chore: add concurrency settings to chart

Author: zqzten

charts/kubefed/README.md

@@ -123,6 +123,8 @@ chart and their default values.
 | controllermanager.clusterHealthCheckFailureThreshold | Minimum consecutive failures for the cluster health to be considered failed after having succeeded.                                                                          | 3                               |
 | controllermanager.clusterHealthCheckSuccessThreshold | Minimum consecutive successes for the cluster health to be considered successful after having failed.                                                                        | 1                               |
 | controllermanager.clusterHealthCheckTimeout          | Duration after which the cluster health check times out.                                                                                                                     | 3s                              |
+| controllermanager.maxConcurrentSyncReconciles   | The maximum number of concurrent Reconciles of sync controller which can be run.                                                                                                  | 1                               |
+| controllermanager.maxConcurrentStatusReconciles | The maximum number of concurrent Reconciles of status controller which can be run.                                                                                                | 1                               |
 | controllermanager.syncController.adoptResources      | Whether to adopt pre-existing resource in member clusters.                                                                                                        		        | Enabled                         |
 | controllermanager.service.labels                     | Kubernetes labels attached to the controller manager's services                                                                                                       		    | {}                              |
 | controllermanager.certManager.enabled             | Specifies whether to enable the usage of the cert-manager for the certificates generation.                                                                                      | false                           |

charts/kubefed/charts/controllermanager/crds/crds.yaml

@@ -692,6 +692,19 @@ spec:
                   `Namespaced` or `Cluster`. `Namespaced` indicates that the KubeFed
                   namespace will be the only target of the control plane.
                 type: string
+              concurrency:
+                properties:
+                  maxConcurrentSyncReconciles:
+                    description: The maximum number of concurrent Reconciles of sync controller
+                      which can be run. Defaults to 1.
+                    format: int64
+                    type: integer
+                  maxConcurrentStatusReconciles:
+                    description: The maximum number of concurrent Reconciles of status controller
+                      which can be run. Defaults to 1.
+                    format: int64
+                    type: integer
+                type: object
               syncController:
                 properties:
                   adoptResources:

charts/kubefed/charts/controllermanager/templates/kubefedconfig.yaml

@@ -18,6 +18,9 @@ spec:
     failureThreshold: {{ .Values.clusterHealthCheckFailureThreshold | default 3 }}
     successThreshold: {{ .Values.clusterHealthCheckSuccessThreshold | default 1 }}
     timeout: {{ .Values.clusterHealthCheckTimeout | default "3s" | quote }}
+  concurrency:
+    maxConcurrentSyncReconciles: {{ .Values.maxConcurrentSyncReconciles | default 1 }}
+    maxConcurrentStatusReconciles: {{ .Values.maxConcurrentStatusReconciles | default 1 }}
   syncController:
     adoptResources: {{ .Values.syncController.adoptResources | default "Enabled" | quote }}
   featureGates:

charts/kubefed/values.yaml

@@ -17,6 +17,8 @@ controllermanager:
   clusterHealthCheckTimeout:
   ## Supported options are `configmaps` and `endpoints`
   leaderElectResourceLock:
+  maxConcurrentSyncReconciles:
+  maxConcurrentStatusReconciles:
   syncController:
     adoptResources:
   ## Value of feature gates item should be either `Enabled` or `Disabled`