Initial cloud-services repo - gateway service + pkg modules

pkg/tracer/tracer.go

@@ -0,0 +1,22 @@
+package tracer
+
+import (
+	"gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer"
+
+	"fiskerinc.com/modules/utils/envtool"
+)
+
+var agentAvailable bool
+
+func Start() {
+	agentAvailable = envtool.GetEnv("DD_AGENT_HOST", "") != ""
+	if agentAvailable {
+		tracer.Start()
+	}
+}
+
+func Stop() {
+	if agentAvailable {
+		tracer.Stop()
+	}
+}