Feature/filestorage sharenetworks create (#118)

* sfs: Add support for share networks Create

* sfs: Add Manila to acceptance test environment

* sfs: Add acceptance tests for share networks Create

* sfs: Remove unused urls

Some url functions were introduced but they belong to other
PRs. Will be repushed with in the correct PRs

* sfs: Make name and descr required for creating share network

* sfs: Remove required parameters

After taking a close look at the code it appeared that 'name'
and 'description' are not required parameters
diff --git a/openstack/client.go b/openstack/client.go
index a45b538..3664cbc 100644
--- a/openstack/client.go
+++ b/openstack/client.go
@@ -269,6 +269,16 @@
 	return &gophercloud.ServiceClient{ProviderClient: client, Endpoint: url}, nil
 }
 
+// NewSharedFileSystemV2 creates a ServiceClient that may be used to access the v2 shared file system service.
+func NewSharedFileSystemV2(client *gophercloud.ProviderClient, eo gophercloud.EndpointOpts) (*gophercloud.ServiceClient, error) {
+	eo.ApplyDefaults("sharev2")
+	url, err := client.EndpointLocator(eo)
+	if err != nil {
+		return nil, err
+	}
+	return &gophercloud.ServiceClient{ProviderClient: client, Endpoint: url}, nil
+}
+
 // NewCDNV1 creates a ServiceClient that may be used to access the OpenStack v1
 // CDN service.
 func NewCDNV1(client *gophercloud.ProviderClient, eo gophercloud.EndpointOpts) (*gophercloud.ServiceClient, error) {
diff --git a/openstack/sharedfilesystems/v2/sharenetworks/requests.go b/openstack/sharedfilesystems/v2/sharenetworks/requests.go
new file mode 100644
index 0000000..f551861
--- /dev/null
+++ b/openstack/sharedfilesystems/v2/sharenetworks/requests.go
@@ -0,0 +1,46 @@
+package sharenetworks
+
+import "github.com/gophercloud/gophercloud"
+
+// CreateOptsBuilder allows extensions to add additional parameters to the
+// Create request.
+type CreateOptsBuilder interface {
+	ToShareNetworkCreateMap() (map[string]interface{}, error)
+}
+
+// CreateOpts contains options for creating a ShareNetwork. This object is
+// passed to the sharenetworks.Create function. For more information about
+// these parameters, see the ShareNetwork object.
+type CreateOpts struct {
+	// The UUID of the Neutron network to set up for share servers
+	NeutronNetID string `json:"neutron_net_id,omitempty"`
+	// The UUID of the Neutron subnet to set up for share servers
+	NeutronSubnetID string `json:"neutron_subnet_id,omitempty"`
+	// The UUID of the nova network to set up for share servers
+	NovaNetID string `json:"nova_net_id,omitempty"`
+	// The share network name
+	Name string `json:"name"`
+	// The share network description
+	Description string `json:"description"`
+}
+
+// ToShareNetworkCreateMap assembles a request body based on the contents of a
+// CreateOpts.
+func (opts CreateOpts) ToShareNetworkCreateMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "share_network")
+}
+
+// Create will create a new ShareNetwork based on the values in CreateOpts. To
+// extract the ShareNetwork object from the response, call the Extract method
+// on the CreateResult.
+func Create(client *gophercloud.ServiceClient, opts CreateOptsBuilder) (r CreateResult) {
+	b, err := opts.ToShareNetworkCreateMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Post(createURL(client), b, &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 202},
+	})
+	return
+}
diff --git a/openstack/sharedfilesystems/v2/sharenetworks/results.go b/openstack/sharedfilesystems/v2/sharenetworks/results.go
new file mode 100644
index 0000000..9a2891a
--- /dev/null
+++ b/openstack/sharedfilesystems/v2/sharenetworks/results.go
@@ -0,0 +1,52 @@
+package sharenetworks
+
+import "github.com/gophercloud/gophercloud"
+
+// ShareNetwork contains all the information associated with an OpenStack
+// ShareNetwork.
+type ShareNetwork struct {
+	// The Share Network ID
+	ID string `json:"id"`
+	// The UUID of the project where the share network was created
+	ProjectID string `json:"project_id"`
+	// The neutron network ID
+	NeutronNetID string `json:"neutron_net_id"`
+	// The neutron subnet ID
+	NeutronSubnetID string `json:"neutron_subnet_id"`
+	// The nova network ID
+	NovaNetID string `json:"nova_net_id"`
+	// The network type. A valid value is VLAN, VXLAN, GRE or flat
+	NetworkType string `json:"network_type"`
+	// The segmentation ID
+	SegmentationID int `json:"segmentation_id"`
+	// The IP block from which to allocate the network, in CIDR notation
+	CIDR string `json:"cidr"`
