io, run your Istio configurations with <code>kubectl apply --dry-run</code> so that you are able to know if the configurations can be accepted by the API server as well as any possible unknown and/or invalid fields to the API server. (<code>DryRun</code> feature is on by default for Kubernetes 1.13+ clusters.)</li><li>Use the <a href=/v1.20/docs/reference/config/>reference documentation</a> to confirm and correct the field names and data types.</li><li>In addition to structural validation, you can also use 