Update blockstorage v2 API
diff --git a/openstack/blockstorage/v2/extensions/volumeactions/doc.go b/openstack/blockstorage/v2/extensions/volumeactions/doc.go
new file mode 100644
index 0000000..0935fdb
--- /dev/null
+++ b/openstack/blockstorage/v2/extensions/volumeactions/doc.go
@@ -0,0 +1,5 @@
+// Package volumeactions provides information and interaction with volumes in the
+// OpenStack Block Storage service. A volume is a detachable block storage
+// device, akin to a USB hard drive. It can only be attached to one instance at
+// a time.
+package volumeactions
diff --git a/openstack/blockstorage/v2/extensions/volumeactions/fixtures.go b/openstack/blockstorage/v2/extensions/volumeactions/fixtures.go
new file mode 100644
index 0000000..905d6df
--- /dev/null
+++ b/openstack/blockstorage/v2/extensions/volumeactions/fixtures.go
@@ -0,0 +1,183 @@
+package volumeactions
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	th "github.com/rackspace/gophercloud/testhelper"
+	fake "github.com/rackspace/gophercloud/testhelper/client"
+)
+
+func MockAttachResponse(t *testing.T) {
+	th.Mux.HandleFunc("/volumes/cd281d77-8217-4830-be95-9528227c105c/action",
+		func(w http.ResponseWriter, r *http.Request) {
+			th.TestMethod(t, r, "POST")
+			th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+			th.TestHeader(t, r, "Content-Type", "application/json")
+			th.TestHeader(t, r, "Accept", "application/json")
+			th.TestJSONRequest(t, r, `
+{
+    "os-attach":
+    {
+        "mountpoint": "/mnt",
+        "mode": "rw",
+        "instance_uuid": "50902f4f-a974-46a0-85e9-7efc5e22dfdd"
+    }
+}
+          `)
+
+			w.Header().Add("Content-Type", "application/json")
+			w.WriteHeader(http.StatusAccepted)
+
+			fmt.Fprintf(w, `{}`)
+		})
+}
+
+func MockDetachResponse(t *testing.T) {
+	th.Mux.HandleFunc("/volumes/cd281d77-8217-4830-be95-9528227c105c/action",
+		func(w http.ResponseWriter, r *http.Request) {
+			th.TestMethod(t, r, "POST")
+			th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+			th.TestHeader(t, r, "Content-Type", "application/json")
+			th.TestHeader(t, r, "Accept", "application/json")
+			th.TestJSONRequest(t, r, `
+{
+    "os-detach": {}
+}
+          `)
+
+			w.Header().Add("Content-Type", "application/json")
+			w.WriteHeader(http.StatusAccepted)
+
+			fmt.Fprintf(w, `{}`)
+		})
+}
+
+func MockReserveResponse(t *testing.T) {
+	th.Mux.HandleFunc("/volumes/cd281d77-8217-4830-be95-9528227c105c/action",
+		func(w http.ResponseWriter, r *http.Request) {
+			th.TestMethod(t, r, "POST")
+			th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+			th.TestHeader(t, r, "Content-Type", "application/json")
+			th.TestHeader(t, r, "Accept", "application/json")
+			th.TestJSONRequest(t, r, `
+{
+    "os-reserve": {}
+}
+          `)
+
+			w.Header().Add("Content-Type", "application/json")
+			w.WriteHeader(http.StatusAccepted)
+
+			fmt.Fprintf(w, `{}`)
+		})
+}
+
+func MockUnreserveResponse(t *testing.T) {
+	th.Mux.HandleFunc("/volumes/cd281d77-8217-4830-be95-9528227c105c/action",
+		func(w http.ResponseWriter, r *http.Request) {
+			th.TestMethod(t, r, "POST")
+			th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+			th.TestHeader(t, r, "Content-Type", "application/json")
+			th.TestHeader(t, r, "Accept", "application/json")
+			th.TestJSONRequest(t, r, `
+{
+    "os-unreserve": {}
+}
+          `)
+
+			w.Header().Add("Content-Type", "application/json")
