Пример #1
0
func (s *ToolsSuite) testEnsureSymlinks(c *gc.C, dir string) {
	jujudPath := filepath.Join(s.toolsDir, names.Jujud)
	err := ioutil.WriteFile(jujudPath, []byte("assume sane"), 0755)
	c.Assert(err, jc.ErrorIsNil)

	assertLink := func(path string) time.Time {
		target, err := symlink.Read(path)
		c.Assert(err, jc.ErrorIsNil)
		c.Assert(target, jc.SamePath, jujudPath)
		fi, err := os.Lstat(path)
		c.Assert(err, jc.ErrorIsNil)
		return fi.ModTime()
	}

	// Check that EnsureSymlinks writes appropriate symlinks.
	err = jujuc.EnsureSymlinks(dir)
	c.Assert(err, jc.ErrorIsNil)
	mtimes := map[string]time.Time{}
	for _, name := range jujuc.CommandNames() {
		tool := filepath.Join(s.toolsDir, name)
		mtimes[tool] = assertLink(tool)
	}

	// Check that EnsureSymlinks doesn't overwrite things that don't need to be.
	err = jujuc.EnsureSymlinks(s.toolsDir)
	c.Assert(err, jc.ErrorIsNil)
	for tool, mtime := range mtimes {
		c.Assert(assertLink(tool), gc.Equals, mtime)
	}
}
Пример #2
0
func (u *Uniter) init(unitTag names.UnitTag) (err error) {
	u.unit, err = u.st.Unit(unitTag)
	if err != nil {
		return err
	}
	if u.unit.Life() == params.Dead {
		// If we started up already dead, we should not progress further. If we
		// become Dead immediately after starting up, we may well complete any
		// operations in progress before detecting it; but that race is fundamental
		// and inescapable, whereas this one is not.
		return worker.ErrTerminateAgent
	}
	if err = u.setupLocks(); err != nil {
		return err
	}
	if err := jujuc.EnsureSymlinks(u.paths.ToolsDir); err != nil {
		return err
	}
	if err := os.MkdirAll(u.paths.State.RelationsDir, 0755); err != nil {
		return errors.Trace(err)
	}
	relations, err := relation.NewRelations(
		u.st, unitTag, u.paths.State.CharmDir,
		u.paths.State.RelationsDir, u.catacomb.Dying(),
	)
	if err != nil {
		return errors.Annotatef(err, "cannot create relations")
	}
	u.relations = relations
	storageAttachments, err := storage.NewAttachments(
		u.st, unitTag, u.paths.State.StorageDir, u.catacomb.Dying(),
	)
	if err != nil {
		return errors.Annotatef(err, "cannot create storage hook source")
	}
	u.storage = storageAttachments
	u.commands = runcommands.NewCommands()
	u.commandChannel = make(chan string)

	deployer, err := charm.NewDeployer(
		u.paths.State.CharmDir,
		u.paths.State.DeployerDir,
		charm.NewBundlesDir(u.paths.State.BundlesDir, u.downloader),
	)
	if err != nil {
		return errors.Annotatef(err, "cannot create deployer")
	}
	u.deployer = &deployerProxy{deployer}
	contextFactory, err := context.NewContextFactory(
		u.st, unitTag, u.leadershipTracker, u.relations.GetInfo, u.storage, u.paths, u.clock,
	)
	if err != nil {
		return err
	}
	runnerFactory, err := runner.NewFactory(
		u.st, u.paths, contextFactory,
	)
	if err != nil {
		return errors.Trace(err)
	}
	u.operationFactory = operation.NewFactory(operation.FactoryParams{
		Deployer:       u.deployer,
		RunnerFactory:  runnerFactory,
		Callbacks:      &operationCallbacks{u},
		Abort:          u.catacomb.Dying(),
		MetricSpoolDir: u.paths.GetMetricsSpoolDir(),
	})

	operationExecutor, err := u.newOperationExecutor(u.paths.State.OperationsFile, u.getServiceCharmURL, u.acquireExecutionLock)
	if err != nil {
		return errors.Trace(err)
	}
	u.operationExecutor = operationExecutor

