How do I deploy Mattermost on Railway?

You can deploy Mattermost on Railway by clicking the "Deploy Now" button on this page. Railway will automatically set up all the necessary services and configurations for you.

What are the system requirements?

Railway handles all the infrastructure requirements. You only need a web browser to deploy and manage your application.

Is this template free to use?

Yes, this template is free to use within your existing Railway account.

Can I customize this template?

Yes, you can fully customize this template. After deployment, you will have full control of what you've deployed in your Railway project.

How do I get support for this template?

You can get support through our community forum: mattermost-fa6526be, or click "Get template help" for this template for more assistance.

Deploy and Host Mattermost on Railway

Mattermost is an open-source, self-hosted team messaging and collaboration platform. It provides chat channels, direct messages, file sharing, and integrations as a privacy-first alternative to Slack and Microsoft Teams.

About Hosting Mattermost

Hosting Mattermost requires a persistent application server and a relational database. The app server handles HTTP connections, WebSocket push notifications, file uploads, and plugin execution. A PostgreSQL database stores all messages, users, and configuration. Data written to the server (attachments, custom emoji, plugins) must be stored on a persistent volume so it survives redeployments. Mattermost exposes a health endpoint at /api/v4/system/ping that Railway uses to confirm the service is ready before routing traffic.

Common Use Cases

Internal team communication and channels for engineering or ops teams
Self-hosted Slack replacement for organizations with strict data-residency requirements
Incident-response coordination hub with bots and webhook integrations
Development collaboration platform with GitLab/GitHub/Jira integrations
Secure messaging for regulated industries (healthcare, finance, government)

Dependencies for Mattermost Hosting

PostgreSQL database (Railway-managed Postgres service)
Persistent volume mounted at /mattermost/data

Deployment Dependencies

Docker image: mattermost/mattermost-team-edition on Docker Hub
Mattermost configuration reference: https://docs.mattermost.com/configure/configuration-settings.html
Mattermost self-hosted install guide: https://docs.mattermost.com/guides/deployment.html

Implementation Details

The template deploys the official mattermost/mattermost-team-edition Docker image. All configuration is passed via environment variables prefixed with MM_ (Mattermost's standard env-var config mechanism). The Railway-managed Postgres service connection string is injected automatically via ${{Postgres.DATABASE_URL}}. After the first deploy, update MM_SERVICESETTINGS_SITEURL to your assigned Railway domain so that invite links, email notifications, and OAuth redirects work correctly.

Why Deploy Mattermost on Railway?

Railway is a singular platform to deploy your infrastructure stack. Railway will host your infrastructure so you don't have to deal with configuration, while allowing you to vertically and horizontally scale it.

By deploying Mattermost on Railway, you are one step closer to supporting a complete full-stack application with minimal burden. Host your servers, databases, AI agents, and more on Railway.