add delegates for rackspace configurations
diff --git a/rackspace/db/v1/configurations/delegate.go b/rackspace/db/v1/configurations/delegate.go
new file mode 100644
index 0000000..d8cb48a
--- /dev/null
+++ b/rackspace/db/v1/configurations/delegate.go
@@ -0,0 +1,79 @@
+package configurations
+
+import (
+	"github.com/rackspace/gophercloud"
+	os "github.com/rackspace/gophercloud/openstack/db/v1/configurations"
+	"github.com/rackspace/gophercloud/pagination"
+)
+
+// List will list all of the available configurations.
+func List(client *gophercloud.ServiceClient) pagination.Pager {
+	return os.List(client)
+}
+
+// Create will create a new configuration group.
+func Create(client *gophercloud.ServiceClient, opts os.CreateOptsBuilder) os.CreateResult {
+	return os.Create(client, opts)
+}
+
+// Get will retrieve the details for a specified configuration group.
+func Get(client *gophercloud.ServiceClient, configID string) os.GetResult {
+	return os.Get(client, configID)
+}
+
+// Update will modify an existing configuration group by performing a merge
+// between new and existing values. If the key already exists, the new value
+// will overwrite. All other keys will remain unaffected.
+func Update(client *gophercloud.ServiceClient, configID string, opts os.UpdateOptsBuilder) os.UpdateResult {
+	return os.Update(client, configID, opts)
+}
+
+// Replace will modify an existing configuration group by overwriting the
+// entire parameter group with the new values provided. Any existing keys not
+// included in UpdateOptsBuilder will be deleted.
+func Replace(client *gophercloud.ServiceClient, configID string, opts os.UpdateOptsBuilder) os.ReplaceResult {
+	return os.Replace(client, configID, opts)
+}
+
+// Delete will permanently delete a configuration group. Please note that
+// config groups cannot be deleted whilst still attached to running instances -
+// you must detach and then delete them.
+func Delete(client *gophercloud.ServiceClient, configID string) os.DeleteResult {
+	return os.Delete(client, configID)
+}
+
+// ListInstances will list all the instances associated with a particular
+// configuration group.
+func ListInstances(client *gophercloud.ServiceClient, configID string) pagination.Pager {
+	return os.ListInstances(client, configID)
+}
+
+// ListDatastoreParams will list all the available and supported parameters
+// that can be used for a particular datastore ID and a particular version.
+// For example, if you are wondering how you can configure a MySQL 5.6 instance,
+// you can use this operation (you will need to retrieve the MySQL datastore ID
+// by using the datastores API).
+func ListDatastoreParams(client *gophercloud.ServiceClient, datastoreID, versionID string) pagination.Pager {
+	return os.ListDatastoreParams(client, datastoreID, versionID)
+}
+
+// GetDatastoreParam will retrieve information about a specific configuration
+// parameter. For example, you can use this operation to understand more about
+// "innodb_file_per_table" configuration param for MySQL datastores. You will
+// need the param's ID first, which can be attained by using the ListDatastoreParams
+// operation.
+func GetDatastoreParam(client *gophercloud.ServiceClient, datastoreID, versionID, paramID string) os.ParamResult {
+	return os.GetDatastoreParam(client, datastoreID, versionID, paramID)
+}
+
+// ListGlobalParams is similar to ListDatastoreParams but does not require a
+// DatastoreID.
+func ListGlobalParams(client *gophercloud.ServiceClient, versionID string) pagination.Pager {
+	return os.ListGlobalParams(client, versionID)
+}
+
+// GetGlobalParam is similar to GetDatastoreParam but does not require a
+// DatastoreID.
