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Create a Docker file for a CMS app

Describes how to create a Docker file for an Optimizely Content Management System (CMS) application.



This example assumes you already have an Optimizely Content Management System (CMS) ASP.NET Core-based application on your machine.

The project in this example is called episerversample. See Install a sample site.

If you are new to ASP.NET, you can follow a simple tutorial to initialize a project or clone ASP.NET Docker Sample.

Create a Docker file for the app

  1. Create a Dockerfile in your project folder.

  2. Add the text below to your Dockerfile for Linux or Windows Containers. The tags below are multi-arch, meaning they pull Windows or Linux containers depending on the mode set in Docker Desktop for Windows. Read more in switch containers.

  3. The Dockerfile assumes that your application is called episerversample. Change the Dockerfile to use the DLL file of your project.

    FROM mcr.microsoft.com/dotnet/sdk:5.0-buster-slim AS build-env
    WORKDIR /app
    COPY \*.csproj ./  
    RUN dotnet restore
    COPY . ./  
    RUN dotnet publish -c Release -o out
    FROM mcr.microsoft.com/dotnet/aspnet:5.0-buster-slim  
    WORKDIR /app  
    COPY --from=build-env /app/out .
    EXPOSE 80
    ENTRYPOINT ["dotnet", "episerversample.dll"]   
  4. To make your build context as small as possible, add a .dockerignore file to your project folder and copy the following.
    bin/`` obj/

Build and run the Docker image

  1. Open a command prompt and go to your project folder.
  2. Use the following commands to build and run your Docker image:

docker build -t episerversample . docker run -it -e "Urls=<http://+:80>" -p 8080:80 episerversample