I am trying to redirect a non www request to www. I checked the annotations here https://kubernetes-sigs.github.io/aws-alb-ingress-controller/guide/ingress/annotation/ but could not find specific to non www to www redirect.
I already have a http to https redirect set and it's working.
below is my ingress resource manifest file.
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: eks-learning-ingress
namespace: production
annotations:
kubernetes.io/ingress.class: alb
alb.ingress.kubernetes.io/scheme: internet-facing
alb.ingress.kubernetes.io/certificate-arn: ard878ef678df
alb.ingress.kubernetes.io/listen-ports: '[{"HTTP": 80}, {"HTTPS":443}]'
alb.ingress.kubernetes.io/actions.ssl-redirect: '{"Type": "redirect", "RedirectConfig": { "Protocol": "HTTPS", "Port": "443", "StatusCode": "HTTP_301"}}'
labels:
app: eks-learning-ingress
spec:
rules:
- host: www.myhost.in
http:
paths:
- path: /*
backend:
serviceName: ssl-redirect
servicePort: use-annotation
- path: /*
backend:
serviceName: eks-learning-service
servicePort: 80
Any help in this would be great. Thanks.
There are 2 ways of doing non-www to www redirections, 1. using alb.ingress.kubernetes.io/actions, 2. alb.ingress.kubernetes.io/conditions.
alb.ingress.kubernetes.io/actions.${action-name} Provides a method for configuring custom actions on a listener, such as for Redirect Actions.
The action-name in the annotation must match the serviceName in the ingress rules, and servicePort must be use-annotation.
We need to have one more annotation, which tells ALB how to configure redirection:
alb.ingress.kubernetes.io/actions.redirect-to-www: >
{"Type":"redirect","RedirectConfig":{"Host":"www.myhost.in","Port":"443","Protocol":"HTTPS","StatusCode":"HTTP_302"}}
And one more host rule to catch your request domain myhost.in and redirect to www.myhost.in
- host: myhost.in
http:
paths:
- path: /*
backend:
serviceName: redirect-to-www
servicePort: use-annotation
alb.ingress.kubernetes.io/conditions.${conditions-name} Provides a method for specifying routing conditions in addition to original host/path condition on Ingress spec.
The conditions-name in the annotation must match the serviceName in the ingress rules. It can be a either real serviceName or an annotation based action name when servicePort is "use-annotation".
In addition to the annotation we have added above, we continue to add conditions to annotations to filter the request but no need to have the host rule above.
alb.ingress.kubernetes.io/actions.redirect-to-www: >
{"Type":"redirect","RedirectConfig":{"Host":"www.myhost.in","Port":"443","Protocol":"HTTPS","StatusCode":"HTTP_302"}}
alb.ingress.kubernetes.io/conditions.redirect-to-www: >
[{"Field":"host-header","HostHeaderConfig":{"Values":["myhost.in"]}}]
We modify the existing host rule you currently have to achieve the redirection.
- host: www.myhost.in
http:
paths:
- path: /*
backend:
serviceName: redirect-to-www
servicePort: use-annotation
- path: /*
backend:
serviceName: ssl-redirect
servicePort: use-annotation
- path: /*
backend:
serviceName: eks-learning-service
servicePort: 80