quota

package
v0.0.0-...-a79519d Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jun 14, 2018 License: Apache-2.0 Imports: 17 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// QuotaMinID represents the minimize quota id.
	QuotaMinID = uint32(16777216)
)

Variables

View Source 
var (
	// UseQuota represents use quota or not.
	UseQuota = true
	// Gquota represents global quota.
	Gquota = NewQuota("")
)

Functions

func CheckMountpoint 

func CheckMountpoint(devID uint64) (string, bool, string)

CheckMountpoint is used to check mount point.

func GetDefaultQuota 

func GetDefaultQuota(quotas map[string]string) string

GetDefaultQuota returns the default quota size.

func GetDevID 

func GetDevID(dir string) (uint64, error)

GetDevID returns device id.

func GetFileAttr 

func GetFileAttr(dir string) uint32

GetFileAttr returns the directory attributes.

func GetNextQuatoID 

func GetNextQuatoID() (uint32, error)

GetNextQuatoID returns the next available quota id.

func SetDiskQuota 

func SetDiskQuota(dir string, size string, quotaID uint32) error

SetDiskQuota is used to set quota for directory.

func SetFileAttr 

func SetFileAttr(dir string, id uint32) error

SetFileAttr is used to set file attributes.

func SetFileAttrNoOutput 

func SetFileAttrNoOutput(dir string, id uint32)

SetFileAttrNoOutput is used to set file attributes without error.

func SetQuotaDriver 

func SetQuotaDriver(name string)

SetQuotaDriver is used to set global quota driver.

func SetRootfsDiskQuota 

func SetRootfsDiskQuota(basefs, size string, quotaID uint32) error

SetRootfsDiskQuota is to set container rootfs dir disk quota.

func SetSubtree 

func SetSubtree(dir string, qid uint32) (uint32, error)

SetSubtree is used to set quota id for directory.

func StartQuotaDriver 

func StartQuotaDriver(dir string) (string, error)

StartQuotaDriver is used to start quota driver.

Types

type BaseQuota 

type BaseQuota interface {
	StartQuotaDriver(dir string) (string, error)
	SetSubtree(dir string, qid uint32) (uint32, error)
	SetDiskQuota(dir string, size string, quotaID uint32) error
	CheckMountpoint(devID uint64) (string, bool, string)
	GetFileAttr(dir string) uint32
	SetFileAttr(dir string, id uint32) error
	SetFileAttrNoOutput(dir string, id uint32)
	GetNextQuatoID() (uint32, error)
}

BaseQuota defines the quota operation interface.

func NewQuota 

func NewQuota(name string) BaseQuota

NewQuota returns a quota instance.

type GrpQuota 

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

GrpQuota represents group quota.

func (*GrpQuota) CheckMountpoint 

func (quota *GrpQuota) CheckMountpoint(devID uint64) (string, bool, string)

CheckMountpoint is used to check mount point. cat /proc/mounts as follows: /dev/sda3 / ext4 rw,relatime,data=ordered 0 0 /dev/sda2 /boot/grub2 ext4 rw,relatime,stripe=4,data=ordered 0 0 /dev/sda5 /home ext4 rw,relatime,data=ordered 0 0 /dev/sdb1 /home/pouch ext4 rw,relatime,grpquota,data=ordered 0 0 tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0 tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0 cgroup /sys/fs/cgroup/cpuset,cpu,cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct,cpu,cpuset 0 0 cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0 cgroup /sys/fs/cgroup/memory cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0 cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0

func (*GrpQuota) GetFileAttr 

func (quota *GrpQuota) GetFileAttr(dir string) uint32

GetFileAttr returns the directory attributes getfattr -n system.subtree --only-values --absolute-names /

func (*GrpQuota) GetNextQuatoID 

func (quota *GrpQuota) GetNextQuatoID() (uint32, error)

GetNextQuatoID returns the next available quota id.

func (*GrpQuota) SetDiskQuota 

func (quota *GrpQuota) SetDiskQuota(dir string, size string, quotaID uint32) error

SetDiskQuota is used to set quota for directory.

func (*GrpQuota) SetFileAttr 

func (quota *GrpQuota) SetFileAttr(dir string, id uint32) error

SetFileAttr is used to set file attributes.

func (*GrpQuota) SetFileAttrNoOutput 

func (quota *GrpQuota) SetFileAttrNoOutput(dir string, id uint32)

SetFileAttrNoOutput is used to set file attributes without error.

func (*GrpQuota) SetSubtree 

func (quota *GrpQuota) SetSubtree(dir string, qid uint32) (uint32, error)

SetSubtree is used to set quota id for directory, setfattr -n system.subtree -v $QUOTAID

func (*GrpQuota) StartQuotaDriver 

func (quota *GrpQuota) StartQuotaDriver(dir string) (string, error)

StartQuotaDriver is used to start quota driver.

type OverlayMount 

type OverlayMount struct {
	Merged string
	Lower  string
	Upper  string
	Work   string
}

OverlayMount represents the parameters of overlay mount.

type PrjQuota 

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

PrjQuota represents project quota.

func (*PrjQuota) CheckMountpoint 

func (quota *PrjQuota) CheckMountpoint(devID uint64) (string, bool, string)

CheckMountpoint is used to check mount point. cat /proc/mounts as follows: /dev/sda3 / ext4 rw,relatime,data=ordered 0 0 /dev/sda2 /boot/grub2 ext4 rw,relatime,stripe=4,data=ordered 0 0 /dev/sda5 /home ext4 rw,relatime,data=ordered 0 0 /dev/sdb1 /home/pouch ext4 rw,relatime,prjquota,data=ordered 0 0 tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0 tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0 cgroup /sys/fs/cgroup/cpuset,cpu,cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct,cpu,cpuset 0 0 cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0 cgroup /sys/fs/cgroup/memory cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0 cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0

func (*PrjQuota) GetFileAttr 

func (quota *PrjQuota) GetFileAttr(dir string) uint32

GetFileAttr returns the directory attributes lsattr -p $dir

func (*PrjQuota) GetNextQuatoID 

func (quota *PrjQuota) GetNextQuatoID() (uint32, error)

GetNextQuatoID returns the next available quota id.

func (*PrjQuota) SetDiskQuota 

func (quota *PrjQuota) SetDiskQuota(dir string, size string, quotaID uint32) error

SetDiskQuota is used to set quota for directory.

func (*PrjQuota) SetFileAttr 

func (quota *PrjQuota) SetFileAttr(dir string, id uint32) error

SetFileAttr is used to set file attributes.

func (*PrjQuota) SetFileAttrNoOutput 

func (quota *PrjQuota) SetFileAttrNoOutput(dir string, id uint32)

SetFileAttrNoOutput is used to set file attributes without error.

func (*PrjQuota) SetSubtree 

func (quota *PrjQuota) SetSubtree(dir string, qid uint32) (uint32, error)

SetSubtree is used to set quota id for directory, chattr -p qid +P $QUOTAID

func (*PrjQuota) StartQuotaDriver 

func (quota *PrjQuota) StartQuotaDriver(dir string) (string, error)

StartQuotaDriver is used to start quota driver.

type RegExp 

type RegExp struct {
	Pattern *regexp.Regexp
	Path    string
	Size    string
}

RegExp defines the regular expression of disk quota.

Source Files

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