Adjust webhook validation

Signed-off-by: Matej Gera <[email protected]>

Author: matej-g

apis/v1alpha1/collector_webhook.go

@@ -180,10 +180,14 @@ func (c CollectorWebhook) validate(r *OpenTelemetryCollector) (admission.Warning
 	}
 
 	// validate target allocation
-	if r.Spec.TargetAllocator.Enabled && r.Spec.Mode != ModeStatefulSet {
+	if r.Spec.TargetAllocator.Enabled && (r.Spec.Mode != ModeStatefulSet && r.Spec.Mode != ModeDaemonSet) {
 		return warnings, fmt.Errorf("the OpenTelemetry Collector mode is set to %s, which does not support the target allocation deployment", r.Spec.Mode)
 	}
 
+	if r.Spec.TargetAllocator.AllocationStrategy == OpenTelemetryTargetAllocatorAllocationStrategyPerNode && r.Spec.Mode != ModeDaemonSet {
+		return warnings, fmt.Errorf("target allocation strategy %s is only supported in OpenTelemetry Collector mode %s", OpenTelemetryTargetAllocatorAllocationStrategyPerNode, ModeDaemonSet)
+	}
+
 	// validate Prometheus config for target allocation
 	if r.Spec.TargetAllocator.Enabled {
 		promCfg, err := ta.ConfigToPromConfig(r.Spec.Config)