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package kvm
import (
"github.com/container-storage-interface/spec/lib/go/csi"
"golang.org/x/net/context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"k8s.io/klog"
)
var (
// controllerCaps 代表Controller Plugin支持的功能,可选类型见https://github.com/container-storage-interface/spec/blob/4731db0e0bc53238b93850f43ab05d9355df0fd9/lib/go/csi/csi.pb.go#L181:6
// 这里只实现Volume的创建/删除,附加/卸载
controllerCaps = []csi.ControllerServiceCapability_RPC_Type{
csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
csi.ControllerServiceCapability_RPC_PUBLISH_UNPUBLISH_VOLUME,
}
)
type ControllerServer struct{}
func NewControllerServer() *ControllerServer {
return &ControllerServer{}
}
// ControllerGetCapabilities 返回Controller Plugin支持的功能
func (cs *ControllerServer) ControllerGetCapabilities(ctx context.Context, req *csi.ControllerGetCapabilitiesRequest) (*csi.ControllerGetCapabilitiesResponse, error) {
klog.V(4).Infof("ControllerGetCapabilities: called with args %+v", *req)
var caps []*csi.ControllerServiceCapability
for _, cap := range controllerCaps {
c := &csi.ControllerServiceCapability{
Type: &csi.ControllerServiceCapability_Rpc{
Rpc: &csi.ControllerServiceCapability_RPC{
Type: cap,
},
},
}
caps = append(caps, c)
}
return &csi.ControllerGetCapabilitiesResponse{Capabilities: caps}, nil
}
// CreateVolume 创建
func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVolumeRequest) (*csi.CreateVolumeResponse, error) {
klog.V(4).Infof("CreateVolume: called with args %+v", *req)
// 这里先返回一个假数据,模拟我们创建出了一块id为"qcow-1234567"容量为20G的云盘
return &csi.CreateVolumeResponse{
Volume: &csi.Volume{
VolumeId: "qcow-1234567",
CapacityBytes: 20 * (1 << 30),
VolumeContext: req.GetParameters(),
},
}, nil
}
// DeleteVolume 删除
func (cs *ControllerServer) DeleteVolume(ctx context.Context, req *csi.DeleteVolumeRequest) (*csi.DeleteVolumeResponse, error) {
klog.V(4).Infof("DeleteVolume: called with args: %+v", *req)
return &csi.DeleteVolumeResponse{}, nil
}
// ControllerPublishVolume 附加
func (cs *ControllerServer) ControllerPublishVolume(ctx context.Context, req *csi.ControllerPublishVolumeRequest) (*csi.ControllerPublishVolumeResponse, error) {
klog.V(4).Infof("ControllerPublishVolume: called with args %+v", *req)
pvInfo := map[string]string{DevicePathKey: "/dev/sdb"}
return &csi.ControllerPublishVolumeResponse{PublishContext: pvInfo}, nil
}
// ControllerUnpublishVolume 卸载
func (cs *ControllerServer) ControllerUnpublishVolume(ctx context.Context, req *csi.ControllerUnpublishVolumeRequest) (*csi.ControllerUnpublishVolumeResponse, error) {
klog.V(4).Infof("ControllerUnpublishVolume: called with args %+v", *req)
return &csi.ControllerUnpublishVolumeResponse{}, nil
}
// TODO(xnile): implement this
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, "")
}
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, "")
}
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