110 lines
3.6 KiB
Go
110 lines
3.6 KiB
Go
/*
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Copyright 2019 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 smb
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import (
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"fmt"
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"github.com/container-storage-interface/spec/lib/go/csi"
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"k8s.io/klog/v2"
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mount "k8s.io/mount-utils"
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csicommon "github.com/kubernetes-csi/csi-driver-smb/pkg/csi-common"
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"github.com/kubernetes-csi/csi-driver-smb/pkg/mounter"
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)
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const (
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DefaultDriverName = "smb.csi.k8s.io"
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paramSource = "source"
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)
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// Driver implements all interfaces of CSI drivers
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type Driver struct {
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csicommon.CSIDriver
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mounter *mount.SafeFormatAndMount
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// A map storing all volumes with ongoing operations so that additional operations
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// for that same volume (as defined by VolumeID) return an Aborted error
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volumeLocks *volumeLocks
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workingMountDir string
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enableGetVolumeStats bool
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}
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// NewDriver Creates a NewCSIDriver object. Assumes vendor version is equal to driver version &
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// does not support optional driver plugin info manifest field. Refer to CSI spec for more details.
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func NewDriver(nodeID, driverName string, enableGetVolumeStats bool) *Driver {
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driver := Driver{}
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driver.Name = driverName
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driver.Version = driverVersion
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driver.NodeID = nodeID
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driver.enableGetVolumeStats = enableGetVolumeStats
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driver.volumeLocks = newVolumeLocks()
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return &driver
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}
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// Run driver initialization
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func (d *Driver) Run(endpoint, kubeconfig string, testMode bool) {
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versionMeta, err := GetVersionYAML(d.Name)
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if err != nil {
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klog.Fatalf("%v", err)
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}
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klog.Infof("\nDRIVER INFORMATION:\n-------------------\n%s\n\nStreaming logs below:", versionMeta)
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d.mounter, err = mounter.NewSafeMounter()
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if err != nil {
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klog.Fatalf("Failed to get safe mounter. Error: %v", err)
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}
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// Initialize default library driver
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d.AddControllerServiceCapabilities(
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[]csi.ControllerServiceCapability_RPC_Type{
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csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
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csi.ControllerServiceCapability_RPC_SINGLE_NODE_MULTI_WRITER,
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})
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d.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{
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csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
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csi.VolumeCapability_AccessMode_SINGLE_NODE_READER_ONLY,
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csi.VolumeCapability_AccessMode_SINGLE_NODE_SINGLE_WRITER,
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csi.VolumeCapability_AccessMode_SINGLE_NODE_MULTI_WRITER,
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csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY,
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csi.VolumeCapability_AccessMode_MULTI_NODE_SINGLE_WRITER,
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csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
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})
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nodeCap := []csi.NodeServiceCapability_RPC_Type{
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csi.NodeServiceCapability_RPC_STAGE_UNSTAGE_VOLUME,
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csi.NodeServiceCapability_RPC_SINGLE_NODE_MULTI_WRITER,
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csi.NodeServiceCapability_RPC_VOLUME_MOUNT_GROUP,
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}
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if d.enableGetVolumeStats {
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nodeCap = append(nodeCap, csi.NodeServiceCapability_RPC_GET_VOLUME_STATS)
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}
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d.AddNodeServiceCapabilities(nodeCap)
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s := csicommon.NewNonBlockingGRPCServer()
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// Driver d act as IdentityServer, ControllerServer and NodeServer
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s.Start(endpoint, d, d, d, testMode)
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s.Wait()
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}
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func IsCorruptedDir(dir string) bool {
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_, pathErr := mount.PathExists(dir)
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fmt.Printf("IsCorruptedDir(%s) returned with error: %v", dir, pathErr)
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return pathErr != nil && mount.IsCorruptedMnt(pathErr)
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}
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