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ASP.NET Core Containerizer

Writes a multi-stage Dockerfile and related setup to run an ASP.NET Core app in Linux containers.

Stars
40,703
Licence
MIT
Files
1 file

What it does

When you ask your AI agent to containerize a .NET web project, this skill tells it to package the app into a Docker container image that runs on Linux. The agent reads your .csproj file to find the .NET version, picks an official Microsoft base image, and writes a multi-stage Dockerfile that builds and publishes the app, then copies the output into a smaller runtime image that runs as a non-root user. It also asks the agent to make app settings readable from environment variables and to create a progress.md file tracking the changes.

Great for

  • ASP.NET Core developers who want a working Dockerfile without writing it from scratch
  • Teams moving existing .NET web apps into Docker or Kubernetes-style hosting
  • Developers who want a checklist of container best practices applied to their project

Skip it if

  • Non-.NET projects, since it only targets ASP.NET Core (.NET) applications
  • Users expecting infrastructure setup, which the skill explicitly excludes; it covers only the container files and needs the agent to edit your project files, so review changes before committing
  • Production deployments without review, because generated Dockerfiles and base image tags should be checked by someone who knows the app

Try asking

  • “Containerize the ASP.NET Core project at src/WebApi/WebApi.csproj for .NET 8 on Alpine”
  • “Create a multi-stage Dockerfile for my ASP.NET Core app that listens on port 8080 and runs as the default non-root user”
  • “Add a Dockerfile and .dockerignore for my .NET project, with a health check at /health”
Step-by-step guide: how to use ASP.NET Core ContainerizerInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 1 original files, the MIT licence and an attribution note.

    containerize-aspnetcore.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip containerize-aspnetcore.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip containerize-aspnetcore.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Fill in the settings section (project path, .NET version, Linux distribution, ports) before asking the agent to run it, since unspecified settings fall back to defaults
  • Review the generated Dockerfile and any edits to app configuration files, and build the image locally to verify it
  • Provide private NuGet feed details and any system packages explicitly, because the skill will not guess them

What's inside

  • SKILL.md

Redistributed unmodified from github/awesome-copilot under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.