Docker Debugging Assistant FAQs

Question 1

How do I fix a container with exit code 137?

Accepted Answer

Exit code 137 usually indicates an Out of Memory (OOM) kill. This skill provides commands to verify OOM status via docker inspect and guidance on adjusting memory limits or optimizing the application.

Question 2

What is the 4-phase debugging methodology?

Accepted Answer

It is a structured approach that moves from Quick Assessment (status/logs) and Log Analysis to Interactive Investigation (shells/exec) and Deep Analysis (system events/filesystem exports).

Question 3

How do I debug a minimal container image without a shell?

Accepted Answer

This skill suggests using a sidecar approach, such as running a busybox or netshoot container within the same PID or network namespace as the target container for debugging.

Question 4

Does it cover Docker image build failures?

Accepted Answer

Yes, it provides troubleshooting steps for common build issues like failed layers, missing files in build contexts, and permission issues during the docker build process.

Question 5

Can this skill help with networking between containers?

Accepted Answer

Yes, it includes specific commands for inspecting networks, testing DNS resolution between containers, and using diagnostic tools like netshoot for connectivity analysis.

Docker Debugging Assistant

About

Key Features

Use Cases

Docker Debugging Assistant

About

Key Features

Use Cases