Source

Ws-hub

Go Redis Docker

ws-hub

Overview

A scalable, vendor-neutral WebSocket pooler for managing persistent connections, session state, and real-time messaging across distributed systems. Decouples connection-holding nodes from business logic via Redis Pub/Sub.

Key Features

  • Vendor-neutral Design — Business logic services connect via Redis Pub/Sub, not WebSocket directly
  • Docker Swarm Deployment — Runs across multiple replicas behind Traefik with resource-limited containers
  • JWT Authentication — Token-based auth at the connection layer before any message processing
  • Zero-downtime Rolling Updates — Traefik + Swarm rolling deploy without dropping active connections
  • Redis Pub/Sub Fan-out — Messages routed cross-replica with at-most-once delivery

Tech Stack

  • Backend: Go
  • Messaging: Redis Pub/Sub
  • Infra: Docker Swarm, Traefik
  • Auth: JWT