RisingWave Community - What is the purpose of a Kubernetes webhook and how can it impact deployments?

Kubernetes webhooks are used for setting default values and validating resources before they are stored into the Kubernetes API service.
Webhooks are considered a part of the Kubernetes control plane and are crucial for ensuring the stability of deployments.
If the operator isn't available, webhooks can potentially block deployments.
Customizing the operator's deployment can be done using a Helm chart.
Webhooks can be used to validate specific fields in Kubernetes resources.