Cilium Kubernetes CNI Provider, Part 1: Overview of eBPF and Cilium and the Installation Process

In this multi-part series, we will take a look at Cilium. In part 1, we will learn what Cilium is and how it leverages a key technology called “eBPF” to provide load balancing, observability, and security. We will also take a look at what eBPF is and conceptually walk through how a simple eBPF program can be organized and loaded into Kernel. We will wrap this episode up by going through a complete walk-through on how to install Cilium and its components on a brand new Kubernetes cluster.

Links:

My Other Videos:
► Cilium Kubernetes CNI Provider: Part 4, IP Routing Modes (Direct and Encapsulated)
► Cilium Kubernetes CNI Provider, Part 3: Cluster Mesh
►Cilium Kubernetes CNI Provider, Part 2: Security Policies and Observability Leveraging Hubble
► What is VXLAN and How It is Used as an Overlay Network in Kubernetes?
► Managing Linux Log-ins, Users, and Machines in Active Directory (AD): Part 2- Join Linux Machines to AD:
► Managing Linux Log-ins, Users, and Machines in Active Directory (AD): Part 1- Setup AD:
► Sharing Resources between Windows and Linux:
► Kubernetes kube-proxy Modes: iptables and ipvs, Deep Dive:
►Kubernetes: Configuration as Data: Environment Variables, ConfigMaps, and Secrets:
►Configuring and Managing Storage in Kubernetes:
► Istio Service Mesh – Securing Kubernetes Workloads:

► Istio Service Mesh – Intro
► Understanding Kubernetes Networking. Part 6: Calico Network Policies:
► Understanding Kubernetes Networking. Part 5: Intro to Kubernetes Network Policies:
► Understanding Kubernetes Networking. Part 4: Kubernetes Services:

► Understanding Kubernetes Networking Part 3: Calico Kubernetes CNI Provider in depth:

► Setup a Linux-Windows (Calico based) Hybrid Kubernetes Cluster to Host .NET Containers:

► A Docker and Kubernetes tutorial for beginners:
A Docker and Kubernetes tutorial for beginners. - YouTube

► Setup a "Docker-less" Multi-node Kubernetes Cluster on Ubuntu Server:

► Detailed Windows Terminal, (WSL 2), Linux, Docker, and Kubernetes Install Guide on Windows 10:

[cyberslot]

Exceptional work!
Cilium is a great product which is evolving on regular basis. I can only admire your effort to dive deeper in its capabilities.
IMHO all your K8s related content covers highest possible quality level regarding the elements of presentation, analysis, context relations and consistency.
Please, keep going! It's highly appreciated!
Thank you very much!

[jonassteinberg]

Excellent video. Love the network/kernel-level approach. The CNCF should sponsor you, to be honest 🎉

[yetanother]

Was waiting for your video ...Amazing as usual

[spiraldynamics]

Great job thank you very much!
One of the best content i have seen on cillium and kubernetes networking . Very helpful 👌

[eddie]

What a wonderful video! Thank you so much! K8s network is super complicated. This video is super helpful for my k8s journey😃😃😃😃😃

[anoys]

I'm looking forward to the next episode！

[rezakaramad]

very fruitful, well-organized contents, well done!

[kevinyu]

Thanks for making it. It is so helpful regarding installation and concept deep dive!!

[billyjamesdowning]

Awesome content. Really appreciate you making stuff like this.

[moudjermohamed]

great video !! can you please make a video about multus and SRIOV plugin

[jemaltahir]

Great job as usual. can you do one in NSM(Network service mesh) ?

[skunkworksinc.]

Hi, thanks for another great K8S Networking video..

I had a few questions if I may.

1. At 20min20sec you have the endpoints shown in the etcd, are those IP addresses supposed to be the node addresses i.e. where the PODs are spun up ? I was expecting them to match the eth0 of the Nodes ?

2. Is it possible to have some containers mapped to a specific VLAN and use IPTables whilst other Containers and VLANs use EBPF? or is the CNI using one or the other..?

3. Is it possible you could cover using Multus and Cillium on the same node with EBPF ?

Thanks

[echo_helloworld]

Hi, Did you perform pod to pod encryption using cilium ?

[nguyennam]

Hi sir, is there any chane that you can share the slides which you used for cilium? Cuz i'm currently studing cilium + and your slide helps to sum up alot. Thanks

[maciejkwiek]

Hi! Quick question about rebooting nodes after Cilium is installed - have you gathered any logs or seen anything else that might have indicated what was the exact issue?

[elabeddhahbi]

Hi do you have any good reference for HA cluster

[nghiado]

Hi, I'm working on Network Policy in Cilium (like Ingress/Egress) but when my network policy change, I have to edit my network policy file again. Any solution for automate this step? For instance, I want to update network policy to block an IP.

[Silavoni]

Hi. Is it possible to replace iptables on bare-metal server to cilium firewall? How you think?