Isovalent library

In this video, learn about a new feature: Cilium Transparent Encryption with WireGuard can now encrypt traffic node-to-node!

In this blog post, learn what the Cilium Gateway API is and how the Gateway API project came to be and the issues it solves.

In this tutorial, you will learn how to install, configure and manage the Cilium Gateway API to route traffic into your Kubernetes cluster.

In this video, Senior Technical Marketing Engineer Nico Vibert walks you through how Cilium Gateway API can route HTTPS traffic into your cluster.

Learn how VSHN provides services for mission-critical applications reduced their support burden with Isovalent's Enterprise Edition of Cilium

In this video, learn with Raymond de Jong how Egress Gateway HA can provide enterprise users resilience for their egress gateway traffic.

With Cilium 1.13 comes a new exciting feature that enables faster performance and lower latency through the network stack: BIG TCP.

In this short video, Senior Technical Marketing Engineer Nico Vibert walks you through how to use Cilium Gateway API to modify HTTP headers.

Announcing Cilium 1.13 - Gateway API, mTLS datapath, Service Mesh, BIG TCP, SBOM, SNI NetworkPolicy - and many more features!

With Cilium 1.13, you can now leverage BIG TCP with IPv6 to improve performance through the Linux network stack.

Learn how simple IPv6 can be installed and operated with Cilium and Hubble. With Kubernetes’ IPv6 support improving in recent releases and Dual Stack Generally Available in Kubernetes 1.23, it’s time to learn about IPv6 on Kubernetes. You might be wondering “How on Earth am I going to be able to operate this?” Good news – you’re in the right place. This lab will walk you through how to deploy a IPv4/IPv6 Dual Stack Kubernetes cluster and install Cilium and Hubble to benefit from their networking and observability capabilities. In particular, visibility of IPv6 flows is absolutely essential. IPv6’s slow adoption is primarily caused by fears it would be hard to operate and manage. As you will see, a tool such as Hubble will help operators visualize and understand their IPv6 network better.

In this brief demo, we introduce a new Cilium 1.13 feature: support for Kubernetes Gateway API !

In this brief demo, we test a new tool called Ingress2Gateway that lets you convert Kubernetes Ingress resources to Gateway API resources.

Kubernetes does not natively support gRPC Load Balancing out of the box. Learn how to use Cilium’s embedded Envoy proxy to achieve load-balancing for L7 services, with a simple annotation.

In Cilium 1.13, you can now use Cilium’s embedded Envoy proxy to achieve load-balancing for L7 services, with a simple annotation.

Creating the right Network Policies can be difficult. In this lab, you will use Hubble metrics to build a Network Policy Verdict dashboard in Grafana showing which flows need to be allowed in your policy approach.

In Cilium 1.13, Ingress Resource can now share Kubernetes LoadBalancer Resources. Watch the mini demo to learn more!

Cilium 1.13 comes with a fully integrated with a HTTP traffic splitting engine!

In this mini-demo, you will learn about internalTrafficPolicy support on Cilium! This feature was added with Cilium 1.13.

In this mini-demo, you will get an insight into Load-Balancer IP Address Management support on Cilium! This feature was added with Cilium 1.13.

In this mini-demo, you will get an insight into SCTP support on Cilium! This feature was added with Cilium 1.13.

SCTP (Stream Control Transmission Protocol) is a transport-layer protocol used for communication between applications. It is similar to TCP, but it provides additional features such as multi-homing and message fragmentation. Applications that require reliable, ordered delivery of data, but also need the ability to handle multiple streams of data simultaneously can use SCTP. SCTP is primarily used by service providers and mobile operators. While SCTP support for Kubernetes Services, Endpoint and NetworkPolicy was introduced in Kubernetes 1.12, you still need a CNI to support it. Good news: basic support for SCTP was introduced in Cilium 1.13!

