r8-helpers yaml-install '{}' \; # install all the manifests in the vendored directory directly, without changing then
      # use the metrics-server-deployment.yaml as the input to the jsonnet file
      - KR8_JSONNET_ARGS='--ext-str-file inputMetricsServerDeploy=vendored/metrics-server-deployment.yaml' kr8-helpers jsonnet-render metrics-server-deployment.jsonnet
</code></pre>

<h2 id="jsonnet">Jsonnet</h2>
<p>You'll notice in the taskfile above that this line:</p>
<pre><code>KR8_JSONNET_ARGS='--ext-str-fil