docker-slim/docker-slim
Docker Slim
This project is a suite of specialized tools for linting, minifying, analyzing, and managing container images and their associated registries. It provides a set of utilities including an image minifier to reduce image size, a security profiler to harden running containers, an image analyzer for static inspection, and a registry manager for organizing multi-architecture indices.
The toolset distinguishes itself through behavior-based optimization and security. It uses dynamic analysis to track executed instructions and file access to remove unused binary data, and records kernel interactions to generate restrictive system call profiles. It also employs HTTP probing to discover dynamically loaded components by crawling exposed web ports.
The broader capability surface includes static Dockerfile linting, container image merging, and vulnerability analysis to assess threat levels within an image. It further supports troubleshooting workflows via interactive sidecar container debugging and multi-architecture registry synchronization across cloud and local environments.
Features
- Image Minifications - A tool that reduces container image size by removing unused data and dependencies to shrink the security attack surface.
- Container Image Optimizers - Reduces the size of Docker images by removing unused dependencies and data.
- Image Build and Analysis - Performs static analysis on container images to reveal internal contents and layer changes.
- Binary Data Minifiers - Implements dynamic analysis to track executed instructions and remove unused binary data to shrink image size.
- Image Layer Analyzers - Decomposes container image manifests to isolate and inspect individual filesystem layers.
- Container Image Analyzers - Inspects internal layer structure and composition of container images to understand their content.
- System Call Profilers - Synthesizes restrictive system call policies by recording kernel interactions during application execution.
- Container Hardening - Reduces the attack surface of containerized applications by removing unused components and creating restrictive profiles.
- Configuration Linters - Evaluates Dockerfiles against best practices to identify potential issues and suggest quality improvements.
- Registry Management - Synchronizes and organizes multi-architecture image indices across different cloud or local registries.
- Multi-Architecture Synchronization - Manages the transfer and organization of multi-architecture image indices across cloud and local registries.
- Container Registry Management - Synchronizes and organizes multi-architecture image indices across local and cloud-based registries.
- Container Troubleshooting - Provides a troubleshooting workflow using side-car shells and web interface probing to identify dynamic components.
- Dockerfile Utilities - Analyzes container instructions within Dockerfiles to identify potential issues and suggest quality improvements.
- In-Container Debugging Tools - Attaches a separate container to a target process to provide an interactive shell and introspection tools.
- Image Vulnerability Assessments - Retrieves and filters risk information for specific security IDs to assess threat levels within container images.
- Service Probing Tools - Crawls exposed web ports to detect active components and dependencies for more accurate container analysis.
- Container Management Tools - Tool for shrinking container image sizes.
- Image Builders - Shrinks container images to the smallest possible size.