	logger.Debugf("starting juju-run listener on unix:%s", u.paths.Runtime.JujuRunSocket)
	commandRunner, err := NewChannelCommandRunner(ChannelCommandRunnerConfig{
		Abort:          u.catacomb.Dying(),
		Commands:       u.commands,
		CommandChannel: u.commandChannel,
	})
	if err != nil {
		return errors.Annotate(err, "creating command runner")
	}
	u.runListener, err = NewRunListener(RunListenerConfig{
		SocketPath:    u.paths.Runtime.JujuRunSocket,
		CommandRunner: commandRunner,
	})
	if err != nil {
		return errors.Trace(err)
	}
	rlw := newRunListenerWrapper(u.runListener)
	if err := u.catacomb.Add(rlw); err != nil {
		return errors.Trace(err)
	}
	// The socket needs to have permissions 777 in order for other users to use it.
	if jujuos.HostOS() != jujuos.Windows {
		return os.Chmod(u.paths.Runtime.JujuRunSocket, 0777)
	}
	return nil
}
Пример #3
0
func (u *Uniter) init(unitTag names.UnitTag) (err error) {
	u.unit, err = u.st.Unit(unitTag)
	if err != nil {
		return err
	}
	if u.unit.Life() == params.Dead {
		// If we started up already dead, we should not progress further. If we
		// become Dead immediately after starting up, we may well complete any
		// operations in progress before detecting it; but that race is fundamental
		// and inescapable, whereas this one is not.
		return worker.ErrTerminateAgent
	}
	if err = u.setupLocks(); err != nil {
		return err
	}
	if err := jujuc.EnsureSymlinks(u.paths.ToolsDir); err != nil {
		return err
	}
	if err := os.MkdirAll(u.paths.State.RelationsDir, 0755); err != nil {
		return errors.Trace(err)
	}
	relations, err := newRelations(u.st, unitTag, u.paths, u.tomb.Dying())
	if err != nil {
		return errors.Annotatef(err, "cannot create relations")
	}
	u.relations = relations
	storageAttachments, err := storage.NewAttachments(
		u.st, unitTag, u.paths.State.StorageDir, u.tomb.Dying(),
	)
	if err != nil {
		return errors.Annotatef(err, "cannot create storage hook source")
	}
	u.storage = storageAttachments
	u.addCleanup(storageAttachments.Stop)

	deployer, err := charm.NewDeployer(
		u.paths.State.CharmDir,
		u.paths.State.DeployerDir,
		charm.NewBundlesDir(u.paths.State.BundlesDir),
	)
	if err != nil {
		return errors.Annotatef(err, "cannot create deployer")
	}
	u.deployer = &deployerProxy{deployer}
	contextFactory, err := runner.NewContextFactory(
		u.st, unitTag, u.leadershipTracker, u.relations.GetInfo, u.storage, u.paths,
	)
	if err != nil {
		return err
	}
	runnerFactory, err := runner.NewFactory(
		u.st, u.paths, contextFactory,
	)
	if err != nil {
		return err
	}
	u.operationFactory = operation.NewFactory(operation.FactoryParams{
		Deployer:       u.deployer,
		RunnerFactory:  runnerFactory,
		Callbacks:      &operationCallbacks{u},
		StorageUpdater: u.storage,
		Abort:          u.tomb.Dying(),
		MetricSender:   u.unit,
		MetricSpoolDir: u.paths.GetMetricsSpoolDir(),
	})

	operationExecutor, err := u.newOperationExecutor(u.paths.State.OperationsFile, u.getServiceCharmURL, u.acquireExecutionLock)
	if err != nil {
		return err
	}
	u.operationExecutor = operationExecutor

