How can I define a limit_req_zone?

[juanpabloaj]

I have this ingress file

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: my-ingress
  annotations:
    cert-manager.io/cluster-issuer: "letsencrypt-test"
    acme.cert-manager.io/http01-edit-in-place: "true"
    nginx.org/location-snippets: |
      limit_req zone=by_web;
spec:
  ingressClassName: nginx
  rules:
    - host: my.domain.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: my-service
                port:
                  number: 80
  tls:
    - hosts:
        - my.domain.com
      secretName: quickstart-example-tls

I was able to define a limit_req using nginx.org/location-snippets.

How can I define the limit_req_zone?

limit_req_zone $request_uri zone=by_web:10m rate=60r/m;

Regards.

[lucacome]

Hi @juanpabloaj

limit_req_zone is at the http level so you would need a ConfigMap with a http-snippets, you can find all the parameters and some examples here.

We also have a RateLimit policy (if you want to use VirtualServer resources instead of Ingress) that simplifies using all the parameters. You can find the docs here.

[juanpabloaj]

Thanks Luca,
based on your suggestion, we created the limit_req_zone adding these lines to the helm's installation

    controller.config.entries.http-snippets
    limit_req_zone $request_uri zone=by_web:10m rate=1r/s;

[jjngx]

Closing the issue as it's answered.