Imports github.com/containous/traefik/log github.com/containous/traefik/middlewares/tracing/zipkin github.com/opentracing/opentracing-go github.com/containous/traefik/middlewares/tracing/jaeger github.com/opentracing/opentracing-go/ext github.com/urfave/negroni Standard library imports bufio fmt io net net/http