+			w.WriteHeader(http.StatusAccepted)
+
+			fmt.Fprintf(w, `{}`)
+		})
+}
+
+func MockInitializeConnectionResponse(t *testing.T) {
+	th.Mux.HandleFunc("/volumes/cd281d77-8217-4830-be95-9528227c105c/action",
+		func(w http.ResponseWriter, r *http.Request) {
+			th.TestMethod(t, r, "POST")
+			th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+			th.TestHeader(t, r, "Content-Type", "application/json")
+			th.TestHeader(t, r, "Accept", "application/json")
+			th.TestJSONRequest(t, r, `
+{
+    "os-initialize_connection":
+    {
+        "connector":
+        {
+        "ip":"127.0.0.1",
+        "host":"stack",
+        "initiator":"iqn.1994-05.com.redhat:17cf566367d2",
+        "multipath": false,
+        "platform": "x86_64",
+        "os_type": "linux2"
+        }
+    }
+}
+          `)
+
+			w.Header().Add("Content-Type", "application/json")
+			w.WriteHeader(http.StatusAccepted)
+
+			fmt.Fprintf(w, `{
+"connection_info": {
+    "data": {
+      "target_portals": [
+        "172.31.17.48:3260"
+      ],
+      "auth_method": "CHAP",
+      "auth_username": "5MLtcsTEmNN5jFVcT6ui",
+      "access_mode": "rw",
+      "target_lun": 0,
+      "volume_id": "cd281d77-8217-4830-be95-9528227c105c",
+      "target_luns": [
+        0
+      ],
+      "target_iqns": [
+        "iqn.2010-10.org.openstack:volume-cd281d77-8217-4830-be95-9528227c105c"
+      ],
+      "auth_password": "x854ZY5Re3aCkdNL",
+      "target_discovered": false,
+      "encrypted": false,
+      "qos_specs": null,
+      "target_iqn": "iqn.2010-10.org.openstack:volume-cd281d77-8217-4830-be95-9528227c105c",
+      "target_portal": "172.31.17.48:3260"
+    },
+    "driver_volume_type": "iscsi"
+  }
+            }`)
+		})
+}
+
+func MockTerminateConnectionResponse(t *testing.T) {
+	th.Mux.HandleFunc("/volumes/cd281d77-8217-4830-be95-9528227c105c/action",
+		func(w http.ResponseWriter, r *http.Request) {
+			th.TestMethod(t, r, "POST")
+			th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
+			th.TestHeader(t, r, "Content-Type", "application/json")
+			th.TestHeader(t, r, "Accept", "application/json")
+			th.TestJSONRequest(t, r, `
+{
+    "os-terminate_connection":
+    {
+        "connector":
+        {
+        "ip":"127.0.0.1",
+        "host":"stack",
+        "initiator":"iqn.1994-05.com.redhat:17cf566367d2",
+        "multipath": false,
+        "platform": "x86_64",
+        "os_type": "linux2"
+        }
+    }
+}
+          `)
+
+			w.Header().Add("Content-Type", "application/json")
+			w.WriteHeader(http.StatusAccepted)
+
+			fmt.Fprintf(w, `{}`)
+		})
+}
diff --git a/openstack/blockstorage/v2/extensions/volumeactions/requests.go b/openstack/blockstorage/v2/extensions/volumeactions/requests.go
new file mode 100644
index 0000000..5f37f3c
--- /dev/null
+++ b/openstack/blockstorage/v2/extensions/volumeactions/requests.go
@@ -0,0 +1,176 @@
+package volumeactions
+
+import (
+	"github.com/rackspace/gophercloud"
+)
+
+type AttachOptsBuilder interface {
+	ToVolumeAttachMap() (map[string]interface{}, error)
+}
+
+type AttachOpts struct {
+	// The mountpoint of this volume
+	MountPoint string
+	// The nova instance ID, can't set simultaneously with HostName
+	InstanceUUID string
+	// The hostname of baremetal host, can't set simultaneously with InstanceUUID
+	HostName string
+	// Mount mode of this volume
+	Mode string
+}
+
+func (opts AttachOpts) ToVolumeAttachMap() (map[string]interface{}, error) {
