How do I deploy Patroni (PostgreSQL High Availability) on Railway?

You can deploy Patroni (PostgreSQL High Availability) 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: patroni-6fe2f5f1, or click "Get template help" for this template for more assistance.

Deploy and Host Patroni on Railway

Patroni is an open-source tool for managing highly available PostgreSQL clusters. It handles automatic failover, leader election, and streaming replication using a distributed configuration store (etcd), ensuring your database stays online even when nodes fail.

About Hosting Patroni

Hosting Patroni requires orchestrating multiple components: a distributed configuration store (etcd cluster) for leader election and cluster state, multiple PostgreSQL instances managed by Patroni agents, and a load balancer to route traffic to the correct primary/replica nodes. This template automates the entire setup with 3 etcd nodes for consensus, 2 PostgreSQL/Patroni nodes for data redundancy, and HAProxy for intelligent connection routing. All services communicate securely via Railway's private network.

Common Use Cases

Production databases requiring zero downtime - automatic failover within 30 seconds
Read-heavy applications - load balance reads across replicas while writes go to primary
Multi-region deployments - maintain database availability during node or zone failures

Dependencies for Patroni Hosting

etcd - Distributed key-value store for cluster consensus and leader election
HAProxy - Load balancer for routing PostgreSQL connections

Deployment Dependencies

Implementation Details

Connection endpoints after deployment:

Primary (read-write) postgresql://postgres:[email protected]:5432/postgres

Replica (read-only, load balanced) postgresql://postgres:[email protected]:5433/postgres

Check cluster status via HAProxy stats dashboard on port 8404.

Why Deploy Patroni 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 Patroni 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.