296 lines
8.0 KiB
Go
296 lines
8.0 KiB
Go
/*
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Copyright 2016 The Rook Authors. All rights reserved.
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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 inventory
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import (
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"errors"
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"fmt"
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"log"
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"path"
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"strconv"
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"strings"
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etcd "github.com/coreos/etcd/client"
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"github.com/rook/rook/pkg/util"
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"github.com/rook/rook/pkg/util/exec"
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"github.com/rook/rook/pkg/util/sys"
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ctx "golang.org/x/net/context"
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)
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const (
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diskUUIDKey = "uuid"
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diskSizeKey = "size"
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diskRotationalKey = "rotational"
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diskReadonlyKey = "readonly"
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diskFileSystemKey = "filesystem"
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diskTypeKey = "type"
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diskParentKey = "parent"
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diskHasChildrenKey = "children"
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diskMountPointKey = "mountpoint"
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)
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func DiskTypeToStr(diskType DiskType) string {
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switch diskType {
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case Disk:
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return "disk"
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case Part:
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return "part"
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default:
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return "unknown"
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}
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}
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func StrToDiskType(diskType string) (DiskType, error) {
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diskType = strings.ToLower(diskType)
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switch diskType {
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case "disk":
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return Disk, nil
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case "part":
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return Part, nil
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default:
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return -1, errors.New(fmt.Sprintf("unknown disk type: %s", diskType))
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}
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}
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func GetDeviceSize(name, nodeID string, etcdClient etcd.KeysAPI) (uint64, error) {
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key := path.Join(GetNodeConfigKey(nodeID), disksKey, name, diskSizeKey)
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resp, err := etcdClient.Get(ctx.Background(), key, nil)
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if err != nil {
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return 0, err
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}
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size, err := strconv.ParseUint(resp.Node.Value, 10, 64)
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if err != nil {
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return 0, err
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}
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return size, nil
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}
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func GetDeviceFromUUID(uuid, nodeID string, etcdClient etcd.KeysAPI) (string, error) {
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key := path.Join(GetNodeConfigKey(nodeID), disksKey)
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devices, err := util.GetDirChildKeys(etcdClient, key)
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if err != nil {
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return "", err
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}
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for d := range devices.Iter() {
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resp, err := etcdClient.Get(ctx.Background(), path.Join(key, d, diskUUIDKey), nil)
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if err != nil || resp == nil || resp.Node == nil {
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continue
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}
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if resp.Node.Value == uuid {
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return d, nil
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}
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}
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return "", fmt.Errorf("device for uuid %s not found", uuid)
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}
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func SetDeviceUUID(nodeID, device, uuid string, etcdClient etcd.KeysAPI) error {
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key := path.Join(GetNodeConfigKey(nodeID), disksKey, device, diskUUIDKey)
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_, err := etcdClient.Set(ctx.Background(), key, uuid, nil)
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return err
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}
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func GetDeviceUUID(device, nodeID string, etcdClient etcd.KeysAPI) (string, error) {
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key := path.Join(GetNodeConfigKey(nodeID), disksKey, device, diskUUIDKey)
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resp, err := etcdClient.Get(ctx.Background(), key, nil)
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if err != nil {
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return "", err
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}
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return resp.Node.Value, nil
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}
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func getDiskInfo(diskInfo *etcd.Node) (*DiskConfig, error) {
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disk := &DiskConfig{}
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disk.Name = util.GetLeafKeyPath(diskInfo.Key)
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// iterate over all properties of the disk
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for _, diskProperty := range diskInfo.Nodes {
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diskPropertyName := util.GetLeafKeyPath(diskProperty.Key)
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switch diskPropertyName {
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case diskUUIDKey:
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disk.UUID = diskProperty.Value
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case diskSizeKey:
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size, err := strconv.ParseUint(diskProperty.Value, 10, 64)
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if err != nil {
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return nil, err
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} else {
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disk.Size = size
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}
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case diskRotationalKey:
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rotational, err := strconv.ParseInt(diskProperty.Value, 10, 64)
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if err != nil {
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return nil, err
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} else {
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disk.Rotational = itob(rotational)
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}
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case diskReadonlyKey:
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readonly, err := strconv.ParseInt(diskProperty.Value, 10, 64)
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if err != nil {
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return nil, err
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} else {
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disk.Readonly = itob(readonly)
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}
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case diskFileSystemKey:
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disk.FileSystem = diskProperty.Value
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case diskMountPointKey:
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disk.MountPoint = diskProperty.Value
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case diskTypeKey:
