dynamic custom config should saved in ConfigMap

[veezhang]

Introduction

Currently, only static custom configurations are stored in ConfigMap. Dynamic custom configurations are set through the flags api and need to be set every time Reconcile, including Pods restart.

nebula-operator/pkg/controller/component/helper.go

Lines 196 to 199 in 51761f6

	flags := staticFlags(cfg)
	klog.V(3).Infof("cluster [%s/%s] sync %s configmap with custom static configs %v", namespace, clusterName,
	component.ComponentType().String(), flags)
	customConf := config.AppendCustomConfig(template, flags)

I think dynamic custom configuration should also be stored in ConfigMap. It only needs to be set once when it changed, and it will automatically take effect after restarting.

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