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nodeserver.go
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/*
Copyright 2019 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package disk
import (
"context"
"crypto/sha256"
"errors"
"fmt"
"io/fs"
"os"
"path/filepath"
"regexp"
"strconv"
"strings"
"syscall"
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/kubernetes-sigs/alibaba-cloud-csi-driver/pkg/cloud/metadata"
"github.com/kubernetes-sigs/alibaba-cloud-csi-driver/pkg/common"
"github.com/kubernetes-sigs/alibaba-cloud-csi-driver/pkg/disk/sfdisk"
"github.com/kubernetes-sigs/alibaba-cloud-csi-driver/pkg/features"
"github.com/kubernetes-sigs/alibaba-cloud-csi-driver/pkg/utils"
utilsio "github.com/kubernetes-sigs/alibaba-cloud-csi-driver/pkg/utils/io"
"github.com/kubernetes-sigs/alibaba-cloud-csi-driver/pkg/utils/rund/directvolume"
"golang.org/x/sys/unix"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/client-go/kubernetes"
"k8s.io/klog/v2"
"k8s.io/mount-utils"
k8smount "k8s.io/mount-utils"
utilexec "k8s.io/utils/exec"
)
type nodeServer struct {
metadata metadata.MetadataProvider
mounter utils.Mounter
kataBMIOType MachineType
k8smounter k8smount.Interface
podCGroup *utils.PodCGroup
clientSet *kubernetes.Clientset
ad DiskAttachDetach
locks *utils.VolumeLocks
common.GenericNodeServer
}
// Disk status returned in ecs.DescribeDisks
const (
DiskStatusInuse = "In_use"
DiskStatusAttaching = "Attaching"
DiskStatusDetaching = "Detaching"
DiskStatusAvailable = "Available"
)
const (
// DiskStatusAttached disk attached status
DiskStatusAttached = "attached"
// DiskStatusDetached disk detached status
DiskStatusDetached = "detached"
// SharedEnable tag
SharedEnable = "shared"
// SysConfigTag tag
SysConfigTag = "sysConfig"
// SysConfigTag tag
OmitFilesystemCheck = "omitfsck"
// MkfsOptions tag
MkfsOptions = "mkfsOptions"
// DiskAttachedKey attached key
DiskAttachedKey = "k8s.aliyun.com"
// DiskAttachedValue attached value
DiskAttachedValue = "true"
// VolumeDir volume dir
VolumeDir = "/host/etc/kubernetes/volumes/disk/"
// RundSocketDir dir
RundSocketDir = "/host/etc/kubernetes/volumes/rund/"
// VolumeDirRemove volume dir remove
VolumeDirRemove = "/host/etc/kubernetes/volumes/disk/remove"
// InputOutputErr tag
InputOutputErr = "input/output error"
// CreateDiskARN ARN parameter of the CreateDisk interface
CreateDiskARN = "alibabacloud.com/createdisk-arn"
// PVC annotation key of KMS key ID, override the storage class parameter kmsKeyId
KMSKeyID = "alibabacloud.com/kms-key-id"
// DefaultMaxVolumesPerNode define default max ebs one node
DefaultMaxVolumesPerNode = 15
// NOUUID is xfs fs mount opts
NOUUID = "nouuid"
// NodeMultiZoneEnable Enable node multi-zone mode
NodeMultiZoneEnable = "NODE_MULTI_ZONE_ENABLE"
// RundVolumeType specific which volume type is passed to rund
rundBlockVolumeType = "block"
// BDFTypeBus defines bdf bus type
BDFTypeBus = "pci"
// DFBusTypeBus defines df bus type
DFBusTypeBus = "dragonfly"
// DFBusTypeVFIO defines df bus vfio driver type
DFBusTypeVFIO = "vfio-dfbus"
// DFBusTypeVIRTIO defines df bus virtio driver type
DFBusTypeVIRTIO = "dfbus-mmio"
// PCITypeVFIO defines pci bus vfio driver type
PCITypeVFIO = "vfio-pci"
// PCITypeVIRTIO defines pci bus virtio driver type
PCITypeVIRTIO = "virtio-pci"
// PCITypeVIRTIO defines pci bus nvme driver type
PCITypeNVME = "nvme"
)
var (
// BLOCKVOLUMEPREFIX block volume mount prefix
BLOCKVOLUMEPREFIX = filepath.Join(utils.KubeletRootDir, "/plugins/kubernetes.io/csi/volumeDevices/publish")
// DiskXattrName xattr is applied on the block device file to indicate that it is managed by the CSI driver.
// Value is the disk ID.
// Linux only support trusted namespace xattr in tmpfs before kernel v6.6,
// but setting trusted xaattr requires CAP_SYS_ADMIN capability, we may use user namespace instead in unit tests.
