mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-10 00:10:20 +00:00
4d466843b9
This commit makes use of crush location labels from node labels to supply `crush_location` and `read_from_replica=localize` options during mount. Using these options, cephfs will be able to redirect reads to the closest OSD, improving performance. Signed-off-by: Praveen M <m.praveen@ibm.com>
109 lines
2.7 KiB
Go
109 lines
2.7 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 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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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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// NodeLabels stores the node labels
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NodeLabels map[string]string
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// CLIReadAffinityOptions contains map options passed through command line to enable read affinity.
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CLIReadAffinityOptions string
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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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