Tag: Cilium
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Using Hubble CLI’s automatic port forwarding
This will be a rather short blog post today, but it will highlight a new feature in the Hubble CLI in version 1.17 and later. Since version 1.17, the option -P has been added to the Hubble CLI. -P enables the automatic port forwarding to the Hubble relay in the Kubernetes cluster. As seen in…
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Using Cilium Hubble Exporter to log blocked egress traffic on Azure Kubernetes Service
In one of my previous blog posts, I covered how to do egress traffic blocking with Cilium bring-your-own CNI on Azure Kubernetes Service -> https://www.danielstechblog.io/egress-traffic-blocking-with-cilium-cluster-wide-network-policies-on-azure-kubernetes-service/ Today we look into Cilium Hubble Exporter which lets us write Hubble flows to the Cilium agent log output. Thus, Hubble flows can be collected by the logging solution running…
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Egress traffic blocking with Cilium cluster-wide network policies on Azure Kubernetes Service
Today, we talk about how to block egress traffic with Cilium cluster-wide network policies on Azure Kubernetes Service. For this, we need an Azure Kubernetes Service cluster with Cilium installed via the bring-your-own CNI approach. Azure CNI powered by Cilium unfortunately only partially supports Cilium network policies. However, Cilium cluster-wide network policies and Cilium CIDR…