BGP support was initially introduced in Cilium 1.10 and subsequent improvements have been made since, such as the recent introduction of IPv6 support in Cilium 1.12. In Cilium 1.13, that support was enhanced with the introduction of Load Balancer IPAM and BGP Service address advertisements. In this lab, you will learn about both these new features and how they can simplify your network connectivity operations.

Ever wonder how to install a specific version of Cilium? Or whether to use Helm or the cilium-cli? Let's look at the many ways to install Cilium.

In this video, Senior Technical Marketing Engineer Nico Vibert walks through a new feature with Cilium 1.12 - the ability to specify service affinity for meshed cluster load balancing.

In this demo, Isovalent Staff Software Engineer Louis DeLosSantos walks through an introductory demo of SRv6 on Cilium, for a L3VPN use case. The demo was first shown live during eBPF Day North America 2022.

Workloads usually across multiple Kubernetes clusters - on premises and clouds. How do you bring them together? With Cluster Mesh! This video by our Raymond de Jong briefly explains the concept, the requirements, and walks through a demo of the capabilities.

Network Policies - the basics, the gotchas, how to create, how to apply them, and everything else that is to know about them! Duffie Cooley will guide you through eBPF powered Cilium network policies, how Hubble can help you with them, and why DNS and L7 transparency so incredible important.

Tune in to our experts Nikolay Aleksandrov (speaker) and Daniel Borkmann comparing BBR-based congestion control to Linux' default CUBIC for Pods. The BBR-based congestion control for Pods has been added in Cilium 1.12 as a new feature for Cilium's Bandwidth Manager and for the first time enables Pods to use BBR in practice. Using a real-world adaptive video streaming use case they will compare two different network conditions - high-speed long-haul links with large BDP and last mile networks at the edge of Internet - and discuss the results.

Of course we cannot talk about networks without DNS. In the end it is always DNS what causes trouble. This is especially true when the CNI is down, or being upgraded: customers will lose DNS resolution! But that means the apps can’t resolve URLs to send the traffic to the correct destination. Isovalent provides full high availability of the DNS resolution. This includes “traffic” being available all the time, even when the CNI is down. Ops teams don’t have to worry about downtimes anymore, because their DNS based security model still follows the deny-all security models and denies all traffic that is not explicitly allowed. In this demo you will see how HA DNS proxy takes care of that.

Integrating Kubernetes clusters in a legacy networking environment can be a challenge, especially when legacy firewalls are involved. Join us to learn how Cilium Enterprise allows you to define highly-available groups of egress nodes and IP addresses, making it possible to fit Kubernetes egress traffic pretty much to any security policy that may be in place in your infrastructure.

In this video, Nico Vibert introduces monitoring key metrics of Cilium and Hubble, by leveraging Prometheus and Grafana.

In this video, Senior Technical Marketing Engineer Nico Vibert will walk you through how to deploy a IPv4/IPv6 Dual Stack Kubernetes cluster and install Cilium and Hubble to benefit from their networking and observability capabilities.

In this short video, Senior Technical Marketing Engineer Nico Vibert deploys a AKS cluster without a CNI to ease the installation of Cilium.

In this video, Senior Technical Marketing Engineer Nico Vibert walks through two methods to encrypt data in transit between Kubernetes Pods: Cilium Transparent Encryption with IPsec or WireGuard.

In this video, Senior Technical Marketing Engineer Nico Vibert walks through BGP enhancements in Cilium 1.12, with the integration with GoBGP. This new version also introduces support for BGP over IPv6.

In this short video, Senior Technical Marketing Engineer Nico Vibert walks you through how to use Cilium Bandwidth Manager to rate-limit the traffic sent by your Kubernetes Pods. Great to address potential contention issues !

Service mesh is a concept describing the requirements of modern cloud native applications with regards to communication, visibility, and security. Current implementations of this concept involve running sidecar proxies in each workload or pod. This is a pretty inefficient way of solving these requirements. In this white paper we will look at an alternative to the sidecar model that provides a transparent service mesh with high efficiency at low complexity, with the help of eBPF.

