disk

package
v2.224.0+incompatible Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jun 4, 2019 License: Apache-2.0 Imports: 12 Imported by: 0

Documentation

Index

Constants

View Source 
const MaxFdiskPartitionSize = uint64(2 * 1024 * 1024 * 1024 * 1024)

Variables

View Source 
var ErrGPTPartitionEncountered = errors.New("sfdisk detected a GPT partition")

Functions

func ConvertFromBytesToMb 

func ConvertFromBytesToMb(sizeInBytes uint64) uint64

func ConvertFromKbToBytes 

func ConvertFromKbToBytes(sizeInKb uint64) uint64

func ConvertFromMbToBytes 

func ConvertFromMbToBytes(sizeInMb uint64) uint64

func IsGPTError 

func IsGPTError(err error) bool

func NewPartitionStrategy 

func NewPartitionStrategy(
	retryable boshretry.Retryable,
	timeService clock.Clock,
	logger boshlog.Logger,
) boshretry.RetryStrategy

Types

type EphemeralDevicePartitioner 

type EphemeralDevicePartitioner struct {
	// contains filtered or unexported fields
}

func NewEphemeralDevicePartitioner 

func NewEphemeralDevicePartitioner(
	partedPartitioner Partitioner,
	logger boshlog.Logger,
	cmdRunner boshsys.CmdRunner,
) *EphemeralDevicePartitioner

func (*EphemeralDevicePartitioner) GetDeviceSizeInBytes 

func (p *EphemeralDevicePartitioner) GetDeviceSizeInBytes(devicePath string) (uint64, error)

func (*EphemeralDevicePartitioner) GetPartitions 

func (p *EphemeralDevicePartitioner) GetPartitions(devicePath string) (partitions []ExistingPartition, deviceFullSizeInBytes uint64, err error)

func (*EphemeralDevicePartitioner) Partition 

func (p *EphemeralDevicePartitioner) Partition(devicePath string, partitions []Partition) error

func (EphemeralDevicePartitioner) RemovePartitions 

func (p EphemeralDevicePartitioner) RemovePartitions(partitions []ExistingPartition, devicePath string) error

type ExistingPartition 

type ExistingPartition struct {
	Index        int
	SizeInBytes  uint64
	StartInBytes uint64
	EndInBytes   uint64
	Type         PartitionType
	Name         string
}

type FileSystemType 

type FileSystemType string
const (
	FileSystemSwap    FileSystemType = "swap"
	FileSystemExt4    FileSystemType = "ext4"
	FileSystemXFS     FileSystemType = "xfs"
	FileSystemDefault FileSystemType = ""
)

type Formatter 

type Formatter interface {
	Format(partitionPath string, fsType FileSystemType) (err error)
}

func NewLinuxFormatter 

func NewLinuxFormatter(runner boshsys.CmdRunner, fs boshsys.FileSystem) Formatter

type LinuxDiskManagerOpts 

type LinuxDiskManagerOpts struct {
	BindMount       bool
	PartitionerType string
}

type Manager 

type Manager interface {
	GetEphemeralDevicePartitioner() Partitioner
	GetFormatter() Formatter
	GetMounter() Mounter
	GetMountsSearcher() MountsSearcher
	GetPersistentDevicePartitioner(partitionerType string) (Partitioner, error)
	GetRootDevicePartitioner() Partitioner
	GetUtil() Util
}

func NewLinuxDiskManager 

func NewLinuxDiskManager(
	logger boshlog.Logger,
	runner boshsys.CmdRunner,
	fs boshsys.FileSystem,
	opts LinuxDiskManagerOpts,
) Manager

type Mount 

type Mount struct {
	PartitionPath string
	MountPoint    string
}

func (Mount) IsRoot 

func (m Mount) IsRoot() bool

type Mounter 

type Mounter interface {
	Mount(partitionPath, mountPoint string, mountOptions ...string) (err error)
	MountTmpfs(mountPoint string, size string) (err error)
	MountFilesystem(partitionPath, mountPoint, fstype string, mountOptions ...string) (err error)
	Unmount(partitionOrMountPoint string) (didUnmount bool, err error)

