Ephemeral containers in Kubernetes are a powerful feature that allows operators to debug and troubleshoot running Pods by creating short-lived containers within the same Pod. This is particularly helpful for issues that cannot be replicated in a separate environment. By using ephemeral containers, you can attach a container to a running Pod, inspect the file system, network settings, or running processes, and then discard the container without affecting the Pod’s primary containers.
What Are Ephemeral Containers?
Ephemeral containers are special containers that do not run as part of an application workload but are instead added to an existing Pod for the purpose of debugging. They share the same resources (network namespace, volumes, etc.) as the other containers in the Pod, making them ideal for real-time diagnosis. Once debugging is complete, the ephemeral container can be removed without needing to recreate the entire Pod.
