Kubeval

Kubeval is used to validate one or more Kubernetes configuration files and is often used locally as part of a development workflow as well as in CI pipelines. The Kubernetes API allows for specifying properties on objects that are not part of the schemas. However, kubectl will throw an error if you use it with such files. Kubeval can be used to simulate this behavior using the --strict flag. Alternatively, Kubeval can also take input via stdin which can make using it as part of an automated pipeline easier by removing the need to securely manage temporary files.