}
		responses = append(responses, response)
		if !all && len(responses) > 0 {
			break
		}
	}
	return responses, nil
}

// queryDebugSynczViaAgents sends a debug/syncz xDS request via Istio Agents.
// By this way, even if istioctl cannot access a specific `istiod` instance directly,
// `istioctl` can access the debug endpoint.
// If `all` is true, `queryDebugSynczViaAgents` iterates all the pod having a proxy

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.

  // manualSelector controls generation of pod labels and pod selectors.
  // Leave `manualSelector` unset unless you are certain what you are doing.
  // When false or unset, the system pick labels unique to this job
  // and appends those labels to the pod template.  When true,
  // the user is responsible for picking unique labels and specifying
  // the selector.  Failure to pick a unique label may cause this