Error in ingress-nginx-controller pod after upgrading Sisense to L2024.1

[DmytroP]

Error in ingress-nginx-controller pod after upgrading Sisense to L2024.1:
main.go:64] port 80 is already in use. Please check the flag --http-port

!NOTE! - this guide is relevant for non-cloud managed Sisense deployments i.e. installed with Sisense Kubernetes (RKE).

After upgrading Sisense to version L2024.1 you might face the following error in ingress-nginx-controller pod’s logs (the default namespace):

main.go:64] port 80 is already in use. Please check the flag --http-port

Such an issue might be the result of incompatibility between the ingress-Nginx release version that was updated in Sisense L2024.1 and the Kubernetes version in case it is lower than v1.26.

In case Sisense L2024.1 was freshly installed on the non-cloud instance (i.e. with Sisense RKE) as a fresh deployment (and was not upgraded from the previous version) this issue should not reveal since L2024.1 package already comes with v1.26 Kubernetes by default.

However, if Sisense was upgraded to L2024.1 or it was deployed/installed on Kubernetes lower than v1.26 there will be an incompatibility between the ingress-Nginx release implemented in L2024.1 (4.10.0).

To resolve the issue it is necessary to re-run the Sisense upgrade with the following parameters in the configuration yaml file:

update: true
update_k8s_version: true

In case you are still facing the same issue after that, please open a ticket for Sisense Support.

This article provides a brief explanation regarding possible Nginx<->Kubernetes compatibility issues in Sisense L2024.1.

The article also provides the steps to resolve the issue described.

Disclaimer: This post outlines a potential custom workaround for a specific use case or provides instructions regarding a specific task. The solution may not work in all scenarios or Sisense versions, so we strongly recommend testing it in your environment before deployment. If you need further assistance with this please let us know.