Merge pull request #3366 from mooncak/fix_typos

Fix some typos

internal/ingress/controller/process/nginx.go

@@ -46,7 +46,7 @@ NGINX master process died (%v): %v
 }
 
 // WaitUntilPortIsAvailable waits until there is no NGINX master or worker
-// process/es listentning in a particular port.
+// process/es listening in a particular port.
 func WaitUntilPortIsAvailable(port int) {
 	// we wait until the workers are killed
 	for {

internal/ingress/metric/collectors/controller.go

@@ -177,7 +177,7 @@ func (cm *Controller) SetSSLExpireTime(servers []*ingress.Server) {
 	}
 }
 
-// RemoveMetrics removes metrics for hostames not available anymore
+// RemoveMetrics removes metrics for hostnames not available anymore
 func (cm *Controller) RemoveMetrics(hosts []string, registry prometheus.Gatherer) {
 	mfs, err := registry.Gather()
 	if err != nil {

internal/ingress/metric/collectors/socket.go

@@ -97,7 +97,7 @@ var (
 )
 
 // NewSocketCollector creates a new SocketCollector instance using
-// the ingresss watch namespace and class used by the controller
+// the ingress watch namespace and class used by the controller
 func NewSocketCollector(pod, namespace, class string) (*SocketCollector, error) {
 	socket := "/tmp/prometheus-nginx.socket"
 	listener, err := net.Listen("unix", socket)

internal/ingress/metric/collectors/testutils.go

@@ -48,7 +48,7 @@ func GatherAndCompare(c prometheus.Collector, expected string, metricNames []str
 	}
 
 	if !reflect.DeepEqual(metrics, normalizeMetricFamilies(expectedMetrics)) {
-		// Encode the gathered output to the readbale text format for comparison.
+		// Encode the gathered output to the readable text format for comparison.
 		var buf1 bytes.Buffer
 		enc := expfmt.NewEncoder(&buf1, expfmt.FmtText)
 		for _, mf := range metrics {