Add StorageOS volume plugin

vendor/github.com/storageos/go-api/client_unix.go

@@ -0,0 +1,25 @@
+// +build !windows
+// Copyright 2016 go-dockerclient authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package storageos
+
+import (
+	"net"
+	"net/http"
+)
+
+// initializeNativeClient initializes the native Unix domain socket client on
+// Unix-style operating systems
+func (c *Client) initializeNativeClient() {
+	if c.endpointURL.Scheme != unixProtocol {
+		return
+	}
+	socketPath := c.endpointURL.Path
+	tr := defaultTransport()
+	tr.Dial = func(network, addr string) (net.Conn, error) {
+		return c.Dialer.Dial(unixProtocol, socketPath)
+	}
+	c.nativeHTTPClient = &http.Client{Transport: tr}
+}