This guide explains why kubectl exec often fails under security best practices, introduces kubectl debug with ephemeral containers for root‑level troubleshooting, shows how to create and use debug containers, and outlines alternative non‑native methods and tools for inspecting live pods.
Ephemeral containers are temporary debugging pods in Kubernetes that lack resource guarantees and cannot restart automatically; this guide explains their differences, enabling the feature via kube-apiserver and kubelet flags, creating a sample Tomcat pod, adding an Ephemeral container with kubectl debug, and updating it using raw API calls.
This guide explains what Kubernetes ephemeral containers are, why they’re useful for debugging, how to enable the feature gate, and provides step‑by‑step commands to create, attach to, and manage temporary containers within a pod.
This article explains how Ephemeral Containers, an alpha feature since Kubernetes v1.16, provide a native way to debug pods and even worker nodes, replacing older tools like kubectl‑debug and offering flexible, container‑agnostic troubleshooting with code examples and a custom debug image.
This guide explains how to troubleshoot Kubernetes workloads using the new kubectl debug command, covering the setup of EphemeralContainers, feature‑gate configuration, process‑namespace sharing, node debugging, and practical code examples for handling hard‑to‑debug pods.
