library(
     importpath = "k8s.io/kubernetes/pkg/volume/csi/fake",
     visibility = ["//visibility:public"],
     deps = [
-        "//vendor/github.com/container-storage-interface/spec/lib/go/csi:go_default_library",
+        "//vendor/github.com/container-storage-interface/spec/lib/go/csi/v0:go_default_library",
         "//vendor/golang.org/x/net/context:go_default_library",
         "//vendor/google.golang.org/grpc:go_default_library",
     ],

pkg/volume/csi/fake/fake_client.go

@@ -23,7 +23,7 @@ import (
 
 	"google.golang.org/grpc"
 
-	csipb "github.com/container-storage-interface/spec/lib/go/csi"
+	csipb "github.com/container-storage-interface/spec/lib/go/csi/v0"
 	grpctx "golang.org/x/net/context"
 )
 
@@ -42,26 +42,6 @@ func (f *IdentityClient) SetNextError(err error) {
 	f.nextErr = err
 }
 
-// GetSupportedVersions returns supported version
-func (f *IdentityClient) GetSupportedVersions(ctx grpctx.Context, req *csipb.GetSupportedVersionsRequest, opts ...grpc.CallOption) (*csipb.GetSupportedVersionsResponse, error) {
-	// short circuit with an error
-	if f.nextErr != nil {
-		return nil, f.nextErr
-	}
-
-	rsp := &csipb.GetSupportedVersionsResponse{
-		SupportedVersions: []*csipb.Version{
-			{Major: 0, Minor: 0, Patch: 1},
-			{Major: 0, Minor: 1, Patch: 0},
-			{Major: 0, Minor: 2, Patch: 0},
-			{Major: 1, Minor: 0, Patch: 0},
-			{Major: 1, Minor: 0, Patch: 1},
-			{Major: 1, Minor: 1, Patch: 1},
-		},
-	}
-	return rsp, nil
-}
-
 // GetPluginInfo returns plugin info
 func (f *IdentityClient) GetPluginInfo(ctx context.Context, in *csipb.GetPluginInfoRequest, opts ...grpc.CallOption) (*csipb.GetPluginInfoResponse, error) {
 	return nil, nil