+func GetGlobalParam(client *gophercloud.ServiceClient, versionID, paramID string) os.ParamResult {
+	return os.GetGlobalParam(client, versionID, paramID)
+}
diff --git a/rackspace/db/v1/configurations/delegate_test.go b/rackspace/db/v1/configurations/delegate_test.go
new file mode 100644
index 0000000..af5e8aa
--- /dev/null
+++ b/rackspace/db/v1/configurations/delegate_test.go
@@ -0,0 +1,237 @@
+package configurations
+
+import (
+	"testing"
+
+	os "github.com/rackspace/gophercloud/openstack/db/v1/configurations"
+	"github.com/rackspace/gophercloud/pagination"
+	"github.com/rackspace/gophercloud/rackspace/db/v1/instances"
+	th "github.com/rackspace/gophercloud/testhelper"
+	fake "github.com/rackspace/gophercloud/testhelper/client"
+	"github.com/rackspace/gophercloud/testhelper/fixture"
+)
+
+var (
+	configID = "{configID}"
+	_baseURL = "/configurations"
+	resURL   = _baseURL + "/" + configID
+
+	dsID               = "{datastoreID}"
+	versionID          = "{versionID}"
+	paramID            = "{paramID}"
+	dsParamListURL     = "/datastores/" + dsID + "/versions/" + versionID + "/parameters"
+	dsParamGetURL      = "/datastores/" + dsID + "/versions/" + versionID + "/parameters/" + paramID
+	globalParamListURL = "/datastores/versions/" + versionID + "/parameters"
+	globalParamGetURL  = "/datastores/versions/" + versionID + "/parameters/" + paramID
+)
+
+func TestList(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, _baseURL, "GET", "", os.ListConfigsJSON, 200)
+
+	count := 0
+	err := List(fake.ServiceClient()).EachPage(func(page pagination.Page) (bool, error) {
+		count++
+		actual, err := os.ExtractConfigs(page)
+		th.AssertNoErr(t, err)
+
+		expected := []os.Config{os.ExampleConfig}
+		th.AssertDeepEquals(t, expected, actual)
+
+		return true, nil
+	})
+
+	th.AssertEquals(t, 1, count)
+	th.AssertNoErr(t, err)
+}
+
+func TestGet(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, resURL, "GET", "", os.GetConfigJSON, 200)
+
+	config, err := Get(fake.ServiceClient(), configID).Extract()
+	th.AssertNoErr(t, err)
+	th.AssertDeepEquals(t, &os.ExampleConfig, config)
+}
+
+func TestCreate(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, _baseURL, "POST", os.CreateReq, os.CreateConfigJSON, 200)
+
+	opts := os.CreateOpts{
+		Datastore: &os.DatastoreOpts{
+			Type:    "a00000a0-00a0-0a00-00a0-000a000000aa",
+			Version: "b00000b0-00b0-0b00-00b0-000b000000bb",
+		},
+		Description: "example description",
+		Name:        "example-configuration-name",
+		Values: map[string]interface{}{
+			"collation_server": "latin1_swedish_ci",
+			"connect_timeout":  120,
+		},
+	}
+
+	config, err := Create(fake.ServiceClient(), opts).Extract()
+	th.AssertNoErr(t, err)
+	th.AssertDeepEquals(t, &os.ExampleConfigWithValues, config)
+}
+
+func TestUpdate(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, resURL, "PATCH", os.UpdateReq, "", 200)
+
+	opts := os.UpdateOpts{
+		Values: map[string]interface{}{
+			"connect_timeout": 300,
+		},
+	}
+
+	err := Update(fake.ServiceClient(), configID, opts).ExtractErr()
+	th.AssertNoErr(t, err)
+}
+
+func TestReplace(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, resURL, "PUT", os.UpdateReq, "", 202)
+
+	opts := os.UpdateOpts{
+		Values: map[string]interface{}{
+			"connect_timeout": 300,
+		},
+	}
+
+	err := Replace(fake.ServiceClient(), configID, opts).ExtractErr()
+	th.AssertNoErr(t, err)
+}
+
+func TestDelete(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, resURL, "DELETE", "", "", 202)
+
+	err := Delete(fake.ServiceClient(), configID).ExtractErr()
+	th.AssertNoErr(t, err)
+}
+
