Minimus Container Images Now Available on Iron Bank: Accelerating FedRAMP Compliance

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Minimus
July 22, 2025
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We’re excited to announce that Minimus secure container images are now publicly available on Iron Bank, the U.S. Department of Defense's repository of digitally signed, hardened container images. This significant milestone ensures federal agencies, contractors, and systems integrators can effortlessly achieve and maintain compliance, streamline security operations, and significantly reduce their vulnerability exposure.

Minimus Meets Iron Bank’s Stringent Security Requirements

Containers submitted to Iron Bank undergo detailed scanning and evaluation based on the Iron Bank Acceptance Baseline Criteria (ABC). Each container is assessed for compliance and assigned an Overall Risk Assessment (ORA) score.

Key requirements include ensuring an internet-disconnected build process, continuous monitoring every 12 hours with timely justification for new findings, and prompt submission of application updates. Only images meeting these stringent criteria and achieving a strong security posture are approved for publication.

Minimus images meet Iron Bank’s stringent acceptance baseline criteria, bringing FIPS-ready security, built-in SBOM (Software Bill of Materials) integration, and a dramatically smaller attack surface—helping teams fast-track their path to FedRAMP compliance.

Key Features of Minimus Iron Bank Images

The Minimus PHP image passed all Iron Bank VAT checks, with 100% of vulnerabilities verified and remediated.
  • Rigorous Validation: Fully compliant with Iron Bank’s stringent baseline security standards.
  • FIPS-Ready: FIPS-ready images with CMVP validation certificates covering OpenSSL, Java, and GoLang crypto implementations.
  • Integrated SBOM: Each image includes a comprehensive, signed Software Bill of Materials.
  • Reduced Vulnerabilities: Minimalist design dramatically reduces vulnerabilities by over 95%.
  • OCI Compliant: Ready for seamless integration into existing DevSecOps workflows and tools.
  • Compliant by default app configuration covering STIG, CIS, and NIST SP 800-190 recommendations

Getting Started with Minimus on Iron Bank:

Follow these straightforward steps to leverage Minimus container images through Iron Bank:

  1. Browse: Visit the Iron Bank repository at https://ironbank.dso.mil/ and search for "Minimus" to explore available images. If you don’t have a PlatformOne account, you’ll need to create one.
  2. Pull: Use Iron Bank’s commands (e.g., docker pull registry1.dso.mil/ironbank/minimus/reg.mini.dev/[image-name]) to deploy secure, minimal, continuously updated container images.
  3. Integrate: Seamlessly incorporate Minimus images into your existing DevSecOps pipelines using tools such as Kubernetes, Helm, Jenkins, or GitLab CI/CD.
  4. Validate: Quickly demonstrate compliance and reduced risk by reviewing the included Software Bill of Materials (SBOM) and ensuring configurations align with FedRAMP standards. You can browse Minimus’ VAT results at https://vat.dso.mil/vat.
Verified vulnerability findings for the Minimus BusyBox image in Iron Bank VAT, demonstrating secure, compliant packaging for defense and regulated environments.

Fast-Track ATO and Streamline Compliance With Minimus

Minimus enables security, compliance, and operations teams to efficiently achieve an Authority to Operate (ATO) and adhere to security best practices by significantly reducing vulnerabilities at the outset. By using Minimus images from Iron Bank, organizations streamline their path to compliance, dramatically cut remediation workloads, and focus valuable resources on proactive security measures. 

Request a demo today and experience firsthand how Minimus simplifies achieving and maintaining security standards, expedites compliance efforts, and reduces operational complexity.

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