DiskXattrName = "trusted.csi-managed-disk"
// BDFTypeDevice defines the regexp of bdf number
BDFTypeDevice = regexp.MustCompile(`^[0-9a-fA-F]{4}:[0-9a-fA-F]{2}:[0-9a-fA-F]{2}`)
// DFBusTypeDevice defines the regexp of dfnumber
DFBusTypeDevice = regexp.MustCompile(`^dfvirtio.*`)
vfioDrivers = sets.New[string](DFBusTypeVFIO, PCITypeVFIO)
defaultDrivers = sets.New[string](PCITypeNVME, PCITypeVIRTIO, DFBusTypeVIRTIO)
)
// QueryResponse response struct for query server
type QueryResponse struct {
Device string `json:"device"`
VolumeType string `json:"volumeType"`
Identity string `json:"identity"`
MountFile string `json:"mountfile"`
Runtime string `json:"runtime"`
}
func parseVolumeCountEnv() (int, error) {
volumeNum := os.Getenv("MAX_VOLUMES_PERNODE")
if volumeNum != "" {
num, err := strconv.Atoi(volumeNum)
if err != nil {
return 0, fmt.Errorf("MAX_VOLUMES_PERNODE must be int, but get: %s", volumeNum)
}
if num < 0 {
return 0, fmt.Errorf("MAX_VOLUMES_PERNODE must be greater than 0, but got: %s", volumeNum)
}
klog.Infof("MAX_VOLUMES_PERNODE is set to (from env): %d", num)
return num, nil
}
return 0, nil
}
// NewNodeServer creates node server
func NewNodeServer(m metadata.MetadataProvider) csi.NodeServer {
// Create Directory
os.MkdirAll(VolumeDir, os.FileMode(0755))
os.MkdirAll(VolumeDirRemove, os.FileMode(0755))
os.MkdirAll(RundSocketDir, os.FileMode(0755))
if IsVFNode() {
klog.Infof("Currently node is VF model")
} else {
klog.Infof("Currently node is NOT VF model")
}
if GlobalConfigVar.CheckBDFHotPlugin {
go checkVfhpOnlineReconcile()
}
if IsVFNode() && GlobalConfigVar.BdfHealthCheck {
go BdfHealthCheck()
}
kataBMIOType := BDF
value, err := m.Get(metadata.VmocType)
if err != nil {
klog.Errorf("get vmoc failed: %+v", err)
}
if err == nil && value == "true" {
kataBMIOType = DFBus
}
klog.Infof("KATA BFIO Type: %v", kataBMIOType)
podCgroup, err := utils.NewPodCGroup()
if err != nil {
klog.Fatalf("Failed to initialize pod cgroup: %v", err)
}
waiter, batcher := newBatcher(true)
return &nodeServer{
metadata: m,
mounter: utils.NewMounter(),
kataBMIOType: kataBMIOType,
k8smounter: k8smount.New(""),
podCGroup: podCgroup,
clientSet: GlobalConfigVar.ClientSet,
ad: DiskAttachDetach{
waiter: waiter,
batcher: batcher,
// if ADController is not enabled, we need serial attach to recognize old disk
slots: NewSlots(1, 1),
attachThrottler: defaultThrottler(),
detachThrottler: defaultThrottler(),
},
locks: utils.NewVolumeLocks(),
GenericNodeServer: common.GenericNodeServer{
NodeID: GlobalConfigVar.NodeID,
},
}
}
func (ns *nodeServer) NodeGetCapabilities(ctx context.Context, req *csi.NodeGetCapabilitiesRequest) (*csi.NodeGetCapabilitiesResponse, error) {
// currently there is a single NodeServer capability according to the spec
nscap := &csi.NodeServiceCapability{
Type: &csi.NodeServiceCapability_Rpc{
Rpc: &csi.NodeServiceCapability_RPC{
Type: csi.NodeServiceCapability_RPC_STAGE_UNSTAGE_VOLUME,
},
},
}
nscap2 := &csi.NodeServiceCapability{
Type: &csi.NodeServiceCapability_Rpc{
Rpc: &csi.NodeServiceCapability_RPC{
Type: csi.NodeServiceCapability_RPC_EXPAND_VOLUME,
},
},
}
nscap3 := &csi.NodeServiceCapability{
Type: &csi.NodeServiceCapability_Rpc{
Rpc: &csi.NodeServiceCapability_RPC{
Type: csi.NodeServiceCapability_RPC_GET_VOLUME_STATS,
},
},
}
// Disk Metric enable config
nodeSvcCap := []*csi.NodeServiceCapability{nscap, nscap2}
if GlobalConfigVar.MetricEnable {
nodeSvcCap = []*csi.NodeServiceCapability{nscap, nscap2, nscap3}
}
return &csi.NodeGetCapabilitiesResponse{
Capabilities: nodeSvcCap,
}, nil
}
// csi disk driver: bind directory from global to pod.
