Resolving “Secret Not Found” Errors for Kepler Certificates in Kubernetes

Introduction

When deploying applications and operators in Kubernetes that rely on webhooks or other secure communications, managing TLS certificates through Kubernetes secrets is critical. A common issue encountered during these deployments is the “Secret Not Found” error, which indicates that the expected TLS certificates are missing from the cluster’s secret storage. This article provides a detailed walkthrough to troubleshoot and resolve the issue where the Kubernetes secret kepler-certs is not found.

Error Overview

The error message:

Error from server (NotFound): secrets "kepler-certs" not found

suggests that the Kubernetes secret supposed to store the TLS certificates for the Kepler Operator is either not created or incorrectly named, leading to failures in initializing secure components like webhooks.

Step-by-Step Troubleshooting

Step 1: Confirm Secret Requirement

Verify the requirement for the kepler-certs secret from the deployment documentation or configuration files of the Kepler Operator. It's crucial to understand whether this secret should have been created manually or by…