Tracing: Use common traceID context value for opentracing and opentelemetry (#46411) (#47786)

* use common traceID context value for opentracing and opentelemetry

* support sampled trace IDs as well

* inject traceID into NormalResponse on errors

* Finally the test passed

* fix the test

* fix linter

* change the function parameter

Co-authored-by: Ying WANG <ying.wang@grafana.com>
(cherry picked from commit 41012af997)

Co-authored-by: Serge Zaitsev <serge.zaitsev@grafana.com>

pkg/models/context.go

@@ -4,6 +4,7 @@ import (
 	"strings"
 
 	"github.com/grafana/grafana/pkg/infra/log"
+	"github.com/grafana/grafana/pkg/infra/tracing"
 	"github.com/grafana/grafana/pkg/setting"
 	"github.com/grafana/grafana/pkg/web"
 	"github.com/prometheus/client_golang/prometheus"
@@ -51,9 +52,11 @@ func (ctx *ReqContext) IsApiRequest() bool {
 
 func (ctx *ReqContext) JsonApiErr(status int, message string, err error) {
 	resp := make(map[string]interface{})
+	traceID := tracing.TraceIDFromContext(ctx.Req.Context(), false)
 
 	if err != nil {
-		ctx.Logger.Error(message, "error", err)
+		resp["traceID"] = traceID
+		ctx.Logger.Error(message, "error", err, "traceID", traceID)
 		if setting.Env != setting.Prod {
 			resp["error"] = err.Error()
 		}