func (ns *nodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolumeRequest) (*csi.NodePublishVolumeResponse, error) {
if !ns.locks.TryAcquire(req.VolumeId) {
return nil, status.Errorf(codes.Aborted, "There is already an operation for %s", req.VolumeId)
}
defer ns.locks.Release(req.VolumeId)
// check target mount path
sourcePath := req.StagingTargetPath
if sourcePath == "" {
return nil, status.Error(codes.InvalidArgument, "NodePublishVolume: Staging Target Path must be provided")
}
targetPath := req.GetTargetPath()
isBlock := req.GetVolumeCapability().GetBlock() != nil
if isBlock {
sourcePath = filepath.Join(req.StagingTargetPath, req.VolumeId)
if err := ns.mounter.EnsureBlock(targetPath); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
} else {
if err := os.MkdirAll(targetPath, 0755); err != nil {
klog.Errorf("NodePublishVolume: create volume %s path %s error: %v", req.VolumeId, targetPath, err)
return nil, status.Error(codes.Internal, err.Error())
}
}
// if target path mounted already, return
notMounted, err := ns.k8smounter.IsLikelyNotMountPoint(targetPath)
if err != nil && !errors.Is(err, fs.ErrNotExist) {
klog.Errorf("NodePublishVolume: failed to check if %s is a mount point err: %v", targetPath, err)
return nil, status.Errorf(codes.Internal, "failed to check if %s is a mount point: %v", targetPath, err)
}
if !notMounted {
klog.Infof("NodePublishVolume: TargetPath(%s) is mounted, not need mount again", targetPath)
return &csi.NodePublishVolumeResponse{}, nil
}
options, fsType := prepareMountInfos(req)
klog.Infof("NodePublishVolume: Starting Mount Volume %s, source %s > target %s", req.VolumeId, sourcePath, targetPath)
mkfsOptions := req.VolumeContext[MkfsOptions]
runtime := utils.GetPodRunTime(ctx, req, ns.clientSet)
// check pod runtime
switch runtime {
case utils.RunvRunTimeTag:
err := ns.mountRunvVolumes(req.VolumeId, sourcePath, req.TargetPath, fsType, mkfsOptions, isBlock, options)
if err != nil {
return nil, err
}
return &csi.NodePublishVolumeResponse{}, nil
case utils.RundRunTimeTag:
if directvolume.IsRunDVolumeAlreadyMount(req.TargetPath) {
klog.Infof("NodePublishVolume: TargetPath: %s already mounted by csi3.0/csi2.0 protocol", req.TargetPath)
return &csi.NodePublishVolumeResponse{}, nil
}
klog.Infof("NodePublishVolume: TargetPath: %s is umounted, start mount in kata mode", req.TargetPath)
mountFlags := req.GetVolumeCapability().GetMount().GetMountFlags()
pvName := utils.GetPvNameFormPodMnt(targetPath)
returned, err := ns.mountRunDVolumes(req.VolumeId, pvName, sourcePath, req.TargetPath, fsType, mkfsOptions, isBlock, mountFlags)
if err != nil {
return nil, err
}
if returned {
return &csi.NodePublishVolumeResponse{}, nil
}
}
// check if block volume
if isBlock {
notMounted, err := ns.k8smounter.IsLikelyNotMountPoint(targetPath)
if err != nil && !errors.Is(err, fs.ErrNotExist) {
return nil, status.Errorf(codes.Internal, "failed to check if %s is not a mount point: %v", targetPath, err)
}
if notMounted {
options := []string{"bind"}
if err := ns.mounter.MountBlock(sourcePath, targetPath, options...); err != nil {
return nil, err
}
}
klog.Infof("NodePublishVolume: Mount Successful Block Volume: %s, from source %s to target %v", req.VolumeId, sourcePath, targetPath)
return &csi.NodePublishVolumeResponse{}, nil
}
sourceNotMounted, err := ns.k8smounter.IsLikelyNotMountPoint(sourcePath)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
if sourceNotMounted {
device, err := DefaultDeviceManager.GetDeviceByVolumeID(req.GetVolumeId())
if err == nil {
if err := ns.mountDeviceToGlobal(req.VolumeCapability, req.VolumeContext, device, sourcePath); err != nil {
return nil, status.Errorf(codes.Internal, "NodePublishVolume: VolumeId: %s, remount disk to sourcePath %s failed: %s", req.VolumeId, sourcePath, err.Error())
}
klog.Infof("NodePublishVolume: SourcePath %s not mounted, and mounted again with device %s", sourcePath, device)
} else {
return nil, status.Errorf(codes.Internal, "NodePublishVolume: VolumeId: %s, sourcePath %s is not mounted, and device not found: %s", req.VolumeId, sourcePath, err.Error())
}
}
// check device name available
expectName, err := GetVolumeDeviceName(req.VolumeId)
if err != nil {
return nil, status.Errorf(codes.Internal, "NodePublishVolume: VolumeId: %s, get device name error: %s", req.VolumeId, err.Error())
}
realDevice, _, err := mount.GetDeviceNameFromMount(ns.k8smounter, sourcePath)
if err != nil {
return nil, status.Errorf(codes.Internal, "NodePublishVolume: get device name from mount %s error: %s", sourcePath, err.Error())
}
if realDevice == "" {
opts := append(options, "shared")
if err := ns.k8smounter.Mount(expectName, sourcePath, fsType, opts); err != nil {
klog.Errorf("NodePublishVolume: mount source error: %s, %s, %s", expectName, sourcePath, err.Error())
return nil, status.Error(codes.Internal, "NodePublishVolume: mount source error: "+expectName+", "+sourcePath+", "+err.Error())
