Individual skill
container-publish
Dockerfile-less containerization using the .NET 10 SDK container publishing feature. Covers MSBuild properties, chiseled images, multi-arch builds, and registry publishing — all without writing a Dockerfile. Load this skill when the user wants to containerize without a Dockerfile, or mentions "dotnet publish container", "PublishContainer", "ContainerRepository", "ContainerFamily", "chiseled", "distroless", "container publish", "SDK container", "no Dockerfile", or "containerize without Docker".
skills/container-publish/SKILL.md
Source commit 23300897f4d1a276bc475e373ecfe886e43dd7c5
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- Last checked
- Nov 4, 2026
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- Repository last updated
- Nov 4, 2026
- License
- MIT
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- writing Derived category
- devops Derived category
- devops-containers Derived category
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# Container Publishing (No Dockerfile)
## Core Principles
1. **No Dockerfile needed** — The .NET 10 SDK builds OCI-compliant container images directly from `dotnet publish /t:PublishContainer`. No Dockerfile to write or maintain.
2. **Chiseled images for production** — Use `noble-chiseled` base images: no shell, no package manager, 7 Linux components vs 100+. Smallest attack surface.
3. **Non-root by default** — .NET 10 container images run as the `app` user automatically. Never override to root in production.
4. **Configuration in the .csproj** — All container settings are MSBuild properties, versioned with your project. No separate files to drift.
## Patterns
### Minimal Container Publish
No project file changes needed. Just publish: