Kind: Ingress

v1.19 (Aug 2020, as of Jul 2024 has been superseded by kind: Gateway)

• https://kubernetes.io/docs/concepts/services-networking/ingress/
• https://kind.sigs.k8s.io/docs/user/ingress/
• https://docs.okd.io/latest/rest_api/network_apis/ingress-networking-k8s-io-v1.html
• helm install my-release ingress-nginx/ingress-nginx
• minikube addons enable ingress
• spec.rules.host
• rules: [ http: | hosts: ]

• acme.cert-manager.io/http01-edit-in-place: "true"

Official examples

 apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: minimal-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  ingressClassName: nginx-example
  rules:
  - http:
      paths:
      - path: /testpath
        pathType: Prefix
        backend:
          service:
            name: test
            port:
              number: 80

https://kind.sigs.k8s.io/docs/user/ingress/
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: example-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  rules:
  - http:
      paths:
      - pathType: Prefix
        path: /foo(/|$)(.*)
        backend:
          service:
            name: foo-service
            port:
              number: 8080
      - pathType: Prefix
        path: /bar(/|$)(.*)
        backend:
          service:
            name: bar-service
            port:
              number: 8080

TLS

 apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: tls-example-ingress
spec:
  tls:
  - hosts:
      - https-example.foo.com
    secretName: testsecret-tls
  rules:
  - host: https-example.foo.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: service1
            port:
              number: 80

Examples

with tls and issuer annotation for cert-manager

 apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: kuard
  annotations:
    cert-manager.io/issuer: "letsencrypt-staging"

spec:
  ingressClassName: nginx
  tls:
  - hosts:
    - example.example.com
    secretName: quickstart-example-tls
  rules:
  - host: example.example.com
    http:
      paths:
       - path: /
         pathType: Prefix
         backend:
           service:
             name: kuard
            port:
              number: 80

With tls

 apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
  name: example
  namespace: foo
spec:
  rules:
    - host: www.example.com
      http:
        paths:
          - backend:
              serviceName: exampleService
              servicePort: 80
            path: /
  # This section is only required if TLS is to be enabled for the Ingress
  tls:
      - hosts:
          - www.example.com
        secretName: example-tls

 .../...
 status:
   loadBalancer:
     ingress:
     - hostname: a324242432.elb.ap-southeast-1.amazonaws.com
 .../...

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: foobar
spec:
  rules:
  - host: foobar.example.com
    http:
      paths:
      - backend:
          serviceName: foo
          servicePort: 8080
        path: /

AKS

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: aks-helloworld
  namespace: hello-web-app-routing
spec:
  ingressClassName: webapprouting.kubernetes.azure.com
  rules:
  - host: <Hostname>
    http:
      paths:
      - backend:
          service:
           name: aks-helloworld
           port:
             number: 80
        path: /
        pathType: Prefix

Errors

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx
  name: example
  namespace: foo
spec:
  rules:
    - host: www.example.com
      http:
        paths:
          - backend:
              serviceName: exampleService
              servicePort: 80
            path: /

Error from server (BadRequest): error when creating "ingress.yaml": [[Ingress in version "v1" cannot be handled as a Ingress: strict decoding error: unknown field "spec.rules [0].http.paths[0].backend.serviceName", unknown field "spec.rules[0].http.paths[0].backend.servicePort"

The Ingress "youingress" is invalid: spec.rules[0].http.paths[0].backend: Required value: port name or number is required

Warning  AddedOrUpdatedWithWarning  3s    nginx-ingress-controller  Configuration for default/your-app was added or updated ; with warning(s): TLS secret your-app is invalid: secret doesn't exist or of an unsupported type

Errors

 error: error validating "ingress.yaml": error validating data: [ValidationError(Ingress.spec.rules[0].http.paths[0].backend): unknown field "serviceName" in io.k8s.api.networking.v1.IngressBackend, ValidationError(Ingress.spec.rules[0].http.paths[0].backend): unknown field "servicePort" in io.k8s.api.networking.v1.IngressBackend]; if you choose to ignore these errors, turn validation off with --validate=false
error: error parsing ingress.yaml: error converting YAML to JSON: yaml: line 16: mapping values are not allowed in this context
The Ingress "youingress" is invalid: spec.rules[0].http.paths[0].backend: Required value: port name or number is required
Warning  Rejected  31s   nginx-ingress-controller  spec.rules(0).host: Required value

Related terms

• Kubernetes: Ingress controllers
• kubectl get ingress, kubectl describe ingress
• kind: ConfigMap
• kind: IngressClass
• pathType: ImplementationSpecific
• field.cattle.io/publicEndpoints
• cattle.io/creator: norman
• .local
• Address:
• kubectl apply -f ingress.yaml
• Ingress-nginx-controller ConfigMap
• IngressSpec.spec.tls
• labels:
• kubectl expose deployment

See also

• kind: Ingress, nginx.ingress.kubernetes.io, networking.k8s.io/[v1Beta,v1 ], extensions/v1beta1, ingress.spec.rules, kubectl apply -f ingress.yaml, spec.tls, ingressClassName
• networking.k8s.io: ingresses.networking.k8s.io, networkpolicy.networking.k8s.io
• kubectl create ingress | kubectl get ingress, kubectl describe ingress, Kong, Kubernetes Gateway API, kubectl apply -f ingress.yaml
• Ingress controllers, NGINX Ingress Controller, minikube addons enable ingress, kubectl get ingress, kubectl get ingressclass, kubectl describe ingress, Ingress:, Ingress API, AWS Load Balancer Controller, Envoy Proxy, GKE Ingress, Kubernetes Gateway API, ingress.k8s.aws, ingresses.networking.k8s.io, kind: Ingress: ( tls:, hosts: ), SuccessfullyReconciled