mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-09-19 15:09:56 +00:00
3d3c029471
This commit adds nfs nodeserver capable of mounting nfs volumes, even with pod networking using NSenter design similar to rbd and cephfs. NodePublish, NodeUnpublish, NodeGetVolumeStats and NodeGetCapabilities have been implemented. The nodeserver implementation has been inspired from https://github.com/kubernetes-csi/csi-driver-nfs, which was previously used for mounted cephcsi exported nfs volumes. The current implementation is also backward compatible for the previously created PVCs. Signed-off-by: Rakshith R <rar@redhat.com>
115 lines
2.8 KiB
Go
115 lines
2.8 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 csicommon
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import (
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"context"
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"github.com/ceph/ceph-csi/internal/util/log"
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"github.com/container-storage-interface/spec/lib/go/csi"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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mount "k8s.io/mount-utils"
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)
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// DefaultNodeServer stores driver object.
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type DefaultNodeServer struct {
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csi.UnimplementedNodeServer
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Driver *CSIDriver
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Type string
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Mounter mount.Interface
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}
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// NodeExpandVolume returns unimplemented response.
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func (ns *DefaultNodeServer) NodeExpandVolume(
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ctx context.Context,
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req *csi.NodeExpandVolumeRequest,
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) (*csi.NodeExpandVolumeResponse, error) {
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return nil, status.Error(codes.Unimplemented, "")
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}
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// NodeGetInfo returns node ID.
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func (ns *DefaultNodeServer) NodeGetInfo(
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ctx context.Context,
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req *csi.NodeGetInfoRequest,
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) (*csi.NodeGetInfoResponse, error) {
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log.TraceLog(ctx, "Using default NodeGetInfo")
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csiTopology := &csi.Topology{
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Segments: ns.Driver.topology,
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}
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return &csi.NodeGetInfoResponse{
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NodeId: ns.Driver.nodeID,
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AccessibleTopology: csiTopology,
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}, nil
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}
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// NodeGetCapabilities returns RPC unknown capability.
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func (ns *DefaultNodeServer) NodeGetCapabilities(
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ctx context.Context,
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req *csi.NodeGetCapabilitiesRequest,
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) (*csi.NodeGetCapabilitiesResponse, error) {
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log.TraceLog(ctx, "Using default NodeGetCapabilities")
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return &csi.NodeGetCapabilitiesResponse{
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Capabilities: []*csi.NodeServiceCapability{
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{
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Type: &csi.NodeServiceCapability_Rpc{
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Rpc: &csi.NodeServiceCapability_RPC{
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Type: csi.NodeServiceCapability_RPC_UNKNOWN,
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},
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},
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},
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},
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}, nil
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}
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// ConstructMountOptions returns only unique mount options in slice.
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func ConstructMountOptions(mountOptions []string, volCap *csi.VolumeCapability) []string {
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if m := volCap.GetMount(); m != nil {
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hasOption := func(options []string, opt string) bool {
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for _, o := range options {
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if o == opt {
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return true
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}
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}
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return false
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}
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for _, f := range m.MountFlags {
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if !hasOption(mountOptions, f) {
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mountOptions = append(mountOptions, f)
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}
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}
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}
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return mountOptions
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}
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// MountOptionContains checks the opt is present in mountOptions.
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func MountOptionContains(mountOptions []string, opt string) bool {
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for _, mnt := range mountOptions {
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if mnt == opt {
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return true
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}
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}
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return false
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}
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