feat: disable default helm labels (kubernetes-sigs#3574)

* feat: disable helm labels

* fix: doc

Author: darkweaver87

helm/aws-load-balancer-controller/README.md

@@ -279,5 +279,5 @@ The default values set by the application itself can be confirmed [here](https:/
 | `autoscaling`                                  | If `autoscaling.enabled=true`, enable the HPA on the controller mainly to survive load induced failure by the calls to the `aws-load-balancer-webhook-service`. Please keep in mind that the controller pods have `priorityClassName: system-cluster-critical`, enabling HPA may lead to the eviction of other low-priority pods in the node | `false`                                           |
 | `serviceTargetENISGTags`                       | set of `key=value` pairs of AWS tags in addition to cluster name for finding the target ENI security group to which to add inbound rules from NLBs                                                                                                                                                                                           | None                                              |
 | `loadBalancerClass`                            | Sets the AWS load balancer type to be used when the Kubernetes service requests an external load balancer                                                                                                                                                                                                                                    | `service.k8s.aws/nlb`                             |
-
+| `creator`                                      | if set to a `value!=helm`, it will disable the addition of default helm labels                                                                                                                                                                                                                                                               | `helm`                                            |
 | `runtimeClassName`                 | Runtime class name for the controller pods , such as `gvisor` or `kata`. An unspecified `nil` or empty `""` RuntimeClassName is equivalent to the backwards-compatible default behavior as if the RuntimeClass feature is disabled.                                                                                                                      | ""                                                | 

helm/aws-load-balancer-controller/templates/_helpers.tpl

@@ -45,12 +45,14 @@ This enables using a shorter name for the resources, for example aws-load-balanc
 Common labels
 */}}
 {{- define "aws-load-balancer-controller.labels" -}}
+{{- if eq (default "helm" .Values.creator) "helm" -}}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
 helm.sh/chart: {{ include "aws-load-balancer-controller.chart" . }}
+{{- end }}
 {{ include "aws-load-balancer-controller.selectorLabels" . }}
 {{- if .Chart.AppVersion }}
 app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
 {{- end }}
-app.kubernetes.io/managed-by: {{ .Release.Service }}
 {{- if .Values.additionalLabels }}
 {{ toYaml .Values.additionalLabels }}
 {{- end -}}

helm/aws-load-balancer-controller/values.yaml

@@ -424,3 +424,6 @@ serviceTargetENISGTags:
 
 # Specifies the class of load balancer to use for services. This affects how services are provisioned if type LoadBalancer is used (default service.k8s.aws/nlb)
 loadBalancerClass:
+
+# creator will disable helm default labels, so you can only add yours
+# creator: "me"