mmand.</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>cat &lt;&lt;&#39;EOF&#39; &gt; tracing.yaml
apiVersion: install.istio.io/v1alpha1
kind: IstioOperator
spec:
  meshConfig:
    defaultConfig:
      tracing:
        sampling: 10
        custom_tags:
          my_tag_header:
            header:
              name: host
EOF
</code></pre><h3 id=using-proxy-istio-io-config-annotation-for-trace-settings>Using <code>proxy.istio.io/config</code> annotation for trace settings</h3><p>You c