p>For mesh level configuration, put the resource in the root configuration namespace for
your Istio installation <em>without</em> a workload selector:</p><pre><code class=language-yaml>apiVersion: networking.istio.io/v1beta1
kind: ProxyConfig
metadata:
  name: my-proxyconfig
  namespace: istio-system
spec:
  concurrency: 0
  image:
    imageType: distroless
</code></pre><p>For namespace level configuration, put the resource in the desired namespace without a workload selector:</p><pre><code class=language-y