cmd/k8s-operator: default ingress paths to '/' if not specified by user (#15706)

in resource

Fixes #14908

Signed-off-by: chaosinthecrd <tom@tmlabs.co.uk>

cmd/k8s-operator/ingress.go

@@ -292,9 +292,15 @@ func validateIngressClass(ctx context.Context, cl client.Client) error {
 
 func handlersForIngress(ctx context.Context, ing *networkingv1.Ingress, cl client.Client, rec record.EventRecorder, tlsHost string, logger *zap.SugaredLogger) (handlers map[string]*ipn.HTTPHandler, err error) {
 	addIngressBackend := func(b *networkingv1.IngressBackend, path string) {
+		if path == "" {
+			path = "/"
+			rec.Eventf(ing, corev1.EventTypeNormal, "PathUndefined", "configured backend is missing a path, defaulting to '/'")
+		}
+
 		if b == nil {
 			return
 		}
+
 		if b.Service == nil {
 			rec.Eventf(ing, corev1.EventTypeWarning, "InvalidIngressBackend", "backend for path %q is missing service", path)
 			return