}
realDevice, _, err = mount.GetDeviceNameFromMount(ns.k8smounter, sourcePath)
if err != nil {
return nil, status.Errorf(codes.Internal, "NodePublishVolume: get device name from mount %s error: %s", sourcePath, err.Error())
}
}
if realDevice != "tmpfs" {
matched := false
if realDevice != "" {
realMajor, realMinor, err := DefaultDeviceManager.DevTmpFS.DevFor(realDevice)
if err != nil {
return nil, status.Errorf(codes.Internal, "NodePublishVolume: VolumeId: %s, stat real failed: %s", req.VolumeId, err.Error())
}
expectMajor, expectMinor, err := DefaultDeviceManager.DevTmpFS.DevFor(expectName)
if err != nil {
return nil, status.Errorf(codes.Internal, "NodePublishVolume: VolumeId: %s, stat expect failed: %s", req.VolumeId, err.Error())
}
if realMajor == expectMajor && realMinor == expectMinor {
matched = true
}
}
if !matched {
return nil, status.Errorf(codes.Internal, "NodePublishVolume: VolumeId: %s, real Device: %s not same with expected: %s", req.VolumeId, realDevice, expectName)
}
}
// Set volume IO Limit
err = ns.podCGroup.ApplyConfig(realDevice, req)
if err != nil {
klog.Errorf("NodePublishVolume: Set Disk Volume(%s) IO Limit with Error: %s", req.VolumeId, err.Error())
return nil, status.Error(codes.Internal, err.Error())
}
klog.Infof("NodePublishVolume: Starting mount volume %s with flags %v and fsType %s", req.VolumeId, options, fsType)
if err = ns.k8smounter.Mount(sourcePath, targetPath, fsType, options); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
klog.Infof("NodePublishVolume: Mount Successful Volume: %s, from source %s to target %v", req.VolumeId, sourcePath, targetPath)
return &csi.NodePublishVolumeResponse{}, nil
}
func (ns *nodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpublishVolumeRequest) (*csi.NodeUnpublishVolumeResponse, error) {
targetPath := req.GetTargetPath()
klog.Infof("NodeUnpublishVolume: Starting to Unmount Volume %s, Target %v", req.VolumeId, targetPath)
if !ns.locks.TryAcquire(req.VolumeId) {
return nil, status.Errorf(codes.Aborted, "There is already an operation for %s", req.VolumeId)
}
defer ns.locks.Release(req.VolumeId)
// Step 1: check folder exists
if !IsFileExisting(targetPath) {
if err := ns.unmountDuplicateMountPoint(targetPath, req.VolumeId); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
klog.Infof("NodeUnpublishVolume: Volume %s Folder %s doesn't exist", req.VolumeId, targetPath)
return &csi.NodeUnpublishVolumeResponse{}, nil
}
// Step 2: check mount point
notmounted, err := ns.k8smounter.IsLikelyNotMountPoint(targetPath)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
if notmounted {
// check runtime mode
isRunDType, err := ns.umountRunDVolumes(targetPath)
if err != nil {
return nil, status.Errorf(codes.Internal, "NodeUnpublishVolume: umountRunDVolumes with error: %s", err.Error())
}
if isRunDType && err == nil {
klog.Infof("NodeUnpublishVolume: %s is runD volume and is removed successful", targetPath)
return &csi.NodeUnpublishVolumeResponse{}, nil
}
if empty, _ := IsDirEmpty(targetPath); empty {
if err := ns.unmountDuplicateMountPoint(targetPath, req.VolumeId); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
klog.Infof("NodeUnpublishVolume: %s is unmounted and empty", targetPath)
return &csi.NodeUnpublishVolumeResponse{}, nil
}
// Block device
if !utils.IsDir(targetPath) && strings.HasPrefix(targetPath, BLOCKVOLUMEPREFIX) {
if removeErr := os.Remove(targetPath); removeErr != nil {
klog.Errorf("NodeUnpublishVolume: VolumeId: %s, Could not remove mount block target %s with error %v", req.VolumeId, targetPath, removeErr)
return nil, status.Errorf(codes.Internal, "Could not remove mount block target %s: %v", targetPath, removeErr)
}
klog.Infof("NodeUnpublishVolume: %s is block volume and is removed successful", targetPath)
return &csi.NodeUnpublishVolumeResponse{}, nil
}
klog.Errorf("NodeUnpublishVolume: VolumeId: %s, Path %s is unmounted, but not empty dir", req.VolumeId, targetPath)
return nil, status.Errorf(codes.Internal, "NodeUnpublishVolume: VolumeId: %s, Path %s is unmounted, but not empty dir", req.VolumeId, targetPath)
}
// Step 3: umount target path
err = ns.k8smounter.Unmount(targetPath)
if err != nil {
klog.Errorf("NodeUnpublishVolume: volumeId: %s, umount path: %s with error: %s", req.VolumeId, targetPath, err.Error())
return nil, status.Error(codes.Internal, err.Error())
}
err = os.Remove(targetPath)
if err != nil {
return nil, status.Errorf(codes.Internal, "NodeUnpublishVolume: Cannot remove targetPath %s: %v", targetPath, err)
}
// below directory can not be umounted by kubelet in ack
if err := ns.unmountDuplicateMountPoint(targetPath, req.VolumeId); err != nil {
klog.Errorf("NodeUnpublishVolume: umount duplicate mountpoint %s with error: %v", targetPath, err)
return nil, status.Error(codes.Internal, err.Error())
}
klog.Infof("NodeUnpublishVolume: Umount Successful for volume %s, target %v", req.VolumeId, targetPath)
