How to Self-Host Rocket.Chat with Docker Compose

What Is Rocket.Chat? Rocket.Chat is a self-hosted team messaging platform with channels, threads, direct messages, video conferencing, end-to-end encryption, and a massive integrations ecosystem. It replaces Slack, Microsoft Teams, and Discord for organizations that want full control over their communication data. The Community Edition is open source and free to self-host. Rocket.Chat supports omnichannel features (live chat for customer support), over 200 marketplace apps, and federation between instances. GitHub Updated March 2026: Verified with latest Docker images and configurations. Prerequisites A Linux server (Ubuntu 22.04+ recommended) Docker and Docker Compose installed ( guide ) 2 GB of free RAM (minimum — 4 GB+ recommended for 50+ users) 10 GB of free disk space (plus storage for file uploads) A domain name (required for production use and mobile app connectivity) Docker Compose Configuration Rocket.Chat 8.x requires MongoDB running as a replica set — even for single-node de