cdn operations; unit test stubs
diff --git a/rackspace/objectstorage/v1/cdncontainers/delegate.go b/rackspace/objectstorage/v1/cdncontainers/delegate.go
new file mode 100644
index 0000000..40c4ed1
--- /dev/null
+++ b/rackspace/objectstorage/v1/cdncontainers/delegate.go
@@ -0,0 +1,69 @@
+package cdncontainers
+
+import (
+	"github.com/rackspace/gophercloud"
+	os "github.com/rackspace/gophercloud/openstack/objectstorage/v1/containers"
+	"github.com/rackspace/gophercloud/pagination"
+)
+
+// ExtractNames interprets a page of List results when just the container
+// names are requested.
+func ExtractNames(page pagination.Page) ([]string, error) {
+	return os.ExtractNames(page)
+}
+
+// ListOpts are options for listing Rackspace CDN containers.
+type ListOpts struct {
+	EndMarker string `q:"end_marker"`
+	Format    string `q:"format"`
+	Limit     int    `q:"limit"`
+	Marker    string `q:"marker"`
+}
+
+// ToContainerListParams formats a ListOpts into a query string and boolean
+// representing whether to list complete information for each container.
+func (opts ListOpts) ToContainerListParams() (bool, string, error) {
+	q, err := gophercloud.BuildQueryString(opts)
+	if err != nil {
+		return false, "", err
+	}
+	return false, q.String(), nil
+}
+
+// List is a function that retrieves containers associated with the account as
+// well as account metadata. It returns a pager which can be iterated with the
+// EachPage function.
+func List(c *gophercloud.ServiceClient, opts *ListOpts) pagination.Pager {
+	return os.List(c, opts)
+}
+
+// Get is a function that retrieves the metadata of a container. To extract just
+// the custom metadata, pass the GetResult response to the ExtractMetadata
+// function.
+func Get(c *gophercloud.ServiceClient, containerName string) os.GetResult {
+	return os.Get(c, containerName)
+}
+
+// UpdateOpts is a structure that holds parameters for updating, creating, or
+// deleting a container's metadata.
+type UpdateOpts struct {
+	CDNEnabled   bool `h:"X-Cdn-Enabled"`
+	LogRetention bool `h:"X-Log-Retention"`
+	TTL          int  `h:"X-Ttl"`
+}
+
+// ToContainerUpdateMap formats a CreateOpts into a map of headers.
+func (opts UpdateOpts) ToContainerUpdateMap() (map[string]string, error) {
+	h, err := gophercloud.BuildHeaders(opts)
+	if err != nil {
+		return nil, err
+	}
+
+	return h, nil
+}
+
+// Update is a function that creates, updates, or deletes a container's
+// metadata.
+func Update(c *gophercloud.ServiceClient, containerName string, opts os.UpdateOptsBuilder) os.UpdateResult {
+	return os.Update(c, containerName, opts)
+}