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Important: Client Firewall Rules Update to Microsoft Container Registry (MCR)

To provide a consistent FQDNs, the data endpoint will be changing from *.cdn.mscr.io to *.data.mcr.microsoft.com

For more info, see MCR Client Firewall Rules.

The images from the dotnet/nightly repositories include last-known-good (LKG) builds for the next release of .NET.

See dotnet/core for images with official releases of .NET.

As part of the transition to .NET 5.0, Docker repos for .NET 5.0 and higher do not include core in the name as was done with older versions. As an example, ASP.NET Core 5.0 can be found at mcr.microsoft.com/dotnet/nightly/runtime:5.0 while 3.1 is still at mcr.microsoft.com/dotnet/core-nightly/runtime:3.1. See the related issue for more details.

Featured Tags

  • 5.0 (Preview)
    • docker pull mcr.microsoft.com/dotnet/nightly/runtime:5.0

About This Image

This image contains the .NET runtimes and libraries and is optimized for running .NET apps in production.

Watch dotnet/announcements for Docker-related .NET announcements.

How to Use the Image

The .NET Docker samples show various ways to use .NET and Docker together. See Building Docker Images for .NET Applications to learn more.

Container sample: Run a simple application

You can quickly run a container with a pre-built .NET Docker image, based on the .NET console sample.

Type the following command to run a sample console application:

docker run --rm mcr.microsoft.com/dotnet/core/samples

Related Repos

.NET Core 2.1/3.1:

.NET 5.0+:

.NET Framework:

Full Tag Listing

Linux amd64 Tags

.NET 5.0 Preview Tags
Tags Dockerfile OS Version
5.0.0-preview.3-buster-slim, 5.0-buster-slim, 5.0.0-preview.3, 5.0 Dockerfile Debian 10
5.0.0-preview.3-alpine3.11, 5.0-alpine3.11, 5.0.0-preview.3-alpine, 5.0-alpine Dockerfile Alpine 3.11
5.0.0-preview.3-focal, 5.0-focal Dockerfile Ubuntu 20.04

Linux arm64 Tags

.NET 5.0 Preview Tags
Tags Dockerfile OS Version
5.0.0-preview.3-buster-slim-arm64v8, 5.0-buster-slim-arm64v8, 5.0.0-preview.3, 5.0 Dockerfile Debian 10
5.0.0-preview.3-alpine3.11-arm64v8, 5.0-alpine3.11-arm64v8, 5.0.0-preview.3-alpine-arm64v8, 5.0-alpine-arm64v8 Dockerfile Alpine 3.11
5.0.0-preview.3-focal-arm64v8, 5.0-focal-arm64v8 Dockerfile Ubuntu 20.04

Linux arm32 Tags

.NET 5.0 Preview Tags
Tags Dockerfile OS Version
5.0.0-preview.3-buster-slim-arm32v7, 5.0-buster-slim-arm32v7, 5.0.0-preview.3, 5.0 Dockerfile Debian 10

Windows Server, version 1909 amd64 Tags

.NET 5.0 Preview Tags
Tag Dockerfile
5.0.0-preview.3-nanoserver-1909, 5.0-nanoserver-1909, 5.0.0-preview.3, 5.0 Dockerfile

Windows Server, version 1903 amd64 Tags

.NET 5.0 Preview Tags
Tag Dockerfile
5.0.0-preview.3-nanoserver-1903, 5.0-nanoserver-1903, 5.0.0-preview.3, 5.0 Dockerfile

Windows Server 2019 amd64 Tags

.NET 5.0 Preview Tags
Tag Dockerfile
5.0.0-preview.3-nanoserver-1809, 5.0-nanoserver-1809, 5.0.0-preview.3, 5.0 Dockerfile

You can retrieve a list of all available tags for dotnet/runtime at https://mcr.microsoft.com/v2/dotnet/runtime/tags/list.

Support

See Microsoft Support for .NET 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.

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