I am experiencing problems with my Kubernetes Load Balancer

If you are experiencing errors with your Kubernetes Kapsule Load Balancer, this page may help you find solutions to some of the most common problems.

I’m experiencing connectivity issues with my Kubernetes Load BalancerLink to this anchor

You may find that your Load Balancer is not connecting to nodes in your Kapsule cluster, meaning that health checks are failing and your application is inaccessible from the internet

CauseLink to this anchor

A configuration issue is preventing successful communication between your Load Balancer and the cluster’s nodes.

SolutionsLink to this anchor

• Ensure that you provisioned and configured your Load Balancer via Kubernetes and not via the Scaleway console, which provokes unexpected behaviors and errors.
• Verify that the required service is running on all nodes. If it is missing from some nodes, this could be causing health checks to fail.
• Check your cluster’s externalTrafficPolicy setting. If it is set to Local instead of Cluster, this could be causing the issue. Change the policy to Cluster.
• Try enabling or disabling Cloudflare’s Proxy Mode, which may be affecting connectivity.

My certificate is not being resolved when accessing my Kubernetes Load Balancer from within the clusterLink to this anchor

You may be able to reach applications from outside your cluster, but when trying to reach your Load Balancer from inside your Kapsule cluster, experience the following error message:

routines:ss3_get_record:wrong version number:../ssl/record/ssl3_record.c:331

CauseLink to this anchor

The Load Balancer is not properly configured to handle requests from within the cluster. Specifically, it is not using the hostname to route requests.

Solution:Link to this anchor

Add an annotation to the Load Balancer configuration, to use the hostname to route requests:

service.beta.kubernetes.io/scw-loadbalancer-use-hostname: "true" 

By adding this annotation, the Load Balancer will use the hostname to route requests from within the cluster.

I am experiencing a different problemLink to this anchor

• Check the Load Balancer troubleshooting in the Kubernetes Kapsule documentation
• Read the full documentation on creating and configuring Kubernetes Load Balancers