tree c96cf139f275595d746cd28fbd599a034679fa77
parent 28c130fe3d7ec9dcfbde6f3a05e9f32bbfa9e6b4
author Menghan Li <menghanl@google.com> 1605208116 -0800
committer GitHub <noreply@github.com> 1605208116 -0800
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xds: make xds client a singleton (#4015)

- xdsclient.New() no longer takes any input, all configs are from bootstrap file
  - added a NewForTesting()
- The returned *Client is a wrapper of the underlying client implementation, for ref-couting
- xds-resolver and xds-server no longer calls bootstrap.NewConfig. It only calls xdsclient.New()