watcher

Documentation

Index

• Variables
• type Conf
• type MetadataWatcher
  • func NewSSHWatcher(cfg *Conf) MetadataWatcher
  • func NewWebBasedWatcher(_ *Conf) MetadataWatcher

Variables

var (
	ErrFetchMetadataFailed  = errors.New("failed to fetch rmetadata")
	ErrNoRegisteredActioner = errors.New("no registered actioners")
)

Possible Errors

Types

type Conf

type Conf struct {
	SSHPort int
}

Conf contains configurations for a watcher

type MetadataWatcher

type MetadataWatcher interface {
	RegisterActioner(actioner actioner.MetadataActioner)
	Run() error
	Shutdown()
}

MetadataWatcher watches for metadata changes of the given droplet, It notifies every registered actioner when it detects any metadata changes.

func NewSSHWatcher

func NewSSHWatcher(cfg *Conf) MetadataWatcher

NewSSHWatcher creates a new metadata watcher that is based on watching port knocking messages on port 22

func NewWebBasedWatcher

func NewWebBasedWatcher(_ *Conf) MetadataWatcher

NewWebBasedWatcher creates a new metadata watcher that is based on a webserver