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diskType, err := StrToDiskType(diskProperty.Value)
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if err != nil {
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return nil, err
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} else {
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disk.Type = diskType
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}
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case diskParentKey:
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disk.Parent = diskProperty.Value
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case diskHasChildrenKey:
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hasChildren, err := strconv.ParseInt(diskProperty.Value, 10, 64)
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if err != nil {
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return nil, err
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} else {
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disk.HasChildren = itob(hasChildren)
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}
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default:
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log.Printf("unknown disk property key %s, skipping...", diskPropertyName)
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}
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}
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return disk, nil
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}
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func btoi(b bool) int {
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if b {
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return 1
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} else {
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return 0
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}
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}
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func itob(i int64) bool {
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if i == 0 {
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return false
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} else {
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return true
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}
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}
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func discoverDisks(nodeConfigKey string, etcdClient etcd.KeysAPI, executor exec.Executor) error {
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devices, err := sys.ListDevices(executor)
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if err != nil {
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return err
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}
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for _, d := range devices {
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diskProps, err := sys.GetDeviceProperties(d, executor)
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if err != nil {
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log.Printf("skipping device %s: %+v", d, err)
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continue
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}
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diskType, ok := diskProps["TYPE"]
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if !ok || (diskType != "ssd" && diskType != "disk" && diskType != "part") {
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// unsupported disk type, just continue
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continue
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}
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// get the UUID for disks
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var diskUUID string
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if diskType != "part" {
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diskUUID, err = sys.GetDiskUUID(d, executor)
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if err != nil {
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log.Printf("skipping device %s with an unknown uuid. %+v", d, err)
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continue
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}
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}
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fs, err := sys.GetDeviceFilesystems(d, executor)
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if err != nil {
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return err
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}
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dkey := path.Join(nodeConfigKey, disksKey, d)
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if _, err := etcdClient.Set(ctx.Background(), path.Join(dkey, diskUUIDKey), diskUUID, nil); err != nil {
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return err
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}
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if err := setSimpleDiskProperty("SIZE", diskSizeKey, dkey, diskProps, etcdClient); err != nil {
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return err
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}
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if err := setSimpleDiskProperty("ROTA", diskRotationalKey, dkey, diskProps, etcdClient); err != nil {
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return err
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}
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if err := setSimpleDiskProperty("RO", diskReadonlyKey, dkey, diskProps, etcdClient); err != nil {
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return err
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}
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if err := setSimpleDiskProperty("PKNAME", diskParentKey, dkey, diskProps, etcdClient); err != nil {
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return err
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}
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if _, err := etcdClient.Set(ctx.Background(), path.Join(dkey, diskFileSystemKey), fs, nil); err != nil {
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return err
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}
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}
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return nil
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}
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func setSimpleDiskProperty(propName, keyName, diskKey string, diskPropMap map[string]string, etcdClient etcd.KeysAPI) error {
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val, ok := diskPropMap[propName]
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if !ok {
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return fmt.Errorf("disk property %s not found in map: %+v", propName, diskPropMap)
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}
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if _, err := etcdClient.Set(ctx.Background(), path.Join(diskKey, keyName), val, nil); err != nil {
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return err
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}
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return nil
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}
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// test usage only
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func TestSetDiskInfo(etcdClient *util.MockEtcdClient, hardwareKey string, name string, uuid string, size uint64, rotational bool, readonly bool,
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filesystem string, mountPoint string, diskType DiskType, parent string, hasChildren bool) DiskConfig {
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diskKey := path.Join(hardwareKey, disksKey, name)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskUUIDKey), uuid, nil)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskSizeKey), strconv.FormatUint(size, 10), nil)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskRotationalKey), strconv.Itoa(btoi(rotational)), nil)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskReadonlyKey), strconv.Itoa(btoi(readonly)), nil)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskFileSystemKey), filesystem, nil)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskMountPointKey), mountPoint, nil)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskTypeKey), DiskTypeToStr(diskType), nil)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskParentKey), parent, nil)
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etcdClient.Set(ctx.Background(), path.Join(diskKey, diskHasChildrenKey), strconv.Itoa(btoi(hasChildren)), nil)
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return DiskConfig{
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Name: name,
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UUID: uuid,
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Size: size,
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Rotational: rotational,
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Readonly: readonly,
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FileSystem: filesystem,
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MountPoint: mountPoint,
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Type: diskType,
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Parent: parent,
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HasChildren: hasChildren,
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}
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}
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