+func TestListInstances(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, resURL+"/instances", "GET", "", os.ListInstancesJSON, 200)
+
+	expectedInstance := instances.Instance{
+		ID:   "d4603f69-ec7e-4e9b-803f-600b9205576f",
+		Name: "json_rack_instance",
+	}
+
+	pages := 0
+	err := ListInstances(fake.ServiceClient(), configID).EachPage(func(page pagination.Page) (bool, error) {
+		pages++
+
+		actual, err := instances.ExtractInstances(page)
+		if err != nil {
+			return false, err
+		}
+
+		th.AssertDeepEquals(t, actual, []instances.Instance{expectedInstance})
+
+		return true, nil
+	})
+
+	th.AssertNoErr(t, err)
+	th.AssertEquals(t, 1, pages)
+}
+
+func TestListDSParams(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, dsParamListURL, "GET", "", os.ListParamsJSON, 200)
+
+	pages := 0
+	err := ListDatastoreParams(fake.ServiceClient(), dsID, versionID).EachPage(func(page pagination.Page) (bool, error) {
+		pages++
+
+		actual, err := os.ExtractParams(page)
+		if err != nil {
+			return false, err
+		}
+
+		expected := []os.Param{
+			os.Param{Max: 1, Min: 0, Name: "innodb_file_per_table", RestartRequired: true, Type: "integer"},
+			os.Param{Max: 4294967296, Min: 0, Name: "key_buffer_size", RestartRequired: false, Type: "integer"},
+			os.Param{Max: 65535, Min: 2, Name: "connect_timeout", RestartRequired: false, Type: "integer"},
+			os.Param{Max: 4294967296, Min: 0, Name: "join_buffer_size", RestartRequired: false, Type: "integer"},
+		}
+
+		th.AssertDeepEquals(t, actual, expected)
+
+		return true, nil
+	})
+
+	th.AssertNoErr(t, err)
+	th.AssertEquals(t, 1, pages)
+}
+
+func TestGetDSParam(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, dsParamGetURL, "GET", "", os.GetParamJSON, 200)
+
+	param, err := GetDatastoreParam(fake.ServiceClient(), dsID, versionID, paramID).Extract()
+	th.AssertNoErr(t, err)
+
+	expected := &os.Param{
+		Max: 1, Min: 0, Name: "innodb_file_per_table", RestartRequired: true, Type: "integer",
+	}
+
+	th.AssertDeepEquals(t, expected, param)
+}
+
+func TestListGlobalParams(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, globalParamListURL, "GET", "", os.ListParamsJSON, 200)
+
+	pages := 0
+	err := ListGlobalParams(fake.ServiceClient(), versionID).EachPage(func(page pagination.Page) (bool, error) {
+		pages++
+
+		actual, err := os.ExtractParams(page)
+		if err != nil {
+			return false, err
+		}
+
+		expected := []os.Param{
+			os.Param{Max: 1, Min: 0, Name: "innodb_file_per_table", RestartRequired: true, Type: "integer"},
+			os.Param{Max: 4294967296, Min: 0, Name: "key_buffer_size", RestartRequired: false, Type: "integer"},
+			os.Param{Max: 65535, Min: 2, Name: "connect_timeout", RestartRequired: false, Type: "integer"},
+			os.Param{Max: 4294967296, Min: 0, Name: "join_buffer_size", RestartRequired: false, Type: "integer"},
+		}
+
+		th.AssertDeepEquals(t, actual, expected)
+
+		return true, nil
+	})
+
+	th.AssertNoErr(t, err)
+	th.AssertEquals(t, 1, pages)
+}
+
+func TestGetGlobalParam(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	fixture.SetupHandler(t, globalParamGetURL, "GET", "", os.GetParamJSON, 200)
+
+	param, err := GetGlobalParam(fake.ServiceClient(), versionID, paramID).Extract()
+	th.AssertNoErr(t, err)
+
+	expected := &os.Param{
+		Max: 1, Min: 0, Name: "innodb_file_per_table", RestartRequired: true, Type: "integer",
+	}
+
+	th.AssertDeepEquals(t, expected, param)
+}
diff --git a/rackspace/db/v1/configurations/doc.go b/rackspace/db/v1/configurations/doc.go
new file mode 100644
index 0000000..48c51d6
--- /dev/null
+++ b/rackspace/db/v1/configurations/doc.go
@@ -0,0 +1 @@
+package configurations