on_x:
              value: upstream_peer.labels[&#39;app&#39;].value
        - match:
            metric: ALL_METRICS
            mode: SERVER
          tagOverrides:
            source_x:
              value: downstream_peer.labels[&#39;app&#39;].value
      providers:
        - name: prometheus
</code></pre></li></ol><h2 id=disable-metrics>禁用指标</h2><ol><li><p>通过以下配置禁用所有指标：</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: telemetry.istio.