We are running rails application with unicorn and websocket. We are using AWS ELB as ingress SSL terminates on ELB and forwards traffic to application.
Nginx ingress routes traffic to web app running unicorn/puma on port 8080.
App works but our websocket responds with 200 instead of 101. We have enabled CORS and used required annotations in ingress.
This are annotations used for the ingress controller service
service.beta.kubernetes.io/aws-load-balancer-backend-protocol: http
service.beta.kubernetes.io/aws-load-balancer-proxy-protocol: '*'
service.beta.kubernetes.io/aws-load-balancer-ssl-cert::arn:aws:iam::xxx:server-certificate/staging
service.beta.kubernetes.io/aws-load-balancer-ssl-ports: https
When we use aws loadbalancer protocol as tcp and load balancer ports as 443 it fails on infinite redirect loop.
Following are the annotations used in the ingress:
nginx.ingress.kubernetes.io/service-upstream: true
nginx.ingress.kubernetes.io/cors-allow-methods: "PUT, GET, POST, OPTIONS"
nginx.ingress.kubernetes.io/cors-allow-headers: "DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type"
nginx.ingress.kubernetes.io/cors-allow-origin: "*"
nginx.ingress.kubernetes.io/cors-allow-credentials: "true"
ingress.kubernetes.io/force-ssl-redirect: "true"
Our sample nginx configuration we used earlier without ingress is here
How to get websockets working with nginx ingress controller with AWS ELB ?
