Fewer subscriptions.
More vibe-coding.

Open-source tools & agent skills to build the things you’re paying for.

Nebula

Project18.4K

Connect hosts across networks with certificates, group-based traffic filtering, and peer discovery.

Added 2026-10-07
Replaces
GitHub

What you can build

  • Build a tool that reads host names, Nebula IPs, and groups from CSV, validates duplicates and missing values, then outputs a roster and reviewable nebula-cert sign command lines.
  • Build a report generator that compares host certificate groups and an operator-authored service access matrix, flags mismatches, and produces a reviewable list of intended and conflicting access.
  • Build a topology checker that takes host roles, lighthouse addresses, and endpoint reachability notes, then reports missing discovery assignments and UDP/4242 connectivity checks for operators to resolve.
  • Build a package checker that reads per-host deployment folders, reports missing configuration, binary, CA certificate, host certificate, or host key files, and flags any included ca.key.
  • Build a planner that reads operator-maintained CA and host expiry dates, applies Nebula's documented default expiry relationship, and outputs a prioritized renewal calendar without accessing private keys.

Try this prompt

Build an end-to-end host enrollment planner in [language]. Read a CSV of host names, Nebula IP/subnets, and groups; validate required fields and duplicate names or addresses; then produce a reviewable host roster and nebula-cert sign command lines using the documented flags. Do not run commands, create keys, or access the network. Preserve the original input, never request or copy ca.key, and include sample input/output plus validation tests.

Get started

  1. Obtain binaries

    Use the repository’s releases or documented distribution packages to obtain the Nebula binary and nebula-cert for the platforms you will use.

  2. Prepare certificates and discovery

    Follow the README’s getting-started guide to create a certificate authority and host certificates. Keep ca.key safe and off individual nodes; plan a routable lighthouse if needed.

  3. Configure and deploy

    Start from the linked example configuration, set lighthouse options for relevant hosts, and provide each node its configuration, binary, ca.crt, host certificate, and host key.

License & notes

MITNebula is MIT-licensed and may be used commercially; retain the license notice in copies or substantial portions. A lighthouse may require a routable host and hosting resources, with costs depending on the provider and deployment. Managed Nebula is a separate service. The supplied evidence gives no pricing; no paid model or API is documented as required.

  • Operators manage the certificate authority, host credentials, configuration, and deployment; the supplied evidence does not establish a built-in fleet-management UI.
  • A lighthouse may need a routable host, and Nebula UDP traffic must reach it; hosting resources are separate.
  • The supplied documentation does not provide detailed firewall-rule syntax or a policy editor.
  • Expiry planning uses operator-provided dates; it does not inspect or renew certificates.

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