How to run Blazor (C #) with Docker

What is Blazor?

Blazor is a framework for building interactive client-side web UIs using .NET. · Use C # instead of JavaScript to create a great interactive UI. -Share the logic of server-side and client-side apps written in .NET. -Render the UI as HTML and CSS for a wide range of browser support, including mobile browsers. -Integrate with the latest hosting platforms such as Docker.

I see, it's amazing.

I tried running Blazor on Docker, so I would like to summarize the procedure.

This time I would like to build with the ASP.NET Core Blazor hosting model. On the browser side, the WebAssembly-based .NET runtime (Blazor WebAssembly) is running.


First, create a project

Execute the following command. The project name is BrazorwasmDotNetCoreHostedWithDocker.

dotnet new blazorwasm --hosted -o BrazorwasmDotNetCoreHostedWithDocker



With this kind of feeling, I think that you can create a project for the server side, client side, and common parts.

Check the operation locally

cd BrazorwasmDotNetCoreHostedWithDocker
dotnet publish

If all goes well, your project should have an executable in Server \ bin \ Debug \ netcoreapp3.1 \ publish below. Make sure there is a www root under it. That will be the public folder.

It will start.

cd Server\bin\Debug\netcoreapp3.1\publish
dotnet BrazorwasmDotNetCoreHostedWithDocker.Server.dll

The log is output like this. キャプチャ.JPG I think there is a Content root path in it, but that is the content root, and the wwwroot under it is the public folder.

Access http: // localhost: 5000 / from your browser, and if the following page is displayed, it is successful. キャプチャ.JPG

Do the same thing on Docker as above.

Make a Dockerfile

Create the following Docker file at the top of the project.


FROM AS build-env
#Copy and restore everything under it
COPY . ./
RUN dotnet restore
#Publish to out directory
RUN dotnet publish -c Release -o out

#Prepare an image for execution
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "BrazorwasmDotNetCoreHostedWithDocker.Server.dll"]

Regarding the image for execution, The content root path is the dotnet command execution directory, and it is set to bring wwwroot directly under / app.

Docker build

Please come back to just below the project

docker build -t brazorwasmdotnetcorehosted .

Run here. I created it with the image brazorwasmdotnetcorehosted. If you do docker images and you have an image, you are successful. キャプチャ.JPG

Docker run

docker run -d -p 80:80 brazorwasmdotnetcorehosted:latest --rm

If you go to http: // localhost /, you should see the previous page.

By the way, in the case of stand-alone (static content only)

When making the first project

dotnet new blazorwasm -o BrazorwasmDotNetCoreStandAloneWithDocker

And you can build it with Dockerfile. I'm running with nginx.


FROM AS build-env
#Copy and restore everything under it
COPY . ./
RUN dotnet restore
#Publish to out directory
RUN dotnet publish -c Release -o out

FROM nginx:alpine
COPY --from=build-env /app/out/wwwroot /usr/share/nginx/html

Recommended Posts

How to run Blazor (C #) with Docker
How to run JavaFX on Docker
How to start Camunda with Docker
How to share files with Docker Toolbox
[Rails] How to use rails console with docker
How to build Rails 6 environment with Docker
How to run a job with docker login in AWS batch
Run Pico with docker
How to install Docker
Run Payara with Docker
How to give your image to someone with docker
How to use docker compose with NVIDIA Jetson
How to use nginx-ingress-controller with Docker for Mac
[Rails] How to build an environment with Docker
How to run javafx with Raspberry Pi Posted on 2020/07/12
Run TAO Core with Docker
How to build docker environment with Gradle for intelliJ
[Docker environment] How to deal with ActiveSupport :: MessageEncryptor :: InvalidMessage
How to set Docker nginx
How to number (number) with html.erb
Run Rails whenever with docker
How to update with activerecord-import
How to make Laravel faster with Docker for Mac
[Docker + Rails] How to deal with Rails server startup failure
Let's write how to make API with SpringBoot + Docker from 0
How to run only specific files with gem's rake test
How to build [TypeScript + Vue + Express + MySQL] environment with Docker ~ Express ~
How to get started with Gatsby (TypeScript) x Netlify x Docker
How to build Rails, Postgres, ElasticSearch development environment with Docker
How to use mysql with M1 mac Docker preview version
Write DiscordBot to Spreadsheets Write in Ruby and run with Docker
How to scroll horizontally with ScrollView
Run lambda with custom docker image
How to get started with slim
How to run JUnit in Eclipse
How to run Ant in Gradle
How to enclose any character with "~"
Hello World with Docker and C
How to use mssql-tools with alpine
[Artifactory] How to use Docker repository
How to get along with Rails
Make JupyterLab run anywhere with docker
Update MySQL from 5.7 to 8.0 with Docker
How to build CloudStack using Docker
How to build [TypeScript + Vue + Express + MySQL] environment with Docker ~ MySQL edition ~
Run logstash with Docker and try uploading data to Elastic Cloud
How to build Rails + Vue + MySQL environment with Docker [2020/09 latest version]
How to build [TypeScript + Vue + Express + MySQL] environment with Docker ~ Sequelize ~
[For those who create portfolios] How to use binding.pry with Docker
How to crop an image with libGDX
How to adjustTextPosition with iOS Keyboard Extension
How to compile Java with VsCode & Ant
[Java] How to compare with equals method
Convert C language to JavaScript with Emscripten
Run Embulk on Docker to convert files
[Android] How to deal with dark themes
How to use BootStrap with Play Framework
How to switch thumbnail images with JavaScript
Deploy to heroku with Docker (Rails 6, MySQL)
How to use Docker in VSCode DevContainer
How to do API-based control with cancancan