+	v := make(map[string]interface{})
+
+	if opts.MountPoint != "" {
+		v["mountpoint"] = opts.MountPoint
+	}
+	if opts.Mode != "" {
+		v["mode"] = opts.Mode
+	}
+	if opts.InstanceUUID != "" {
+		v["instance_uuid"] = opts.InstanceUUID
+	}
+	if opts.HostName != "" {
+		v["host_name"] = opts.HostName
+	}
+
+	return map[string]interface{}{"os-attach": v}, nil
+}
+
+func Attach(client *gophercloud.ServiceClient, id string, opts AttachOptsBuilder) AttachResult {
+	var res AttachResult
+
+	reqBody, err := opts.ToVolumeAttachMap()
+	if err != nil {
+		res.Err = err
+		return res
+	}
+
+	_, res.Err = client.Post(attachURL(client, id), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201, 202},
+	})
+
+	return res
+}
+
+func Detach(client *gophercloud.ServiceClient, id string) DetachResult {
+	var res DetachResult
+
+	v := make(map[string]interface{})
+	reqBody := map[string]interface{}{"os-detach": v}
+
+	_, res.Err = client.Post(detachURL(client, id), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201, 202},
+	})
+
+	return res
+}
+
+func Reserve(client *gophercloud.ServiceClient, id string) ReserveResult {
+	var res ReserveResult
+
+	v := make(map[string]interface{})
+	reqBody := map[string]interface{}{"os-reserve": v}
+
+	_, res.Err = client.Post(reserveURL(client, id), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201, 202},
+	})
+
+	return res
+}
+
+func Unreserve(client *gophercloud.ServiceClient, id string) UnreserveResult {
+	var res UnreserveResult
+
+	v := make(map[string]interface{})
+	reqBody := map[string]interface{}{"os-unreserve": v}
+
+	_, res.Err = client.Post(unreserveURL(client, id), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201, 202},
+	})
+
+	return res
+}
+
+type ConnectorOptsBuilder interface {
+	ToConnectorMap() (map[string]interface{}, error)
+}
+
+type ConnectorOpts struct {
+	IP        string
+	Host      string
+	Initiator string
+	Wwpns     string
+	Wwnns     string
+	Multipath bool
+	Platform  string
+	OSType    string
+}
+
+func (opts ConnectorOpts) ToConnectorMap() (map[string]interface{}, error) {
+	v := make(map[string]interface{})
+
+	if opts.IP != "" {
+		v["ip"] = opts.IP
+	}
+	if opts.Host != "" {
+		v["host"] = opts.Host
+	}
+	if opts.Initiator != "" {
+		v["initiator"] = opts.Initiator
+	}
+	if opts.Wwpns != "" {
+		v["wwpns"] = opts.Wwpns
+	}
+	if opts.Wwnns != "" {
+		v["wwnns"] = opts.Wwnns
+	}
+
+	v["multipath"] = opts.Multipath
+
+	if opts.Platform != "" {
+		v["platform"] = opts.Platform
+	}
+	if opts.OSType != "" {
+		v["os_type"] = opts.OSType
+	}
+
+	return map[string]interface{}{"connector": v}, nil
+}
+
+func InitializeConnection(client *gophercloud.ServiceClient, id string, opts *ConnectorOpts) InitializeConnectionResult {
+	var res InitializeConnectionResult
+
+	connctorMap, err := opts.ToConnectorMap()
+	if err != nil {
+		res.Err = err
+		return res
+	}
+
+	reqBody := map[string]interface{}{"os-initialize_connection": connctorMap}
+
+	_, res.Err = client.Post(initializeConnectionURL(client, id), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201, 202},
+	})
+
+	return res
+}
+
+func TerminateConnection(client *gophercloud.ServiceClient, id string, opts *ConnectorOpts) TerminateConnectionResult {
+	var res TerminateConnectionResult
+
+	connctorMap, err := opts.ToConnectorMap()
+	if err != nil {
+		res.Err = err
+		return res
+	}
+
