Once you have Krew installed, you can install ksniff with a single command: $ kubectl krew install sniff You can find installation instructions for Krew on the project's website. The official installation instructions for ksniff recommend using the Krew plugin manager, which is my preferred installation method. Ksniff is a plugin for kubectl, and you must install it before you can start using it. The official ksniff documentation does not yet recommend its use in production, and you should be aware that it uploads a precompiled tcpdump binary to your running pods. Let's get started!ĭisclaimer: The techniques explained in this article should only be used in development environments and with a complete understanding of what you are doing. I'll show you how to capture, filter, and save packets for later analysis. Ksniff is a plugin for kubectl that allows you to capture packets in your Kubernetes pods. This article introduces ksniff, an excellent open source tool that I've been using. However, I've consistently found that viewing the packets traversing the wire is the best way to troubleshoot and understand complex protocol and application-level issues. Basic network tools, such as ping and traceroute, can be helpful during the initial troubleshooting stage. Kubernetes and its associated extensions, such as service meshes, introduce additional network complexity that an administrator must be prepared to tackle. Get started with Red Hat OpenShift Service on AWS.Interactive course: Create a cluster in Red Hat OpenShift Service on AWS with S….Interactive course: Getting started with OpenShift.
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