1 //
2 // Copyright 2019 gRPC authors.
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //     http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16 
17 #include <grpc/support/port_platform.h>
18 
19 #include "src/core/ext/xds/xds_bootstrap.h"
20 
21 #include "absl/types/optional.h"
22 
23 #include "src/core/lib/gpr/string.h"
24 #include "src/core/lib/gprpp/env.h"
25 
26 namespace grpc_core {
27 
28 // TODO(roth,apolcyn): remove this federation env var after the 1.55
29 // release.
XdsFederationEnabled()30 bool XdsFederationEnabled() {
31   auto value = GetEnv("GRPC_EXPERIMENTAL_XDS_FEDERATION");
32   if (!value.has_value()) return true;
33   bool parsed_value;
34   bool parse_succeeded = gpr_parse_bool_value(value->c_str(), &parsed_value);
35   return parse_succeeded && parsed_value;
36 }
37 
38 }  // namespace grpc_core
39