+	reqBody := map[string]interface{}{"os-terminate_connection": connctorMap}
+
+	_, res.Err = client.Post(teminateConnectionURL(client, id), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201, 202},
+	})
+
+	return res
+}
diff --git a/openstack/blockstorage/v2/extensions/volumeactions/requests_test.go b/openstack/blockstorage/v2/extensions/volumeactions/requests_test.go
new file mode 100644
index 0000000..57e2b59
--- /dev/null
+++ b/openstack/blockstorage/v2/extensions/volumeactions/requests_test.go
@@ -0,0 +1,89 @@
+package volumeactions
+
+import (
+	"testing"
+
+	th "github.com/rackspace/gophercloud/testhelper"
+	"github.com/rackspace/gophercloud/testhelper/client"
+)
+
+func TestAttach(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	MockAttachResponse(t)
+
+	options := &AttachOpts{
+		MountPoint:   "/mnt",
+		Mode:         "rw",
+		InstanceUUID: "50902f4f-a974-46a0-85e9-7efc5e22dfdd",
+	}
+	_, err := Attach(client.ServiceClient(), "cd281d77-8217-4830-be95-9528227c105c", options).Extract()
+	th.AssertNoErr(t, err)
+}
+
+func TestDetach(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	MockDetachResponse(t)
+
+	_, err := Detach(client.ServiceClient(), "cd281d77-8217-4830-be95-9528227c105c").Extract()
+	th.AssertNoErr(t, err)
+}
+
+func TestReserve(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	MockReserveResponse(t)
+
+	_, err := Reserve(client.ServiceClient(), "cd281d77-8217-4830-be95-9528227c105c").Extract()
+	th.AssertNoErr(t, err)
+}
+
+func TestUnreserve(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	MockUnreserveResponse(t)
+
+	_, err := Unreserve(client.ServiceClient(), "cd281d77-8217-4830-be95-9528227c105c").Extract()
+	th.AssertNoErr(t, err)
+}
+
+func TestInitializeConnection(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	MockInitializeConnectionResponse(t)
+
+	options := &ConnectorOpts{
+		IP:        "127.0.0.1",
+		Host:      "stack",
+		Initiator: "iqn.1994-05.com.redhat:17cf566367d2",
+		Multipath: false,
+		Platform:  "x86_64",
+		OSType:    "linux2",
+	}
+	_, err := InitializeConnection(client.ServiceClient(), "cd281d77-8217-4830-be95-9528227c105c", options).Extract()
+	th.AssertNoErr(t, err)
+}
+
+func TestTerminateConnection(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	MockTerminateConnectionResponse(t)
+
+	options := &ConnectorOpts{
+		IP:        "127.0.0.1",
+		Host:      "stack",
+		Initiator: "iqn.1994-05.com.redhat:17cf566367d2",
+		Multipath: false,
+		Platform:  "x86_64",
+		OSType:    "linux2",
+	}
+	_, err := TerminateConnection(client.ServiceClient(), "cd281d77-8217-4830-be95-9528227c105c", options).Extract()
+	th.AssertNoErr(t, err)
+}
diff --git a/openstack/blockstorage/v2/extensions/volumeactions/results.go b/openstack/blockstorage/v2/extensions/volumeactions/results.go
new file mode 100644
index 0000000..c767307
--- /dev/null
+++ b/openstack/blockstorage/v2/extensions/volumeactions/results.go
@@ -0,0 +1,53 @@
+package volumeactions
+
+import (
+	"github.com/mitchellh/mapstructure"
+	"github.com/rackspace/gophercloud"
+)
+
+type commonResult struct {
+	gophercloud.Result
+}
+
+// AttachResult contains the response body and error from a Get request.
+type AttachResult struct {
+	commonResult
+}
+
+// DetachResult contains the response body and error from a Get request.
+type DetachResult struct {
+	commonResult
+}
+
+// ReserveResult contains the response body and error from a Get request.
