Higress Terminology

Ingress Annotation (Annotation)

The annotation (Annotation) field in the Ingress resource is a kv dictionary structure, which can implement various routing strategies in a declarative manner. As shown below, annotations are used to enable cross-domain access permission for the Ingress route:

  1. apiVersion: networking.k8s.io/v1
  2. kind: Ingress
  3. metadata:
  4.    name: ingress-example
  5.    annotations:
  6.      higress.io/enable-cors: “true”
  7. spec:
  8.    ingressClassName: nginx-example
  9.    rules:
  10.    - http:
  11.        paths:
  12.        - path: /test
  13.          pathType: Prefix
  14.          backend:
  15.            service:
  16.              name: test
  17.              port:
  18.                number: 80

For other annotation configuration methods supported by Higress, please refer to Ingress Annotation Configuration Instructions

Downstream

Downstream refers to the source where Higress receives the request, usually a client such as a browser

Upstream

Upstream refers to the target backend service that Higress forwards the request to