	RemountAsReadonly(mountPoint string) (err error)
	Remount(fromMountPoint, toMountPoint string, mountOptions ...string) (err error)
	RemountInPlace(mountPoint string, mountOptions ...string) (err error)

	SwapOn(partitionPath string) (err error)

	IsMountPoint(path string) (parititionPath string, result bool, err error)
	IsMounted(devicePathOrMountPoint string) (result bool, err error)
}

func NewLinuxBindMounter 

func NewLinuxBindMounter(delegateMounter Mounter) Mounter

func NewLinuxMounter 

func NewLinuxMounter(
	runner boshsys.CmdRunner,
	mountsSearcher MountsSearcher,
	unmountRetrySleep time.Duration,
) Mounter

type MountsSearcher 

type MountsSearcher interface {
	SearchMounts() ([]Mount, error)
}

func NewCmdMountsSearcher 

func NewCmdMountsSearcher(runner boshsys.CmdRunner) MountsSearcher

func NewProcMountsSearcher 

func NewProcMountsSearcher(fs boshsys.FileSystem) MountsSearcher

type Partition 

type Partition struct {
	NamePrefix  string
	SizeInBytes uint64
	Type        PartitionType
}

func (Partition) String 

func (p Partition) String() string

type PartitionType 

type PartitionType string
const (
	PartitionTypeSwap    PartitionType = "swap"
	PartitionTypeLinux   PartitionType = "linux"
	PartitionTypeEmpty   PartitionType = "empty"
	PartitionTypeUnknown PartitionType = "unknown"
	PartitionTypeGPT     PartitionType = "gpt"
)

type Partitioner 

type Partitioner interface {
	Partition(devicePath string, partitions []Partition) (err error)
	GetDeviceSizeInBytes(devicePath string) (size uint64, err error)
	GetPartitions(devicePath string) (partitions []ExistingPartition, deviceFullSizeInBytes uint64, err error)
	RemovePartitions(partitions []ExistingPartition, devicePath string) error
}

func NewPartedPartitioner 

func NewPartedPartitioner(logger boshlog.Logger, cmdRunner boshsys.CmdRunner, timeService clock.Clock) Partitioner

func NewRootDevicePartitioner 

func NewRootDevicePartitioner(logger boshlog.Logger, cmdRunner boshsys.CmdRunner, deltaInBytes uint64) Partitioner

func NewSfdiskPartitioner 

func NewSfdiskPartitioner(logger boshlog.Logger, cmdRunner boshsys.CmdRunner, timeService clock.Clock) Partitioner

type PersistentDevicePartitioner 

type PersistentDevicePartitioner struct {
	// contains filtered or unexported fields
}

func NewPersistentDevicePartitioner 

func NewPersistentDevicePartitioner(
	sfDiskPartitioner Partitioner,
	partedPartitioner Partitioner,
	deviceUtil Util,
	logger logger.Logger,
) *PersistentDevicePartitioner

func (*PersistentDevicePartitioner) GetDeviceSizeInBytes 

func (p *PersistentDevicePartitioner) GetDeviceSizeInBytes(devicePath string) (uint64, error)

func (*PersistentDevicePartitioner) GetPartitions 

func (p *PersistentDevicePartitioner) GetPartitions(devicePath string) (partitions []ExistingPartition, deviceFullSizeInBytes uint64, err error)

func (*PersistentDevicePartitioner) Partition 

func (p *PersistentDevicePartitioner) Partition(devicePath string, partitions []Partition) error

func (*PersistentDevicePartitioner) RemovePartitions 

func (p *PersistentDevicePartitioner) RemovePartitions(partitions []ExistingPartition, devicePath string) error

type Settings 

type Settings struct {
	AgentID string `json:"agent_id"`
}

type Util 

type Util interface {
	GetFilesContents(diskPath string, fileNames []string) (contents [][]byte, err error)
	GetBlockDeviceSize(diskPath string) (size uint64, err error)
}

func NewUtil 

func NewUtil(runner boshsys.CmdRunner, mounter Mounter, fs boshsys.FileSystem, logger boshlog.Logger) Util

Source Files

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Directories

Path Synopsis
Code generated by counterfeiter.
 Code generated by counterfeiter.

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