Lesson 5: Services

3 min

Understand the problem Services solve
Create different types of Services
Expose an application to the outside world
Make applications talk to each other

5.1 The problem

Pods have IPs... that change!

Each Pod has an IP address. But:

That IP is internal to the cluster
It changes if the Pod is recreated
It is different for each replica

How do you reach an application if the IP keeps changing?

The solution: Services

A Service provides:

A stable IP that never changes
A DNS name for easy access
Load balancing between the pods

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This lesson is part of the “Module 5: Kubernetes - Basic Deployment” module

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