# cluster domain. Default value is "cluster.local".
      clusterDomain: "cluster.local"

      # Per Component log level for proxy, applies to gateways and sidecars. If a component level is
      # not set, then the global "logLevel" will be used.
      componentLogLevel: "misc:error"

      # If set, newly injected sidecars will have core dumps enabled.

- CAP_SYS_ADMIN
- CAP_NET_ADMIN
- CAP_NET_RAW

## Ambient mode details

Fundamentally, this component is responsible for the following:

- Sets up redirection with newly-started (or newly-added, previously-started) application pods such that traffic from application pods is forwarded to the local node's ztunnel pod.

three main components:

- [MeshConfig](https://github.com/istio/api/blob/master/mesh/v1alpha1/config.proto) for runtime config consumed directly by Istio
control plane components.
- [Component configuration API](https://github.com/istio/api/blob/00671adacbea20f941cb20cce021bc63cbad1840/operator/v1alpha1/operator.proto#L42-L93), for managing

    release: {{ .Release.Name }}
    istio.io/rev: {{ .Values.revision | default "default" | quote }}
    install.operator.istio.io/owning-resource: {{ .Values.ownerName | default "unknown" }}
    operator.istio.io/component: "IngressGateways"
spec:
{{- if not $gateway.autoscaleEnabled }}
{{- if $gateway.replicaCount }}
  replicas: {{ $gateway.replicaCount }}
{{- end }}
{{- end }}
  selector:
    matchLabels:

		return pilotxds.IstioControlPlaneInstance{
			Component: "MISSING",
			ID:        "MISSING",
			Info: istioversion.BuildInfo{
				Version: "MISSING CP ID",
			},
		}
	}

	cpID := pilotxds.IstioControlPlaneInstance{}
	err := json.Unmarshal([]byte(xdsResponse.ControlPlane.Identifier), &cpID)
	if err != nil {
		return pilotxds.IstioControlPlaneInstance{
			Component: "INVALID",
			ID:        "INVALID",

	cmd.PersistentFlags().DurationVar(&args.ReadinessTimeout, "readiness-timeout", 300*time.Second,
		"Maximum time to wait for Istio resources in each component to be ready.")
	cmd.PersistentFlags().BoolVarP(&args.SkipConfirmation, "skip-confirmation", "y", false, skipConfirmationFlagHelpStr)
	cmd.PersistentFlags().BoolVar(&args.Force, "force", false, ForceFlagHelpStr)

          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "expr": "sum(istio_build) by (component, tag)",
          "format": "time_series",
          "intervalFactor": 1,
          "legendFormat": "{{ component }}: {{ tag }}",
          "refId": "A"
        }
      ],
      "title": "Istio Components by Version",
      "type": "timeseries"
    },
    {

  // ResourceClaimStatus this ResourceHandle is embedded in.
  optional string driverName = 1;

  // Data contains the opaque data associated with this ResourceHandle. It is
  // set by the controller component of the resource driver whose name
  // matches the DriverName set in the ResourceClaimStatus this
  // ResourceHandle is embedded in. It is set at allocation time and is

# Ztunnel

This document provides an overview of the architecture and design decisions around Ztunnel, the node-proxy component in ambient mode.

## Background and motivation

Motivations to implement ztunnel generally came from two areas.

First, and most importantly, it serves as a means to implement the real goal: waypoints.

  // For example:
  //   - "/healthz" is legal
  //   - "/hea*" is illegal
  //   - "/hea" is legal but matches nothing
  //   - "/hea/*" also matches nothing
  //   - "/healthz/*" matches all per-component health checks.
  // "*" matches all non-resource urls. if it is present, it must be the only entry.
  // +listType=set
  // Required.
  repeated string nonResourceURLs = 6;
}