feat(httpcheck): add 'url' label to charts

modules/httpcheck/charts.go

@@ -13,7 +13,7 @@ const (
 	prioResponseInStatusDuration
 )
 
-var charts = module.Charts{
+var httpCheckCharts = module.Charts{
 	responseTimeChart.Copy(),
 	responseLengthChart.Copy(),
 	responseStatusChart.Copy(),

modules/httpcheck/httpcheck.go

@@ -47,6 +47,8 @@ type (
 		Config      `yaml:",inline"`
 		UpdateEvery int `yaml:"update_every"`
 
+		charts *module.Charts
+
 		acceptedStatuses map[int]bool
 		reResponse       *regexp.Regexp
 		client           client
@@ -63,6 +65,8 @@ func (hc *HTTPCheck) Init() bool {
 		return false
 	}
 
+	hc.charts = hc.initCharts()
+
 	httpClient, err := hc.initHTTPClient()
 	if err != nil {
 		hc.Errorf("init HTTP client: %v", err)
@@ -96,7 +100,7 @@ func (hc *HTTPCheck) Check() bool {
 }
 
 func (hc *HTTPCheck) Charts() *module.Charts {
-	return charts.Copy()
+	return hc.charts
 }
 
 func (hc *HTTPCheck) Collect() map[string]int64 {

modules/httpcheck/httpcheck_test.go

@@ -52,7 +52,10 @@ func TestHTTPCheck_Check(t *testing.T) {
 }
 
 func TestHTTPCheck_Charts(t *testing.T) {
-	assert.NotNil(t, New().Charts())
+	job := New()
+	job.URL = testURL
+	require.True(t, job.Init())
+	assert.NotNil(t, job.Charts())
 }
 
 func TestHTTPCheck_Collect(t *testing.T) {

modules/httpcheck/init.go

@@ -4,9 +4,11 @@ package httpcheck
 
 import (
 	"errors"
-	"github.com/netdata/go.d.plugin/pkg/web"
 	"net/http"
 	"regexp"
+
+	"github.com/netdata/go.d.plugin/agent/module"
+	"github.com/netdata/go.d.plugin/pkg/web"
 )
 
 func (hc *HTTPCheck) validateConfig() error {
@@ -26,3 +28,15 @@ func (hc *HTTPCheck) initResponseMatchRegexp() (*regexp.Regexp, error) {
 	}
 	return regexp.Compile(hc.ResponseMatch)
 }
+
+func (hc *HTTPCheck) initCharts() *module.Charts {
+	charts := httpCheckCharts.Copy()
+
+	for _, chart := range *charts {
+		chart.Labels = []module.Label{
+			{Key: "url", Value: hc.URL},
+		}
+	}
+
+	return charts
+}