128 lines
3.7 KiB
Go
128 lines
3.7 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package s3
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import (
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"os"
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"github.com/golang/glog"
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"golang.org/x/net/context"
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"github.com/container-storage-interface/spec/lib/go/csi/v0"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"k8s.io/kubernetes/pkg/util/mount"
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"github.com/kubernetes-csi/drivers/pkg/csi-common"
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)
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type nodeServer struct {
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*csicommon.DefaultNodeServer
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*s3
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}
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func (ns *nodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolumeRequest) (*csi.NodePublishVolumeResponse, error) {
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// Check arguments
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if req.GetVolumeCapability() == nil {
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return nil, status.Error(codes.InvalidArgument, "Volume capability missing in request")
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}
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if len(req.GetVolumeId()) == 0 {
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return nil, status.Error(codes.InvalidArgument, "Volume ID missing in request")
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}
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if len(req.GetTargetPath()) == 0 {
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return nil, status.Error(codes.InvalidArgument, "Target path missing in request")
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}
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targetPath := req.GetTargetPath()
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notMnt, err := mount.New("").IsLikelyNotMountPoint(targetPath)
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if err != nil {
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if os.IsNotExist(err) {
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if err = os.MkdirAll(targetPath, 0750); err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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notMnt = true
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} else {
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return nil, status.Error(codes.Internal, err.Error())
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}
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}
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if !notMnt {
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return &csi.NodePublishVolumeResponse{}, nil
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}
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deviceID := ""
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if req.GetPublishInfo() != nil {
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deviceID = req.GetPublishInfo()[deviceID]
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}
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readOnly := req.GetReadonly()
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volumeID := req.GetVolumeId()
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attrib := req.GetVolumeAttributes()
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mountFlags := req.GetVolumeCapability().GetMount().GetMountFlags()
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glog.V(4).Infof("target %v\ndevice %v\nreadonly %v\nvolumeId %v\nattributes %v\nmountflags %v\n",
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targetPath, deviceID, readOnly, volumeID, attrib, mountFlags)
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mounter, err := newMounter(volumeID, ns.s3.cfg)
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if err != nil {
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return nil, err
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}
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if err := mounter.Mount(targetPath); err != nil {
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return nil, err
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}
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glog.V(4).Infof("s3: bucket %s successfuly mounted to %s", volumeID, targetPath)
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return &csi.NodePublishVolumeResponse{}, nil
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}
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func (ns *nodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpublishVolumeRequest) (*csi.NodeUnpublishVolumeResponse, error) {
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// Check arguments
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if len(req.GetVolumeId()) == 0 {
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return nil, status.Error(codes.InvalidArgument, "Volume ID missing in request")
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}
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if len(req.GetTargetPath()) == 0 {
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return nil, status.Error(codes.InvalidArgument, "Target path missing in request")
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}
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mounter, err := newMounter(req.GetVolumeId(), ns.s3.cfg)
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if err != nil {
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return nil, err
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}
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if err := mounter.Unmount(req.GetTargetPath()); err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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glog.V(4).Infof("s3: bucket %s has been unmounted.", req.GetVolumeId())
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return &csi.NodeUnpublishVolumeResponse{}, nil
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}
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func (ns *nodeServer) NodeStageVolume(
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ctx context.Context,
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req *csi.NodeStageVolumeRequest) (
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*csi.NodeStageVolumeResponse, error) {
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return nil, status.Error(codes.Unimplemented, "")
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}
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func (ns *nodeServer) NodeUnstageVolume(
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ctx context.Context,
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req *csi.NodeUnstageVolumeRequest) (
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*csi.NodeUnstageVolumeResponse, error) {
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return nil, status.Error(codes.Unimplemented, "")
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}
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