コード例 #1
0
ファイル: machinegroup.go プロジェクト: koding/koding
// New creates a new Group object.
func New(opts *GroupOpts) (*Group, error) {
	if err := opts.Valid(); err != nil {
		return nil, err
	}

	g := &Group{}

	// Add logger to group.
	if opts.Log != nil {
		g.log = opts.Log.New("machines")
	} else {
		g.log = machine.DefaultLogger.New("machines")
	}

	// Use default discover client when not set.
	if opts.Discover != nil {
		g.discover = opts.Discover
	} else {
		g.discover = discover.NewClient()
	}

	// Create dynamic clients.
	var err error
	g.client, err = clients.New(&clients.ClientsOpts{
		Builder:         opts.Builder,
		DynAddrInterval: opts.DynAddrInterval,
		PingInterval:    opts.PingInterval,
		Log:             g.log,
	})
	if err != nil {
		g.log.Critical("Cannot create machine monitor: %s", err)
		return nil, err
	}

	// Add default components.
	g.address = addresses.New()
	g.alias = aliases.New()
	if opts.Storage == nil {
		return g, nil
	}

	// Try to add storage for Addresses.
	if address, err := addresses.NewCached(opts.Storage); err != nil {
		g.log.Warning("Cannot load addresses cache: %s", err)
	} else {
		g.address = address
	}

	// Try to add storage for Aliases.
	if alias, err := aliases.NewCached(opts.Storage); err != nil {
		g.log.Warning("Cannot load aliases cache: %s", err)
	} else {
		g.alias = alias
	}

	// Start memory workers.
	g.bootstrap()

	return g, nil
}
コード例 #2
0
ファイル: clients_test.go プロジェクト: koding/koding
func TestClients(t *testing.T) {
	var (
		builder = testutil.NewBuilder(nil)

		idA = machine.ID("servA")
		idB = machine.ID("servB")

		servA = &testutil.Server{}
		servB = &testutil.Server{}
	)

	cs, err := clients.New(testOptions(builder))
	if err != nil {
		t.Fatalf("want err = nil; got %v", err)
	}
	defer cs.Close()

	var g errgroup.Group
	create := map[machine.ID]client.DynamicAddrFunc{
		idA: servA.AddrFunc(),
		idB: servB.AddrFunc(),
		idA: servA.AddrFunc(), // duplicate.
		idA: servA.AddrFunc(), // duplicate.
	}

	for id, dynAddr := range create {
		id, dynAddr := id, dynAddr // Local copy for concurrency.
		g.Go(func() error {
			return cs.Create(id, dynAddr)
		})
	}
	if err := g.Wait(); err != nil {
		t.Fatalf("want err = nil; got %v", err)
	}

	if regs := cs.Registered(); len(regs) != 2 {
		t.Fatalf("want clients count = 2; got %d", len(regs))
	}

	if _, err := cs.Client(idA); err != nil {
		t.Fatalf("want err = nil; got %v", err)
	}

	if err := cs.Drop(idA); err != nil {
		t.Fatalf("want err = nil; got %v", err)
	}

	if _, err := cs.Client(idA); err != machine.ErrMachineNotFound {
		t.Fatalf("want machine not found; got %v", err)
	}

	if regs := cs.Registered(); len(regs) != 1 {
		t.Fatalf("want clients count = 1; got %d", len(regs))
	}
}