![]() ![]() RUN dotnet publish "simpleapi.csproj" -c Release -o /app/publish ![]() RUN dotnet build "simpleapi.csproj" -c Release -o /app/build RUN dotnet restore "simpleapi/simpleapi.csproj" That said, if you take the simplest ASP.NET web API project and choose the default Visual Studio 2019 template, you'll end up with the following Dockerfile:įROM /dotnet/core/aspnet:3.1-buster-slim AS baseįROM /dotnet/core/sdk:3.1-buster AS buildĬOPY You'll rather stumble upon GitHub issues and questions here and there.Īs you know, ASP.NET relies on the built-in Kestrel web server and most ASP.NET applications are either MVC, either Web APIs, meaning that they are unlikely going to leverage operating system level capabilities that require high privileges. At the time of writing, I challenge you to find a single source of truth (feel free to add it in comment if I missed any), endorsed by Microsoft on how to to harden an ASP.NET Docker image. Admitedly, there is a lack of guidance from Microsoft in that matter. Basically, most deployments are not hardened properly, and I see countless ASP.NET containers running as root. NET 5) K8s deployments are too permissive when it comes to the execution context. ![]() In my day to day job, I often stumbled upon a surprising fact: many ASP.NET Core (or.
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