Capital One needed to scale their PaaS to multiple teams - but required secure network isolation, visibility and minimal performance overhead. Isovalent Cilium Enterprise met all requirements and scaled past the iptables limits. Hubble’s additional observability capabilities helped their teams to do more from the start.

Isovalent helped PostFinance to build a scalable Kubernetes platform to run mission-critical banking software in production. By migrating to Cilium as the default CNI for kubernetes, they were able to solve their challenges regarding scale, observability and latency. The network was made visible, improving troubleshooting, enabling forensic analysis and transparently encrypt network traffic.

Enterprises adopting cloud native technologies quickly realize that legacy approaches are useless in efficiently rolling our business applications. Cilium enables Kubernetes architects to solve challenges as addressing security & compliance requirements, providing advanced connectivity and ensuring identity-aware observability for platform and application teams.

Ever since its inception, Cilium has supported Kubernetes Network Policies to enforce traffic control to and from pods at L3/L4. But Cilium Network Policies even go even further: by leveraging eBPF, it can provide greater visibility into packets and enforce traffic policies at L7 and can filter traffic based on criteria such as FQDN, protocol (such as kafka, grpc), etc… Creating and manipulating these Network Policies is done declaratively using YAML manifests. What if we could apply the Kubernetes Network Policy operating model to our hosts? Wouldn’t it be nice to have a consistent security model across not just our pods, but also the hosts running the pods? Let’s look at how the Cilium Host Firewall can achieve this. In this lab, we will install SSH on the nodes of a Kind cluster, then create Cluster-wide Network Policies to regulate how the nodes can be accessed using SSH. The Control Plane node will be used as a bastion to access the other nodes in the cluster.

In this short lab, you will learn about Gateway API, a new Kubernetes standard on how to route traffic into a Kubernetes cluster. The Gateway API is the next generation of the Ingress API. Gateway API addresses some the Ingress limitations by providing an extensible, role-based and generic model to configure advanced L7 traffic routing capabilities into a Kubernetes cluster. In this lab, you will learn how you can use the Cilium Gateway API functionality to route HTTP and HTTPS traffic into your Kubernetes-hosted application.

In this tutorial, you'll learn how easy it is to encrypt Kubernetes traffic using Cilium Transparent Encryption with IPsec and WireGuard.

eBPF is the new standard to program Linux kernel capabilities in a safe and efficient manner without requiring to change kernel source code or loading kernel modules. It has enabled a new generation of high performance tooling to be developed covering networking, security, and observability use cases. The best way to learn about eBPF is to read the book “What is eBPF” by Liz Rice. And the best way to have your first experience with eBPF programming is to walk through this lab, which takes the opensnoop example out of the book and teaches you to handle an eBPF tool, watch it loading its components and even add your own tracing into the source eBPF code.

You already know that Cilium accelerates networking, and provides security and observability in Kubernetes, using the power of eBPF. Now Cilium is bringing those eBPF strengths to the world of Service Mesh. Cilium Service Mesh features eBPF-powered connectivity, traffic management, security and observability. In this lab, you will learn how you can use Cilium to deploy Ingressresources to dynamically configure the Envoy proxy provided with the Cilium agent. And all of the above without any Envoy sidecar injection into your pods!

Cilium is an open source software for transparently securing the network connectivity between application services deployed using Linux container management platforms like Docker and Kubernetes. At the foundation of Cilium is a new Linux kernel technology called eBPF, which enables the dynamic insertion of powerful security visibility and control logic within Linux itself. Because eBPF runs inside the Linux kernel, Cilium security policies can be applied and updated without any changes to the application code or container configuration. In this track, we provide you a fully fledged Cilium installation on a small cluster, together with a few challenges to solve. See yourself how Cilium works, and how it can help you securing your moon-sized battlestation in a “Star Wars”-inspired challenge.

