Deployments are attempts to build and deliver your service.

All deployments will appear in the deployments view on your selected service.

Screenshot of Deploy View

How it Works

Upon service creation, or when changes are detected in the service source, Railway will build the service and package it into a container. (If the source is a Docker Image, the build step is skipped.) Railway then starts the service using either the detected or configured Start Command.

This cycle represents a deployment in Railway.

Deployment States

Deployments can be in any of the following states.


Every Deployment in Railway begins as Initializing - once it has been accepted into our build queue, the status will change to Building.


While a Deployment is Building, Railway will attempt to create a deployable Docker image containing your code and configuration (see Builds).


Once the build succeeds, Railway will attempt to deploy your image and the Deployment's status becomes Deploying. If a healthcheck is configured, Railway will wait for it to succeed before proceeding to the next step.


If an error occurs during the build or deploy process, the Deployment will stop and the status will become Failed.


Once the Deployment is live and running, the status will change to Success.


A Deployment will remain in the Success state unless it crashes, at which point it will become Crashed.


When a new Deployment is triggered, older deploys in a Crashed and Success state are eventually removed - first having their status updated to Removing before they are finally Removed. Deployments may also be removed manually.

Ephermal Storage

Every service deployment has access to 10GB of ephemeral storage. If a service deployment consumes more than 10GB, it can be forcefully stopped and redeployed.

If your service requires data to persist between deployments, or needs more than 10GB of storage, you should add a volume.

Singleton Deploys

By default, Railway maintains only one deploy per service.


For information on how to manage your deployments, explore the guides in this section.

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