Chainguard Image 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 Images are regularly-updated, minimal container images with low-to-zero CVEs.

Download this Image

This 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

Contact Support

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.

What are Chainguard Images?

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:

• Minimal design, with no unnecessary software bloat
• Automated nightly builds to ensure Images are completely up-to-date and contain all available security patches
• High quality build-time SBOMs (software bills of materials) attesting the provenance of all artifacts within the Image
• Verifiable signatures provided by Sigstore
• Reproducible builds with Cosign and apko (read more about reproducibility)

-dev Variants

As 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.

Learn More

To better understand how to work with Chainguard Images, we encourage you to visit Chainguard Academy, our documentation and education platform.