Migrate to Go's new module system

Author: jviide

Dockerfile

@@ -1,8 +1,8 @@
 FROM golang:1.11-alpine as builder
-RUN apk add --no-cache gcc libnetfilter_queue-dev linux-headers musl-dev
-WORKDIR /go/src/github.com/hownetworks/tracetrout
+RUN apk add --no-cache gcc libnetfilter_queue-dev linux-headers musl-dev git
+WORKDIR /src
 COPY . .
-RUN go build -o /tracetrout -ldflags='-s -w'
+RUN go build -mod=readonly -o=/tracetrout -ldflags='-s -w'
 
 FROM alpine:3.8
 ARG IPV6_SUPPORT

Gopkg.lock

@@ -0,0 +1,9 @@
+module github.com/hownetworks/tracetrout
+
+require (
+	github.com/google/gopacket v1.1.14
+	github.com/gorilla/handlers v1.3.0
+	github.com/hownetworks/nfq-go v1.0.1
+	github.com/kelseyhightower/envconfig v1.3.0
+	github.com/rs/cors v1.3.0
+)

Gopkg.toml

@@ -0,0 +1,10 @@
+github.com/google/gopacket v1.1.14 h1:1+TEhSu8Mh154ZBVjyd1Nt2Bb7cnyOeE3GQyb1WGLqI=
+github.com/google/gopacket v1.1.14/go.mod h1:UCLx9mCmAwsVbn6qQl1WIEt2SO7Nd2fD0th1TBAsqBw=
+github.com/gorilla/handlers v1.3.0 h1:tsg9qP3mjt1h4Roxp+M1paRjrVBfPSOpBuVclh6YluI=
+github.com/gorilla/handlers v1.3.0/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/OAirnOIQ=
+github.com/hownetworks/nfq-go v1.0.1 h1:I8oiNfvtDVRQsw1Fbasc/dwqFAtJ1B95lEI3KjynS8Q=
+github.com/hownetworks/nfq-go v1.0.1/go.mod h1:mClQvfA0qjMCUJD71Jm8LLrmhLXj9GqjqdKflt+vIQw=
+github.com/kelseyhightower/envconfig v1.3.0 h1:IvRS4f2VcIQy6j4ORGIf9145T/AsUB+oY8LyvN8BXNM=
+github.com/kelseyhightower/envconfig v1.3.0/go.mod h1:cccZRl6mQpaq41TPp5QxidR+Sa3axMbJDNb//FQX6Gg=
+github.com/rs/cors v1.3.0 h1:R0sy4XekGcOFoby9D76NXXg2birJ3WFkzGvXF9Kn3xE=
+github.com/rs/cors v1.3.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=

go.mod

@@ -1,4 +1,4 @@
-package main // import "github.com/hownetworks/tracetrout"
+package main
 
 import (
 	"crypto/tls"