Chainguard Image for spark

Spark provides high-level APIs in Scala, Java, Python, and R, and an optimized engine that supports general computation graphs for data analysis.

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/spark:latest

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

Usage (Kubernetes)

This usage guide provides a quick overview of how to run a Spark application on the Kubernetes cluster using the spark-operator.

To deploy Spark Operator on the Kubernetes, you can follow the official documentation.

helm repo add spark-operator https://kubeflow.github.io/spark-operator
helm repo update
helm install spark-operator spark-operator/spark-operator \
    --namespace spark-operator \
    --create-namespace \
    --set image.registry="" \
    --set image.repository="cgr.dev/chainguard/spark" \
    --set image.tag="3.5-scala-2.13-python-3.12-openjdk-17"

Then, run an example to spin up a Spark application.

Testing

This image is tested using the Kubeflow's spark-operator's sample applications. The tests are available in the examples directory.

Automated test traverses the examples directory and runs the test steps for each example. On each step, it checks the status of the Job and Pod resources. Then awaits the successful completion of the Pod. Eventually, it asserts there are no unexpected logs and that the expected logs are present. Lastly, the test is considered successful if all the examples are successfully completed.

Tagging Strategy

We tried to align our tags with the upstream project's versioning policy. However, there is no guarantee that the tags will always be 1:1 mapping with the upstream since they might change the versions of the required dependencies. We strongly recommend using the full version referenced tags. Tags are in the following format:

<spark-version>-scala-<scala-version>-python-<python-version>-openjdk-<openjdk-version>

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.