diskmetrics

func ApplySnapshot ¶

func ApplySnapshot(ctx context.Context, log *base.LogObject, diskfile, snapshotName string) error

ApplySnapshot applies snapshot to diskfile

func CheckResizeDisk ¶

func CheckResizeDisk(log *base.LogObject, diskfile string, maxsizebytes uint64) (uint64, bool, error)

CheckResizeDisk returns size and indicates do we need to resize disk to be at least maxsizebytes

func CreateImg ¶

func CreateImg(ctx context.Context, log *base.LogObject, diskfile string, format string, size uint64) error

CreateImg creates empty diskfile with defined format and size

func CreateSnapshot ¶

func CreateSnapshot(ctx context.Context, log *base.LogObject, diskfile, snapshotName string) error

CreateSnapshot creates snapshot of diskfile with defined format and size

func DeleteSnapshot ¶

func DeleteSnapshot(ctx context.Context, log *base.LogObject, diskfile, snapshotName string) error

DeleteSnapshot deletes snapshot with a given name created for a given diskfile

func DirUsage ¶

func DirUsage(log *base.LogObject, dir string) (uint64, error)

DirUsage calculates usage of directory it checks if provided directory is zfs mountpoint and take usage from zfs in that case

func Dom0DiskReservedSize ¶

func Dom0DiskReservedSize(log *base.LogObject, globalConfig *types.ConfigItemValueMap, deviceDiskSize uint64) uint64

Dom0DiskReservedSize returns reserved space for EVE-OS

func FindDisksPartitions ¶

func FindDisksPartitions(log *base.LogObject) []string

FindDisksPartitions returns the names of all disks and all partitions Return an array of names like "sda", "sdb1"

func FindLargestDisk ¶

func FindLargestDisk(log *base.LogObject) string

FindLargestDisk determines the name of the largest disk The assumption is that this is not a removalable disk like a USB disk with the installer image

func GetDiskActualSize ¶

func GetDiskActualSize(log *base.LogObject, diskfile string) (uint64, error)

GetDiskActualSize - returns ActualSize of the image

func GetDiskVirtualSize ¶

func GetDiskVirtualSize(log *base.LogObject, diskfile string) (uint64, error)

GetDiskVirtualSize - returns VirtualSize of the image

func GetImgInfo ¶

func GetImgInfo(log *base.LogObject, diskfile string) (*types.ImgInfo, error)

func PartitionSize ¶

func PartitionSize(log *base.LogObject, part string) (uint64, bool)

PartitionSize - Given "sdb1" return the size of the partition; "sdb" to size of disk. Returns size and a bool to indicate that it is a partition.

func PersistUsageStat ¶

func PersistUsageStat(log *base.LogObject) (*types.UsageStat, error)

PersistUsageStat returns usage stat for persist We need to handle ZFS differently since the mounted /persist does not indicate usage of zvols and snapshots Note that we subtract usage of persist/reserved dataset (about 20% of persist capacity)

func ResizeImg ¶

func ResizeImg(ctx context.Context, log *base.LogObject, diskfile string, newsize uint64) error

ResizeImg calls qemu-img to resize disk file to new size

func RolloutImgToBlock ¶

func RolloutImgToBlock(ctx context.Context, log *base.LogObject, diskfile, outputFile, outputFormat string) error

RolloutImgToBlock do conversion of diskfile to outputFile with defined format

func SizeFromDir ¶

func SizeFromDir(log *base.LogObject, dirname string) (uint64, error)

SizeFromDir performs a du -s equivalent operation. Didn't use os.ReadDir and filepath.Walk because they sort (quick_sort) all files per directory which is an unnecessary costly operation.

func StatAllocatedBytes ¶

func StatAllocatedBytes(path string) (uint64, error)

StatAllocatedBytes returns the allocated size of a file in bytes This value will be less than fileInfo.Size() for thinly allocated files