cgroup

Documentation

Index

• func CreateCgroups(root string, subcgroup string, serviceNames []string) error
• func GetOwnCgroupPath(controller string) (string, error)
• func IsIsolatorSupported(isolator string) bool
• func MaybeAddIsolator(opts []*unit.UnitOption, isolator string, limit *resource.Quantity) ([]*unit.UnitOption, error)

Functions

func CreateCgroups

func CreateCgroups(root string, subcgroup string, serviceNames []string) error

CreateCgroups mounts the cgroup controllers hierarchy for the container but leaves the subcgroup for each app read-write so the systemd inside stage1 can apply isolators to them

func GetOwnCgroupPath

func GetOwnCgroupPath(controller string) (string, error)

GetOwnCgroupPath returns the cgroup path of this process in controller hierarchy

func IsIsolatorSupported

func IsIsolatorSupported(isolator string) bool

IsIsolatorSupported returns whether an isolator is supported in the kernel

func MaybeAddIsolator

func MaybeAddIsolator(opts []*unit.UnitOption, isolator string, limit *resource.Quantity) ([]*unit.UnitOption, error)

MaybeAddIsolator considers the given isolator; if the type is known (i.e. IsIsolatorSupported is true) and the limit is non-nil, the supplied opts will be extended with an appropriate option implementing the desired isolation.