Kubernetes Fundamentals, Part 3

Kubernetes Secrets provide a secure method for managing sensitive data such as passwords, API keys, and tokens within Kubernetes environments, preventing the need to store them in Pod definitions or container images. This blog post outlines various use cases for Kubernetes Secrets, including storing credentials for databases, API authentication, and encryption keys. It details three primary methods for creating secrets: via the command line, configuration files, and using Kustomize, each suitable for different scenarios. The post also explains how to access secrets either through volume mounts or environment variables within containers, and emphasizes best practices for managing these secrets, such as using version control and Role-Based Access Control (RBAC). While Kubernetes Secrets offer a straightforward and secure option for secret management, the text suggests that alternative tools like HashiCorp Vault or AWS Secrets Manager may provide more centralized control and automatic key rotation.