grpc-go/interop/observability/client/client.go

85 lines
2.6 KiB
Go

/*
*
* Copyright 2022 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Binary client is an interop client for Observability.
//
// See interop test case descriptions [here].
//
// [here]: https://github.com/grpc/grpc/blob/master/doc/interop-test-descriptions.md
package main
import (
"context"
"flag"
"log"
"net"
"strconv"
"time"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/gcp/observability"
"google.golang.org/grpc/interop"
testgrpc "google.golang.org/grpc/interop/grpc_testing"
)
var (
serverHost = flag.String("server_host", "localhost", "The server host name")
serverPort = flag.Int("server_port", 10000, "The server port number")
testCase = flag.String("test_case", "large_unary", "The action to perform")
numTimes = flag.Int("num_times", 1, "Number of times to run the test case")
)
func main() {
err := observability.Start(context.Background())
if err != nil {
log.Fatalf("observability start failed: %v", err)
}
defer observability.End()
flag.Parse()
serverAddr := *serverHost
if *serverPort != 0 {
serverAddr = net.JoinHostPort(*serverHost, strconv.Itoa(*serverPort))
}
conn, err := grpc.NewClient(serverAddr, grpc.WithTransportCredentials(insecure.NewCredentials()))
if err != nil {
log.Fatalf("grpc.NewClient(%q) = %v", serverAddr, err)
}
defer conn.Close()
tc := testgrpc.NewTestServiceClient(conn)
ctx := context.Background()
for i := 0; i < *numTimes; i++ {
if *testCase == "ping_pong" {
interop.DoPingPong(ctx, tc)
} else if *testCase == "large_unary" {
interop.DoLargeUnaryCall(ctx, tc)
} else if *testCase == "custom_metadata" {
interop.DoCustomMetadata(ctx, tc)
} else {
log.Fatalf("Invalid test case: %s", *testCase)
}
}
// TODO(stanleycheung): remove this once the observability exporter plugin is able to
// gracefully flush observability data to cloud at shutdown
// TODO(stanleycheung): see if we can reduce the number 65
const exporterSleepDuration = 65 * time.Second
log.Printf("Sleeping %v before closing...", exporterSleepDuration)
time.Sleep(exporterSleepDuration)
}