return &csi.NodeUnpublishVolumeResponse{}, nil
}
func (ns *nodeServer) NodeStageVolume(ctx context.Context, req *csi.NodeStageVolumeRequest) (*csi.NodeStageVolumeResponse, error) {
klog.Infof("NodeStageVolume: Stage VolumeId: %s, Target Path: %s, VolumeContext: %v", req.GetVolumeId(), req.StagingTargetPath, req.VolumeContext)
if !ns.locks.TryAcquire(req.VolumeId) {
return nil, status.Errorf(codes.Aborted, "There is already an operation for %s", req.VolumeId)
}
defer ns.locks.Release(req.VolumeId)
targetPath := req.StagingTargetPath
// targetPath format: /var/lib/kubelet/plugins/kubernetes.io/csi/pv/pv-disk-1e7001e0-c54a-11e9-8f89-00163e0e78a0/globalmount
isBlock := req.GetVolumeCapability().GetBlock() != nil
if isBlock {
targetPath = filepath.Join(targetPath, req.VolumeId)
}
// for runc & rund-csi2.0 kubelet restart
mounted, err := ns.ensurePathExistsAndCheckMounted(req.VolumeId, targetPath, isBlock)
if err != nil {
return nil, err
}
if mounted {
return &csi.NodeStageVolumeResponse{}, nil
}
mounted = ns.checkMountedOfRunvAndRund(req.VolumeId, targetPath)
if mounted {
return &csi.NodeStageVolumeResponse{}, nil
}
device := ""
isSharedDisk := false
if value, ok := req.VolumeContext[SharedEnable]; ok {
value = strings.ToLower(value)
if checkOption(value) {
isSharedDisk = true
}
}
isMultiAttach := false
if value, ok := req.VolumeContext[MultiAttach]; ok {
value = strings.ToLower(value)
if checkOption(value) {
isMultiAttach = true
}
}
var isSingleInstance bool
if value, ok := req.VolumeContext["type"]; ok {
isSingleInstance = AllCategories[Category(value)].SingleInstance
}
// Step 4 Attach volume
defaultErrCode := codes.Internal
if GlobalConfigVar.ADControllerEnable || isMultiAttach {
device, err = DefaultDeviceManager.GetDeviceByVolumeID(req.GetVolumeId())
if err != nil {
if IsVFNode() {
bdf, err := bindBdfDisk(req.GetVolumeId())
if err != nil {
if err := unbindBdfDisk(req.GetVolumeId()); err != nil {
return nil, status.Errorf(codes.Aborted, "NodeStageVolume: failed to detach bdf disk: %v", err)
}
return nil, status.Errorf(codes.Aborted, "NodeStageVolume: failed to attach bdf disk: %v", err)
}
// devicePaths, err = GetDeviceByVolumeID(req.GetVolumeId())
if bdf != "" {
device, err = GetDeviceByBdf(bdf, true)
}
klog.Infof("NodeStageVolume: enabled bdf mode, device: %s, bdf: %s", device, bdf)
} else {
return nil, status.Errorf(codes.Aborted, "NodeStageVolume: ADController Enabled, but disk %s can't be found: %s", req.VolumeId, err.Error())
}
}
} else {
device, err = ns.ad.attachDisk(ctx, req.GetVolumeId(), ns.NodeID, isSharedDisk, isSingleInstance, true)
if err != nil {
fullErrorMessage := utils.FindSuggestionByErrorMessage(err.Error(), utils.DiskAttachDetach)
klog.Errorf("NodeStageVolume: Attach volume: %s with error: %s", req.VolumeId, fullErrorMessage)
return nil, status.Errorf(codes.Aborted, "NodeStageVolume: Attach volume: %s with error: %+v", req.VolumeId, err)
}
// Now we have attached the disk, if we fail later, NodeStageVolume is in-progress.
// Return Aborted so that the CO will call NodeUnstageVolume later to detach.
defaultErrCode = codes.Aborted
}
if err := CheckDeviceAvailable(device, req.VolumeId, targetPath); err != nil {
klog.Errorf("NodeStageVolume: check device %s for volume %s with error: %s", device, req.VolumeId, err.Error())
return nil, status.Error(defaultErrCode, err.Error())
}
if err := saveVolumeConfig(req.VolumeId, device); err != nil {
klog.Errorf("NodeStageVolume: saveVolumeConfig %s for volume %s with error: %s", device, req.VolumeId, err.Error())
return nil, status.Error(defaultErrCode, "NodeStageVolume: saveVolumeConfig for ("+req.VolumeId+device+") error with: "+err.Error())
}
klog.Infof("NodeStageVolume: Volume Successful Attached: %s, to Node: %s, Device: %s", req.VolumeId, ns.NodeID, device)
// sysConfig
if value, ok := req.VolumeContext[SysConfigTag]; ok {
configList := strings.Split(strings.TrimSpace(value), ",")
for _, configStr := range configList {
key, value, found := strings.Cut(configStr, "=")
if !found {
klog.Errorf("NodeStageVolume: Volume Block System Config with format error: %s", configStr)
return nil, status.Error(defaultErrCode, "NodeStageVolume: Volume Block System Config with format error "+configStr)
}
err := DefaultDeviceManager.WriteSysfs(device, key, []byte(value))
if err != nil {
return nil, status.Errorf(defaultErrCode, "NodeStageVolume: set sysConfig %s=%s failed: %v", key, value, err)
}
klog.Infof("NodeStageVolume: set sysConfig %s=%s", key, value)
}
}
omitfsck := false
if disable, ok := req.VolumeContext[OmitFilesystemCheck]; ok && disable == "true" {
omitfsck = true
}
// Block volume not need to format
if isBlock {
notmounted, err := ns.k8smounter.IsLikelyNotMountPoint(targetPath)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to check if %s is not a mount point: %v", targetPath, err)
}
if !notmounted {
