dotnet-docker/README.md

As part of the .NET 5.0 release, all .NET Docker images (including .NET Core 2.1 and 3.1) have transitioned to a new set of Docker repositories described below. Updates will continue to be made to supported tags in the old repository locations for backwards compatibility. Please update any repository references to these new names. For more information see the [.NET 5.0 repository rename announcement](https://github.com/dotnet/dotnet-docker/issues/2375).

# Featured Repos

* [dotnet/sdk](https://hub.docker.com/_/microsoft-dotnet-sdk/): .NET SDK
* [dotnet/aspnet](https://hub.docker.com/_/microsoft-dotnet-aspnet/): ASP.NET Core Runtime
* [dotnet/runtime](https://hub.docker.com/_/microsoft-dotnet-runtime/): .NET Runtime
* [dotnet/runtime-deps](https://hub.docker.com/_/microsoft-dotnet-runtime-deps/): .NET Runtime Dependencies
* [dotnet/samples](https://hub.docker.com/_/microsoft-dotnet-samples/): .NET Samples

# About .NET

[.NET](https://docs.microsoft.com/dotnet/core/) is a general purpose development platform maintained by Microsoft and the .NET community on [GitHub](https://github.com/dotnet/core). It is cross-platform, supporting Windows, macOS and Linux, and can be used in device, cloud, and embedded/IoT scenarios.

.NET has several capabilities that make development easier, including automatic memory management, (runtime) generic types, reflection, asynchrony, concurrency, and native interop. Millions of developers take advantage of these capabilities to efficiently build high-quality applications.

You can use C# or F# to write .NET apps. 

- [C#](https://docs.microsoft.com/dotnet/csharp/) is simple, powerful, type-safe, and object-oriented while retaining the expressiveness and elegance of C-style languages. Anyone familiar with C and similar languages will find it straightforward to write in C#.
- [F#](https://docs.microsoft.com/dotnet/fsharp/) is a cross-platform, open-source, functional programming language for .NET. It also includes object-oriented and imperative programming.

[.NET](https://github.com/dotnet/core) is open source (MIT and Apache 2 licenses) and was contributed to the [.NET Foundation](http://dotnetfoundation.org) by Microsoft in 2014. It can be freely adopted by individuals and companies, including for personal, academic or commercial purposes. Multiple companies use .NET as part of apps, tools, new platforms and hosting services.

You are invited to [contribute new features](https://github.com/dotnet/core/blob/master/CONTRIBUTING.md), fixes, or updates, large or small; we are always thrilled to receive pull requests, and do our best to process them as fast as we can.

> https://docs.microsoft.com/dotnet/core/

Watch [dotnet/announcements](https://github.com/dotnet/announcements/labels/Docker) for Docker-related .NET announcements.

# How to Use the Images

The [.NET Docker samples](https://github.com/dotnet/dotnet-docker/blob/master/samples/README.md) show various ways to use .NET and Docker together. See [Building Docker Images for .NET Applications](https://docs.microsoft.com/dotnet/core/docker/building-net-docker-images) to learn more.

## Container sample: Run a simple application

You can quickly run a container with a pre-built [.NET Docker image](https://hub.docker.com/_/microsoft-dotnet-samples/), based on the [.NET console sample](https://github.com/dotnet/dotnet-docker/blob/master/samples/dotnetapp/README.md).

Type the following command to run a sample console application:

```console
docker run --rm mcr.microsoft.com/dotnet/samples
```

## Container sample: Run a web application

You can quickly run a container with a pre-built [.NET Docker image](https://hub.docker.com/_/microsoft-dotnet-samples/), based on the [ASP.NET Core sample](https://github.com/dotnet/dotnet-docker/blob/master/samples/aspnetapp/README.md).

Type the following command to run a sample web application:

```console
docker run -it --rm -p 8000:80 --name aspnetcore_sample mcr.microsoft.com/dotnet/samples:aspnetapp
```

After the application starts, navigate to `http://localhost:8000` in your web browser.

See [Hosting ASP.NET Core Images with Docker over HTTPS](https://github.com/dotnet/dotnet-docker/blob/master/samples/host-aspnetcore-https.md) to use HTTPS with this image.

# Related Repos

.NET:

* [dotnet/samples](https://hub.docker.com/_/microsoft-dotnet-samples/): .NET Samples
* [dotnet/nightly](https://hub.docker.com/_/microsoft-dotnet-nightly/): .NET (Preview)

.NET Framework:

* [dotnet/framework](https://hub.docker.com/_/microsoft-dotnet-framework/): .NET Framework, ASP.NET and WCF
* [dotnet/framework/samples](https://hub.docker.com/_/microsoft-dotnet-framework-samples/): .NET Framework, ASP.NET and WCF Samples

# Support

See [Microsoft Support for .NET](https://github.com/dotnet/core/blob/master/microsoft-support.md) for the support lifecycle.

# Image Update Policy

* We update the supported .NET images within 12 hours of any updates to their base images (e.g. debian:buster-slim, windows/nanoserver:1909, buildpack-deps:bionic-scm, etc.).
* We publish .NET images as part of releasing new versions of .NET including major/minor and servicing.

# Feedback

* [File an issue](https://github.com/dotnet/dotnet-docker/issues/new/choose)
* [Contact Microsoft Support](https://support.microsoft.com/contactus/)

# License

* Legal Notice: [Container License Information](https://aka.ms/mcr/osslegalnotice)
* [.NET license](https://github.com/dotnet/dotnet-docker/blob/master/LICENSE)
* [Discover licensing for Linux image contents](https://github.com/dotnet/dotnet-docker/blob/master/documentation/image-artifact-details.md)
* [Windows base image license](https://docs.microsoft.com/virtualization/windowscontainers/images-eula) (only applies to Windows containers)
* [Pricing and licensing for Windows Server 2019](https://www.microsoft.com/cloud-platform/windows-server-pricing)