telemetry: disable telemetry by default

cmd/hanyuu/main.go

@@ -187,7 +187,7 @@ func main() {
 	// setup configuration file as top-level flag
 	flag.StringVar(&configFile, "config", "hanyuu.toml", "filepath to configuration file")
 	flag.StringVar(&logLevel, "loglevel", "info", "loglevel to use")
-	flag.BoolVar(&useTelemetry, "telemetry", true, "to enable telemetry")
+	flag.BoolVar(&useTelemetry, "telemetry", false, "to enable telemetry")
 
 	// add all our top-level flags as important flags to subcommands
 	flag.VisitAll(func(f *flag.Flag) {

rpc/client.go

@@ -5,13 +5,14 @@ import (
 
 	radio "github.com/R-a-dio/valkyrie"
 	"github.com/R-a-dio/valkyrie/util/eventstream"
-	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
 	grpc "google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"
 	emptypb "google.golang.org/protobuf/types/known/emptypb"
 	wrapperspb "google.golang.org/protobuf/types/known/wrapperspb"
 )
 
+var GrpcDial = grpc.Dial
+
 func PrepareConn(addr string) *grpc.ClientConn {
 	if len(addr) == 0 {
 		panic("invalid address passed to PrepareConn: empty string")
@@ -21,10 +22,7 @@ func PrepareConn(addr string) *grpc.ClientConn {
 		addr = "localhost" + addr
 	}
 
-	conn, err := grpc.Dial(addr,
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
-		grpc.WithStatsHandler(otelgrpc.NewClientHandler()),
-	)
+	conn, err := GrpcDial(addr, grpc.WithTransportCredentials(insecure.NewCredentials()))
 	if err != nil {
 		panic("failed to setup grpc client: " + err.Error())
 	}

telemetry/otel.go

@@ -53,6 +53,7 @@ func Init(ctx context.Context, service string) (*trace.TracerProvider, error) {
 	mariadb.DatabaseConnectFunc = DatabaseConnect
 	website.NewRouter = NewRouter
 	rpc.NewGrpcServer = NewGrpcServer
+	rpc.GrpcDial = GrpcDial
 
 	return tp, err
 }
@@ -77,3 +78,10 @@ func NewGrpcServer(opts ...grpc.ServerOption) *grpc.Server {
 	opts = append(opts, grpc.StatsHandler(otelgrpc.NewServerHandler()))
 	return grpc.NewServer(opts...)
 }
+
+func GrpcDial(addr string, opts ...grpc.DialOption) (*grpc.ClientConn, error) {
+	opts = append(opts,
+		grpc.WithStatsHandler(otelgrpc.NewClientHandler()),
+	)
+	return grpc.Dial(addr, opts...)
+}