blob: 75365fec6b7b00de54b92aca26c58e00bfaee70b [file] [log] [blame]
package container
import (
// Health holds the current container health-check state
type Health struct {
stop chan struct{} // Write struct{} to stop the monitor
mu sync.Mutex
// String returns a human-readable description of the health-check state
func (s *Health) String() string {
// This happens when the monitor has yet to be setup.
if s.Status == "" {
return types.Unhealthy
switch s.Status {
case types.Starting:
return "health: starting"
default: // Healthy and Unhealthy are clear on their own
return s.Status
// OpenMonitorChannel creates and returns a new monitor channel. If there
// already is one, it returns nil.
func (s *Health) OpenMonitorChannel() chan struct{} {
if s.stop == nil {
s.stop = make(chan struct{})
return s.stop
return nil
// CloseMonitorChannel closes any existing monitor channel.
func (s *Health) CloseMonitorChannel() {
if s.stop != nil {
logrus.Debug("CloseMonitorChannel: waiting for probe to stop")
s.stop = nil
// unhealthy when the monitor has stopped for compatibility reasons
s.Status = types.Unhealthy
logrus.Debug("CloseMonitorChannel done")