mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-18 04:10:22 +00:00
120 lines
3.7 KiB
Go
120 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 hostpath
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import (
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"fmt"
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"os"
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"github.com/golang/glog"
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"github.com/pborman/uuid"
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"golang.org/x/net/context"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"github.com/container-storage-interface/spec/lib/go/csi"
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"github.com/kubernetes-csi/drivers/pkg/csi-common"
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)
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const (
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deviceID = "deviceID"
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provisionRoot = "/tmp/"
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)
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type controllerServer struct {
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*csicommon.DefaultControllerServer
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}
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func GetVersionString(ver *csi.Version) string {
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return fmt.Sprintf("%d.%d.%d", ver.Major, ver.Minor, ver.Patch)
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}
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func (cs *controllerServer) CreateVolume(ctx context.Context, req *csi.CreateVolumeRequest) (*csi.CreateVolumeResponse, error) {
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// Check arguments
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if req.GetVersion() == nil {
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return nil, status.Error(codes.InvalidArgument, "Version missing in request")
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}
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if len(req.GetName()) == 0 {
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return nil, status.Error(codes.InvalidArgument, "Name missing in request")
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}
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if req.GetVolumeCapabilities() == nil {
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return nil, status.Error(codes.InvalidArgument, "Volume Capabilities missing in request")
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}
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if err := cs.Driver.ValidateControllerServiceRequest(req.Version, csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME); err != nil {
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glog.V(3).Infof("invalid create volume req: %v", req)
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return nil, err
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}
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volumeId := uuid.NewUUID().String()
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path := provisionRoot + volumeId
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err := os.MkdirAll(path, 0777)
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if err != nil {
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glog.V(3).Infof("failed to create volume: %v", err)
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return nil, err
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}
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glog.V(4).Infof("create volume %s", path)
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return &csi.CreateVolumeResponse{
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Volume: &csi.Volume{
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Id: volumeId,
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},
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}, nil
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}
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func (cs *controllerServer) DeleteVolume(ctx context.Context, req *csi.DeleteVolumeRequest) (*csi.DeleteVolumeResponse, error) {
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// Check arguments
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if req.GetVersion() == nil {
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return nil, status.Error(codes.InvalidArgument, "Version 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 err := cs.Driver.ValidateControllerServiceRequest(req.Version, csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME); err != nil {
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glog.V(3).Infof("invalid delete volume req: %v", req)
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return nil, err
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}
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volumeId := req.VolumeId
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glog.V(4).Infof("deleting volume %s", volumeId)
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path := provisionRoot + volumeId
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os.RemoveAll(path)
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return &csi.DeleteVolumeResponse{}, nil
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}
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func (cs *controllerServer) ValidateVolumeCapabilities(ctx context.Context, req *csi.ValidateVolumeCapabilitiesRequest) (*csi.ValidateVolumeCapabilitiesResponse, error) {
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// Check arguments
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if req.GetVersion() == nil {
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return nil, status.Error(codes.InvalidArgument, "Version 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 req.GetVolumeCapabilities() == nil {
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return nil, status.Error(codes.InvalidArgument, "Volume capabilities missing in request")
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}
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for _, cap := range req.VolumeCapabilities {
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if cap.GetAccessMode().GetMode() != csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER {
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return &csi.ValidateVolumeCapabilitiesResponse{Supported: false, Message: ""}, nil
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}
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}
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return &csi.ValidateVolumeCapabilitiesResponse{Supported: true, Message: ""}, nil
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}
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