Aws-load-balancer-controller: Support GRPCs protocol

[hieu29791]

Hi, I set up the blockchain system, using hyperledger. I want to public some services with GRPCs protocol to others service connect through aws-alb-ingress-controller, but as I know, alb only public with HTTP/HTTPS protocol, so our services from outside cannot connect with ALB.
Below is our ingress.yaml file:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: "admin-ingress"
  namespace: "orderer"
  annotations:
    kubernetes.io/ingress.class: alb
    alb.ingress.kubernetes.io/scheme: internet-facing
  labels:
    app: akcadmin-ingress
spec:
  rules:
    - http:
        paths:
          - path: /*
            backend:
              serviceName: "admin"
              servicePort: 4001

Could you help me to figure it out? Many thanks!

[hieu29791]

Up! Any idea??

[backjo]

You're probably going to want to use NLBs for pure GRPC - ALBs terminate the HTTP/2 connection and send downstream HTTP1/1 connections to servers. If an ALB is a must, you could try using GRPC Web like outlined here -> https://blog.argoproj.io/how-to-eat-the-grpc-cake-and-have-it-too-77bc4ed555f6

[M00nF1sh]

Hi,
There is current no native GRPC support from alb.
It's on roadmap is ALB team is activaly working on it currently.

[osterman]

Perhaps this should now be reopened?

• https://aws.amazon.com/about-aws/whats-new/2020/10/application-load-balancers-enable-grpc-workloads-end-to-end-http-2-support/
• https://aws.amazon.com/blogs/aws/new-application-load-balancer-support-for-end-to-end-http-2-and-grpc/