if len(filename) == 0 {
			filename = "YYY-istio-cni.conf"
		}
		return filepath.Join(cfg.mountedCNINetDir, filename), nil
	}

	watcher, err := util.CreateFileWatcher(cfg.mountedCNINetDir)
	if err != nil {
		return "", err
	}
	defer watcher.Close()

	for len(filename) == 0 {
		filename, err = getDefaultCNINetwork(cfg.mountedCNINetDir)
		if err == nil {
			break
		}

  // +optional
  optional string message = 4;
}

// An empty preferred scheduling term matches all objects with implicit weight 0
// (i.e. it's a no-op). A null preferred scheduling term matches no objects (i.e. is also a no-op).
message PreferredSchedulingTerm {
  // Weight associated with matching the corresponding nodeSelectorTerm, in the range 1-100.

#### CRD Watcher

For watches against custom types (CRDs), we want to gracefully handle missing CRDs. Naively starting informers against the missing types would result in errors and blocking startup. Instead, we introduce a "CRD Watcher" component that watches the CRDs in the cluster to determine if they are available or not.

	n := match.GetMatcherTree().GetInput().GetName()

	var m map[string]*matcher.Matcher_OnMatch
	equality := "="
	switch v := match.GetMatcherTree().GetTreeType().(type) {
	case *matcher.Matcher_MatcherTree_ExactMatchMap:
		m = v.ExactMatchMap.Map
	case *matcher.Matcher_MatcherTree_PrefixMatchMap:
		m = v.PrefixMatchMap.Map
		equality = "^"
	case *matcher.Matcher_MatcherTree_CustomMatch:
		tc := v.CustomMatch.GetTypedConfig()

Xiaopeng Han <******@****.***> 1709887099 +0800

	logLevel string
}

type scopeStackTraceLevelPair ScopeLevelPair

func newScopeLevelPair(slp, validationPattern string) (*ScopeLevelPair, error) {
	matched, err := regexp.MatchString(validationPattern, slp)
	if err != nil {
		return nil, err
	}
	if !matched {
		return nil, fmt.Errorf("pattern %s did not match", slp)
	}
	scopeLogLevel := strings.Split(slp, ":")
	s := &ScopeLevelPair{
		scope:    scopeLogLevel[0],

  // matches only a single label. You cannot have a wildcard label by itself (e.g. Host == "*").
  // Requests will be matched against the Host field in the following way:
  // 1. If host is precise, the request matches this rule if the http host header is equal to Host.
  // 2. If host is a wildcard, then the request matches this rule if the http host header

```yaml
apiVersion: install.istio.io/v1alpha1
kind: IstioOperator
spec:
  components:
    pilot:
      k8s:
        overlays:
        - kind: Deployment
          name: istio-pilot
          patches:
          - path: spec.template.spec.containers.[name:discovery].args.[30m]
            value: "60m" # OVERRIDDEN
          - path: spec.template.spec.containers.[name:discovery].ports.[containerPort:8080].containerPort

  // MatchConditions is a list of conditions that must be met for a request to be sent to this
  // webhook. Match conditions filter requests that have already been matched by the rules,
  // namespaceSelector, and objectSelector. An empty list of matchConditions matches all requests.
  // There are a maximum of 64 match conditions allowed.
  //
  // The exact matching logic is (in order):

                  },
                  "custom_match": {
                    "name": "ip",
                    "typed_config": {
                      "@type": "type.googleapis.com/xds.type.matcher.v3.IPMatcher",
                      "range_matchers": [
                        {
                          "ranges": [
                            {
                              "address_prefix": "10.111.182.109",