Kubernetes tutorial for beginners 3: Configuration, Container Patterns & Health

Peter Jausovec explains Kubernetes ConfigMaps, Secrets, container patterns like sidecars and ambassadors, and application health probes.

You got your applications running in Kubernetes, but how can you configure them? How can you store configuration and secrets inside Kubernetes? What is an init container, sidecar, ambassador patterns, or adapter pattern? Also, what are some of the different probes you can use to determine if your applications are healthy and ready to receive traffic? In this session, we'll look at Kubernetes ConfigMaps and Secrets. Then we'll explain a couple of container patterns (init container, sidecar pattern, adapter pattern, ambassador pattern) and how to use them in practice. Finally, we'll talk about application health probes. The Start Kubernetes Live sessions are created based on the startkubernetes.com course material. The series is aimed at beginners who are interested in getting up to speed with Kubernetes through practical examples. #kubernetes #configmap #initcontainers #k8s 👉🏼 Complete Start Kubernetes Course: startkubernetes.com ▬▬▬▬▬▬ ⏰ TIMESTAMPS ▬▬▬▬▬▬ 00:00 Introduction 01:16 The Twelve-Factor App 04:03 Configuration 05:49 ConfigMaps 07:41 How to use values from ConfigMaps? 08:42 Mounting ConfigMaps as Volumes 10:38 Creating ConfigMaps using kubectl 12:40 ConfigMaps DEMO 29:03 Secrets 31:25 Consuming secrets as environment variables 32:00 Consuming secrets from Volumes 32:50 Secrets DEMO 40:00 Container patterns Introduction 40:28 Init containers 46:05 Init containers DEMO 51:30 Sidecar pattern 55:37 Ambassador pattern 59:44 Adapter pattern 01:02:08 Sidecar container and ambassador pattern DEMO 01:12:57 Application health 01:29:10 Application health DEMO 01:35:06 Conclusion ▬▬▬▬▬▬ 👋🏼 Contact 👋🏼 ▬▬▬▬▬▬ ➡️ Twitter: twitter.com/pjausovec ➡️ LinkedIn: linkedin.com/in/pjausovec/ ➡️ Discord: discord.gg/rxaUSqMVZK