verify if collector mode is compatible with ingress settings

Signed-off-by: Benedikt Bongartz <[email protected]>

apis/v1alpha1/opentelemetrycollector_webhook.go

@@ -16,6 +16,7 @@ package v1alpha1
 
 import (
 	"fmt"
+	"strings"
 
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/util/validation"
@@ -166,5 +167,12 @@ func (r *OpenTelemetryCollector) validateCRDSpec() error {
 
 	}
 
+	mode := strings.ToLower(string(r.Spec.Mode))
+	if r.Spec.Ingress.Type != "" && (mode != "deployment" || mode != "daemonset" || mode != "statefulset") {
+		return fmt.Errorf("the OptenTelemetry Spec Ingress configuiration is incorrect. Ingress can only be used in combination with the modes: %s, %s, %s",
+			"deployment", "daemenset", "statefulset",
+		)
+	}
+
 	return nil
 }