Docker and Containers (6): Debugging and Logging — When Things Go Wrong Inside a Box

Wed, 21 Jun 2023 09:00:00 +0000

A container that works is invisible. A container that doesn’t work is a black box. The entire point of containerization is isolation — but that same isolation makes debugging harder. You can’t just ssh into a container or browse its filesystem from the host. Docker provides a specific set of tools for inspecting, diagnosing, and understanding what happens inside running (and crashed) containers.

Reading Container Logs#

Logs are your first line of investigation. Docker captures everything a container writes to stdout and stderr.

Debugging on Chen Kai Blog

Docker and Containers (6): Debugging and Logging — When Things Go Wrong Inside a Box

Reading Container Logs#