k8s ingress CORS的解决方法

ingress --traefik

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: test-ingress
  namespace: test
  labels:
    app: test-cors-app
  annotations:
    kubernetes.io/ingress.class: traefik
    traefik.ingress.kubernetes.io/custom-response-headers: "Access-Control-Allow-Origin:*||Access-Control-Allow-Methods:GET,POST,OPTIONS||Access-Control-Allow-Headers:DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range||Access-Control-Expose-Headers:Content-Length,Content-Range"
spec:
  rules:
  - host: company.host
    http:
      paths:
      - path: /
        backend:
          serviceName: test-service
          servicePort: 80

ingress --nginx

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/cors-allow-headers: >-
      DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization
    nginx.ingress.kubernetes.io/cors-allow-methods: 'PUT, GET, POST, OPTIONS'
    nginx.ingress.kubernetes.io/cors-allow-origin: '*'
    nginx.ingress.kubernetes.io/enable-cors: 'true'
    nginx.ingress.kubernetes.io/service-weight: ''
  creationTimestamp: '2019-06-27T12:36:08Z'
  generation: 1
  name: hs-http
  namespace: default
  resourceVersion: '81912785'
  selfLink: /apis/extensions/v1beta1/namespaces/default/ingresses/hs-http
  uid: 2343101d-98d8-11e9-8792-7a7bebcd6704
spec:
  rules:
    - host: hs.k8s.test.com
      http:
        paths:
          - backend:
              serviceName: custom-hs
              servicePort: 80
            path: /
  tls:
    - hosts:
        - hs.k8s.test.com
      secretName: hs-secret0