Chainguard Container for gradle-fips

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/gradle-fips:latest

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

Tags and FIPS specific notes

The tags are in the form of <GRADLE_VERSION>-jdk<OPENJDK_VERSION>[-dev], such that one can track 8-jdk21 for Gradle 8.x.x with OpenJDK 21.

The -dev variants contain jmods, thus suitable to use jlink.

Note, exclude bc-fips.jars /usr/share/java/bouncycastle-fips/ module-path from jlink, as jlink is unable to link signed jars. Instead ensure that --module-path=/usr/share/java/bouncycastle-fips is used at runtime, with such path copied from either this image, or jdk-fips or jre-fips images.

OpenJDK 8 is not currently supported for FIPS, thus with this image, one must target at least JDK 11 during build.

Please see specification tab for the extra variables set to ensure Gradle and Java are operating in FIPS mode.

Note, currently regression is present in gradle v8.11 which is preventing upgrades to v8.11+ builds.

Using gradle

Chainguard gradle images come with different versions of OpenJDK, ensure you choose the correct image tag for your application needs. In these examples we will use a Chainguard gradle image based on OpenJDK 11.

NOTE: if you are running Docker on Mac M1 you may experience intermittent container high CPU and container / JVM crashes. There have been reports of this behaviour and also affects non Chainguard images. It is expected that using arm based images will address the problem which is in development for Chainguard images. When running the examples below you might experince gradle builds hanging. If you do, you can docker ps and docker kill $PID and retry. This is not an ideal experience and will be improved.

Check the gradle version

 % docker run gradle-fips --version

Welcome to Gradle 8.0.1-20230224000000+0000!

Here are the highlights of this release:
 - Improvements to the Kotlin DSL
 - Fine-grained parallelism from the first build with configuration cache
 - Configurable Gradle user home cache cleanup


------------------------------------------------------------
Gradle 8.0.1-20230224000000+0000
------------------------------------------------------------

Build time:   2023-02-24 00:00:00 UTC
Revision:     68959bf76cef4d28c678f2e2085ee84e8647b77a

Kotlin:       1.8.10
Groovy:       3.0.13
Ant:          Apache Ant(TM) version 1.10.11 compiled on July 10 2021
JVM:          11.0.18-internal (wolfi 11.0.18-internal+0-wolfi-r1)
OS:           Linux 5.15.49-linuxkit aarch64

What are Chainguard Containers?

Chainguard Containers are minimal container images that are secure by default.

In many cases, the Chainguard Containers tagged as :latest contain only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager. Chainguard Containers are built with Wolfi, our Linux undistro 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 -dev variant.

Although the -dev container image variants have similar security features as their more minimal versions, they feature additional software that is typically not necessary in production environments. We recommend using multi-stage builds to leverage the -dev variants, copying application artifacts into a final minimal container that offers a reduced attack surface that won’t allow package installations or logins.

Learn More

To better understand how to work with Chainguard Containers, please visit Chainguard Academy and Chainguard Courses.

In addition to Containers, Chainguard offers VMs and Libraries. Contact Chainguard to access additional products.

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.