add HELM support for aws-api-throttle (kubernetes-sigs#2745)

Author: M00nF1sh

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

@@ -197,6 +197,8 @@ The default values set by the application itself can be confirmed [here](https:/
 | `ingressClassParams.spec`                      | IngressClassParams defined ingress specifications                                                        | {}                                                                                 |
 | `region`                                       | The AWS region for the kubernetes cluster                                                                | None                                                                               |
 | `vpcId`                                        | The VPC ID for the Kubernetes cluster                                                                    | None                                                                               |
+| `awsApiEndpoints`                              | Custom AWS API Endpoints                                                                                 | None                                                                               |
+| `awsApiThrottle`                               | Custom AWS API throttle settings                                                                         | None                                                                               |
 | `awsMaxRetries`                                | Maximum retries for AWS APIs                                                                             | None                                                                               |
 | `enablePodReadinessGateInject`                 | If enabled, targetHealth readiness gate will get injected to the pod spec for the matching endpoint pods | None                                                                               |
 | `enableShield`                                 | Enable Shield addon for ALB                                                                              | None                                                                               |

helm/aws-load-balancer-controller/templates/deployment.yaml

@@ -71,6 +71,9 @@ spec:
         {{- if .Values.awsApiEndpoints }}
         - --aws-api-endpoints={{ .Values.awsApiEndpoints }}
         {{- end }}
+        {{- if .Values.awsApiThrottle }}
+        - --aws-api-throttle={{ join "," .Values.awsApiThrottle }}
+        {{- end }}
         {{- if .Values.awsMaxRetries }}
         - --aws-max-retries={{ .Values.awsMaxRetries }}
         {{- end }}

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

@@ -137,9 +137,16 @@ vpcId:
 # Custom AWS API Endpoints (serviceID1=URL1,serviceID2=URL2)
 awsApiEndpoints:
 
+# awsApiThrottle specifies custom AWS API throttle settings (serviceID1:operationRegex1=rate:burst,serviceID2:operationRegex2=rate:burst)
+# example: --set awsApiThrottle="{Elastic Load Balancing v2:RegisterTargets|DeregisterTargets=4:20,Elastic Load Balancing v2:.*=10:40}"
+awsApiThrottle:
+
 # Maximum retries for AWS APIs (default 10)
 awsMaxRetries:
 
+
+
+
 # If enabled, targetHealth readiness gate will get injected to the pod spec for the matching endpoint pods (default true)
 enablePodReadinessGateInject: