Containers and Network Security
eBPF networking for Kubernetes. Cilium for control, Hubble for visibility, Tetragon for what happens at runtime.
Why container security is different
Kubernetes gives you flexibility, and that same flexibility is what makes container environments hard to secure. A weak network layer turns one compromised pod into a much bigger problem.
Traditional CNIs force a choice between granular control and real-time visibility. In a regulated sector you need both, which is why we moved to the eBPF stack.
Networking and observability
eBPF integrates at the kernel level, which gives strong controls with very little resource overhead and far more insight than a legacy CNI can offer.
Cilium handles secure networking, native ingress and mutual TLS with no sidecar proxies, which keeps the attack surface small
Hubble logs every packet and connection attempt, so policies get written from traffic you have observed rather than traffic you assumed
Start permissive and tighten from what Hubble shows. Guessing policies upfront is how teams end up with rules they are afraid to change
Proactive threat protection
Prevention is only half of it. Tetragon runs at the kernel layer, watching process behaviour and network activity, and enforces policy at the source rather than after the fact.
Runtime monitoring inspects container behaviour as it happens and flags anomalies
Layered alongside admission control, image scanning and least-privilege RBAC
Deliverables and outcomes
Component | What it brings |
|---|---|
| Cilium | Secure networking, native ingress and mutual TLS |
| Hubble | Cluster-wide visibility and network policy auditing |
| Tetragon | Real-time, kernel-level threat detection |
| Kubernetes native | Built in and cloud-agnostic, with nothing extra to operate |
| Compliance ready | Designed for environments with strict regulatory requirements |
| Flexible deployment | Runs on Amazon EKS, on-premises or hybrid |
Secure, efficient and built for scale
Cilium, Hubble and Tetragon combine into one security stack for Kubernetes: strong security without a performance penalty, actionable insight into what is actually talking to what, policy and compliance enforced rather than documented, and real-time threat detection. No sidecars to run alongside it.
This is the security layer of the platforms we build. Kubernetes on AWS covers the rest of the stack.
In short
eBPF delivers security, observability and efficiency at the kernel rather than in a sidecar
Cilium, Hubble and Tetragon together cover networking, visibility and runtime defence
Policy is enforced, traffic is visible, and threats are caught while they are happening
Do you know what your cluster allows?
Most audits start with a Hubble capture of what is actually talking to what.