Configuration

[!NOTE] This module explores the core principles of configuring applications in Kubernetes. From injecting non-sensitive configuration via ConfigMaps to understanding how the Linux kernel enforces resource boundaries via cgroups, this module builds world-class, production-ready expertise.

1. Module Overview

  1. ConfigMaps - Decouple configuration from code. Learn how to inject environment variables and config files into your Pods.
  2. Secrets Management - Handle sensitive data securely. Understand why Base64 isn’t encryption and how to use Secrets safely in production.
  3. Downward API - Expose Pod and Container fields to your applications without coupling them to Kubernetes. Master the Downward API.
  4. Environment Variables - Inject configuration and secrets into your Pods via environment variables. Learn about env and envFrom.
  5. Resource Quotas - Master Kubernetes Resource Quotas, Requests, and Limits. Understand CPU throttling and OOMKilled events.
  6. Module Review - Review your knowledge of Kubernetes Configuration with flashcards and a cheat sheet.

Module Chapters