remove csi-common dependencies

Author: mathu97

cmd/nfsplugin/main.go

@@ -65,6 +65,6 @@ func main() {
 }
 
 func handle() {
-	d := nfs.NewDriver(nodeID, endpoint)
+	d := nfs.NewNFSdriver(nodeID, endpoint)
 	d.Run()
 }

pkg/nfs/controllerserver.go

@@ -2,22 +2,66 @@ package nfs
 
 import (
 	"github.com/container-storage-interface/spec/lib/go/csi"
-	"github.com/kubernetes-csi/drivers/pkg/csi-common"
+	"github.com/golang/glog"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
 
 type ControllerServer struct {
-	*csicommon.DefaultControllerServer
+	Driver *nfsDriver
 }
 
-func (cs ControllerServer) ControllerExpandVolume(ctx context.Context, req *csi.ControllerExpandVolumeRequest) (*csi.ControllerExpandVolumeResponse, error) {
+func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVolumeRequest) (*csi.CreateVolumeResponse, error) {
 	return nil, status.Error(codes.Unimplemented, "")
 }
 
-func getControllerServer(csiDriver *csicommon.CSIDriver) ControllerServer {
-	return ControllerServer{
-		csicommon.NewDefaultControllerServer(csiDriver),
-	}
+func (cs *ControllerServer) DeleteVolume(ctx context.Context, req *csi.DeleteVolumeRequest) (*csi.DeleteVolumeResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+func (cs *ControllerServer) ControllerPublishVolume(ctx context.Context, req *csi.ControllerPublishVolumeRequest) (*csi.ControllerPublishVolumeResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+func (cs *ControllerServer) ControllerUnpublishVolume(ctx context.Context, req *csi.ControllerUnpublishVolumeRequest) (*csi.ControllerUnpublishVolumeResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+func (cs *ControllerServer) ValidateVolumeCapabilities(ctx context.Context, req *csi.ValidateVolumeCapabilitiesRequest) (*csi.ValidateVolumeCapabilitiesResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+func (cs *ControllerServer) ListVolumes(ctx context.Context, req *csi.ListVolumesRequest) (*csi.ListVolumesResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+func (cs *ControllerServer) GetCapacity(ctx context.Context, req *csi.GetCapacityRequest) (*csi.GetCapacityResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+// ControllerGetCapabilities implements the default GRPC callout.
+// Default supports all capabilities
+func (cs *ControllerServer) ControllerGetCapabilities(ctx context.Context, req *csi.ControllerGetCapabilitiesRequest) (*csi.ControllerGetCapabilitiesResponse, error) {
+	glog.V(5).Infof("Using default ControllerGetCapabilities")
+
+	return &csi.ControllerGetCapabilitiesResponse{
+		Capabilities: cs.Driver.cscap,
+	}, nil
+}
+
+func (cs *ControllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateSnapshotRequest) (*csi.CreateSnapshotResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+func (cs *ControllerServer) DeleteSnapshot(ctx context.Context, req *csi.DeleteSnapshotRequest) (*csi.DeleteSnapshotResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+func (cs *ControllerServer) ListSnapshots(ctx context.Context, req *csi.ListSnapshotsRequest) (*csi.ListSnapshotsResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
+func (cs *ControllerServer) ControllerExpandVolume(ctx context.Context, req *csi.ControllerExpandVolumeRequest) (*csi.ControllerExpandVolumeResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
 }

pkg/nfs/driver.go

@@ -0,0 +1,49 @@
+package nfs
+
+import (
+	"github.com/container-storage-interface/spec/lib/go/csi"
+	"github.com/golang/glog"
+	"golang.org/x/net/context"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type IdentityServer struct {
+	Driver *nfsDriver
+}
+
+func (ids *IdentityServer) GetPluginInfo(ctx context.Context, req *csi.GetPluginInfoRequest) (*csi.GetPluginInfoResponse, error) {
+	glog.V(5).Infof("Using default GetPluginInfo")
+
+	if ids.Driver.name == "" {
+		return nil, status.Error(codes.Unavailable, "Driver name not configured")
+	}
+
+	if ids.Driver.version == "" {
+		return nil, status.Error(codes.Unavailable, "Driver is missing version")
+	}
+
+	return &csi.GetPluginInfoResponse{
+		Name:          ids.Driver.name,
+		VendorVersion: ids.Driver.version,
+	}, nil
+}
+
+func (ids *IdentityServer) Probe(ctx context.Context, req *csi.ProbeRequest) (*csi.ProbeResponse, error) {
+	return &csi.ProbeResponse{}, nil
+}
+
+func (ids *IdentityServer) GetPluginCapabilities(ctx context.Context, req *csi.GetPluginCapabilitiesRequest) (*csi.GetPluginCapabilitiesResponse, error) {
+	glog.V(5).Infof("Using default capabilities")
+	return &csi.GetPluginCapabilitiesResponse{
+		Capabilities: []*csi.PluginCapability{
+			{
+				Type: &csi.PluginCapability_Service_{
+					Service: &csi.PluginCapability_Service{
+						Type: csi.PluginCapability_Service_CONTROLLER_SERVICE,
+					},
+				},
+			},
+		},
+	}, nil
+}

