cassandra

packaged by Chainguard

Chainguard Container for cassandra

Cassandra is a free and open-source, distributed, wide-column store, NoSQL database.

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/cassandra: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 cassandra image is comparable to the Apache Cassandra image available on Docker Hub.

Like other Chainguard Containers, cassandra is a minimal image that has only the dependencies it needs to function.

Environment variables

The cassandra image does not support environment variables, as these rely on an entrypoint script. Instead, it has a docker-entrypoint.sh script which creates the config.

Getting Started

Deploy a new instance of Cassandra using this image:

docker run -d \
  --name cassandra \
  --cap-add=IPC_LOCK \
  --ulimit memlock=-1:-1 \
  --memory=3g \
  -e MAX_HEAP_SIZE=512M \
  -e HEAP_NEWSIZE=100M \
  -p 9042:9042 \
  cgr.dev/ORGANIZATION/cassandra:latest

You can use nodetool status to check if Cassandra is running properly.

It typically takes 1–2 minutes to become fully operational. Poll until it reports UN (Up/Normal):

docker exec -it cassandra nodetool status

Once ready, nodetool status will show output like the following:

Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address    Load        Tokens  Owns (effective)  Host ID                               Rack
UN  127.0.0.1  104.38 KiB  16      100.0%            0e75f72d-d273-4fac-807e-2b230583458c  rack1

cqlsh is available on the image:

docker exec -i cassandra cqlsh <<'EOF'
CREATE KEYSPACE testkeyspace WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1};
USE testkeyspace;
CREATE TABLE users (user_id UUID PRIMARY KEY, name text);
INSERT INTO users (user_id, name) VALUES (uuid(), 'Chainguard');
SELECT * FROM users;
EOF

 user_id                              | name
--------------------------------------+------------
 3f13c6b4-4a22-4de7-a1f6-a3ac6e887ddb | Chainguard

(1 rows)

Documentation and Resources

• Apache Cassandra documentation
• Apache Cassandra GitHub repository

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.