I have an k8s Apache server which uses mod_jk to connect to different kubernetes services. mod_jk is sort of dummy here as workers are having k8s service URL. I am now trying to achieve sticky sessions based on JESSIONID in the cookie. I have traefik ingress controller which directs all requests to k8s Apache service. The requests is terminated at ingress level for TLS. What is the best way to achieve sticky session ?
I tried enabling sessionAffinity: ClientIP, but the client IP is always same. It is the ingress controller.
In the Kubernetes ingress object in the annotations label you have to define, which kind of Ingress will you use, so in your case: Traefik ingress controller. Please note, that the sticky session in Traefik is defined in the Service object with the annotation. Instead of a random cookie name, we define it as JSESSIONID.
Ingress object definition:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: traefik
labels:
app: session-affinity
name: session-affinity
spec:
tls:
- host: <address>
secretName:
rules:
- host: <address>
http:
paths:
- path: /
backend:
serviceName: session-affinity
servicePort: 8080Service object definition:
apiVersion: v1
kind: Service
metadata:
name: session-affinity
labels:
app: session-affinity
annotations:
traefik.ingress.kubernetes.io/affinity: "true"
traefik.ingress.kubernetes.io/session-cookie-name: "JSESSIONID"
spec:
type: NodePort
ports:
- port: 8080
targetPort: 8080You can find more information in documentation.