Kubernetes: Preparing for the CKA and CKAD Certifications

© The Author(s), under exclusive license to APress Media, LLC , part of Springer Nature 2021

P. MartinKuberneteshttps://doi.org/10.1007/978-1-4842-6494-2_10

10. Discovery and Load Balancing

Philippe Martin¹  

(1)

Gif-sur-Yvette, France

 

When you deploy a Pod, it is not easily accessible. If you define a Pod with several containers, these containers will be available to communicate via the localhost interface, but containers of a Pod won’t be able to communicate with containers of another Pod without knowing the IP address of the other Pod.

But the Pod is volatile. We have seen that a Pod by itself is not usable because it can be evicted from a node at any time and won’t be recreated automatically. Controllers like ReplicaSet are necessary to guarantee ...