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docker pull cgr.dev/chainguard/dotnet-runtime
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Sign InMinimal image for .NET and the .NET Tools.
Chainguard Images are regularly-updated, minimal container images with low-to-zero CVEs.
This image is available on cgr.dev
:
Be sure to replace the ORGANIZATION
placeholder with the name used for your organization's private repository within the Chainguard registry.
The dotnet-sdk image can be used directly for simple cases, or with a multi-stage build using the dotnet-sdk as the builder and dotnet-runtime as the final target container.
To get started, go to your current dotnet application directory (or where you house your dotnet applications) and execute the following command. This command should be able to detect the dotnet project in your directory and create a base for the docker initialization.
docker init
This command should create the following files.
After the files have been created, replace the contents within the created Dockerfile with the following
This will build your application using the SDK image and then copy the built application over to the Runtime image which will then start.
You can run and publish a local image with the following command
You can also remove the container using the following
If you have a Zendesk account (typically set up for you by your Customer Success Manager) you can reach out to Chainguard's Customer Success team through our Zendesk portal.
Chainguard Images are a collection of container images designed for security and minimalism.
Many Chainguard Images are distroless; they contain only an open-source application and its runtime dependencies. These images do not even contain a shell or package manager. Chainguard Images are built with Wolfi, our Linux undistro designed to produce container images that meet the requirements of a secure software supply chain.
The main features of Chainguard Images include:
-dev
VariantsAs mentioned previously, Chainguard’s distroless Images have no shell or package manager by default. This is great for security, but sometimes you need these things, especially in builder images. For those cases, most (but not all) Chainguard Images come paired with a -dev
variant which does include a shell and package manager.
Although the -dev
image variants have similar security features as their distroless versions, such as complete SBOMs and signatures, they feature additional software that is typically not necessary in production environments. The general recommendation is to use the -dev
variants only to build the application and then copy all application artifacts into a distroless image, which will result in a final container image that has a minimal attack surface and won’t allow package installations or logins.
That being said, it’s worth noting that -dev
variants of Chainguard Images are completely fine to run in production environments. After all, the -dev
variants are still more secure than many popular container images based on fully-featured operating systems such as Debian and Ubuntu since they carry less software, follow a more frequent patch cadence, and offer attestations for what they include.
To better understand how to work with Chainguard Images, we encourage you to visit Chainguard Academy, our documentation and education platform.
Chainguard Images contain software packages that are direct or transitive dependencies. The following licenses were found in the "latest" version of this image:
Apache-2.0
GCC-exception-3.1
GPL-3.0-or-later
LGPL-2.1-or-later
MIT
MPL-2.0
For a complete list of licenses, please refer to this Image's SBOM.
Software license agreementA FIPS validated version of this image is available for FedRAMP compliance. STIG is included with FIPS image.