Networking

https://kubernetes.io/docs/concepts/cluster-administration/networking/

https://matthewpalmer.net/kubernetes-app-developer/articles/kubernetes-networking-guide-beginners.html

• container-to-container communications

• Pod-to-Pod communications

• Pod-to-Service communications

• External-to-Service communications

Kubernetes Networking Model

• All pods can communicate with each other on all Nodes

• Agents on a Node can communicate with all pods on that Node

• No Network Address Translation(NAT)

Kubernetes Network Topology

• Node Network

• Pod Network

• Cluster Network (used by Services)

Contents:

• Pod Networking
  • Basic
  • Container to Container in Pod
  • Pod to Pod (single node)
  • Pod to Pod (multi-Node)
  • References
• Cluster DNS
  • Cluster DNS configuration
  • Pod DNS settings
• Services
  • How Services Work
  • Lab
  • Service Types
• Service Discovery
  • DNS
  • ENV
• Ingress
  • What is Ingress?
  • Ingress Controller
  • Type of Ingress
• Resource
  • A Visual Guide to Kubernetes Networking Fundamentals