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cephfs/nodeserver: read credentials from Secret

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This commit is contained in:
gman 2018-03-20 16:14:14 +01:00
parent 436bb54262
commit aa4130865c
2 changed files with 67 additions and 37 deletions
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94
pkg/cephfs/nodeserver.go
View File

@ -18,12 +18,13 @@ package cephfs
import (
"context"
"fmt"
"github.com/golang/glog"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/container-storage-interface/spec/lib/go/csi/v0"
"github.com/kubernetes-csi/drivers/pkg/csi-common"
"k8s.io/kubernetes/pkg/util/keymutex"
)
@ -35,10 +36,6 @@ type nodeServer struct {
var nsMtx = keymutex.NewKeyMutex()
func validateNodePublishVolumeRequest(req *csi.NodePublishVolumeRequest) error {
if req.GetVersion() == nil {
return status.Error(codes.InvalidArgument, "Version missing in request")
}
if req.GetVolumeCapability() == nil {
return status.Error(codes.InvalidArgument, "Volume capability missing in request")
}
@ -51,24 +48,10 @@ func validateNodePublishVolumeRequest(req *csi.NodePublishVolumeRequest) error {
return status.Error(codes.InvalidArgument, "Target path missing in request")
}
attrs := req.GetVolumeAttributes()
if _, ok := attrs["path"]; !ok {
return status.Error(codes.InvalidArgument, "Missing path attribute")
}
if _, ok := attrs["user"]; !ok {
return status.Error(codes.InvalidArgument, "Missing user attribute")
}
return nil
}
func validateNodeUnpublishVolumeRequest(req *csi.NodeUnpublishVolumeRequest) error {
if req.GetVersion() == nil {
return status.Error(codes.InvalidArgument, "Version missing in request")
}
if req.GetVolumeId() == "" {
return status.Error(codes.InvalidArgument, "Volume ID missing in request")
}
@ -87,19 +70,46 @@ func (ns *nodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublis
// Configuration
volId := req.GetVolumeId()
targetPath := req.GetTargetPath()
if err := tryLock(volId, nsMtx, "NodeServer"); err != nil {
return nil, err
volOptions, err := newVolumeOptions(req.GetVolumeAttributes())
if err != nil {
glog.Errorf("error reading volume options: %v", err)
return nil, status.Error(codes.InvalidArgument, err.Error())
}
defer nsMtx.UnlockKey(volId)
if err := createMountPoint(targetPath); err != nil {
/*
volId := req.GetVolumeId()
if err = tryLock(volId, nsMtx, "NodeServer"); err != nil {
return nil, err
}
defer nsMtx.UnlockKey(volId)
*/
if err = createMountPoint(targetPath); err != nil {
glog.Errorf("failed to create mount point at %s: %v", targetPath, err)
return nil, status.Error(codes.Internal, err.Error())
}
key, err := getKeyFromCredentials(req.GetNodePublishSecrets())
if err != nil {
glog.Error(err)
return nil, status.Error(codes.InvalidArgument, err.Error())
}
keyring := cephKeyringData{
User: volOptions.User,
Key: key,
RootPath: volOptions.RootPath,
ReadOnly: req.GetReadonly(),
}
if err = keyring.writeToFile(); err != nil {
msg := fmt.Sprintf("couldn't write ceph keyring for user %s: %v", volOptions.User, err)
glog.Error(msg)
return nil, status.Error(codes.Internal, msg)
}
// Check if the volume is already mounted
isMnt, err := isMountPoint(targetPath)
@ -115,17 +125,14 @@ func (ns *nodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublis
// It's not, exec ceph-fuse now
// TODO honor req.GetReadOnly()
attrs := req.GetVolumeAttributes()
vol := volume{Root: attrs["path"], User: attrs["user"]}
vol := volume{RootPath: volOptions.RootPath, User: volOptions.User}
if err := vol.mount(targetPath); err != nil {
glog.Errorf("mounting volume %s to %s failed: %v", vol.Root, targetPath, err)
glog.Errorf("mounting volume %s to %s failed: %v", vol.RootPath, targetPath, err)
return nil, status.Error(codes.Internal, err.Error())
}
glog.V(4).Infof("cephfs: volume %s successfuly mounted to %s", vol.Root, targetPath)
glog.V(4).Infof("cephfs: volume %s successfuly mounted to %s", vol.RootPath, targetPath)
return &csi.NodePublishVolumeResponse{}, nil
}
@ -135,12 +142,13 @@ func (ns *nodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpu
return nil, err
}
volId := req.GetVolumeId()
if err := tryLock(volId, nsMtx, "NodeServer"); err != nil {
return nil, err
}
defer nsMtx.UnlockKey(volId)
/*
volId := req.GetVolumeId()
if err := tryLock(volId, nsMtx, "NodeServer"); err != nil {
return nil, err
}
defer nsMtx.UnlockKey(volId)
*/
if err := unmountVolume(req.GetTargetPath()); err != nil {
return nil, status.Error(codes.Internal, err.Error())
@ -148,3 +156,17 @@ func (ns *nodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpu
return &csi.NodeUnpublishVolumeResponse{}, nil
}
func (ns *nodeServer) NodeStageVolume(
ctx context.Context,
req *csi.NodeStageVolumeRequest) (
*csi.NodeStageVolumeResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (ns *nodeServer) NodeUnstageVolume(
ctx context.Context,
req *csi.NodeUnstageVolumeRequest) (
*csi.NodeUnstageVolumeResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}

10
pkg/cephfs/util.go
View File

@ -17,7 +17,7 @@ limitations under the License.
package cephfs
import (
// "fmt"
"fmt"
"os/exec"
"google.golang.org/grpc/codes"
@ -54,3 +54,11 @@ func tryLock(id string, mtx keymutex.KeyMutex, name string) error {
return nil
}
func getKeyFromCredentials(creds map[string]string) (string, error) {
if key, ok := creds["key"]; ok {
return key, nil
} else {
return "", fmt.Errorf("missing key in credentials")
}
}