Networking and Kubernetes / Vallery Lancey.

Format:

Book

Contributor:

Strong, James (Cloud native director)

Lancey, Vallery.

Language:

English

Subjects (All):

Computer network architectures.

Computer networks.

Kubernetes.

Physical Description:

1 online resource (341 pages)

Place of Publication:

Sebastopol, Calif. : O'Reilly Media, Incorporated, 2021.

Summary:

Kubernetes has become an essential part of the daily work for most system, network, and cluster administrators today. But to work effectively together on a production-scale Kubernetes system, they must be able to speak the same language. This book provides a clear guide to the layers of complexity and abstraction that come with running a Kubernetes network. Authors James Strong and Vallery Lancey bring you up to speed on the intricacies that Kubernetes has to offer for large container deployments. If you're to be effective in troubleshooting and maintaining a production cluster, you need to be well versed in the abstraction provided at each layer. This practical book shows you how. Learn the Kubernetes networking model Choose the best interface for your clusters from the CNCF Container Network Interface project Explore the networking and Linux primitives that power Kubernetes Quickly troubleshoot networking issues and prevent downtime Examine cloud networking and Kubernetes using the three major providers: Amazon Web Services, Google Cloud, and Microsoft Azure Learn the pros and cons of various network tools--and how to select the best ones for your stack

Contents:

Intro

Copyright

Table of Contents

Preface

Just Another Packet

Who This Book Is For

What You Will Learn

Conventions Used in This Book

Using Code Examples

O'Reilly Online Learning

How to Contact Us

Acknowledgments

Chapter 1. Networking Introduction

Networking History

OSI Model

TCP/IP

Application

Transport

Network

Internet Protocol

Link Layer

Revisiting Our Web Server

Conclusion

Chapter 2. Linux Networking

Basics

The Network Interface

The Bridge Interface

Packet Handling in the Kernel

Netfilter

Conntrack

Routing

High-Level Routing

iptables

IPVS

eBPF

Network Troubleshooting Tools

Security Warning

ping

traceroute

dig

telnet

nmap

netstat

netcat

Openssl

cURL

Chapter 3. Container Networking Basics

Introduction to Containers

Applications

Hypervisor

Containers

Container Primitives

Control Groups

Namespaces

Setting Up Namespaces

Container Network Basics

Docker Networking Model

Overlay Networking

Container Network Interface

Container Connectivity

Container to Container

Container to Container Separate Hosts

Chapter 4. Kubernetes Networking Introduction

The Kubernetes Networking Model

Node and Pod Network Layout

Isolated Networks

Flat Networks

Island Networks

kube-controller-manager Configuration

The Kubelet

Pod Readiness and Probes

The CNI Specification

CNI Plugins

The IPAM Interface

Popular CNI Plugins

kube-proxy

userspace Mode

iptables Mode

ipvs Mode

kernelspace Mode

NetworkPolicy

NetworkPolicy Example with Cilium

Selecting Pods

Rules

DNS

IPv4/IPv6 Dual Stack

Chapter 5. Kubernetes Networking Abstractions

StatefulSets

Endpoints

Endpoint Slices.

Kubernetes Services

NodePort

ClusterIP

Headless

ExternalName Service

LoadBalancer

Services Conclusion

Ingress

Ingress Controllers and Rules

Service Meshes

Chapter 6. Kubernetes and Cloud Networking

Amazon Web Services

AWS Network Services

Amazon Elastic Kubernetes Service

Deploying an Application on an AWS EKS Cluster

Google Compute Cloud (GCP)

GCP Network Services

GKE

Azure

Azure Networking Services

Azure Kubernetes Service

Deploying an Application to Azure Kubernetes Service

Index

About the Authors

Colophon.

Notes:

Description based on publisher supplied metadata and other sources.

ISBN:

1-4920-8160-4

1-4920-8162-0

1-4920-8164-7

OCLC:

1262673837