GoogleContainerTools/container-diffArchived
Container Diff
Container-diff is a command-line utility designed to inspect and compare the internal composition of container images. It functions as an auditor for containerized environments, providing visibility into the filesystem structure, installed software packages, and configuration metadata of individual images or differences between two distinct builds.
The tool distinguishes itself through its ability to perform granular analysis across container layers, allowing users to trace build history and identify specific configuration drift. By supporting registry-agnostic image fetching and modular analysis drivers, it integrates into diverse workflows to verify software supply chain consistency and troubleshoot build-time errors.
Beyond basic inspection, the utility provides comprehensive reporting capabilities, including the ability to generate structured output for automated monitoring and performance auditing. It supports authentication with remote registries to facilitate secure access to private images, ensuring that audits can be performed across various deployment environments.
Features
- Container Image Analyzers - Inspects the internal file structure, installed packages, and metadata of container images to provide visibility into their composition.
- Container Image Metadata - Tracks updates and configuration drift by contrasting the filesystems, metadata, and packages of two container images.
- Container Filesystem Comparators - Highlights changes in environment and configuration by comparing the filesystems of two container images.
- Container Image Layer Analyzers - Provides granular visibility into container image composition by analyzing individual filesystem layers.
- Container Image Analysis - Identifying specific differences in files, packages, and configuration settings between two container images to track updates and environment drift.
- Dependency Audit Tools - Audits package dependencies to ensure consistency and security across container builds.
- File Change Inspectors - Pinpoints configuration or binary variations by inspecting specific file changes between container images.
- Container Registry Authentications - Provides authentication mechanisms to securely access and pull private container images from remote registries during analysis.
- Build History Tracers - Traces the build history of container images to understand their origin and configuration steps.
- Registry-Agnostic Fetchers - Supports flexible image retrieval from local daemons, remote registries, and archived files.
- Container Image Browsers - Examines the internal composition, layer history, and configuration settings of individual container images.
- Analysis Utilities - A command-line utility for comparing the file systems, installed packages, and metadata of two Docker container images.
- Container Build Troubleshooting - Analyzes container layer history and configuration metadata to help developers identify and resolve build-time errors.
- Package Version Comparators - Detects version discrepancies in installed software packages between different container images.
- Software Supply Chain Security - Verifies container image contents and dependencies to detect unauthorized changes or version discrepancies before production deployment.
- Software Supply Chain Auditors - Identifies version discrepancies and configuration drift between different builds of containerized software environments.
- Filesystem Difference Reporters - Lists specific file path and size differences to identify changes between container builds.
- Image Metadata Comparators - Compares configuration details and runtime settings between container images.
- Manifest Comparison Tools - Identifies configuration drift between container builds by comparing image manifests.
- Analysis Drivers - Uses modular drivers to extract and analyze diverse data types from container images.
