 all workloads running in the <code>bookinfo</code> namespace. We can get more fine-grained control over which workloads get the extension by using the <code>--labels</code> parameter:</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$  wasme deploy istio webassemblyhub.io/ceposta/demo-add-header:v0.2 \
  --id=myfilter  \
  --namespace=bookinfo  \
  --config &#39;tomorrow&#39; \
  --labels app=details
</code></pre><p>This is a much easier experience than manually creating <code>EnvoyF