klog.Infof("NodeStageVolume: Block Already Mounted: volumeId: %s with target %s", req.VolumeId, targetPath)
return &csi.NodeStageVolumeResponse{}, nil
}
options := []string{"bind"}
if err := ns.mounter.MountBlock(device, targetPath, options...); err != nil {
return nil, status.Error(defaultErrCode, err.Error())
}
klog.Infof("NodeStageVolume: Successfully Mount Device %s to %s with options: %v", device, targetPath, options)
return &csi.NodeStageVolumeResponse{}, nil
}
// Step 5 Start to format
mnt := req.VolumeCapability.GetMount()
options := append(mnt.MountFlags, "shared")
fsType := "ext4"
if mnt.FsType != "" {
fsType = mnt.FsType
}
mountOptions := collectMountOptions(fsType, options)
if err := os.MkdirAll(targetPath, 0755); err != nil {
return nil, status.Error(defaultErrCode, err.Error())
}
// Set mkfs options for ext3, ext4
mkfsOptions := make([]string, 0)
if value, ok := req.VolumeContext[MkfsOptions]; ok {
mkfsOptions = strings.Split(value, " ")
}
// do format-mount or mount
diskMounter := &k8smount.SafeFormatAndMount{Interface: ns.k8smounter, Exec: utilexec.New()}
if err := utils.FormatAndMount(diskMounter, device, targetPath, fsType, mkfsOptions, mountOptions, omitfsck); err != nil {
klog.Errorf("Mountdevice: FormatAndMount fail with mkfsOptions %s, %s, %s, %s, %s with error: %s", device, targetPath, fsType, mkfsOptions, mountOptions, err.Error())
return nil, status.Error(defaultErrCode, err.Error())
}
// if len(mkfsOptions) > 0 && (fsType == "ext4" || fsType == "ext3") {
// if err := utils.FormatAndMount(diskMounter, device, targetPath, fsType, mkfsOptions, mountOptions, GlobalConfigVar.OmitFilesystemCheck); err != nil {
// klog.Errorf("Mountdevice: FormatAndMount fail with mkfsOptions %s, %s, %s, %s, %s with error: %s", device, targetPath, fsType, mkfsOptions, mountOptions, err.Error())
// return nil, status.Error(defaultErrCode, err.Error())
// }
// } else {
// if err := diskMounter.FormatAndMount(device, targetPath, fsType, mountOptions); err != nil {
// klog.Errorf("NodeStageVolume: Volume: %s, Device: %s, FormatAndMount error: %s", req.VolumeId, device, err.Error())
// return nil, status.Error(defaultErrCode, err.Error())
// }
// }
klog.Infof("NodeStageVolume: Mount Successful: volumeId: %s target %v, device: %s, mkfsOptions: %v, options: %v", req.VolumeId, targetPath, device, mkfsOptions, mountOptions)
r := k8smount.NewResizeFs(diskMounter.Exec)
needResize, err := r.NeedResize(device, targetPath)
if err != nil {
klog.Infof("NodeStageVolume: Could not determine if volume %s need to be resized: %v", req.VolumeId, err)
return &csi.NodeStageVolumeResponse{}, nil
}
if needResize {
klog.Infof("NodeStageVolume: Resizing volume %q created from a snapshot/volume", req.VolumeId)
if _, err := r.Resize(device, targetPath); err != nil {
return nil, status.Errorf(defaultErrCode, "Could not resize volume %s: %v", req.VolumeId, err)
}
}
return &csi.NodeStageVolumeResponse{}, nil
}
func addDiskXattr(diskID string) (err error) {
defer func() {
if errors.Is(err, os.ErrNotExist) {
klog.Infof("addDiskXattr: disk %s not found, skip", diskID)
err = nil
}
}()
device, err := GetVolumeDeviceName(diskID)
if err != nil {
return
}
return unix.Setxattr(device, DiskXattrName, []byte(diskID), 0)
}
// target format: /var/lib/kubelet/plugins/kubernetes.io/csi/pv/pv-disk-1e7001e0-c54a-11e9-8f89-00163e0e78a0/globalmount
func (ns *nodeServer) NodeUnstageVolume(ctx context.Context, req *csi.NodeUnstageVolumeRequest) (*csi.NodeUnstageVolumeResponse, error) {
klog.Infof("NodeUnstageVolume:: Starting to Unmount volume, volumeId: %s, target: %v", req.VolumeId, req.StagingTargetPath)
if !ns.locks.TryAcquire(req.VolumeId) {
return nil, status.Errorf(codes.Aborted, "There is already an operation for %s", req.VolumeId)
}
defer ns.locks.Release(req.VolumeId)
// check block device mountpoint
targetPath := req.GetStagingTargetPath()
tmpPath := filepath.Join(req.GetStagingTargetPath(), req.VolumeId)
if IsFileExisting(tmpPath) {
fileInfo, err := os.Lstat(tmpPath)
if err != nil {
if strings.Contains(strings.ToLower(err.Error()), InputOutputErr) {
if err = isPathAvailiable(targetPath); err != nil {
if err = ns.k8smounter.Unmount(targetPath); err != nil {
klog.Errorf("NodeUnstageVolume: umount target %s(input/output error) with error: %v", targetPath, err)
return nil, status.Errorf(codes.InvalidArgument, "NodeUnstageVolume umount target %s with errror: %v", targetPath, err)
}
klog.Warningf("NodeUnstageVolume: target path %s show input/output error: %v, umount it.", targetPath, err)
}
} else {
klog.Errorf("NodeUnstageVolume: lstat mountpoint: %s with error: %s", tmpPath, err.Error())
return nil, status.Error(codes.InvalidArgument, "NodeUnstageVolume: stat mountpoint error: "+err.Error())
}
} else {
if (fileInfo.Mode() & os.ModeDevice) != 0 {
klog.Infof("NodeUnstageVolume: mountpoint %s, is block device", tmpPath)
}
// if mountpoint not a block device, maybe something wrong happened in VolumeStageVolume.
