crossplane-function-pythonic-fips

packaged by Chainguard

Chainguard Container for crossplane-function-pythonic-fips

Crossplane Python Composition Function (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/crossplane-function-pythonic-fips:latest

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

FIPS Compliance

These FIPS-compliant images include OpenSSL FIPS provider and are built with FIPS-validated cryptographic modules. Key FIPS features include:

• FIPS-validated OpenSSL provider - Uses OpenSSL FIPS provider for cryptographic operations
• Approved algorithms only - Restricted to FIPS-approved cryptographic algorithms
• FIPS mode enforcement - Cryptographic operations automatically use FIPS-validated modules
• Enhanced SSH security - SSH configurations restricted to FIPS-approved ciphers and algorithms

Getting Started

Install the Function

Deploy the FIPS-compliant function to your Crossplane-enabled Kubernetes cluster:

apiVersion: pkg.crossplane.io/v1beta1
kind: Function
metadata:
  name: function-pythonic
spec:
  package: cgr.dev/ORGANIZATION/function-pythonic-fips:latest

Apply the function:

kubectl apply -f function.yaml

Basic Usage Example

Create a Composition that uses Python code to transform resources:

apiVersion: apiextensions.crossplane.io/v1
kind: Composition
metadata:
  name: example-pythonic
spec:
  compositeTypeRef:
    apiVersion: example.io/v1alpha1
    kind: XBucket
  mode: Pipeline
  pipeline:
  - step: pythonic-transform
    functionRef:
      name: function-pythonic
    input:
      apiVersion: pythonic.fn.crossplane.io/v1beta1
      kind: PythonicProgram
      source: Inline
      inline:
        program: |
          def main(observed, desired):
              bucket_name = observed["composite"]["spec"]["bucketName"]
              desired["resources"]["bucket"] = {
                  "apiVersion": "s3.aws.upbound.io/v1beta1",
                  "kind": "Bucket",
                  "metadata": {"name": bucket_name},
                  "spec": {"forProvider": {"region": "us-west-2"}}
              }
              return desired

Python Runtime Environment

The function runs Python 3.14 with the following SDK available:

from crossplane.function import resource
from crossplane.function import response
from crossplane.function import logging

Available Python Packages

The function includes:

• crossplane-function-sdk-python - Core SDK for interacting with Crossplane
• Standard Python 3.14 libraries
• FIPS-validated cryptographic libraries

Environment Variables

The function pod is configured with:

• TLS_SERVER_CERTS_DIR=/tls/server - TLS certificate directory
• FUNCTION_NAME - Name of the function from metadata labels
• REVISION_NAME - Revision name from metadata labels

Security Context

The function runs with the following security settings:

• User: pythonic (UID 2000)
• Group: pythonic (GID 2000)
• Non-root execution enforced
• No privilege escalation allowed
• FIPS 140-3 validated cryptography

Documentation and Resources

• Crossplane function-pythonic GitHub Repository
• Crossplane Composition Functions Documentation
• Python SDK Reference
• Composition Function Examples
• Chainguard FIPS Documentation

What are Chainguard Containers?

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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.