balloon

Documentation

Overview

Package balloon provides an automatic libvirt memory balloon daemon.

Index

• type Balloon
  • func New(conn net.Conn) Balloon
  • func (balloon Balloon) ProcessDomain(dom libvirt.Domain)
  • func (balloon Balloon) RunDaemon()

Types

type Balloon

type Balloon struct {
	Logger zerolog.Logger // Logger is the zerolog Logger. New creates a default, but feel free to override it.

	Interval time.Duration // Interval is the interval at which the daemon should refresh all domain balloons.
	DryRun   bool          // DryRun effectively pretends running actions like DomainSetMemory, but doesn't.

	FreeAllowance uint64 // FreeAllowance is the amount of memory, in kB, to allow the VM to have available.
	MemoryChunk   uint64 // MemoryChunk is the chunk size of memory (in kB) to allocate or deallocate. This is a granularity slider.
	// contains filtered or unexported fields
}

Balloon describes a hypervisor memory balloon interface.

func New

func New(conn net.Conn) Balloon

New creates a Balloon from a net.Conn and populates its settings with default values.

func (Balloon) ProcessDomain

func (balloon Balloon) ProcessDomain(dom libvirt.Domain)

ProcessDomain will process a domain's memory balloon and log to Balloon.Logger.

func (Balloon) RunDaemon

func (balloon Balloon) RunDaemon()

RunDaemon simply runs ProcessDomain for every domain in the libvirt connection every Interval.