Lemon-miaow
0414913bc7
6-way concurrent redeem of one code 500'd on users_username_key (each request generated a fresh user id but the same uuid-derived username), plus the rarer two-codes-one-uuid race. Same drift family as VerifyLinkCode, which already locks its code row and handles the conflict. - SELECT ... FOR UPDATE the code row: same-code racers serialise; losers exit as ErrLinkCodeInvalid (400 invalid_code), no user row is attempted. - INSERT users ... ON CONFLICT (username) DO NOTHING + re-read by username: cross-code racers converge on the winner's row (role checked, staff still refused) instead of a unique-violation 500. - account_links ON CONFLICT (mc_uuid) DO NOTHING for the same race. Verified live: same-code x6 = 1x200 + 5x400; two-codes x2 = 2x200 same user; db clean; zero unmapped errors.
Felis
A Kubernetes-driven Minecraft server hosting platform — one command to deploy, automatic lifecycle, backup, and security.
一款 Kubernetes 驱动的 Minecraft 服务器托管平台，一行命令部署，自动管理生命周期与安全。
Table of Contents
Features
- Wake on Join: Servers start automatically when a player connects, and stop when idle — like hibernate for your server.
- Web Dashboard: Monitor server status, online players, and resource usage from your browser, with backup and restore management.
- Auto Backup & Restore: Scheduled world backups with one-click rollback from any backup point.
- World Reaper: Worlds idle for more than 15 days are automatically backed up and removed to free disk space.
- Multi-core Support: Compatible with Paper, Fabric, Forge, and NeoForge, federated behind a Velocity proxy.
- Modpack Submission: Players submit custom modpacks; admin approval triggers automatic build and deployment.
- Passkey Login: Passwordless authentication via fingerprint, face recognition, or hardware security keys.
- Zero Trust Security: Panel traffic protected by Cloudflare Access; the internal API is never exposed to the internet.
Getting Started
On a prepared Linux host, run:
curl -fsSL https://raw.githubusercontent.com/MliroLirrorsIngenuity/Felis/main/deploy/bootstrap.sh | sudo bash
The script installs K3s, deploys the control plane, and launches a setup wizard. Once done, open your browser at the configured domain.
Build from Source
Felis is built with Go and Node.js:
# Backend (Go 1.26+)
go build -o felis ./cmd/felis
# Frontend (Node.js 22+)
cd panel
npm ci
npm run build
# Docker image
docker build -t felis:custom .
License
The source code is released under AGPL-3.0-only.
License Notes
- Derivative works are AGPL too: Any distribution of this project or of software derived from it must be released under AGPL-3.0 and must include the original copyright notice and license statement.
- Running it as a network service also triggers the source obligation (AGPL section 13): if you host a modified Felis for other people to use, you must offer those users the complete source of your modified version — even if you never distribute a binary. This is the one substantive difference between AGPL and GPL, and since Felis is a hosting platform reached over a network, it will essentially always apply.
- Disclaimer: This project is provided "as is", without warranty of any kind.
Acknowledgements
- Kubernetes: Container orchestration engine
- K3s: Lightweight Kubernetes distribution
- Cloudflare Zero Trust: Zero trust security infrastructure
- PostgreSQL: Data persistence
- React: User interface framework
- Vite: Frontend build tool
- TailwindCSS: CSS framework
- Bubble Tea: TUI framework
- Minecraft: What makes this all worthwhile