monoEstimated reading time: 4 minutes
Mono is an open source implementation of Microsoft’s .NET Framework
GitHub repo: https://github.com/mono/docker
Supported tags and respective
Where to file issues:
the Mono Project
Supported Docker versions:
the latest release (down to 1.6 on a best-effort basis)
What is Mono
Sponsored by Xamarin, Mono is an open source implementation of Microsoft’s .NET Framework based on the ECMA standards for C# and the Common Language Runtime. A growing family of solutions and an active and enthusiastic contributing community is helping position Mono to become the leading choice for development of cross platform applications.
How to use this image
This image will run stand-alone Mono console apps.
Dockerfile in your Mono app project
This example Dockerfile will run an executable called
FROM mono:3.10-onbuild CMD [ "mono", "./TestingConsoleApp.exe" ]
Place this file in the root of your app, next to the
.sln solution file. Modify the exectuable name to match what you want to run.
This image includes
ONBUILD triggers that adds your app source code to
/usr/src/app/source, restores NuGet packages and compiles the app, placing the output in
With the Dockerfile in place, you can build and run a Docker image with your app:
$ docker build -t my-app . $ docker run my-app
You should see any output from your app now.
This Docker image is provided by Xamarin, for users of the Mono Project.
Thanks to Michael Friis for his preliminary work.
mono images come in many flavors, each designed for a specific use case.
This is the defacto image. If you are unsure about what your needs are, you probably want to use this one. It is designed to be used both as a throw away container (mount your source code and start the container to start your app), as well as the base to build other images off of.
This image does not contain the common packages contained in the default tag and only contains the minimal packages needed to run
mono. Unless you are working in an environment where only the
mono image will be deployed and you have space constraints, we highly recommend using the default image of this repository.
This Docker Image is licensed with the Expat License. See the Mono Project licensing FAQ for details on how Mono and associated libraries are licensed.
As with all Docker images, these likely also contain other software which may be under other licenses (such as Bash, etc from the base distribution, along with any direct or indirect dependencies of the primary software being contained).
Some additional license information which was able to be auto-detected might be found in the
As for any pre-built image usage, it is the image user’s responsibility to ensure that any use of this image complies with any relevant licenses for all software contained within.library, sample, mono