export NewAggate public

This allows users to construct their own main().  This is useful for
constructing your own webserver setup for adding features such as api
signing.

Author: norrs

cmd/prom-aggregation-gateway/main.go

@@ -170,7 +170,7 @@ type aggate struct {
 	families     map[string]*dto.MetricFamily
 }
 
-func newAggate() *aggate {
+func NewAggate() *aggate {
 	return &aggate{
 		families: map[string]*dto.MetricFamily{},
 	}
@@ -284,7 +284,7 @@ func main() {
 	labelQueryParam := flag.String("label-query-param", "", "Append labels to metrics from query parameters <label-query-param>=<label-key>:<label-value>")
 	flag.Parse()
 
-	a := newAggate()
+	a := NewAggate()
 	http.HandleFunc("/metrics", a.handler)
 	http.HandleFunc("/api/ui/metrics", func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Access-Control-Allow-Origin", *cors)

cmd/prom-aggregation-gateway/main_test.go

@@ -198,7 +198,7 @@ func TestAggate(t *testing.T) {
 		{duplicateLabels, "", "", fmt.Errorf("%s", duplicateError), nil},
 		{reorderedLabels1, reorderedLabels2, reorderedLabelsResult, nil, nil},
 	} {
-		a := newAggate()
+		a := NewAggate()
 
 		if err := a.parseAndMerge(strings.NewReader(c.a), url.Values{}, ""); err != nil {
 			if c.err1 == nil {
@@ -242,7 +242,7 @@ func TestAggateWithServerLabels(t *testing.T) {
 		{duplicateLabels, "", "", fmt.Errorf("%s", duplicateErrorWithServerLabels), nil},
 		{reorderedLabels1, reorderedLabels2, reorderedLabelsResultWithServerLabels, nil, nil},
 	} {
-		a := newAggate()
+		a := NewAggate()
 
 		query := url.Values{}
 		query.Add("_label", "appversion:3.2")