Description: A validation webhook is a mechanism that allows validating requests to the Kubernetes API server, ensuring that operations performed in the cluster comply with certain rules or policies defined by the user. This system is based on an event-driven architecture, where the API server can send notifications to a specific endpoint whenever an action requiring validation is performed. Validation webhooks are particularly useful in environments where strict control over configurations and resources is required, allowing administrators to effectively implement security and compliance policies. Upon receiving a request, the webhook can evaluate the information and return a response indicating whether the operation is allowed or not, helping to prevent incorrect or insecure configurations. This approach not only enhances the security of the cluster but also facilitates the automation of processes, as validations can be performed programmatically and in real-time. In summary, validation webhooks are a powerful tool in container orchestration that allows administrators to manage and control system behavior more effectively.
