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microsoft/Windows-Containers

Windows-Containers is Microsoft's issue tracker, not a container runtime

Welcome to our Windows Containers GitHub community! Ask questions, report bugs, and suggest features — let's work together.

558 stars74 forksPowerShellMIT

At a glance

What is it?
The microsoft/Windows-Containers repository holds no container images and no orchestration code. It is the community and bug tracking surface for the Windows Containers platform, with an issue policy, four troubleshooting resources and a CLA bot. Useful for reporting and triaging, useless as a source of code.
Who is it for?
Use microsoft/Windows-Containers to file reproducible Windows container bugs and to find the maintained troubleshooting paths, but do not expect a library, sample or runtime from it. Before opening an issue, check that you can reproduce the problem and include the steps, because reports without clear reproduction steps or inactive for more than two weeks are closed, and the actual install guidance lives at aka.ms/containers/install rather than in this repository.
Can I use it commercially?
Yes. MIT is a permissive licence: you can use, modify and sell software built on it, as long as you keep its copyright and licence notices.
Is it still maintained?
Yes. The repository received new commits within the last day.
What is it written in?
Mainly PowerShell, according to GitHub's language statistics.

Answers come from the project's GitHub data, last synced on October 23, 2026, and from our analysis. They are not legal advice.

Editorial analysis

A community surface with no code to adopt

The first thing to get right about microsoft/Windows-Containers is that it is not software you install. The README opens by saying the repository is managed by the Windows Containers platform team and is dedicated to tracking features and issues related to Windows Containers, and that the team monitors it to engage with the community, address questions, discuss customer scenarios and consider feature requests. The repository listing backs that up. At the top level you find .github/, .gitignore, CODE_OF_CONDUCT.md, LICENSE, README.md, SECURITY.md and a directory called helpful_tools/, with no service source, no Dockerfile and no release artifacts. The project is listed with PowerShell as its primary language, yet no scripts appear among those entries, which is a fair signal about how little executable code lives at the root. The MIT license on the repository is therefore mostly relevant for the small amount of content that is actually published there. For an engineer, the value of this repository is procedural: it tells you where the platform team listens and how to reach them.

The issue tracker closes what it cannot reproduce

If you only read one paragraph of this README, make it the one under Issues. The platform team asks that specific bugs or issues related to the Windows Container platform be filed on this repository, and it states a clear consequence: issues without clear reproduction steps, or that remain inactive for more than two weeks, will be closed. That is unusual enough to shape how you should work with it. A vague report is not a slow triage queue position, it is a closed ticket. A report that stalls because nobody answers the follow-up question also reaches the same end after a fortnight. The practical consequence is that you should treat the tracker as a channel that requires a complete submission on the first attempt, with the environment described and the steps written down. It also means the tracker is a poor place to park an open-ended question, since a question with no reproduction steps is precisely what the policy targets. Questions that do not need a fix belong in the support or documentation paths instead, which is where the README sends anyone still orienting themselves.

The installation guide lives at aka.ms/containers/install

There is no install script in this repository, and the README does not pretend otherwise. The Getting Started section simply says that if you are new to Windows Containers you should start by setting up your local environment and running your first Windows container, and points to a step by step guide linked as here, which resolves to https://aka.ms/containers/install. There is no command to copy, no prerequisite list and no configuration file in the repository itself, so this is the one project area where the correct response is to follow the external documentation rather than to reconstruct an install from the repo. The second step on the same list is a training module at learn.microsoft.com that covers deploying, managing, monitoring and operating Windows containers, including a path for AKS. Both links are the real dependency of this repository for anyone starting out, and the repository itself contributes the community layer on top of them. A separate Windows Container Blog is offered for product updates, so the README also covers the announcement channel, not only the support channel.

Troubleshooting is delegated to four external resources

The Troubleshooting section is the densest part of the README and it makes a clear statement about division of labour. Microsoft offers what it calls a comprehensive set of resources for troubleshooting Windows Containers, and it lists four of them. The first is a Windows Containers Troubleshooting Guide on learn.microsoft.com covering common issues. The second is a troubleshooting training module offering a guided learning path. The third is a hands-on workshop hosted in the Azure-Samples LegacyDotNetAppMigrationWorkshop repository, whose lab teaches advanced techniques for configuring, troubleshooting and debugging Windows containers. The fourth is a networking article on techcommunity.microsoft.com with step-by-step instructions for common networking problems, published as part one of a series on Kubernetes networking on Windows. Reading that list tells you something useful about where Windows container problems actually cluster. General issues, learning, deep debugging and networking each have a dedicated home, and only the networking one is a blog post in a series, so networking failures are the area most likely to need reading beyond a single page.

