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Example xDS Server

This is an example of a trivial xDS V3 control plane server. It serves an Envoy configuration that's roughly equivalent to the one used by the Envoy "Quick Start" docs: a simple http proxy. You can run the example using the project top-level Makefile, e.g.:

$ make example

The Makefile builds the example server and then runs build/example.sh which runs both Envoy and the example server. The example server serves a configuration defined in internal/example/resource.go. If everything works correctly, you should be able to open a browser to http://localhost:10000 and see Envoy's website.

Files

  • main/main.go is the example program entrypoint. It instantiates the cache and xDS server and runs the xDS server process.
  • resource.go generates a Snapshot structure which describes the configuration that the xDS server serves to Envoy.
  • server.go runs the xDS control plane server.
  • logger.go implements the pkg/log/Logger interface which provides logging services to the cache.