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Fix gometalinter issues

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Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
This commit is contained in:
Madhu Rajanna
2019-01-29 01:25:10 +05:30
parent 7a0c233c27
commit ca2e475296
9 changed files with 214 additions and 136 deletions
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113
pkg/rbd/nodeserver.go
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@ -67,47 +67,16 @@ func (ns *NodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublis
}
}()
var volName string
isBlock := req.GetVolumeCapability().GetBlock() != nil
if isBlock {
// Get volName from targetPath
s := strings.Split(targetPath, "/")
volName = s[len(s)-1]
} else {
// Get volName from targetPath
if !strings.HasSuffix(targetPath, "/mount") {
return nil, fmt.Errorf("rbd: malformed the value of target path: %s", targetPath)
}
s := strings.Split(strings.TrimSuffix(targetPath, "/mount"), "/")
volName = s[len(s)-1]
volName, err := ns.getVolumeName(req)
if err != nil {
return nil, err
}
isBlock := req.GetVolumeCapability().GetBlock() != nil
// Check if that target path exists properly
notMnt, err := ns.mounter.IsNotMountPoint(targetPath)
notMnt, err := ns.createTargetPath(targetPath, isBlock)
if err != nil {
if os.IsNotExist(err) {
if isBlock {
// create an empty file
targetPathFile, e := os.OpenFile(targetPath, os.O_CREATE|os.O_RDWR, 0750)
if e != nil {
glog.V(4).Infof("Failed to create targetPath:%s with error: %v", targetPath, err)
return nil, status.Error(codes.Internal, e.Error())
}
if err = targetPathFile.Close(); err != nil {
glog.V(4).Infof("Failed to close targetPath:%s with error: %v", targetPath, err)
return nil, status.Error(codes.Internal, err.Error())
}
} else {
// Create a directory
if err = os.MkdirAll(targetPath, 0750); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
}
notMnt = true
} else {
return nil, status.Error(codes.Internal, err.Error())
}
return nil, err
}
if !notMnt {
@ -125,11 +94,41 @@ func (ns *NodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublis
}
glog.V(4).Infof("rbd image: %s/%s was successfully mapped at %s\n", req.GetVolumeId(), volOptions.Pool, devicePath)
// Publish Path
err = ns.mountVolume(req, devicePath)
if err != nil {
return nil, err
}
return &csi.NodePublishVolumeResponse{}, nil
}
func (ns *NodeServer) getVolumeName(req *csi.NodePublishVolumeRequest) (string, error) {
var volName string
isBlock := req.GetVolumeCapability().GetBlock() != nil
targetPath := req.GetTargetPath()
if isBlock {
// Get volName from targetPath
s := strings.Split(targetPath, "/")
volName = s[len(s)-1]
} else {
// Get volName from targetPath
if !strings.HasSuffix(targetPath, "/mount") {
return "", fmt.Errorf("rbd: malformed the value of target path: %s", targetPath)
}
s := strings.Split(strings.TrimSuffix(targetPath, "/mount"), "/")
volName = s[len(s)-1]
}
return volName, nil
}
func (ns *NodeServer) mountVolume(req *csi.NodePublishVolumeRequest, devicePath string) error {
// Publish Path
fsType := req.GetVolumeCapability().GetMount().GetFsType()
readOnly := req.GetReadonly()
attrib := req.GetVolumeContext()
mountFlags := req.GetVolumeCapability().GetMount().GetMountFlags()
isBlock := req.GetVolumeCapability().GetBlock() != nil
targetPath := req.GetTargetPath()
glog.V(4).Infof("target %v\nisBlock %v\nfstype %v\ndevice %v\nreadonly %v\nattributes %v\n mountflags %v\n",
targetPath, isBlock, fsType, devicePath, readOnly, attrib, mountFlags)
@ -138,7 +137,7 @@ func (ns *NodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublis
if isBlock {
options := []string{"bind"}
if err := diskMounter.Mount(devicePath, targetPath, fsType, options); err != nil {
return nil, err
return err
}
} else {
options := []string{}
@ -147,11 +146,42 @@ func (ns *NodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublis
}
if err := diskMounter.FormatAndMount(devicePath, targetPath, fsType, options); err != nil {
return nil, err
return err
}
}
return nil
}
func (ns *NodeServer) createTargetPath(targetPath string, isBlock bool) (bool, error) {
// Check if that target path exists properly
notMnt, err := ns.mounter.IsNotMountPoint(targetPath)
if err != nil {
if os.IsNotExist(err) {
if isBlock {
// create an empty file
// #nosec
targetPathFile, e := os.OpenFile(targetPath, os.O_CREATE|os.O_RDWR, 0750)
if e != nil {
glog.V(4).Infof("Failed to create targetPath:%s with error: %v", targetPath, err)
return notMnt, status.Error(codes.Internal, e.Error())
}
if err = targetPathFile.Close(); err != nil {
glog.V(4).Infof("Failed to close targetPath:%s with error: %v", targetPath, err)
return notMnt, status.Error(codes.Internal, err.Error())
}
} else {
// Create a directory
if err = os.MkdirAll(targetPath, 0750); err != nil {
return notMnt, status.Error(codes.Internal, err.Error())
}
}
notMnt = true
} else {
return false, status.Error(codes.Internal, err.Error())
}
}
return notMnt, err
return &csi.NodePublishVolumeResponse{}, nil
}
// NodeUnpublishVolume unmounts the volume from the target path
@ -230,6 +260,7 @@ func (ns *NodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpu
}
func resolveBindMountedBlockDevice(mountPath string) (string, error) {
// #nosec
cmd := exec.Command("findmnt", "-n", "-o", "SOURCE", "--first-only", "--target", mountPath)
out, err := cmd.CombinedOutput()
if err != nil {
@ -244,7 +275,7 @@ func parseFindMntResolveSource(out string) (string, error) {
// cut trailing newline
out = strings.TrimSuffix(out, "\n")
// Check if out is a mounted device
reMnt := regexp.MustCompile("^(/[^/]+(?:/[^/]*)*)$")
reMnt := regexp.MustCompile(`^(/[^/]+(?:/[^/]*)*)$`)
if match := reMnt.FindStringSubmatch(out); match != nil {
return match[1], nil
}