Upgraded DataDog tracing library to 1.14.0

vendor/gopkg.in/DataDog/dd-trace-go.v1/ddtrace/ext/tags.go

@@ -27,10 +27,15 @@ const (
 	// HTTPURL sets the HTTP URL for a span.
 	HTTPURL = "http.url"
 
-	// TODO: In the next major version, suffix these constants (SpanType, etc)
-	// with "*Key" (SpanTypeKey, etc) to more easily differentiate between
+	// TODO: In the next major version, prefix these constants (SpanType, etc)
+	// with "Key*" (KeySpanType, etc) to more easily differentiate between
 	// constants representing tag values and constants representing keys.
 
+	// SpanName is a pseudo-key for setting a span's operation name by means of
+	// a tag. It is mostly here to facilitate vendor-agnostic frameworks like Opentracing
+	// and OpenCensus.
+	SpanName = "span.name"
+
 	// SpanType defines the Span type (web, db, cache).
 	SpanType = "span.type"
 
@@ -54,4 +59,20 @@ const (
 
 	// Environment specifies the environment to use with a trace.
 	Environment = "env"
+
+	// EventSampleRate specifies the rate at which this span will be sampled
+	// as an APM event.
+	EventSampleRate = "_dd1.sr.eausr"
+
+	// AnalyticsEvent specifies whether the span should be recorded as a Trace
+	// Search & Analytics event.
+	AnalyticsEvent = "analytics.event"
+
+	// ManualKeep is a tag which specifies that the trace to which this span
+	// belongs to should be kept when set to true.
+	ManualKeep = "manual.keep"
+
+	// ManualDrop is a tag which specifies that the trace to which this span
+	// belongs to should be dropped when set to true.
+	ManualDrop = "manual.drop"
 )