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- package container
- import (
- "github.com/docker/docker/api/types"
- "github.com/sirupsen/logrus"
- )
- // Health holds the current container health-check state
- type Health struct {
- types.Health
- stop chan struct{} // Write struct{} to stop the monitor
- }
- // 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 {
- logrus.Debug("OpenMonitorChannel")
- 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")
- close(s.stop)
- s.stop = nil
- // unhealthy when the monitor has stopped for compatibility reasons
- s.Status = types.Unhealthy
- logrus.Debug("CloseMonitorChannel done")
- }
- }
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