Chainguard Container for wolfi-base

Base image for the Wolfi Linux Distribution.

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/wolfi-base:latest

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

Usage

The Chainguard wolfi-base Image includes a shell and package manager. The Image will start in a shell by default:

docker run -it cgr.dev/chainguard/wolfi-base

6d38c9b4f0d9:/#

You can run commands from within the shell like this, or you can run commands directly on your local machine without opening a shell:

docker run cgr.dev/chainguard/wolfi-base ps

PID   USER     TIME  COMMAND
    1 root      0:00 ps

This Image is commonly used in Dockerfiles, as in the following example:

FROM cgr.dev/chainguard/wolfi-base

RUN apk update && apk add redis

ENTRYPOINT ["/usr/bin/redis-server"]

This example Dockerfile will update apk and install the Redis server onto the base Image.

You could use a Dockerfile like this to build a new image:

docker build -t myredis --progress plain --no-cache .

#0 building with "desktop-linux" instance using docker driver

#1 [internal] load .dockerignore
#1 transferring context: 656B done
#1 DONE 0.0s

#2 [internal] load build definition from Dockerfile
#2 transferring dockerfile: 144B done
#2 DONE 0.0s

#3 [internal] load metadata for cgr.dev/chainguard/wolfi-base:latest
#3 DONE 0.0s

#4 [1/2] FROM cgr.dev/chainguard/wolfi-base
#4 CACHED

#5 [2/2] RUN apk update && apk add redis
#5 0.104 fetch https://packages.wolfi.dev/os/aarch64/APKINDEX.tar.gz
#5 0.702  [https://packages.wolfi.dev/os]
#5 0.702 OK: 14620 distinct packages available
#5 0.750 (1/1) Installing redis (7.2.0-r0)
#5 1.207 OK: 15 MiB in 15 packages
#5 DONE 1.2s

#6 exporting to image
#6 exporting layers 0.0s done
#6 writing image sha256:bde1c89d952e0e0155acb410ee8143b1daf542bd36a6b22c032250633d08bf76 done
#6 naming to docker.io/library/myredis done
#6 DONE 0.0s

Following that, you can run the new image built from the wolfi-base Image.

docker run myredis

Further Reading

To learn more, we encourage you to visit Chainguard Academy which contains extensive documentation on getting started with Wolfi.

Get this image as a Chainguard VM

This image is also available as a Chainguard VM, available to deploy on Amazon AWS EC2, Google Cloud Compute Engine, Microsoft Azure and On-Prem through VMware, KVM and QEMU virtualization. Complete our registration form to get access to Chainguard VMs and try it out for yourself.

What are Chainguard Containers?

Chainguard's free tier of Starter container images are built with Wolfi, our minimal Linux undistro.

All other Chainguard Containers are built with Chainguard OS, Chainguard's minimal Linux operating system 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 development, or -dev, variant.

In all other cases, including Chainguard Containers tagged as :latest or with a specific version number, the container images include only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager.

Although the -dev container image variants have similar security features as their more minimal versions, they include additional software that is typically not necessary in production environments. We recommend using multi-stage builds to copy artifacts from the -dev variant into a more minimal production image.

Need additional packages?

To improve security, Chainguard Containers include only essential dependencies. Need more packages? Chainguard customers can use Custom Assembly to add packages, either through the Console, chainctl, or API.

To use Custom Assembly in the Chainguard Console: navigate to the image you'd like to customize in your Organization's list of images, and click on the Customize image button at the top of the page.

Learn More

Refer to our Chainguard Containers documentation on Chainguard Academy. Chainguard also offers VMs and Libraries — contact us for access.

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.