operator

Documentation

Overview

Package operator contains main implementation of Flatcar Linux Update Operator.

Index

• type Config
• type Kontroller
  • func New(config Config) (*Kontroller, error)
  • func (k *Kontroller) Run(stop <-chan struct{}) error
• type Period
• type Periodic
  • func ParsePeriodic(start, duration string) (*Periodic, error)
  • func (pc *Periodic) DurationToStart(ref time.Time) time.Duration
  • func (pc *Periodic) Next(ref time.Time) *Period
  • func (pc *Periodic) Previous(ref time.Time) *Period

Types

type Config

type Config struct {
	// Kubernetes client.
	Client kubernetes.Interface
	// Annotations to look for before and after reboots.
	BeforeRebootAnnotations []string
	AfterRebootAnnotations  []string
	// Reboot window.
	RebootWindowStart    string
	RebootWindowLength   string
	Namespace            string
	LockID               string
	LockType             string
	ReconciliationPeriod time.Duration
	LeaderElectionLease  time.Duration
	MaxRebootingNodes    int
}

Config configures a Kontroller.

type Kontroller

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

Kontroller implement operator part of FLUO.

func New

func New(config Config) (*Kontroller, error)

New initializes a new Kontroller.

func (*Kontroller) Run

func (k *Kontroller) Run(stop <-chan struct{}) error

Run starts the operator reconcilitation process and runs until the stop channel is closed.

type Period

type Period struct {
	Start time.Time
	End   time.Time
}

Period is a span of time from Start to End.

type Periodic

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

Periodic keeps track of a repeating period of time.

func ParsePeriodic

func ParsePeriodic(start, duration string) (*Periodic, error)

ParsePeriodic returns a Periodic specified as a start and duration.

func (*Periodic) DurationToStart

func (pc *Periodic) DurationToStart(ref time.Time) time.Duration

DurationToStart returns the duration between the supplied time and the start of Periodic's relevant period. If we're in a period, a value <= 0 is returned, indicating how deep into period we are. If we're outside a period, a value > 0 is returned, indicating how long before the next period starts.

func (*Periodic) Next

func (pc *Periodic) Next(ref time.Time) *Period

Next returns Periodic's next Period occurrence relative to ref.

func (*Periodic) Previous

func (pc *Periodic) Previous(ref time.Time) *Period

Previous returns Periodic's previous Period occurrence relative to ref.