docker pull dustinsoftware/rpi-net-core
docker run -d -p 5000:5000 dustinsoftware/rpi-net-core
For fun of course! The Raspberry Pi is an amazing embedded platform to hack on projects with.
dotnet new react by default will give you a project that runs fine on x86/x64 architectures. The RPI, however, runs on arm32v7. We'll need to make a few small changes to support this architecture.
New projects by default include the metapackage Microsoft.AspNetCore.All, which makes some assumptions about what libraries are already on the runtime target. For this to work with Docker, this means the runtime image needs to be microsoft/aspnetcore However, this poses a problem!
There is no ARM package for the microsoft/aspnetcore Docker image. The dockerfile indicates that pre-made binaries for this image are pulled from a CDN, but there don't appear to be any that exist for armv7.
Fortunately, there is a docker image already for the ARMv7 .NET Core runtime, we are be able to use that as a base image! Now we just have to declare the AspNetCore dependencies explicitly.
For this project, I just needed to reference:
Microsoft.AspNetCore
Microsoft.AspNetCore.Mvc
Microsoft.AspNetCore.SpaServices
Microsoft.AspNetCore.StaticFiles
The documentation shows how to go about building - you must use a machine with the full SDK to build, then push the built binaries to the Raspberry PI. I won't bother copying it here :) Make sure to use the aspnetcore-sdk base image so you have Node available during the build as well.
Get a local build working first:
docker build -t netcore-local .
docker run -d -p 5000:5000 netcore-local
Once this is confirmed working, build an ARM specific image:
docker build -t dustinsoftware/rpi-net-core -f Dockerfile.arm32 .
docker push dustinsoftware/rpi-net-core
If you are having trouble, get the ID of the image, then use docker logs (containerid)
This was a fun exercise. It's so exciting to see the .NET platform become more accessible, hats off to the whole team for making this a reality!