// when pod deleted, the volume should be detached
targetPath = tmpPath
}
}
// Step 1: check folder exists and umount
msgLog := ""
if IsFileExisting(targetPath) {
notmounted, err := ns.k8smounter.IsLikelyNotMountPoint(targetPath)
if err != nil {
klog.Errorf("NodeUnstageVolume: VolumeId: %s, check mountPoint: %s error: %v", req.VolumeId, targetPath, err)
return nil, status.Error(codes.Internal, err.Error())
}
if !notmounted {
err = ns.k8smounter.Unmount(targetPath)
if err != nil {
klog.Errorf("NodeUnstageVolume: VolumeId: %s, umount path: %s failed with: %v", req.VolumeId, targetPath, err)
return nil, status.Error(codes.Internal, err.Error())
}
notmounted, err = ns.k8smounter.IsLikelyNotMountPoint(targetPath)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to check if %s is not a mount point after umount: %v", targetPath, err)
}
if !notmounted {
klog.Errorf("NodeUnstageVolume: TargetPath mounted yet, volumeId: %s, Target: %s", req.VolumeId, targetPath)
return nil, status.Error(codes.Internal, "NodeUnstageVolume: TargetPath mounted yet with target"+targetPath)
}
} else {
msgLog = fmt.Sprintf("NodeUnstageVolume: VolumeId: %s, mountpoint: %s not mounted, skipping and continue to detach", req.VolumeId, targetPath)
}
} else {
msgLog = fmt.Sprintf("NodeUnstageVolume: VolumeId: %s, Path %s doesn't exist, continue to detach", req.VolumeId, targetPath)
}
if msgLog == "" {
klog.Infof("NodeUnstageVolume: Unmount TargetPath successful, target %v, volumeId: %s", targetPath, req.VolumeId)
} else {
klog.Infof(msgLog)
}
if IsVFNode() {
if err := unbindBdfDisk(req.VolumeId); err != nil {
klog.Errorf("NodeUnstageVolume: unbind bdf disk %s with error: %v", req.VolumeId, err)
return nil, err
}
}
if IsVFInstance() && !IsVFNode() {
bdf, err := findBdf(req.VolumeId)
if err != nil {
return nil, err
}
if err := clearBdfInfo(req.VolumeId, bdf); err != nil {
klog.Errorf("NodeUnstagedVolume: clear disk bdf info %s with err: %s", req.VolumeId, err)
return nil, err
}
}
err := addDiskXattr(req.VolumeId)
if err != nil {
klog.Errorf("NodeUnstageVolume: addDiskXattr %s failed: %v", req.VolumeId, err)
}
// Do detach if ADController disable
if !GlobalConfigVar.ADControllerEnable {
// if DetachDisabled is set to true, return
if GlobalConfigVar.DetachDisabled {
klog.Infof("NodeUnstageVolume: ADController is Disable, Detach Flag Set to false, PV %s", req.VolumeId)
return &csi.NodeUnstageVolumeResponse{}, nil
}
ecsClient := updateEcsClient(GlobalConfigVar.EcsClient)
err = ns.ad.detachDisk(ctx, ecsClient, req.VolumeId, ns.NodeID)
if err != nil {
klog.Errorf("NodeUnstageVolume: VolumeId: %s, Detach failed with error %v", req.VolumeId, err.Error())
return nil, err
}
removeVolumeConfig(req.VolumeId)
}
return &csi.NodeUnstageVolumeResponse{}, nil
}
func (ns *nodeServer) NodeGetInfo(ctx context.Context, req *csi.NodeGetInfoRequest) (*csi.NodeGetInfoResponse, error) {
maxVolumesNum, err := parseVolumeCountEnv()
if err != nil {
return nil, err
}
nodeName := os.Getenv(kubeNodeName)
if nodeName == "" {
klog.Fatalf("NodeGetInfo: KUBE_NODE_NAME must be set")
}
var node *v1.Node
getNode := func() (*v1.Node, error) {
var err error
node, err = GlobalConfigVar.ClientSet.CoreV1().Nodes().Get(ctx, nodeName, metav1.GetOptions{})
return node, err
}
c := updateEcsClient(GlobalConfigVar.EcsClient)
if maxVolumesNum == 0 {
maxVolumesNum, err = getVolumeCountFromOpenAPI(getNode, c, ns.metadata, utilsio.RealDevTmpFS{})
} else {
node, err = getNode()
}
if err != nil {
return nil, err
}
var diskTypes []string
if !GlobalConfigVar.DiskAllowAllType {
diskTypes, err = GetAvailableDiskTypes(ctx, c, ns.metadata)
if err != nil {
if hasDiskTypeLabel(node) {
klog.ErrorS(err, "NodeGetInfo: failed to get available disk types, will use existing config.")
} else {
return nil, fmt.Errorf(
"failed to get available disk types: %w. "+
"You may add labels like node.csi.alibabacloud.com/disktype.cloud_essd=available to node manually", err)
}
} else {
klog.Infof("NodeGetInfo: Supported disk types: %v", diskTypes)
}
} else {
klog.Warning("NodeGetInfo: DISK_ALLOW_ALL_TYPE is set, you need to ensure the EBS disk type is compatible with the ECS instance type yourself!")
