WORKDIR will create this folder for us if it doesn’t exist.Ĭopy the solution file to the current image folder ( /DockerSource) and copy the project file to the folder /DockerSource/core5-website in the image. In the image we’re creating, change to the /DockerSource folder. NET 5 runtime base image later as this is smaller so will result in smaller output image. The SDK image is being used so we can compile the app but we’ll actually swap to the. Specifies the base image to use for our image. These commands can look a bit cryptic so I’ll explain them individually. RUN dotnet publish -c release -o /DockerOutput/Website -no -restoreįROM /dotnet/aspnet :5.0ĬOPY -from=build /DockerOutput/Website. # Copy csproj and restore as distinct layersĬOPY core5 -website/*.csproj. The first step to do this is to create a Dockerfile file at the solution root to hold the commands needed to build a Docker image: # First stageįROM /dotnet/sdk :5.0 AS build NET 5 ASP.NET Core website and run it up in Docker. Now when you run the site from Visual Studio, the “Welcome” page should display the time as well as detail that the website it’s not running in a container. Learn about building Web apps with ASP.NET Core. Var runningInContainer = Environment.GetEnvironmentVariable("DOTNET_RUNNING_IN_CONTAINER") = "true" Add the following code to the /Pages/Index.cshtml page: = "Home page"
We’ll make a change to the “Welcome” page to output the current time and to output (via an environment variable) whether the code is running in a container. The site is actually running in HTTP mode on port 5000 ( as well as HTTPS mode on port 5001 ( The website is configured to redirect HTTP requests to HTTPS via the HTTPS Redirection Middleware ( UseHttpsRedirection) in Startup.cs. Now if you run the project from Visual Studio, after accepting any development certificate prompts displayed, your browser should load the “Welcome” page on the URL Name the project core5-website in a new solution core5-docker-playarea. Use the target framework of “.NET 5” and “No Authentication”. NET 5 ASP.NET Core website in Visual Studio 2019 for Mac and running this website from both Visual Studio and from a Docker image.īefore we start, the following prerequisites need to be installed:
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