#10 Today I learned why we need a Service to expose our app in Kubernetes.

Description

Pods have IP addresses, so why can't we just connect to them directly? In this video, I explain the crucial role of the Kubernetes Service, which acts as a stable endpoint and a smart load balancer for our applications. Using a detailed architecture diagram, I'll walk you through the entire request lifecycle to show you why Services are essential. Join me as I learn and explain: 🔍 The core problem: Pods are ephemeral, meaning their IP addresses can change at any time, making them unreliable for direct access. 🎯 The solution: A Service provides a single, stable IP address and DNS name to connect to. 🔄 The two layers of load balancing: 1. The **Cloud Load Balancer** (External) takes user traffic and routes it to a random Node in the cluster. 2. The **Service Object** (Internal) then takes that traffic from the Node and routes it to a random Pod, which could even be on a different Node! This video explains the "why" behind the `kubectl expose` command we used back in video #5 and demystifies how users from outside the cluster can reliably access your application. Key Concepts Covered: - Kubernetes Service - Load Balancing (Internal vs. External) - Cloud Load Balancers - Service Discovery - Ephemeral Pods vs. Stable Endpoints - NodePort & Service Port #Kubernetes #DevOps #K8s #Networking #LoadBalancing #ServiceDiscovery #Tutorial #CloudNative #LearnToCode