public static AuthTokenProvider build(OpenstackIdentityClient identityClient, String tenant, String username,
String password) {
V2AuthRequest request = new V2AuthRequest();
request.auth = new V2AuthRequest.V2AuthCredentials();
request.auth.tenantName = tenant;
request.auth.passwordCredentials = new PasswordCredentials();
request.auth.passwordCredentials.username = username;
request.auth.passwordCredentials.password = password;
return new AuthTokenProvider(identityClient, request);
}