Workload Identity Part 2: How Cilium Implements Its Mutual Auth Leveraging SPIFFE and SPIRE

The classic mTLS implementation using sidecars is resource-intensive, slow, and poorly suited to microservices. The Cilium’s approach is to do away with sidecars and instead leverage eBPF which provides native performance. It has also split mTLS’s traditional mutual authentication and encryption into separate features that users can opt-in individually based on their requirements. To manage workload identity and their short-lived certificates, Cilium has embraced SPIFFE and SPIRE. In this episode, we will take a deep dive look at how Cilium has achieved this integration and how their lightweight pod mutual authentication works.

Video script files:
https://github.com/gary-RR/myYouTube_...

Timecodes
0:00 - Intro.
1:51 - Overview of classic mTLS.
10:34 - Cilium's vision for mTLS and channel encryption.
15:46 - SPIFFE Overview.
20:14 - SPIRE architecture.
22:39 - Kubernetes/Cilium/SPIRE Integration to implement Cilium's Mutual Auth.
39:57 - Demos.

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