Security Observability is a new paradigm that utilizes eBPF, a Linux kernel technology, to allow Security and DevOps teams, SREs, Cloud Engineers, and Solution Architects to gain real-time visibility into Kubernetes and helps to secure your production environment with Cilium Tetragon. Cilium Tetragon is an open source Security Observability and Runtime Enforcement tool from the makers of Cilium. It captures different process and network event types through a user-supplied configuration to enable security observability on arbitrary hook points in the kernel; then translates these events into actionable signals for a Security Team. The best way to learn about Security Observability and Cilium Tetragon is to read the book “Security Observability with eBPF” by Jed Salazar and Natalia Reka Ivanko. And the best way to have your first experience with Cilium Tetragon is to walk through this lab, which takes the Real World Attack example out of the book and teaches you how to detect a container escape step by step!

In this scenario, we are going to show how Isovalent Cilium Enterprise can provide visibility into TLS traffic. In Security Audits, a company or team has to verify their application protects data in transit and doesn’t leak information during communication, especially when data leaves a sensitive internal network. Mechanisms like TLS ensure that data is encrypted in transit, but verifying that a TLS configuration is secure becomes a challenge for most companies. In this lab, you will learn how Isovalent Cilium Enterprise can 1) identify the version of TLS being used, informing us if an obsolete and insecure version is being used, 2) report on the cipher being used and 3) export events in JSON format to SIEM.

In this scenario, we are going to simulate the exploitation of a nodejs application, with the attacker spawning a reverse shell inside of a container and moving laterally within the Kubernetes environment.   We will demonstrate how the combined Process and Network Event Data: identify the suspicious Late Process Execution tie the suspicious processes to a randomly generated External Domain Name trace the Lateral Movement and Data Exfiltration of the attacker post-exploit

This lab provides an introduction to Isovalent Cilium Enterprise capabilities related to connectivity observability. This track primarily focuses on Hubble Flow events that provide label-aware, DNS-aware, and API-aware visibility for network connectivity within a Kubernetes environment.

Kubernetes changes the way we think about networking. In an ideal Kubernetes world, the network would be entirely flat and all routing and security between the applications would be controlled by the Pod network, using Network Policies. In many Enterprise environments, though, the applications hosted on Kubernetes need to communicate with workloads living outside the Kubernetes cluster, which are subject to connectivity constraints and security enforcement. Because of the nature of these networks, traditional firewalling usually relies on static IP addresses (or at least IP ranges). This can make it difficult to integrate a Kubernetes cluster, which has a varying —and at times dynamic— number of nodes into such a network. Cilium’s Egress Gateway feature changes this, by allowing you to specify which nodes should be used by a pod in order to reach the outside world.

Encryption is required for many compliance frameworks. Kubernetes doesn’t natively offer pod-to-pod encryption. To offer encryption capabilities, it’s often required to implement it directly into your applications or deploy a Service Mesh. Both options add complexity and operational headaches. Cilium actually provides two options to encrypt traffic between Cilium-managed endpoints: IPsec and WireGuard. In this lab, you will be installing and testing both features and will get to experience how easy it is to encrypt data in transit with Cilium.

With the rise of Kubernetes adoption, an increasing number of clusters is deployed for various needs, and it is becoming common for companies to have clusters running on multiple cloud providers, as well as on-premise. Kubernetes Federation has for a few years brought the promise of connecting these clusters into multi-zone layers, but latency issues are more often than not preventing such architectures. Cilium Cluster Mesh allows you to connect the networks of multiple clusters in such as way that pods in each cluster can discover and access services in all other clusters of the mesh, provided all the clusters run Cilium as their CNI. This allows to effectively join multiple clusters into a large unified network, regardless of the Kubernetes distribution each of them is running. In this lab, we will see how to set up Cilium Cluster Mesh, and the benefits from such an architecture.