+	// The IP version of the network. A valid value is 4 or 6
+	IPVersion int `json:"ip_version"`
+	// The Share Network name
+	Name string `json:"name"`
+	// The Share Network description
+	Description string `json:"description"`
+	// The date and time stamp when the Share Network was created
+	CreatedAt string `json:"created_at"`
+	// The date and time stamp when the Share Network was updated
+	UpdatedAt string `json:"updated_at"`
+}
+
+type commonResult struct {
+	gophercloud.Result
+}
+
+// Extract will get the ShareNetwork object out of the commonResult object.
+func (r commonResult) Extract() (*ShareNetwork, error) {
+	var s struct {
+		ShareNetwork *ShareNetwork `json:"share_network"`
+	}
+	err := r.ExtractInto(&s)
+	return s.ShareNetwork, err
+}
+
+// CreateResult contains the response body and error from a Create request.
+type CreateResult struct {
+	commonResult
+}
diff --git a/openstack/sharedfilesystems/v2/sharenetworks/testing/fixtures.go b/openstack/sharedfilesystems/v2/sharenetworks/testing/fixtures.go
new file mode 100644
index 0000000..bc61084
--- /dev/null
+++ b/openstack/sharedfilesystems/v2/sharenetworks/testing/fixtures.go
@@ -0,0 +1,63 @@
+package testing
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	th "github.com/gophercloud/gophercloud/testhelper"
+	fake "github.com/gophercloud/gophercloud/testhelper/client"
+)
+
+func createReq(name, description, network, subnetwork string) string {
+	return fmt.Sprintf(`{
+		"share_network": {
+			"name": "%s",
+			"description": "%s",
+			"neutron_net_id": "%s",
+			"neutron_subnet_id": "%s"
+		}
+	}`, name, description, network, subnetwork)
+}
+
+func createResp(name, description, network, subnetwork string) string {
+	return fmt.Sprintf(`
+	{
+		"share_network": {
+			"name": "%s",
+			"description": "%s",
+			"segmentation_id": null,
+			"created_at": "2015-09-07T14:37:00.583656",
+			"updated_at": null,
+			"id": "77eb3421-4549-4789-ac39-0d5185d68c29",
+			"neutron_net_id": "%s",
+			"neutron_subnet_id": "%s",
+			"ip_version": null,
+			"nova_net_id": null,
+			"cidr": null,
+			"project_id": "e10a683c20da41248cfd5e1ab3d88c62",
+			"network_type": null
+		}
+	}`, name, description, network, subnetwork)
+}
+
+func MockCreateResponse(t *testing.T) {
+	th.Mux.HandleFunc("/share-networks", 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, createReq("my_network",
+			"This is my share network",
+			"998b42ee-2cee-4d36-8b95-67b5ca1f2109",
+			"53482b62-2c84-4a53-b6ab-30d9d9800d06"))
+
+		w.Header().Add("Content-Type", "application/json")
+		w.WriteHeader(http.StatusAccepted)
+
+		fmt.Fprintf(w, createResp("my_network",
+			"This is my share network",
+			"998b42ee-2cee-4d36-8b95-67b5ca1f2109",
+			"53482b62-2c84-4a53-b6ab-30d9d9800d06"))
+	})
+}
diff --git a/openstack/sharedfilesystems/v2/sharenetworks/testing/requests_test.go b/openstack/sharedfilesystems/v2/sharenetworks/testing/requests_test.go
new file mode 100644
index 0000000..9a00885
--- /dev/null
+++ b/openstack/sharedfilesystems/v2/sharenetworks/testing/requests_test.go
@@ -0,0 +1,32 @@
+package testing
+
+import (
+	"testing"
+
+	"github.com/gophercloud/gophercloud/openstack/sharedfilesystems/v2/sharenetworks"
+	th "github.com/gophercloud/gophercloud/testhelper"
+	"github.com/gophercloud/gophercloud/testhelper/client"
+)
+
+// Verifies that a share network can be created correctly
+func TestCreate(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	MockCreateResponse(t)
+
+	options := &sharenetworks.CreateOpts{
+		Name:            "my_network",
+		Description:     "This is my share network",
+		NeutronNetID:    "998b42ee-2cee-4d36-8b95-67b5ca1f2109",
+		NeutronSubnetID: "53482b62-2c84-4a53-b6ab-30d9d9800d06",
+	}
+
+	n, err := sharenetworks.Create(client.ServiceClient(), options).Extract()
+	th.AssertNoErr(t, err)
+
+	th.AssertEquals(t, n.Name, "my_network")
+	th.AssertEquals(t, n.Description, "This is my share network")
+	th.AssertEquals(t, n.NeutronNetID, "998b42ee-2cee-4d36-8b95-67b5ca1f2109")
+	th.AssertEquals(t, n.NeutronSubnetID, "53482b62-2c84-4a53-b6ab-30d9d9800d06")
+}
diff --git a/openstack/sharedfilesystems/v2/sharenetworks/urls.go b/openstack/sharedfilesystems/v2/sharenetworks/urls.go
new file mode 100644
index 0000000..637ea98
--- /dev/null
+++ b/openstack/sharedfilesystems/v2/sharenetworks/urls.go
@@ -0,0 +1,7 @@
+package sharenetworks
+
+import "github.com/gophercloud/gophercloud"
+
+func createURL(c *gophercloud.ServiceClient) string {
+	return c.ServiceURL("share-networks")
+}