OpenStack: Add support for Proxy

This commit makes sure the Proxy env vars
are used when authenticating with OpenStack
API.

Author: MaysaMacedo

pkg/storage/swift/swift.go

@@ -248,6 +248,7 @@ func (d *driver) getSwiftClient() (*gophercloud.ServiceClient, error) {
 		certPool.AppendCertsFromPEM([]byte(cert))
 		client := http.Client{
 			Transport: &http.Transport{
+				Proxy: http.ProxyFromEnvironment,
 				TLSClientConfig: &tls.Config{
 					RootCAs: certPool,
 				},