Chainguard Image now available for NATS

Dan Lorenc, CEO
March 27, 2023

NATS is a high-performance, cloud-native messaging system designed for edge and cloud use cases. We’re excited to announce we now have a hardened Chainguard Image for NATS. The Chainguard NATS Image is built on Wolfi, our secure by default operating system for containerized workloads that allows for minimal Images built with our hardened toolchain

To get started with the Chainguard NATS Image pull the following and run it:

-- CODE language-bash -- % docker run [1] 2023/03/18 12:16:10.462431 [INF] Starting nats-server [1] 2023/03/18 12:16:10.462525 [INF] Version: 2.9.15 [1] 2023/03/18 12:16:10.462527 [INF] Git: [b91fa85462d42c2f988170aee27955773e68c56d] [1] 2023/03/18 12:16:10.462530 [INF] Cluster: Hmupub4UnnYq6voFq5iK6X [1] 2023/03/18 12:16:10.462533 [INF] Name: ND6XNANOPWNAPDAVUNYZQEKYD5KYVXLZHXZ3BYEWYXMH5ZF2XLUL2SU4 [1] 2023/03/18 12:16:10.462534 [INF] ID: ND6XNANOPWNAPDAVUNYZQEKYD5KYVXLZHXZ3BYEWYXMH5ZF2XLUL2SU4 [1] 2023/03/18 12:16:10.462544 [INF] Using configuration file: /etc/nats/nats-server.conf [1] 2023/03/18 12:16:10.463399 [INF] Starting http monitor on [1] 2023/03/18 12:16:10.463502 [INF] Listening for client connections on [1] 2023/03/18 12:16:10.463719 [INF] Server is ready [1] 2023/03/18 12:16:10.463745 [INF] Cluster name is Hmupub4UnnYq6voFq5iK6X [1] 2023/03/18 12:16:10.463752 [WRN] Cluster name was dynamically generated, consider setting one [1] 2023/03/18 12:16:10.463801 [INF] Listening for route connections on ^C[1] 2023/03/18 12:16:14.736516 [INF] Initiating Shutdown... [1] 2023/03/18 12:16:14.736997 [INF] Server Exiting..

We also offer a development NATS Image variant that contains a few extra utilities, like the nats CLI and the nsc tool, for working with NATS and associated configurations and authentication tokens. This Image is available at

The Chainguard NATS Image is over 50% smaller than other similar options and comes with our zero-known CVE target. See the numbers for yourself:

As always, the binaries in our Images are built from source and come with comprehensive and SBOMs from the start. These SBOMs contain the package metadata for everything in the Image and can be used for vulnerability scanning or license compliance. You can download the SBOMs for these containers with cosign:

-- CODE language-bash -- $ cosign download sbom --platform=linux/amd64 Found SBOM of media type: text/spdx+json { "SPDXID": "SPDXRef-DOCUMENT", "name": "sbom-sha256:27c560d563ef3428a39e6d3bb3a972ee69e98ec0a8f6e5e16410b5761946d950", "spdxVersion": "SPDX-2.3", "creationInfo": { "created": "2023-03-18T00:09:05Z", "creators": [ "Tool: apko (v0.7.2-2-g6999856)", "Organization: Chainguard, Inc" ], "licenseListVersion": "3.16" }, "dataLicense": "CC0-1.0", "documentNamespace": "", "documentDescribes": [ "SPDXRef-Package-sha256-049445d02bf2414bc0f95b99c5825ece3affb58ec7679d198503b5c5d1e61161" ], "packages": [ { "SPDXID": "SPDXRef-Package-sha256-049445d02bf2414bc0f95b99c5825ece3affb58ec7679d198503b5c5d1e61161", "name": "sha256:049445d02bf2414bc0f95b99c5825ece3affb58ec7679d198503b5c5d1e61161", "filesAnalyzed": false, "description": "apko container image", "downloadLocation": "NOASSERTION", "primaryPackagePurpose": "CONTAINER", "checksums": [ { "algorithm": "SHA256", "checksumValue": "049445d02bf2414bc0f95b99c5825ece3affb58ec7679d198503b5c5d1e61161" }

If you want to see upwards of a 50% reduction in your NATS image sizes with more security built in by default, start using Chainguard’s NATS Image today at, or get started with our documentation in Chainguard Academy. Chainguard Images are now available for Apache Zookeeper, Bazel, curl, Git, Go, Jenkins, Postgres, Ruby and more. We currently offer our public Chainguard Images catalog for no cost to users, which includes features like SBOMs, signatures and SLSA Build Level 2 provenance information. If your organization requires patching SLAs, older version support or Images for compliance requirements, we offer Standard and Custom subscription tiers. Contact our team to learn more. 

We are always looking for ways to improve our end user experience. If you have feedback or would like to submit a support issue you can reach out to us directly or file it here.

Update on our Chainguard Images Catalog: On August 16, 2023, we will be making changes to how Chainguard Image tags are pulled. Please see this announcement for further details about accessing our free, public Image catalog. 

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