I have a avi Kubernetes ingress and want to redirect / to /ui . Is it possible to do on Ingress routing rules.
poc.xxx.com/ --> How to redirect it to poc.xxx.com/ui
poc.xxx.com/ui --> ui-service
poc.xxx.com/backend --> backend-service
My ingress Yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: poc-ingress
spec:
rules:
- host: poc.xxx.com
http:
paths:
- path: /ui
pathType: Prefix
backend:
service:
name: ui-service
port:
number: 443
- path: /backend
pathType: Prefix
backend:
service:
name: backend-service
port:
number: 443
What if you do something like this, any request at / will get moved to ui service
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: poc-ingress
spec:
rules:
- host: poc.xxx.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: ui-service
port:
number: 443
- path: /backend
pathType: Prefix
backend:
service:
name: backend-service
port:
number: 443
However still if you are looking for a redirect solution you can follow below option
Add this annotation in ingress :
nginx.ingress.kubernetes.io/server-snippet: |
location ~ / {
rewrite / https://test.example.com/ui permanent;
}
if request comes at / it will get redirected to another domain or ui path as you wish.
You can also create the two ingress looks like this, first one check backend and / while another one handles ui :
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: poc-ingress
annotation:
nginx.ingress.kubernetes.io/server-snippet: |
location ~ / {
rewrite / https://test.example.com/ui permanent;
}
spec:
rules:
- host: poc.xxx.com
http:
paths:
- path: /backend
pathType: Prefix
backend:
service:
name: backend-service
port:
number: 443
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ui-ingress
spec:
rules:
- host: poc.xxx.com
http:
paths:
- path: /ui
pathType: Prefix
backend:
service:
name: ui-service
port:
number: 443
Do not forget to use the ingress class annotation in ingress.
Related
I want to organize my web apis iwth kubernetes ingress tool.
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: myapp-api-ingress
annotations:
kubernetes.io/ingress.class: nginx
# nginx.ingress.kubernetes.io/use-regex: "true"
# nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
rules:
- host: api.myapp.com
http:
paths:
- pathType: Prefix
path: /catalog
backend:
service:
name: myapp-catalog-service
port:
number: 80
- pathType: Prefix
path: /identity
backend:
service:
name: myapp-identity-service
port:
number: 80
With this configuration, I can access the "api.myapp.com/catalog".
But "api.myapp.com/catalog" is 404 not found. How can fix this configuration?
Seems to be an issue with rewrite annotation that might cause the 404 error. Can you give the below annotation in the yaml and give a try :
nginx.ingress.kubernetes.io/rewrite-target: /$2
As per this rewrite target example , These $2 placeholders can be used as parameters in the rewrite-target annotation. This Target URI where the traffic must be redirected.
As per Kubernetes ingress update your yaml as below example which can be accessed from foo.bar.com/foo from port 4200 and foo.bar.com/bar from port 8080.
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: simple-fanout-example
spec:
rules:
- host: foo.bar.com
http:
paths:
- path: /foo
pathType: Prefix
backend:
service:
name: service1
port:
number: 4200
- path: /bar
pathType: Prefix
backend:
service:
name: service2
port:
number: 8080
Refer to this ingress path matching doc and SO
i cannot get pth base nginx routing working. I got host based working. Here is the yaml config
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
name: ingress-resource-3
spec:
ingressClassName: nginx
rules:
- http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: nginx-deploy-main
port:
number: 80
- path: /blue
pathType: Prefix
backend:
service:
name: nginx-deploy-blue
port:
number: 80
- path: /green
pathType: Prefix
backend:
service:
name: nginx-deploy-green
port:
number: 80
however host routing works below
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-resource-2
spec:
ingressClassName: nginx
rules:
- host: testingress.cluster.local
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: nginx-deploy-main
port:
number: 80
- host: blue.testingress.cluster.local
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: nginx-deploy-blue
port:
number: 80
- host: green.testingress.cluster.local
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: nginx-deploy-green
port:
number: 80
any idea why path base routing is not working?
also I dont see my hostname when i try to get ingress
[rke#k8gui ingress-demo]$ kubectl get ingress
NAME CLASS HOSTS ADDRESS PORTS AGE
ingress-resource-3 nginx * 80 11m
My ingress file like this and I cannot get my resources when it comes up multiple paths
And my ingress file like this:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: test-ingress
annotations:
nginx.ingress.kubernetes.io/rewrite: /
spec:
ingressClassName: nginx
rules:
- host: foo.test.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: service1
port:
number: 80
- path: /service2
pathType: Prefix
backend:
service:
name: service2
port:
number: 80
Is there anybody can help me find solutions?
