Whaler
A Go program that reverse engineers Docker images to reconstruct the original Dockerfile.
What is Whaler?
Whaler is a Go program that reverse engineers Docker images to reconstruct the original Dockerfile that created them. It analyzes image layers, extracts added files, and detects potential secrets, helping developers audit, debug, and understand containerized applications.
DevOps engineers, security auditors, and developers who need to inspect, audit, or reverse engineer Docker images for debugging, security analysis, or recovering lost build instructions.
Whaler provides a straightforward, command-line tool for reconstructing Dockerfiles from existing images, offering insights into image composition and potential security issues without requiring access to the original source code.
Overview
Program to reverse Docker images into Dockerfiles
Use Cases
Best For
- Auditing Docker images for security vulnerabilities and exposed secrets
- Reverse engineering Docker images when the original Dockerfile is lost or unavailable
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