Hello, networking enthusiasts! Welcome to the first part of our indepth series on building a fully routed Kubernetes cluster using Calico CNI. In this video, we'll walk you through the process of setting up a robust Kubernetes cluster and peering it with an external router to expose Kubernetes workloads.

What You'll Learn:
How to set up a fully routed Kubernetes cluster
The fundamentals of Calico CNI and its benefits
How traffic flows within the cluster
Utilizing BGP for routing and ECMP for load distribution

Key Topics Covered:
Cluster Setup: Stepbystep guide to building your Kubernetes cluster.
External Routing: How to peer your cluster with an external router.
Traffic Flow: Understanding how traffic is routed within the cluster.

Stay Tuned for Part 2:
In part two, we'll introduce load balancing and configure external traffic policies in local mode, further optimizing our cluster for efficient traffic management.

#Kubernetes #CalicoCNI #Networking #BGP #ECMP #ClusterSetup #ExternalRouting #TechTutorial #Filip

00:00 Introduction
00:51 High level diagram
01:24 FLANNEL POD to POD on the same node
01:47 CALICO POD to POD on the same node
02:40 FLANNEL vs CALICO speed test on the same node
02:56 FLANNEL POD to POD on different nodes
03:44 CALICO POD to POD on different nodes
04:15 FLANNEL vs CALICO speed test on different nodes
04:36 Building K8s Cluster
05:57 INSTALLING CALICO CNI
08:51 Demo: POD to POD communication on the same node CNI
10:48 Demo: POD to POD communication on the different nodes
11:35 BGP node to node mesh
12:40 BGP external node BIRD setup
14:48 Calico BGP setup
16:53 Filtering pod subnet
18:40 ECMP