update makefile to work with busybox

Makefile

@@ -1,11 +1,15 @@
 GO    := GO15VENDOREXPERIMENT=1 go
-pkgs   = $(shell $(GO) list ./... | grep -v /vendor/)
+pkgs   = .
 
 DOCKER_IMAGE_NAME       ?= exporter
 DOCKER_IMAGE_TAG        ?= latest
 
 
-all: format build test
+all: get format test build
+
+get:
+	@echo ">> get dependencies"
+	@$(GO) get
 
 style:
 	@echo ">> checking code style"
@@ -19,16 +23,12 @@ format:
 	@echo ">> formatting code"
 	@$(GO) fmt $(pkgs)
 
-vet:
-	@echo ">> vetting code"
-	@$(GO) vet $(pkgs)
-
 build:
 	@echo ">> building binaries"
-	@$(GO) build -o exporter
+	@$(GO) build -tags netgo -a -o exporter
 
 docker:
 	@echo ">> building docker image"
 	@docker build -t "$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" .
 
-.PHONY: all style format build test vet docker
+.PHONY: all get style format test build docker

exporter.go

@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/http"
+	"net/url"
+	"strings"
 	"syscall"
 	"time"
 
@@ -13,8 +15,6 @@ import (
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/prometheus/common/log"
 	"github.com/prometheus/common/version"
-	"net/url"
-	"strings"
 )
 
 const (
@@ -137,8 +137,6 @@ func (s *appScraper) stats() (*AppStats, error) {
 		return nil, fmt.Errorf("Invalid JSON returned, could not retreive duration.*")
 	}
 
-
-
 	return &stats, err
 }
 
@@ -221,7 +219,7 @@ func NewExporter(endpoint string) (*Exporter, error) {
 
 	// use custom http client with specific timeout
 	client := &http.Client{
-		Timeout: time.Duration(100*time.Millisecond),
+		Timeout: time.Duration(100 * time.Millisecond),
 	}
 
 	// create api client

exporter_test.go

@@ -1,11 +1,11 @@
 package main
 
 import (
-	"testing"
-	"net/http/httptest"
 	"fmt"
 	"net/http"
+	"net/http/httptest"
 	"reflect"
+	"testing"
 )
 
 func TestScraper(t *testing.T) {
@@ -13,7 +13,7 @@ func TestScraper(t *testing.T) {
 	tests := []struct {
 		json     string
 		expected *AppStats
-		ok bool
+		ok       bool
 	}{
 		{
 			json: `
@@ -48,14 +48,13 @@ func TestScraper(t *testing.T) {
 					Count:   91905,
 					Sum:     4484.3037570333245,
 					Average: 0.024613801985478054,
-
 				},
 			},
 			ok: true,
 		},
 		{
 			json: "invalid",
-			ok: false,
+			ok:   false,
 		},
 	}
 
@@ -72,8 +71,8 @@ func TestScraper(t *testing.T) {
 		}
 		stats, err := scraper.stats()
 
-		if err != nil{
+		if err != nil {
-			if !test.ok{
+			if !test.ok {
 				continue
 			}
 			t.Fatalf("Test %v: http.Get(%q) unexpected error: %v", i, server.URL, err)