I have read in ingress-nginx documentation that the rewrite is being performed thanks to an annotation like this:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$2
name: rewrite
namespace: default
spec:
rules:
- host: rewrite.bar.com
http:
paths:
- backend:
serviceName: http-svc
servicePort: 80
path: /something(/|$)(.*)
I have a case where I have multiple hosts and I want URL rewriting for some particular paths only:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: nginx
cert-manager.io/cluster-issuer: letsencrypt
nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
name: ingress
spec:
rules:
- host: somehost.westeurope.cloudapp.azure.com
http:
paths:
- path: /rest-smtp-sink # I want to rewrite this path
pathType: Prefix
backend:
service:
name: rest-smtp-sink-svc
port:
number: 80
- path: /backend # This one too
pathType: Prefix
backend:
service:
name: server-svc
port:
number: 80
- path: / # But not this one
pathType: Prefix
backend:
service:
name: client-svc
port:
number: 80
However, the annotation seems to be global. How do I enable URL rewriting for some paths only?
I managed to get the desired result with this configuration:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: nginx
cert-manager.io/cluster-issuer: letsencrypt
nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
nginx.ingress.kubernetes.io/rewrite-target: /$2
name: ingress
spec:
rules:
- host: somehost.westeurope.cloudapp.azure.com
http:
paths:
- path: /rest-smtp-sink(/|$)(.*)
pathType: Prefix
backend:
service:
name: rest-smtp-sink-svc
port:
number: 80
- path: /backend(/|$)(.*)
pathType: Prefix
backend:
service:
name: server-svc
port:
number: 80
- path: /()(.*)
pathType: Prefix
backend:
service:
name: client-svc
port:
number: 80
As the nginx.ingress.kubernetes.io/rewrite-target annotation is global, I've used /$2 as the rewrite target and /()(.*) as a noop for the root path.
I've got a K8s ingress and one http and one https backend.
browser -> https -> ingress -> http -> sonarqube
browser -> https -> ingress -> https -> unifi controller
If I'm using this config:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/proxy-body-size: '0'
name: ingress-test
spec:
rules:
- host: sonar.app.singel.home
http:
paths:
- backend:
service:
name: sonar-service
port:
number: 9000
path: /
pathType: Prefix
- host: unifi.app.singel.home
http:
paths:
- backend:
service:
name: unifi-controller
port:
number: 8443
path: /
pathType: Prefix
Then the http backend will work (sonarQube), and the https backend will not.
Now if I add the annotation:
nginx.ingress.kubernetes.io/backend-protocol: HTTPS
Then the https backend will work (unifi controller), and the http backend will not.
I guess I want the annotation to only apply to one of the rules, but I'm not sure this is possible?
You can use the tls as said in k8s doc
For ex:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/proxy-body-size: '0'
name: ingress-test
spec:
tls:
- hosts:
- sonar.app.singel.home
secretName: test-tls
rules:
- host: sonar.app.singel.home
http:
paths:
- backend:
service:
name: sonar-service
port:
number: 9000
path: /
pathType: Prefix
My assumption was that you can have only one ingress config. But you can have multiple. So the solution is to create two configs and load these, each with their own annotation. Like so:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/backend-protocol: HTTPS
name: ingress-1
spec:
rules:
- host: unifi.app.singel.home
http:
paths:
- backend:
service:
name: unifi-controller
port:
number: 8443
path: /
pathType: Prefix
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/proxy-body-size: '0'
name: ingress-2
spec:
rules:
- host: sonar.app.singel.home
http:
paths:
- backend:
service:
name: sonar-service
port:
number: 9000
path: /
pathType: Prefix