Build Docker image, Travis build against 2 Go versions

.travis.yml

@@ -1,9 +1,11 @@
 language: go
 
 go:
-  - tip
+  - 1.4
+  - 1.5
 
-install: make deps
+install:
+  - make deps
 
 script:
   - make test

Dockerfile

@@ -0,0 +1,12 @@
+FROM gliderlabs/alpine:3.2
+
+ADD . /go/src/github.com/x-cray/marathon-service-registrator
+RUN apk-install -t build-deps go git \
+	&& cd /go/src/github.com/x-cray/marathon-service-registrator \
+	&& export GOPATH=/go \
+	&& go get \
+	&& go build -ldflags "-X main.version $(cat VERSION)" -o /bin/registrator \
+	&& rm -rf /go \
+	&& apk del --purge build-deps
+
+ENTRYPOINT ["/bin/registrator"]

Makefile

@@ -1,10 +1,15 @@
+NAME=marathon-service-registrator
+VERSION=$(shell cat VERSION)
 DEPS = $(shell go list -f '{{range .TestImports}}{{.}} {{end}}' ./...)
 PACKAGES = $(shell go list ./...)
 
 deps:
 	@echo "--> Installing build dependencies"
 	@go get -d -v ./... $(DEPS)
 
+docker:
+	docker build -t $(NAME):$(VERSION) .
+
 test:
 	@echo "--> Running tests"
 	@go test -v -cover ./...

README.md

@@ -1,5 +1,6 @@
-[![Build Status](https://travis-ci.org/x-cray/marathon-service-registrator.svg?branch=master)](https://travis-ci.org/x-cray/marathon-service-registrator)
 # Marathon Service Registrator
+[![Build Status](https://travis-ci.org/x-cray/marathon-service-registrator.svg?branch=master)](https://travis-ci.org/x-cray/marathon-service-registrator)
+[![Docker Pulls](https://img.shields.io/docker/pulls/xcray/marathon-service-registrator.svg)](https://hub.docker.com/r/xcray/marathon-service-registrator/)
 
 Consul service registry bridge for Marathon.
 

VERSION

@@ -0,0 +1 @@
+0.0.1

registrator.go

@@ -20,7 +20,7 @@ const (
 )
 
 var (
-	version        = "0.0.1"
+	version        = ""
 	app            = kingpin.New("registrator", "Automatically registers/deregisters Marathon tasks as services in Consul.").Version(version)
 	consul         = app.Flag("consul", "Address and port of Consul agent").Short('c').Default("http://127.0.0.1:8500").URL()
 	marathon       = app.Flag("marathon", "URL of Marathon instance. Multiple inctances may be specified in case of HA setup: http://addr1:8080,addr2:8080,addr3:8080").Short('m').Default("http://127.0.0.1:8080").String()