Report this

What is the reason for this report?

I keep getting 400 Bad Request from Kubernetes with ingress-nginx helm chart

Posted on October 6, 2020

I’m running through the community example How To Set Up an Nginx Ingress on DigitalOcean Kubernetes Using Helm.

I’m using Kubernetes maintained chart rather than stable, since that seems like the most “official” chart, using this values.yaml:

controller:
  publishService:
    enabled: true
  service:
    annotations:
      service.beta.kubernetes.io/do-loadbalancer-enable-proxy-protocol: 'true'

defaultBackend:
  enable: true

I can see the load balancer in the DO control panels, and I’ve set up what I think are the correct DNS records:

A hw1.recfab.net <load balancer IP> 3600 TTL
A hw2.recfab.net <load balancer IP> 3600 TTL

I keep getting the default NGINX 400 Bad Request page when I hit hw1.recfab.net, or hw2.recfab.net`. I’ve checked the controller logs, and the service pod logs. I’m pretty sure the requests aren’t reaching the pods, but not sure why.

I’ve tried the Troubleshooting guide, and poked around with kubectl as well as the ingress-nginx kubectl plugin.

I have not been able to figure this out and I don’t know what else to try. I’m sure it’s something simple, but crucial, so hopefully someone here has a solution.

Thanks.



This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Hi there,

Can you ensure you have your ingress controller configured to respect the proxy protocol settings in the LB?

Looks like you need to add the proxy protocol directive to your configmap: https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/#use-proxy-protocol

Hope this helps!

John

The developer cloud

Scale up as you grow — whether you're running one virtual machine or ten thousand.

Get started for free

Sign up and get $200 in credit for your first 60 days with DigitalOcean.*

*This promotional offer applies to new accounts only.