1.3 KiB
Hacking on traffic
Repos used:
- https://github.com/envoyproxy/go-control-plane
- implements control plane, has testing stuff in pkg/test/main (iirc).
- https://github.com/grpc/grpc-go/tree/master/xds/internal/client
- implements client for xDS - can probably list all code out from there.
To see if things are working start the testing control plane from go-control-plane:
https://github.com/envoyproxy/envoy/blob/master/api/API_OVERVIEW.md
https://github.com/envoyproxy/learnenvoy/blob/master/_articles/service-discovery.md
Cluster: A cluster is a group of logically similar endpoints that Envoy connects to. In v2, RDS routes points to clusters, CDS provides cluster configuration and Envoy discovers the cluster members via EDS.
Testing
$ cd ~/src/github.com/envoyproxy/go-control-plane
% make integration.xds
This runs a binary from pkg/test/main. Now we're testing xDS, but there is also aDS (which does everything including xDS). I'm still figuring out what do to here.
The script stops, unless you have Envoy installed (which I haven't), but you can run it manually:
./bin/test --xds=xds --runtimes=1 -debug # for xds
This fails with timeout waiting for the first request, means you're consumer wasn't quick enough
in asking for xDS assignments.