+type ReserveResult struct {
+	commonResult
+}
+
+// UnreserveResult contains the response body and error from a Get request.
+type UnreserveResult struct {
+	commonResult
+}
+
+// InitializeConnectionResult contains the response body and error from a Get request.
+type InitializeConnectionResult struct {
+	commonResult
+}
+
+// TerminateConnectionResult contains the response body and error from a Get request.
+type TerminateConnectionResult struct {
+	commonResult
+}
+
+// Extract will get the Volume object out of the commonResult object.
+func (r commonResult) Extract() (map[string]interface{}, error) {
+	if r.Err != nil {
+		return nil, r.Err
+	}
+
+	var res map[string]interface{}
+
+	err := mapstructure.Decode(r.Body, &res)
+
+	return res, err
+}
diff --git a/openstack/blockstorage/v2/extensions/volumeactions/urls.go b/openstack/blockstorage/v2/extensions/volumeactions/urls.go
new file mode 100644
index 0000000..4b3c5f2
--- /dev/null
+++ b/openstack/blockstorage/v2/extensions/volumeactions/urls.go
@@ -0,0 +1,27 @@
+package volumeactions
+
+import "github.com/rackspace/gophercloud"
+
+func attachURL(c *gophercloud.ServiceClient, id string) string {
+	return c.ServiceURL("volumes", id, "action")
+}
+
+func detachURL(c *gophercloud.ServiceClient, id string) string {
+	return attachURL(c, id)
+}
+
+func reserveURL(c *gophercloud.ServiceClient, id string) string {
+	return attachURL(c, id)
+}
+
+func unreserveURL(c *gophercloud.ServiceClient, id string) string {
+	return attachURL(c, id)
+}
+
+func initializeConnectionURL(c *gophercloud.ServiceClient, id string) string {
+	return attachURL(c, id)
+}
+
+func teminateConnectionURL(c *gophercloud.ServiceClient, id string) string {
+	return attachURL(c, id)
+}
diff --git a/openstack/blockstorage/v2/extensions/volumeactions/urls_test.go b/openstack/blockstorage/v2/extensions/volumeactions/urls_test.go
new file mode 100644
index 0000000..ff4a5d3
--- /dev/null
+++ b/openstack/blockstorage/v2/extensions/volumeactions/urls_test.go
@@ -0,0 +1,50 @@
+package volumeactions
+
+import (
+	"testing"
+
+	"github.com/rackspace/gophercloud"
+	th "github.com/rackspace/gophercloud/testhelper"
+)
+
+const endpoint = "http://localhost:57909"
+
+func endpointClient() *gophercloud.ServiceClient {
+	return &gophercloud.ServiceClient{Endpoint: endpoint}
+}
+
+func TestAttachURL(t *testing.T) {
+	actual := attachURL(endpointClient(), "foo")
+	expected := endpoint + "volumes/foo/action"
+	th.AssertEquals(t, expected, actual)
+}
+
+func TestDettachURL(t *testing.T) {
+	actual := detachURL(endpointClient(), "foo")
+	expected := endpoint + "volumes/foo/action"
+	th.AssertEquals(t, expected, actual)
+}
+
+func TestReserveURL(t *testing.T) {
+	actual := reserveURL(endpointClient(), "foo")
+	expected := endpoint + "volumes/foo/action"
+	th.AssertEquals(t, expected, actual)
+}
+
+func TestUnreserveURL(t *testing.T) {
+	actual := unreserveURL(endpointClient(), "foo")
+	expected := endpoint + "volumes/foo/action"
+	th.AssertEquals(t, expected, actual)
+}
+
+func TestInitializeConnectionURL(t *testing.T) {
+	actual := initializeConnectionURL(endpointClient(), "foo")
+	expected := endpoint + "volumes/foo/action"
+	th.AssertEquals(t, expected, actual)
+}
+
+func TestTeminateConnectionURL(t *testing.T) {
+	actual := teminateConnectionURL(endpointClient(), "foo")
+	expected := endpoint + "volumes/foo/action"
+	th.AssertEquals(t, expected, actual)
+}