I have a backend using https. I want to separate load on that back-end based on URL/path.
I decided to use ingress to do this url/path based logic in order to move traffic to different back-ends ( same back-ends , just duplicated to different NodePorts )
my question is how I can configure the ingress to receive https requests and to forward those https requests to the https back-end?
thanks
edit: I added the yaml file:
spec:
rules:
- http:
paths:
- backend:
serviceName: service
servicePort: 9443
path: /carbon
- backend:
serviceName: service2
servicePort: 9443
path: /oauth
for some reason I can;t change the rule form http to https
If you want to use load balancing mechanisms in k8s you should use services instead and start multiple instances behind that service that way k8s will do the load balancing. If you want to use different versions of your backend (e.g. prod and test) your way of separating them is fine
if your service is only reachable via https you need to add the following annotation to your ingress yaml: (documentation)
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
To secure ingress itself take a look at this: https://kubernetes.io/docs/concepts/services-networking/ingress/#tls
But if you want that the backend services decrypt the TLS communication use the following annotation instead: (documentation)
nginx.ingress.kubernetes.io/ssl-passthrough: "true"
Edit:
The Ingress YAML should look like this if you want to reach the backend via TLS:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-name
namespace: namespace-name
annotations:
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
spec:
rules:
- http:
paths:
- backend:
serviceName: service
servicePort: 9443
path: /carbon
- backend:
serviceName: service2
servicePort: 9443
path: /oauth
The Ingress YAML should look like this if you want to reach the backend via TLS with TLS decryption in the ingress controller:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-name
namespace: namespace-name
annotations:
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
spec:
tls:
- hosts:
- app.myorg.com
secretName: tls-secret
rules:
- http:
paths:
- backend:
serviceName: service
servicePort: 9443
path: /carbon
- backend:
serviceName: service2
servicePort: 9443
path: /oauth
It's important to note that tls-secret is the name of a SecretConfig with a valid Certificate issued for the host (app.myorg.com)
The Ingress YAML should look like this if you want to reach the backend via TLS with TLS decryption in the backend:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-name
namespace: namespace-name
annotations:
nginx.ingress.kubernetes.io/ssl-passthrough: "true"
spec:
rules:
- http:
paths:
- backend:
serviceName: service
servicePort: 9443
path: /carbon
- backend:
serviceName: service2
servicePort: 9443
path: /oauth
I never tested the last version myself so i don't know if that actually works but I'd strongly advise reading this passage for that variant.