}
patch := patchForNode(node, maxVolumesNum, diskTypes)
if patch != nil {
_, err = GlobalConfigVar.ClientSet.CoreV1().Nodes().Patch(ctx, nodeName, types.StrategicMergePatchType, patch, metav1.PatchOptions{})
if err != nil {
return nil, fmt.Errorf("failed to update node: %w", err)
}
klog.Infof("NodeGetInfo: node updated")
} else {
klog.Info("NodeGetInfo: no need to update node")
}
return &csi.NodeGetInfoResponse{
NodeId: ns.NodeID,
MaxVolumesPerNode: int64(maxVolumesNum),
// make sure that the driver works on this particular zone only
AccessibleTopology: &csi.Topology{
Segments: map[string]string{
common.ECSInstanceIDTopologyKey: metadata.MustGet(ns.metadata, metadata.InstanceID),
TopologyZoneKey: metadata.MustGet(ns.metadata, metadata.ZoneID),
common.TopologyKeyZone: metadata.MustGet(ns.metadata, metadata.ZoneID),
common.TopologyKeyRegion: metadata.MustGet(ns.metadata, metadata.RegionID),
},
},
}, nil
}
func (ns *nodeServer) NodeExpandVolume(ctx context.Context, req *csi.NodeExpandVolumeRequest) (
*csi.NodeExpandVolumeResponse, error) {
logger := klog.FromContext(ctx)
logger.V(2).Info("starting", "req", req)
if req.VolumeCapability != nil && req.VolumeCapability.GetBlock() != nil {
klog.V(2).Info("skipping expand for block volume")
return &csi.NodeExpandVolumeResponse{}, nil
}
volumePath := req.GetVolumePath()
diskID := req.GetVolumeId()
if strings.Contains(volumePath, BLOCKVOLUMEPREFIX) {
klog.Infof("NodeExpandVolume:: Block Volume not Expand FS, volumeId: %s, volumePath: %s", diskID, volumePath)
return &csi.NodeExpandVolumeResponse{}, nil
}
_, pvc, err := getPvPvcFromDiskId(diskID)
if err != nil {
klog.Errorf("NodeExpandVolume:: failed to get pvc from apiserver: %s", err.Error())
}
volumeExpandAutoSnapshotID := ""
if pvc != nil && pvc.Annotations != nil {
volumeExpandAutoSnapshotID, _ = pvc.Annotations[veasp.IDKey]
}
// volume resize in rund type will transfer to guest os
isRund, err := checkRundVolumeExpand(req)
if isRund && err == nil {
klog.Infof("NodeExpandVolume:: Rund Volume ExpandFS Successful, volumeId: %s, volumePath: %s", diskID, volumePath)
return &csi.NodeExpandVolumeResponse{}, nil
} else if isRund && err != nil {
klog.Errorf("NodeExpandVolume:: Rund Volume ExpandFS error(%s), volumeId: %s, volumePath: %s", err.Error(), diskID, volumePath)
return nil, status.Error(codes.InvalidArgument, err.Error())
}
snapshotEnable := volumeExpandAutoSnapshotID != ""
defer func() {
if snapshotEnable {
deleteUntagAutoSnapshot(volumeExpandAutoSnapshotID, diskID)
}
}()
resp, err := localExpandVolume(ctx, req)
if err != nil && snapshotEnable {
klog.Warningf("NodeExpandVolume:: Please use the snapshot %s for data recovery. The retentionDays is %d", volumeExpandAutoSnapshotID, veasp.RetentionDays)
snapshotEnable = false
}
return resp, err
}
func localExpandVolume(ctx context.Context, req *csi.NodeExpandVolumeRequest) (*csi.NodeExpandVolumeResponse, error) {
requestBytes := req.GetCapacityRange().GetRequiredBytes()
volumePath := req.GetVolumePath()
diskID := req.GetVolumeId()
devicePath, err := GetVolumeDeviceName(diskID)
if err != nil {
if errors.Is(err, os.ErrNotExist) {
return nil, status.Errorf(codes.NotFound, "can't get devicePath for: %s", diskID)
}
return nil, status.Errorf(codes.Internal, "NodeExpandVolume: VolumeId: %s, get device name error: %s", req.VolumeId, err.Error())
}
logger := klog.FromContext(ctx).WithValues("device", devicePath)
ctx = klog.NewContext(ctx, logger)
rootPath, index, err := DefaultDeviceManager.GetDeviceRootAndPartitionIndex(devicePath)
if err != nil {
return nil, status.Errorf(codes.Internal, "GetDeviceRootAndIndex(%s) failed: %v", diskID, err)
}
if index != "" {
err := sfdisk.ExpandPartition(ctx, rootPath, index)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
logger.V(2).Info("Successful expand partition", "root", rootPath, "partition", index)
}
klog.V(2).Info("Expand filesystem start", "volumePath", volumePath)
// use resizer to expand volume filesystem
r := k8smount.NewResizeFs(utilexec.New())
ok, err := r.Resize(devicePath, volumePath)
if err != nil {
klog.Errorf("NodeExpandVolume:: Resize Error, volumeId: %s, devicePath: %s, volumePath: %s, err: %s", diskID, devicePath, volumePath, err.Error())
return nil, status.Error(codes.Internal, err.Error())
}
if !ok {
klog.Errorf("NodeExpandVolume:: Resize failed, volumeId: %s, devicePath: %s, volumePath: %s", diskID, devicePath, volumePath)
return nil, status.Error(codes.Internal, "Fail to resize volume fs")
}
deviceCapacity := getBlockDeviceCapacity(devicePath)
if requestBytes > 0 && deviceCapacity < requestBytes {
// After calling OpenAPI to expand cloud disk, the size of the underlying block device may not change immediately.
// return error and CO will retry later.
return nil, status.Errorf(codes.Aborted, "requested %v, but actual block size %v is smaller. Not updated yet?",
resource.NewQuantity(requestBytes, resource.BinarySI), resource.NewQuantity(deviceCapacity, resource.BinarySI))
}
klog.Infof("NodeExpandVolume:: Expand %s to %v successful", diskID, DiskSize{deviceCapacity})
return &csi.NodeExpandVolumeResponse{
CapacityBytes: deviceCapacity,
}, nil
}
// umount path and not remove
func (ns *nodeServer) unmountStageTarget(targetPath string) error {
msgLog := "UnmountStageTarget: Unmount Stage Target: " + targetPath
if IsFileExisting(targetPath) {
notmounted, err := ns.k8smounter.IsLikelyNotMountPoint(targetPath)
if err != nil {
klog.Errorf("unmountStageTarget: check mountPoint: %s mountpoint error: %v", targetPath, err)
return status.Error(codes.Internal, err.Error())
}
if !notmounted {
err = ns.k8smounter.Unmount(targetPath)
if err != nil {
klog.Errorf("unmountStageTarget: umount path: %s failed with: %v", targetPath, err)
return status.Error(codes.Internal, err.Error())
}
} else {