Add sync.WaitGroup for proper error handling in Run()

ca/ca.go

@@ -8,6 +8,7 @@ import (
 	"net/http"
 	"net/url"
 	"reflect"
+	"sync"
 
 	"github.com/go-chi/chi"
 	"github.com/pkg/errors"
@@ -238,18 +239,28 @@ func (ca *CA) Init(config *authority.Config) (*CA, error) {
 // Run starts the CA calling to the server ListenAndServe method.
 func (ca *CA) Run() error {
 
+	var wg sync.WaitGroup
 	errors := make(chan error, 1)
-	go func() {
+
 	if ca.insecureSrv != nil {
-			errors <- ca.insecureSrv.ListenAndServe()
-		}
-	}()
+		wg.Add(1)
 		go func() {
+			defer wg.Done()
+			errors <- ca.insecureSrv.ListenAndServe()
+		}()
+	}
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
 		errors <- ca.srv.ListenAndServe()
 	}()
 
 	// wait till error occurs; ensures the servers keep listening
 	err := <-errors
+
+	wg.Wait()
+
 	return err
 }