Golang api.State类代码示例

// updateAllMachines finds all machines and resets the stored state address
// in each of them. The address does not include the port.
func updateAllMachines(apiState *api.State, stateAddr string) ([]restoreResult, error) {
	client := apiState.Client()
	status, err := client.Status(nil)
	if err != nil {
		return nil, errors.Annotate(err, "cannot get status")
	}
	pendingMachineCount := 0
	done := make(chan restoreResult)

	for _, machineStatus := range status.Machines {
		// A newly resumed state server requires no updating, and more
		// than one state server is not yet support by this plugin.
		if machineStatus.HasVote || machineStatus.WantsVote || machineStatus.Life == "dead" {
			continue
		}
		pendingMachineCount++
		machine := machineStatus
		go func() {
			err := runMachineUpdate(client, machine.Id, setAgentAddressScript(stateAddr))
			if err != nil {

				logger.Errorf("failed to update machine %s: %v", machine.Id, err)
			} else {
				progress("updated machine %s", machine.Id)
			}
			r := restoreResult{machineName: machine.Id, err: err}
			done <- r
		}()
	}
	results := make([]restoreResult, pendingMachineCount)
	for ; pendingMachineCount > 0; pendingMachineCount-- {
		results[pendingMachineCount-1] = <-done
	}
	return results, nil
}

func restoreBootstrapMachine(st *api.State, backupFile string, agentConf agentConfig) (addr string, err error) {
	client := st.Client()
	addr, err = client.PublicAddress("0")
	if err != nil {
		return "", errors.Annotate(err, "cannot get public address of bootstrap machine")
	}
	paddr, err := client.PrivateAddress("0")
	if err != nil {
		return "", errors.Annotate(err, "cannot get private address of bootstrap machine")
	}
	status, err := client.Status(nil)
	if err != nil {
		return "", errors.Annotate(err, "cannot get environment status")
	}
	info, ok := status.Machines["0"]
	if !ok {
		return "", fmt.Errorf("cannot find bootstrap machine in status")
	}
	newInstId := instance.Id(info.InstanceId)

	progress("copying backup file to bootstrap host")
	if err := sendViaScp(backupFile, addr, "~/juju-backup.tgz"); err != nil {
		return "", errors.Annotate(err, "cannot copy backup file to bootstrap instance")
	}
	progress("updating bootstrap machine")
	if err := runViaSsh(addr, updateBootstrapMachineScript(newInstId, agentConf, addr, paddr)); err != nil {
		return "", errors.Annotate(err, "update script failed")
	}
	return addr, nil
}

// testNamespace starts a worker and ensures that
// the rsyslog config file has the expected filename,
// and the appropriate log dir is used.
func (s *RsyslogSuite) testNamespace(c *gc.C, st *api.State, tag names.Tag, namespace, expectedFilename, expectedLogDir string) {
	restarted := make(chan struct{}, 2) // once for create, once for teardown
	s.PatchValue(rsyslog.RestartRsyslog, func() error {
		restarted <- struct{}{}
		return nil
	})

	err := os.MkdirAll(expectedLogDir, 0755)
	c.Assert(err, jc.ErrorIsNil)
	worker, err := rsyslog.NewRsyslogConfigWorker(st.Rsyslog(), rsyslog.RsyslogModeAccumulate, tag, namespace, []string{"0.1.2.3"})
	c.Assert(err, jc.ErrorIsNil)
	defer func() { c.Assert(worker.Wait(), gc.IsNil) }()
	defer worker.Kill()

	// change the API HostPorts to trigger an rsyslog restart
	newHostPorts := network.NewHostPorts(6541, "127.0.0.1")
	err = s.State.SetAPIHostPorts([][]network.HostPort{newHostPorts})
	c.Assert(err, jc.ErrorIsNil)

	// Wait for rsyslog to be restarted, so we can check to see
	// what the name of the config file is.
	waitForRestart(c, restarted)

	// Ensure that ca-cert.pem gets written to the expected log dir.
	waitForFile(c, filepath.Join(expectedLogDir, "ca-cert.pem"))

	dir, err := os.Open(*rsyslog.RsyslogConfDir)
	c.Assert(err, jc.ErrorIsNil)
	names, err := dir.Readdirnames(-1)
	dir.Close()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(names, gc.HasLen, 1)
	c.Assert(names[0], gc.Equals, expectedFilename)
}

