<p>A Kubernetes admission controller rejects requests that do not pass webhook checks, so it is technically a rate limiter itself.</p>
<p>When deploying to a high-traffic cluster, is there a way to rate limit the requests sent to the admission controller? For example, with rate limiting of 100 requests per second, the admission controller will auto-reject all further requests after the initial 100 requests.</p>

jtee
<p>You can try to leverage the <strong>EventRateLimit</strong> plugin for the admission controller where the controller tried to enforce a limit on the number of event requests that the API Server will accept in a given time slice.  Below are some reference docs.</p>
<p><a href="https://github.com/kubernetes/community/blob/master/contributors/design-proposals/api-machinery/admission_control_event_rate_limit.md" rel="nofollow noreferrer">https://github.com/kubernetes/community/blob/master/contributors/design-proposals/api-machinery/admission_control_event_rate_limit.md</a></p>
<p><a href="https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#eventratelimit" rel="nofollow noreferrer">https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#eventratelimit</a></p>
