128 lines
3.1 KiB
Go
128 lines
3.1 KiB
Go
/*
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Copyright 2020 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 nfs
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import (
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"fmt"
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"strings"
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"sync"
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"github.com/container-storage-interface/spec/lib/go/csi"
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"github.com/kubernetes-csi/csi-lib-utils/protosanitizer"
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"golang.org/x/net/context"
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"google.golang.org/grpc"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/klog/v2"
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)
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func NewDefaultIdentityServer(d *Driver) *IdentityServer {
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return &IdentityServer{
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Driver: d,
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}
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}
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func NewControllerServer(d *Driver) *ControllerServer {
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return &ControllerServer{
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Driver: d,
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}
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}
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func NewControllerServiceCapability(cap csi.ControllerServiceCapability_RPC_Type) *csi.ControllerServiceCapability {
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return &csi.ControllerServiceCapability{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: cap,
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},
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},
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}
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}
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func NewNodeServiceCapability(cap csi.NodeServiceCapability_RPC_Type) *csi.NodeServiceCapability {
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return &csi.NodeServiceCapability{
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Type: &csi.NodeServiceCapability_Rpc{
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Rpc: &csi.NodeServiceCapability_RPC{
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Type: cap,
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},
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},
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}
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}
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func ParseEndpoint(ep string) (string, string, error) {
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if strings.HasPrefix(strings.ToLower(ep), "unix://") || strings.HasPrefix(strings.ToLower(ep), "tcp://") {
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s := strings.SplitN(ep, "://", 2)
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if s[1] != "" {
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return s[0], s[1], nil
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}
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}
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return "", "", fmt.Errorf("Invalid endpoint: %v", ep)
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}
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func getLogLevel(method string) int32 {
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if method == "/csi.v1.Identity/Probe" ||
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method == "/csi.v1.Node/NodeGetCapabilities" ||
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method == "/csi.v1.Node/NodeGetVolumeStats" {
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return 8
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}
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return 2
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}
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func logGRPC(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
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level := klog.Level(getLogLevel(info.FullMethod))
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klog.V(level).Infof("GRPC call: %s", info.FullMethod)
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klog.V(level).Infof("GRPC request: %s", protosanitizer.StripSecrets(req))
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resp, err := handler(ctx, req)
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if err != nil {
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klog.Errorf("GRPC error: %v", err)
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} else {
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klog.V(level).Infof("GRPC response: %s", protosanitizer.StripSecrets(resp))
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}
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return resp, err
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}
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const (
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volumeOperationAlreadyExistsFmt = "An operation with the given Volume ID %s already exists"
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)
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type VolumeLocks struct {
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locks sets.String
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mux sync.Mutex
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}
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func NewVolumeLocks() *VolumeLocks {
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return &VolumeLocks{
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locks: sets.NewString(),
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}
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}
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func (vl *VolumeLocks) TryAcquire(volumeID string) bool {
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vl.mux.Lock()
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defer vl.mux.Unlock()
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if vl.locks.Has(volumeID) {
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return false
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}
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vl.locks.Insert(volumeID)
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return true
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}
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func (vl *VolumeLocks) Release(volumeID string) {
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vl.mux.Lock()
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defer vl.mux.Unlock()
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vl.locks.Delete(volumeID)
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}
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