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Big Bang Blog

Product updates, technical guidance, and stories from the Big Bang community.

  • 5 min read

Istio Ambient Mesh in Big Bang: From Beta to GA

Update: Istio Ambient Mesh reached General Availability in Big Bang 3.32. It remains opt-in throughout Big Bang 3.x and becomes the default Istio configuration in Big Bang 4.0. Users are encouraged to begin migrating and validating their mission environments before the 4.0 upgrade.

  • 3 min read

New Methodology for images.txt, package-images.yaml, oci_package_list.txt, and Others

BLUF (Bottom Line Up Front)

  1. Big Bang image metadata now comes from explicit declarations (no more cluster scraping)
  2. New images-v2-* artifacts show the dependency graph so you can pre-pull or allowlist exactly what you need—no Istio/Kyverno/Flux noise unless they are actual dependencies.
  3. images.txt is now a copy of images-v2-with-dependencies.txt (which uses the explicit declarations)
  4. The smoke tests stage and its jobs (clean install all-packages and clean install oci all-packages) have been eliminated from the Big Bang release pipeline since each package is tested individually as part of the individual package pipeline.
  5. The Big Bang release pipeline now completes in around 20 minutes rather than multiple hours, saving the release engineers considerable time on every release.
  • 5 min read

Streamlining Integration with bb-common

Setting the stage

Big Bang has always aimed to deliver a secure, ready-to-use Kubernetes platform for the Department of War. But as the ecosystem has grown and new packages have been added, one area has become a constant source of friction: network policies.

Until now, each Big Bang package tended to define its own policies in slightly different ways. The result? Inconsistency, duplication, and confusion — both for contributors and for engineers trying to consume Big Bang downstream.

  • 5 min read

Big Bang 3.0 💥

The countdown is on! Big Bang 3.0 is on track for release on June 13, 2025. This marks the next major release since version 2.0 in April 2023, and the Big Bang team has been working diligently to deliver a platform that’s secure, feature-rich, and ready for your most critical missions. The Big Bang universe is ever-expanding, read on to learn more!

  • 3 min read

Simplifying Kubernetes Management with Headlamp (and the Flux Plugin)

Kubernetes has become the go-to orchestration system for containerized applications, but managing it isn’t always user-friendly. Command-line tools like kubectl are powerful, but not ideal for everyone especially for those who prefer visual insights or need to onboard new team members. This is where Headlamp comes into play.

In this post, we’ll break down what Headlamp is, how it’s used, highlight its top features, and dive into its Flux plugin for GitOps integration.

  • 3 min read

Big Bang 3.0 - Operatorless Istio Migration

It has been nearly two years since the Big Bang 2.0 release, and the project has grown significantly in that time. The Big Bang engineering team is proud of the product that we have built alongside our growing community. Your support and feedback have been essential in shaping the platform your missions rely on.

In line with our mission-first principles, we want to share updates on the direction of Big Bang and what it means for you as Big Bang operators.