Image2Docker
A PowerShell module that ports existing Windows application workloads to Docker containers by analyzing VMs and generating Dockerfiles.
What is Image2Docker?
Image2Docker is a PowerShell module that automates the process of migrating existing Windows application workloads to Docker containers. It analyzes Windows virtual machines, disk images, or remote systems to detect installed applications and configurations, then generates corresponding Dockerfiles. This enables organizations to containerize legacy IIS, ASP.NET, and other Windows-based applications without modifying the application code.
Windows system administrators, DevOps engineers, and developers responsible for modernizing legacy Windows applications by containerizing them for deployment on Windows Server 2016+ or Windows 10 with Docker.
Developers choose Image2Docker because it significantly reduces the manual effort required to create Dockerfiles for complex Windows workloads, provides an extensible framework for custom artifact discovery, and allows analysis without requiring Docker to be installed on the scanning system.
Overview
Image2Docker is a PowerShell module designed to simplify the migration of existing Windows applications to Docker containers. It analyzes Windows machines or disk images (VHDX/WIM files) and automatically generates Dockerfiles, enabling legacy workloads to run in modern containerized environments without application changes. This tool is particularly valuable for organizations modernizing their infrastructure by containerizing IIS, ASP.NET, and other Windows-based applications.
Key Features
- Windows Workload Analysis — Scans VHDX, WIM, or local/remote Windows systems to identify installed applications and configurations.
- Dockerfile Generation — Automatically creates Dockerfiles based on discovered artifacts like IIS websites, SQL Server instances, and Windows features.
- Artifact-Based Discovery — Supports customizable artifact detection for specific application types, including IIS, Apache, and Windows Server roles.
- No Docker Required for Analysis — Can generate Dockerfiles on systems without Docker installed, only requiring PowerShell 5.0.
- Extensible Framework — Allows adding custom artifact discovery scripts to support additional application types or configurations.
Philosophy
Image2Docker emphasizes automation and simplicity, aiming to reduce the manual effort involved in containerizing existing Windows applications by providing a structured, extensible framework for workload analysis and Dockerfile creation.
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