	logger.Debugf("starting juju-run listener on unix:%s", u.paths.Runtime.JujuRunSocket)
	u.runListener, err = NewRunListener(u, u.paths.Runtime.JujuRunSocket)
	if err != nil {
		return err
	}
	u.addCleanup(func() error {
		// TODO(fwereade): RunListener returns no error on Close. This seems wrong.
		u.runListener.Close()
		return nil
	})
	// The socket needs to have permissions 777 in order for other users to use it.
	if version.Current.OS != version.Windows {
		return os.Chmod(u.paths.Runtime.JujuRunSocket, 0777)
	}
	return nil
}
Пример #4
0
func (s *ToolsSuite) TestEnsureSymlinksBadDir(c *gc.C) {
	err := jujuc.EnsureSymlinks(filepath.Join(c.MkDir(), "noexist"))
	c.Assert(err, gc.ErrorMatches, "cannot initialize hook commands in .*: "+utils.NoSuchFileErrRegexp)
}
Пример #5
0
func (u *Uniter) init(unitTag names.UnitTag) (err error) {
	u.unit, err = u.st.Unit(unitTag)
	if err != nil {
		return err
	}
	if u.unit.Life() == params.Dead {
		// If we started up already dead, we should not progress further. If we
		// become Dead immediately after starting up, we may well complete any
		// operations in progress before detecting it; but that race is fundamental
		// and inescapable, whereas this one is not.
		return worker.ErrTerminateAgent
	}
	// If initialising for the first time after deploying, update the status.
	currentStatus, err := u.unit.UnitStatus()
	if err != nil {
		return err
	}
	// TODO(fwereade/wallyworld): we should have an explicit place in the model
	// to tell us when we've hit this point, instead of piggybacking on top of
	// status and/or status history.
	// If the previous status was waiting for machine, we transition to the next step.
	if currentStatus.Status == string(status.Waiting) &&
		(currentStatus.Info == status.MessageWaitForMachine || currentStatus.Info == status.MessageInstallingAgent) {
		if err := u.unit.SetUnitStatus(status.Waiting, status.MessageInitializingAgent, nil); err != nil {
			return errors.Trace(err)
		}
	}
	if err := jujuc.EnsureSymlinks(u.paths.ToolsDir); err != nil {
		return err
	}
	if err := os.MkdirAll(u.paths.State.RelationsDir, 0755); err != nil {
		return errors.Trace(err)
	}
	relations, err := relation.NewRelations(
		u.st, unitTag, u.paths.State.CharmDir,
		u.paths.State.RelationsDir, u.catacomb.Dying(),
	)
	if err != nil {
		return errors.Annotatef(err, "cannot create relations")
	}
	u.relations = relations
	storageAttachments, err := storage.NewAttachments(
		u.st, unitTag, u.paths.State.StorageDir, u.catacomb.Dying(),
	)
	if err != nil {
		return errors.Annotatef(err, "cannot create storage hook source")
	}
	u.storage = storageAttachments
	u.commands = runcommands.NewCommands()
	u.commandChannel = make(chan string)

	deployer, err := charm.NewDeployer(
		u.paths.State.CharmDir,
		u.paths.State.DeployerDir,
		charm.NewBundlesDir(u.paths.State.BundlesDir, u.downloader),
	)
	if err != nil {
		return errors.Annotatef(err, "cannot create deployer")
	}
	contextFactory, err := context.NewContextFactory(
		u.st, unitTag, u.leadershipTracker, u.relations.GetInfo, u.storage, u.paths, u.clock,
	)
	if err != nil {
		return err
	}
	runnerFactory, err := runner.NewFactory(
		u.st, u.paths, contextFactory,
	)
	if err != nil {
		return errors.Trace(err)
	}
	u.operationFactory = operation.NewFactory(operation.FactoryParams{
		Deployer:       deployer,
		RunnerFactory:  runnerFactory,
		Callbacks:      &operationCallbacks{u},
		Abort:          u.catacomb.Dying(),
		MetricSpoolDir: u.paths.GetMetricsSpoolDir(),
	})

	operationExecutor, err := u.newOperationExecutor(u.paths.State.OperationsFile, u.getServiceCharmURL, u.acquireExecutionLock)
	if err != nil {
		return errors.Trace(err)
	}
	u.operationExecutor = operationExecutor

	logger.Debugf("starting juju-run listener on unix:%s", u.paths.Runtime.JujuRunSocket)
	commandRunner, err := NewChannelCommandRunner(ChannelCommandRunnerConfig{
		Abort:          u.catacomb.Dying(),
		Commands:       u.commands,
		CommandChannel: u.commandChannel,
	})
	if err != nil {
		return errors.Annotate(err, "creating command runner")
	}
	u.runListener, err = NewRunListener(RunListenerConfig{
		SocketPath:    u.paths.Runtime.JujuRunSocket,
		CommandRunner: commandRunner,
	})
	if err != nil {
		return errors.Trace(err)
	}
	rlw := newRunListenerWrapper(u.runListener)
	if err := u.catacomb.Add(rlw); err != nil {
		return errors.Trace(err)
	}
	// The socket needs to have permissions 777 in order for other users to use it.
	if jujuos.HostOS() != jujuos.Windows {
		return os.Chmod(u.paths.Runtime.JujuRunSocket, 0777)
	}
	return nil
}