// updateAllMachines finds all machines and resets the stored state address
// in each of them. The address does not include the port.
func updateAllMachines(apiState *api.State, stateAddr string) error {
	client := apiState.Client()
	status, err := client.Status(nil)
	if err != nil {
		return errors.Annotate(err, "cannot get status")
	}
	pendingMachineCount := 0
	done := make(chan error)
	for _, machineStatus := range status.Machines {
		// A newly resumed state server requires no updating, and more
		// than one state server is not yet support by this plugin.
		if machineStatus.HasVote || machineStatus.WantsVote || params.Life(machineStatus.Life) == params.Dead {
			continue
		}
		pendingMachineCount++
		machine := machineStatus
		go func() {
			err := runMachineUpdate(client, machine.Id, setAgentAddressScript(stateAddr))
			if err != nil {
				logger.Errorf("failed to update machine %s: %v", machine.Id, err)
			} else {
				progress("updated machine %s", machine.Id)
			}
			done <- err
		}()
	}
	err = nil
	for ; pendingMachineCount > 0; pendingMachineCount-- {
		if updateErr := <-done; updateErr != nil && err == nil {
			err = errors.Annotate(updateErr, "machine update failed")
		}
	}
	return err
}

func opClientAddServiceUnits(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	_, err := st.Client().AddServiceUnits("nosuch", 1, "")
	if params.IsCodeNotFound(err) {
		err = nil
	}
	return func() {}, err
}

func opClientServiceDestroy(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	err := st.Client().ServiceDestroy("non-existent")
	if params.IsCodeNotFound(err) {
		err = nil
	}
	return func() {}, err
}

func opClientDestroyServiceUnits(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	err := st.Client().DestroyServiceUnits("wordpress/99")
	if err != nil && strings.HasPrefix(err.Error(), "no units were destroyed") {
		err = nil
	}
	return func() {}, err
}

func opClientServiceUnexpose(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	err := st.Client().ServiceUnexpose("wordpress")
	if err != nil {
		return func() {}, err
	}
	return func() {}, nil
}

func opClientEnvironmentGet(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	_, err := st.Client().EnvironmentGet()
	if err != nil {
		return func() {}, err
	}
	return func() {}, nil
}

func opClientServiceSetYAML(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	err := st.Client().ServiceSetYAML("wordpress", `"wordpress": {"blog-title": "foo"}`)
	if err != nil {
		return func() {}, err
	}
	return resetBlogTitle(c, st), nil
}

func opClientWatchAll(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	watcher, err := st.Client().WatchAll()
	if err == nil {
		watcher.Stop()
	}
	return func() {}, err
}

func opClientDestroyRelation(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	err := st.Client().DestroyRelation("nosuch1", "nosuch2")
	if params.IsCodeNotFound(err) {
		err = nil
	}
	return func() {}, err
}

func (s *workerSuite) SetUpTest(c *gc.C) {
	//TODO(bogdanteleaga): Fix this on windows
	if runtime.GOOS == "windows" {
		c.Skip("bug 1403084: authentication worker not implemented yet on windows")
	}
	s.JujuConnSuite.SetUpTest(c)
	// Default ssh user is currently "ubuntu".
	c.Assert(authenticationworker.SSHUser, gc.Equals, "ubuntu")
	// Set the ssh user to empty (the current user) as required by the test infrastructure.
	s.PatchValue(&authenticationworker.SSHUser, "")

	// Replace the default dummy key in the test environment with a valid one.
	// This will be added to the ssh authorised keys when the agent starts.
	s.setAuthorisedKeys(c, sshtesting.ValidKeyOne.Key+" [email protected]")
	// Record the existing key with its prefix for testing later.
	s.existingEnvKey = sshtesting.ValidKeyOne.Key + " Juju:[email protected]"

	// Set up an existing key (which is not in the environment) in the ssh authorised_keys file.
	s.existingKeys = []string{sshtesting.ValidKeyTwo.Key + " [email protected]"}
	err := ssh.AddKeys(authenticationworker.SSHUser, s.existingKeys...)
	c.Assert(err, jc.ErrorIsNil)

	var apiRoot *api.State
	apiRoot, s.machine = s.OpenAPIAsNewMachine(c)
	c.Assert(apiRoot, gc.NotNil)
	s.keyupdaterApi = apiRoot.KeyUpdater()
	c.Assert(s.keyupdaterApi, gc.NotNil)
}

func opClientServiceSetCharm(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	err := st.Client().ServiceSetCharm("nosuch", "local:quantal/wordpress", false)
	if params.IsCodeNotFound(err) {
		err = nil
	}
	return func() {}, err
}

func opClientServiceDeployWithNetworks(c *gc.C, st *api.State, mst *state.State) (func(), error) {
	err := st.Client().ServiceDeployWithNetworks("mad:bad/url-1", "x", 1, "", constraints.Value{}, "", nil)
	if err.Error() == `charm URL has invalid schema: "mad:bad/url-1"` {
		err = nil
	}
	return func() {}, err
}