chaoskube

Documentation

Index

• Variables
• type Chaoskube
  • func New(client kubernetes.Interface, labels, annotations, namespaces labels.Selector, ...) *Chaoskube
  • func (c *Chaoskube) Candidates() ([]v1.Pod, error)
  • func (c *Chaoskube) DeletePod(victim v1.Pod) error
  • func (c *Chaoskube) TerminateVictim() error
  • func (c *Chaoskube) Victim() (v1.Pod, error)

Variables

var ErrPodNotFound = errors.New("pod not found")

ErrPodNotFound is returned when no victim could be found

Types

type Chaoskube

type Chaoskube struct {
	// a kubernetes client object
	Client kubernetes.Interface
	// a label selector which restricts the pods to choose from
	Labels labels.Selector
	// an annotation selector which restricts the pods to choose from
	Annotations labels.Selector
	// a namespace selector which restricts the pods to choose from
	Namespaces labels.Selector
	// an instance of logrus.StdLogger to write log messages to
	Logger log.StdLogger
	// dry run will not allow any pod terminations
	DryRun bool
	// seed value for the randomizer
	Seed int64
}

Chaoskube represents an instance of chaoskube

func New

func New(client kubernetes.Interface, labels, annotations, namespaces labels.Selector, logger log.StdLogger, dryRun bool, seed int64) *Chaoskube

New returns a new instance of Chaoskube. It expects a kubernetes client, a label and namespace selector to reduce the amount of affected pods as well as whether to enable dryRun mode and a seed to seed the randomizer with.

func (*Chaoskube) Candidates

func (c *Chaoskube) Candidates() ([]v1.Pod, error)

Candidates returns the list of pods that are available for termination. It returns all pods matching the label selector and at least one namespace.

func (*Chaoskube) DeletePod

func (c *Chaoskube) DeletePod(victim v1.Pod) error

DeletePod deletes the passed in pod iff dry run mode is enabled.

func (*Chaoskube) TerminateVictim

func (c *Chaoskube) TerminateVictim() error

TerminateVictim picks and deletes a victim if found.

func (*Chaoskube) Victim

func (c *Chaoskube) Victim() (v1.Pod, error)

Victim returns a random pod from the list of Candidates.