Contributions pass through a CLA bot, once per person

The Contributing section describes a process that is routine for Microsoft's open source work but worth stating plainly for newcomers. Most contributions require you to agree to a Contributor License Agreement declaring that you have the right to grant the rights to use your contribution, and the details live at the clause opensource microsoft URL. The mechanics are automated: when you submit a pull request, a CLA bot determines whether you need to provide a CLA and decorates the PR accordingly, with a status check and a comment, and the bot tells you what to do. The README adds that you only need to do this once across all repos using that CLA, which is the detail that decides whether a first-time contributor finds the process pleasant. The project has also adopted the Microsoft Open Source Code of Conduct, with the Code of Conduct FAQ linked and a contact address for additional questions or comments, and CODE_OF_CONDUCT.md and SECURITY.md at the repository root reflect that. Since the repository holds almost no code, most contributions here will be documentation edits, issue triage or something in helpful_tools.

Where real tooling lives: the separate windows-container-tools repository

The README is explicit that the open source tools that improve the Windows Containers experience are not in this repository. It points to the Windows Container Tools repository at github.com/microsoft/windows-container-tools and encourages people to test the tools, give feedback and contribute to their development. That split matters for anyone who lands here from a search looking for a tool and finds only a README, a license and an issue tracker. The division is sensible: the platform team keeps a place for questions, bugs and feature requests about the platform itself, while individual tools get their own development lifecycle, issues and pull requests. The top-level helpful_tools/ directory is the one part of this repository that hints at content rather than links, and it is worth opening it first before assuming the repository is empty of anything practical. For anyone evaluating what to adopt, the two repositories need to be read together, and the second one is where code lives.

Why the tracker beats a general forum for platform bugs

The usual alternative for asking a Windows container question is a general developer community forum or an internal support channel, and the difference in approach is worth weighing rather than defaulting. A forum thread is searchable, low friction, and forgiving of a half-formed question, but nothing there is owned by the platform team and no answer is guaranteed. A platform repository tracker, as this one describes it, attaches the report to the component it concerns, keeps it tied to the release line, and applies a policy that forces the submission to be complete. The cost of that ownership is the two-week closure rule and the fact that an unanswered question simply disappears from the queue. The two channels also serve different question types. A question of the form how do I configure X is a documentation and training matter, which the README routes to the install guide and the learning paths. A question of the form X is broken on my machine belongs here, with steps. Teams that understand that split waste far less time than teams that file everything in one place.

Editorial conclusion

Use microsoft/Windows-Containers to file reproducible Windows container bugs and to find the maintained troubleshooting paths, but do not expect a library, sample or runtime from it. Before opening an issue, check that you can reproduce the problem and include the steps, because reports without clear reproduction steps or inactive for more than two weeks are closed, and the actual install guidance lives at aka.ms/containers/install rather than in this repository.

Frequently asked questions

Where do I install my first Windows container?

The README sends you to its documentation link, which resolves to https://aka.ms/containers/install, for a step-by-step guide to setting up a local environment and running your first Windows container. The repository itself contains no install script or configuration.

What happens to Windows container issues filed without reproduction steps?

The README states that issues without clear reproduction steps, or that remain inactive for more than two weeks, will be closed. The tracker is meant for specific platform bugs, not for open-ended questions.

Does the Windows-Containers repository contain the Windows container tools?

No. The README directs users to the separate Windows Container Tools repository at github.com/microsoft/windows-container-tools for open source tools that enhance the Windows Containers experience. This repository holds the community, issue tracking and documentation links.

Do I need to sign a CLA to contribute to Windows-Containers?

The README says most contributions require agreeing to a Contributor License Agreement, and that a CLA bot checks pull requests automatically and tells you what to do. You only need to complete this once across all repos using that CLA.

Official sources

  1. Issues
  2. License: MIT
  3. microsoft/Windows-Containers on GitHub
  4. README
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