Chainguard Images

Retrieve Chainguard Images using Cloudsmith

Chainguard, a Docker Verified Publisher, offers Chainguard Images which are a collection of minimal, hardened Docker container images featuring:

  • Zero CVEs
  • Includes SBOMs and signatures
  • Minimal, containing only the application and its runtime dependencies

You can retrieve these images through Cloudsmith by enabling the upstream to Chainguard.

Chainguard offers both a Public Registry ( containing developer images and a Private/Dedicated Registry ( which includes all versioned tags of an image and special images not available in the public registry (including FIPS images and other custom builds).

Adding Chainguard as an Upstream

Here's how you can integrate the Chainguard Registry into your Cloudsmith account:

  1. Configure Upstream Proxying
    In your Cloudsmith repository, go to the Upstream Proxying settings.
    Click the green "Create Upstream" button and select the Docker format.
    Provide a descriptive name for the upstream, e.g., Chainguard Public, and specify the URL for the Chainguard Registry.
    Enter the Chainguard Registry URL:
    • For Chainguard’s public images:
    • For Chainguard’s Private/Dedicated Registry:
      Set the desired priority.
      Select Cache and Proxy.
  2. Configure SSL Certificate Verification
    Ensure SSL certificates are verified for added security, especially for public sources.
  3. Authentication and Headers
    If you are using the private URL, Chainguard requires authentication or additional headers; provide them in the respective fields.

Pull a Chainguard Image with Docker Native Tooling

Here’s an example of how you would pull the nginx Chainguard Docker image into Cloudsmith after you’ve configured your Cloudsmith upstream for Chainguard:

  1. Configure your Cloudsmith upstream for Chainguard using the instructions above.
  2. Ensure Docker is installed on your system. If not, go here to get started with Docker.
  3. Open a terminal.
  4. Login to Docker with your Cloudsmith username and token, with the command: docker login
  5. Pull the latest Chainguard nginx image by running:
    docker pull
    Note: Replace ORGANIZATION and REPOSITORY with your Cloudsmith organization and repository, respectively.
  6. Check your Cloudsmith repository to find the newly added Chainguard nginx image.

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