preflight

type DirAvailableCheck ¶

type DirAvailableCheck struct {
	Path string
}

DirAvailableCheck checks if the given directory either does not exist, or is empty.

func (dac DirAvailableCheck) Check() (warnings, errors []error)

type FileAvailableCheck ¶

type FileAvailableCheck struct {
	Path string
}

FileAvailableCheck checks that the given file does not already exist.

func (fac FileAvailableCheck) Check() (warnings, errors []error)

type HostnameCheck ¶

type HostnameCheck struct{}

HostnameCheck checks if hostname match dns sub domain regex. If hostname doesn't match this regex, kubelet will not launch static pods like kube-apiserver/kube-controller-manager and so on.

func (hc HostnameCheck) Check() (warnings, errors []error)

type HttpProxyCheck ¶

type HttpProxyCheck struct {
	Proto string
	Host  string
	Port  int
}

HttpProxyCheck checks if https connection to specific host is going to be done directly or over proxy. If proxy detected, it will return warning.

func (hst HttpProxyCheck) Check() (warnings, errors []error)

type InPathCheck ¶

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

InPathChecks checks if the given executable is present in the path.

func (ipc InPathCheck) Check() (warnings, errors []error)

type IsRootCheck ¶

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

IsRootCheck verifies user is root

func (irc IsRootCheck) Check() (warnings, errors []error)

type PortOpenCheck ¶

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

PortOpenCheck ensures the given port is available for use.

func (poc PortOpenCheck) Check() (warnings, errors []error)

type PreFlightCheck ¶

type PreFlightCheck interface {
	Check() (warnings, errors []error)
}

PreFlightCheck validates the state of the system to ensure kubeadm will be successful as often as possilble.

type PreFlightError ¶

type PreFlightError struct {
	Msg string
}

func (e *PreFlightError) Error() string

type ServiceCheck ¶

type ServiceCheck struct {
	Service string
}

ServiceCheck verifies that the given service is enabled and active. If we do not detect a supported init system however, all checks are skipped and a warning is returned.

func (sc ServiceCheck) Check() (warnings, errors []error)