Golang State.ControllerUUID方法代碼示例

// getSecretKeyLoginResponsePayload returns the information required by the
// client to login to the controller securely.
func (h *registerUserHandler) getSecretKeyLoginResponsePayload(
	st *state.State, userTag names.UserTag,
) (*params.SecretKeyLoginResponsePayload, error) {
	if !st.IsController() {
		return nil, errors.New("state is not for a controller")
	}
	payload := params.SecretKeyLoginResponsePayload{
		CACert:         st.CACert(),
		ControllerUUID: st.ControllerUUID(),
	}
	return &payload, nil
}

// startStateWorkers returns a worker running all the workers that
// require a *state.State connection.
func (a *MachineAgent) startStateWorkers(st *state.State) (worker.Worker, error) {
	agentConfig := a.CurrentConfig()

	m, err := getMachine(st, agentConfig.Tag())
	if err != nil {
		return nil, errors.Annotate(err, "machine lookup")
	}

	runner := newConnRunner(st)
	singularRunner, err := newSingularStateRunner(runner, st, m)
	if err != nil {
		return nil, errors.Trace(err)
	}

	for _, job := range m.Jobs() {
		switch job {
		case state.JobHostUnits:
			// Implemented elsewhere with workers that use the API.
		case state.JobManageModel:
			useMultipleCPUs()
			a.startWorkerAfterUpgrade(runner, "model worker manager", func() (worker.Worker, error) {
				w, err := modelworkermanager.New(modelworkermanager.Config{
					ControllerUUID: st.ControllerUUID(),
					Backend:        st,
					NewWorker:      a.startModelWorkers,
					ErrorDelay:     worker.RestartDelay,
				})
				if err != nil {
					return nil, errors.Annotate(err, "cannot start model worker manager")
				}
				return w, nil
			})
			a.startWorkerAfterUpgrade(runner, "peergrouper", func() (worker.Worker, error) {
				env, err := stateenvirons.GetNewEnvironFunc(environs.New)(st)
				if err != nil {
					return nil, errors.Annotate(err, "getting environ from state")
				}
				supportsSpaces := environs.SupportsSpaces(env)
				w, err := peergrouperNew(st, supportsSpaces)
				if err != nil {
					return nil, errors.Annotate(err, "cannot start peergrouper worker")
				}
				return w, nil
			})
			a.startWorkerAfterUpgrade(runner, "restore", func() (worker.Worker, error) {
				w, err := a.newRestoreStateWatcherWorker(st)
				if err != nil {
					return nil, errors.Annotate(err, "cannot start backup-restorer worker")
				}
				return w, nil
			})
			a.startWorkerAfterUpgrade(runner, "mongoupgrade", func() (worker.Worker, error) {
				return newUpgradeMongoWorker(st, a.machineId, a.maybeStopMongo)
			})

			// certChangedChan is shared by multiple workers it's up
			// to the agent to close it rather than any one of the
			// workers.  It is possible that multiple cert changes
			// come in before the apiserver is up to receive them.
			// Specify a bigger buffer to prevent deadlock when
			// the apiserver isn't up yet.  Use a size of 10 since we
			// allow up to 7 controllers, and might also update the
			// addresses of the local machine (127.0.0.1, ::1, etc).
			//
			// TODO(cherylj/waigani) Remove this workaround when
			// certupdater and apiserver can properly manage dependencies
			// through the dependency engine.
			//
			// TODO(ericsnow) For now we simply do not close the channel.
			certChangedChan := make(chan params.StateServingInfo, 10)
			// Each time apiserver worker is restarted, we need a fresh copy of state due
			// to the fact that state holds lease managers which are killed and need to be reset.
			stateOpener := func() (*state.State, error) {
				logger.Debugf("opening state for apiserver worker")
				st, _, err := openState(agentConfig, stateWorkerDialOpts)
				return st, err
			}
			runner.StartWorker("apiserver", a.apiserverWorkerStarter(stateOpener, certChangedChan))
			var stateServingSetter certupdater.StateServingInfoSetter = func(info params.StateServingInfo, done <-chan struct{}) error {
				return a.ChangeConfig(func(config agent.ConfigSetter) error {
					config.SetStateServingInfo(info)
					logger.Infof("update apiserver worker with new certificate")
					select {
					case certChangedChan <- info:
						return nil
					case <-done:
						return nil
					}
				})
			}
			a.startWorkerAfterUpgrade(runner, "certupdater", func() (worker.Worker, error) {
				return newCertificateUpdater(m, agentConfig, st, st, stateServingSetter), nil
			})

			a.startWorkerAfterUpgrade(singularRunner, "dblogpruner", func() (worker.Worker, error) {
				return dblogpruner.New(st, dblogpruner.NewLogPruneParams()), nil
			})

//.........這裏部分代碼省略.........