feat: add secure option for sending traces via otlphttp (#3973)

core/trace/agent.go

@@ -97,9 +97,12 @@ func createExporter(c Config) (sdktrace.SpanExporter, error) {
 	case kindOtlpHttp:
 		// Not support flexible configuration now.
 		opts := []otlptracehttp.Option{
-			otlptracehttp.WithInsecure(),
 			otlptracehttp.WithEndpoint(c.Endpoint),
 		}
+
+		if !c.OtlpHttpSecure {
+			opts = append(opts, otlptracehttp.WithInsecure())
+		}
 		if len(c.OtlpHeaders) > 0 {
 			opts = append(opts, otlptracehttp.WithHeaders(c.OtlpHeaders))
 		}

core/trace/config.go

@@ -17,6 +17,8 @@ type Config struct {
 	// For example
 	// /v1/traces
 	OtlpHttpPath string `json:",optional"`
+	// OtlpHttpSecure represents the scheme to use for OTLP HTTP transport.
+	OtlpHttpSecure bool `json:",optional"`
 	// Disabled indicates whether StartAgent starts the agent.
 	Disabled bool `json:",optional"`
 }