pkg/nfs/indentityserver.go

@@ -0,0 +1,102 @@
+/*
+Copyright 2017 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.
+*/
+
+package nfs
+
+import (
+	"github.com/container-storage-interface/spec/lib/go/csi"
+	"github.com/golang/glog"
+)
+
+type nfsDriver struct {
+	name    string
+	nodeID  string
+	version string
+
+	endpoint string
+
+	//ids *identityServer
+	ns    *nodeServer
+	cap   []*csi.VolumeCapability_AccessMode
+	cscap []*csi.ControllerServiceCapability
+}
+
+const (
+	driverName = "csi-nfsplugin"
+)
+
+var (
+	version = "1.0.0-rc2"
+)
+
+func NewNFSdriver(nodeID, endpoint string) *nfsDriver {
+	glog.Infof("Driver: %v version: %v", driverName, version)
+
+	n := &nfsDriver{
+		name:     driverName,
+		version:  version,
+		nodeID:   nodeID,
+		endpoint: endpoint,
+	}
+
+	n.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER})
+	// NFS plugin does not support ControllerServiceCapability now.
+	// If support is added, it should set to appropriate
+	// ControllerServiceCapability RPC types.
+	n.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{csi.ControllerServiceCapability_RPC_UNKNOWN})
+
+	return n
+}
+
+func NewNodeServer(n *nfsDriver) *nodeServer {
+	return &nodeServer{
+		Driver: n,
+	}
+}
+
+func (n *nfsDriver) Run() {
+	s := NewNonBlockingGRPCServer()
+	s.Start(n.endpoint,
+		NewDefaultIdentityServer(n),
+		// NFS plugin has not implemented ControllerServer
+		// using default controllerserver.
+		NewControllerServer(n),
+		NewNodeServer(n))
+	s.Wait()
+}
+
+func (n *nfsDriver) AddVolumeCapabilityAccessModes(vc []csi.VolumeCapability_AccessMode_Mode) []*csi.VolumeCapability_AccessMode {
+	var vca []*csi.VolumeCapability_AccessMode
+	for _, c := range vc {
+		glog.Infof("Enabling volume access mode: %v", c.String())
+		vca = append(vca, &csi.VolumeCapability_AccessMode{Mode: c})
+	}
+	n.cap = vca
+	return vca
+}
+
+func (n *nfsDriver) AddControllerServiceCapabilities(cl []csi.ControllerServiceCapability_RPC_Type) {
+	var csc []*csi.ControllerServiceCapability
+
+	for _, c := range cl {
+		glog.Infof("Enabling controller service capability: %v", c.String())
+		csc = append(csc, NewControllerServiceCapability(c))
+	}
+
+	n.cscap = csc
+
+	return
+}

pkg/nfs/nfs.go

@@ -18,19 +18,19 @@ package nfs
 
 import (
 	"fmt"
+	"github.com/golang/glog"
 	"os"
 	"strings"
 
 	"github.com/container-storage-interface/spec/lib/go/csi"
-	"github.com/kubernetes-csi/drivers/pkg/csi-common"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 	"k8s.io/kubernetes/pkg/util/mount"
 )
 
 type nodeServer struct {
-	*csicommon.DefaultNodeServer
+	Driver *nfsDriver
 }
 
 func (ns *nodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolumeRequest) (*csi.NodePublishVolumeResponse, error) {
@@ -98,6 +98,34 @@ func (ns *nodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpu
 	return &csi.NodeUnpublishVolumeResponse{}, nil
 }
 
+func (ns *nodeServer) NodeGetInfo(ctx context.Context, req *csi.NodeGetInfoRequest) (*csi.NodeGetInfoResponse, error) {
+	glog.V(5).Infof("Using default NodeGetInfo")
+
+	return &csi.NodeGetInfoResponse{
+		NodeId: ns.Driver.nodeID,
+	}, nil
+}
+
+func (ns *nodeServer) NodeGetCapabilities(ctx context.Context, req *csi.NodeGetCapabilitiesRequest) (*csi.NodeGetCapabilitiesResponse, error) {
+	glog.V(5).Infof("Using default NodeGetCapabilities")
+
+	return &csi.NodeGetCapabilitiesResponse{
+		Capabilities: []*csi.NodeServiceCapability{
+			{
+				Type: &csi.NodeServiceCapability_Rpc{
+					Rpc: &csi.NodeServiceCapability_RPC{
+						Type: csi.NodeServiceCapability_RPC_UNKNOWN,
+					},
+				},
+			},
+		},
+	}, nil
+}
+
+func (ns *nodeServer) NodeGetVolumeStats(ctx context.Context, in *csi.NodeGetVolumeStatsRequest) (*csi.NodeGetVolumeStatsResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "")
+}
+
 func (ns *nodeServer) NodeUnstageVolume(ctx context.Context, req *csi.NodeUnstageVolumeRequest) (*csi.NodeUnstageVolumeResponse, error) {
 	return &csi.NodeUnstageVolumeResponse{}, nil
 }