Adds registry-server support to scs-broker

This is a squash of the commits for the registry-server stories
from the old repo.

Makefile

@@ -6,3 +6,4 @@ run:
 
 manifest:
 	export SCS_BROKER_CONFIG=$(spruce merge broker_config.yml secrets.yml | spruce json )
+

broker/bind.go

@@ -0,0 +1,86 @@
+package broker
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/cloudfoundry-community/go-uaa"
+	brokerapi "github.com/pivotal-cf/brokerapi/domain"
+)
+
+func (broker *ConfigServerBroker) Bind(ctx context.Context, instanceID, bindingID string, details brokerapi.BindDetails, asyncAllowed bool) (brokerapi.Binding, error) {
+	binding := brokerapi.Binding{}
+	kind, err := getKind(details)
+	if err != nil {
+		return binding, err
+	}
+
+	broker.Logger.Info("Bind: GetUAAClient")
+
+	api, err := broker.getUaaClient()
+	if err != nil {
+		broker.Logger.Info("Bind: Error in getting client")
+		return binding, err
+	}
+
+	clientId := makeClientIdForBinding(kind, bindingID)
+	password := genClientPassword()
+
+	client := uaa.Client{
+		ClientID:             clientId,
+		AuthorizedGrantTypes: []string{"client_credentials"},
+		Authorities:          []string{fmt.Sprintf("%s.%v.read", kind, instanceID)},
+		DisplayName:          clientId,
+		ClientSecret:         password,
+	}
+
+	broker.Logger.Info("Bind: got client info")
+	broker.Logger.Info("Bind: Create Client")
+	_, err = api.CreateClient(client)
+	if err != nil {
+		broker.Logger.Info("Bind: Error in CreateClient")
+		return binding, err
+	}
+
+	broker.Logger.Info("Bind: GetClient")
+	cfClient, err := broker.getClient()
+	if err != nil {
+		broker.Logger.Info("Bind: Error in GetClient")
+		return binding, err
+	}
+
+	broker.Logger.Info("Bind: Get Info")
+	info, _, _, err := cfClient.GetInfo()
+	if err != nil {
+		broker.Logger.Info("Bind: Error in Get Info")
+
+		return binding, err
+	}
+
+	broker.Logger.Info("Bind: GetApplicationByNameAndSpace")
+
+	app, _, err := cfClient.GetApplicationByNameAndSpace(makeAppName(kind, instanceID), broker.Config.InstanceSpaceGUID)
+	if err != nil {
+		broker.Logger.Info("Bind: Error in GetApplicationByNameAndSpace")
+		return binding, err
+	}
+
+	broker.Logger.Info("Bind: GetApplicationRoutes")
+	routes, _, err := cfClient.GetApplicationRoutes(app.GUID)
+	if err != nil {
+		broker.Logger.Info("Bind: Error in GetApplicationRoutes")
+		return binding, err
+	}
+
+	broker.Logger.Info("Bind: Building binding Credentials")
+	binding.Credentials = map[string]string{
+		"uri":              fmt.Sprintf("https://%v", routes[0].URL),
+		"access_token_uri": fmt.Sprintf("%v/oauth/token", info.UAA()),
+		"client_id":        clientId,
+		"client_secret":    password,
+	}
+
+	broker.Logger.Info("Bind: Return")
+
+	return binding, nil
+}