hubble VS falco

Since we installed Hubble on the cluster, Let’s check its cool UI and see how the traffic flows between the pods. To do so, let’s run:

This doesn’t just provide improved operational visibility - it’s incredibly beneficial to network security engineers. For instance, if Cilium is unable to communicate with core components such as ‘Hubble,’ this will show-up in the connectivity test.

It may be we could further optimize in some way, but in our testing we didn't find the streaming or EBPF based tables to work all that well for our purposes in osquery. This tool seems more promising for logging this sort of activity: https://github.com/cilium/hubble. We're focused on K8s visibility but this could replace all of our Linux Auditing level logging if it works well.

Cilium team also offers Hubble (yes, the name is the same as the famous far space crawling telescope's one, but for clouds), which is a fully distributed networking and security observability platform for cloud native workloads. Hubble is open source software and built on top of Cilium and eBPF to enable deep visibility into the communication and behavior of services as well as the networking infrastructure in a completely transparent manner.

However, if you look at projects like Cilium Hubble and Istio Galley, you can see that you not only get all the instrumentation to manage this stuff out of the box, but you also get observability into the health of your pods and fine-grained visibility that you won’t get with traditional tools.

CNI plugins like Cilium

https://github.com/falcosecurity/falco

Like snort, but looks at system calls.

From one noob to another - I had a lot of fun setting up Falco (https://falco.org) and creating custom policies & alerts.

Falco is a well-known open source security solution originally created by Sysdig. It’s a CNCF incubating project and one of the few (as far as I can tell) options on this list that uses eBPF to scan for vulnerabilities.

Use some kind of SIEM or Falco to alert you to threats (you can't stop them, but a human can always intervene)

Falco, is a security project that can help you detect threats from within your cluster.

https://falco.org/ is a security-focused monitoring and alerting with an eBPF option

On the cgo side I want to highlight two talks: one from Loris Cro about dealing with cross-complition difficulties, that the usage of cgo brings, using the Zig language and the other from Jason Dellaluce and Leonardo Grasso about how to extend Falco, a Kubernetes threat detection engine, which is written in C++, with plugins written in Go, explaining the challenges of integrating cgo in both C and Go.