Chainguard Container for graphicsmagick

Minimal container image with GraphicsMagick, a collection of tools allowing you to read, write, and manipulate images in a variety of formats.

Chainguard Containers are regularly-updated, secure-by-default container images.

Download this Container Image

For those with access, this container image is available on cgr.dev:

docker pull cgr.dev/ORGANIZATION/graphicsmagick:latest

Be sure to replace the ORGANIZATION placeholder with the name used for your organization's private repository within the Chainguard Registry.

Compatibility Notes

Chainguard's GraphicsMagick image does not have a specific external counterpart. Like all other Chainguard images, it contains only the minimum set of dependencies needed to function, and does not include thigns like a shell or package manager.

Getting Started

The Chainguard GraphicsMagick image contains the gm binary. The image is intended to be run as CLI to manipulate images.

For example, you can use a command like the following to get information about an image:

docker run \
  -v ./images:/images \
  cgr.dev/ORGANIZATION/graphicsmagick \
  identify /images/linky.png
/images/linky.png PNG 638x636+0+0 PseudoClass 256c 8-bit 69.4Ki 0.000u 0m:0.000001s

Commands like the following can convert an image into another format:

docker run \
  -v ./images:/images \
  cgr.dev/ORGANIZATION/graphicsmagick \
  convert /images/linky.png /images/linky.jpg

To prevent permissions issues, you can use the --user $(id -u) docker option to run the container with same UID as current user. For example:

docker run \
  --user $(id -u) \
  -v ./images:/images \
  cgr.dev/ORGANIZATION/graphicsmagick \
  convert /images/linky.png /images/linky.jpg

In order to manipulate image files, they need to be mounted into the running container via a volume, as shown in each of these examples.

Documentation and Resources

• GraphicsMagick Command-line Utilities
• GraphicsMagick Reference Information

What are Chainguard Containers?

Chainguard Containers are minimal container images that are secure by default.

In many cases, the Chainguard Containers tagged as :latest contain only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager. Chainguard Containers are built with Wolfi, our Linux undistro designed to produce container images that meet the requirements of a more secure software supply chain.

The main features of Chainguard Containers include:

• Minimal design, without unnecessary software bloat
• Daily builds to ensure container images are up-to-date with available security patches
• High quality build-time SBOMs attesting to the provenance of all artifacts within the image
• Verifiable signatures provided by Sigstore
• Reproducible builds with Cosign and apko (read more about reproducibility)

For cases where you need container images with shells and package managers to build or debug, most Chainguard Containers come paired with a -dev variant.

Although the -dev container image variants have similar security features as their more minimal versions, they feature additional software that is typically not necessary in production environments. We recommend using multi-stage builds to leverage the -dev variants, copying application artifacts into a final minimal container that offers a reduced attack surface that won’t allow package installations or logins.

Learn More

To better understand how to work with Chainguard Containers, please visit Chainguard Academy and Chainguard Courses.

In addition to Containers, Chainguard offers VMs and Libraries. Contact Chainguard to access additional products.

Trademarks

This software listing is packaged by Chainguard. The trademarks set forth in this offering are owned by their respective companies, and use of them does not imply any affiliation, sponsorship, or endorsement by such companies.