gRPC xDS example
xDS is the protocol initially used by Envoy, that is evolving into a universal
data plan API for service mesh.
The xDS example is a Hello World client/server capable of being configured with
the XDS management protocol. Out-of-the-box it behaves the same as our other
hello world
example. The
server replies with responses including its hostname.
Note that xDS support is incomplete and experimental, with limited
compatibility.
xDS environment setup
This example doesn't include instuctions to setup xDS environment. Please
refer to documentation specific for your xDS management server.
The client also needs a bootstrap file. See gRFC
A27
for the bootstrap format.
The client
The client application needs to import the xDS package to install the resolver and balancers:
_ "code.aliyun.com/yjkj.ink/grpc/xds/experimental" // To install the xds resolvers and balancers.
Then, use xds-experimental
target scheme for the ClientConn.
$ export GRPC_XDS_BOOTSTRAP=/path/to/bootstrap.json
$ go run client/main.go "xDS world" xds-experimental:///target_service