Ultimate Deployment

A skill for managing Railway application deployments — listing active deployments, viewing logs, redeploying services, and safely removing deployments. Ultimate Deployment focuses on day-to-day operations rather than initial setup, helping you monitor and maintain running Railway services.

When to Use This Skill

Choose Ultimate Deployment when:

• Checking the status of running Railway deployments
• Viewing deployment logs to debug issues in production
• Triggering a redeployment after configuration changes
• Removing a deployment while preserving the project and service configuration

Consider alternatives when:

• Setting up a new Railway project from scratch (use initial setup guides)
• Configuring build pipelines and Dockerfiles (use build configuration tools)
• Managing database plugins specifically (use a database management skill)

Quick Start

Copy
claude "Show me my current Railway deployments and their status"

Copy
# List all services and their deployment status
railway status

# View logs for the current service
railway logs

# View logs with tail (follow mode)
railway logs --tail

# Redeploy the current service
railway up

# Remove the current deployment (keeps project/service config)
railway down

Core Concepts

Deployment Lifecycle

State	Description	Action Available
Building	Source is being compiled	Cancel
Deploying	Container is starting	Cancel
Active	Running and serving traffic	Logs, Redeploy, Remove
Failed	Deployment crashed	Logs, Redeploy, Rollback
Removed	Stopped but config preserved	Redeploy

Log Analysis

Copy
# Recent logs (last 100 lines)
railway logs

# Follow logs in real-time
railway logs --tail

# Filter logs by deployment ID
railway logs --deployment <deployment-id>

# Search logs for errors
railway logs | grep -i "error\|exception\|fatal"

Redeployment vs Removal

Copy
# Redeployment: Build and deploy latest code
# - Triggers a new build from the connected branch
# - Old deployment is replaced when new one is healthy
railway up

# Removal: Stop the current deployment
# - Service configuration and variables are preserved
# - Domain routing stops (returns 502)
# - Project and service remain in Railway dashboard
railway down

# IMPORTANT: "railway down" does NOT delete the project
# It only stops the active deployment

Configuration

Parameter	Description	Default
log_lines	Number of recent log lines to display	100
follow_logs	Stream logs in real-time	false
auto_redeploy	Redeploy on Git push	true (if repo connected)
deployment_timeout	Max seconds for deployment to become healthy	300
rollback_on_failure	Auto-rollback if health check fails	false

Best Practices

1. Check logs before redeploying. When a deployment is failing, redeploying the same code won't fix it. Read railway logs to identify the root cause — it might be a missing environment variable, a database connection issue, or an application error unrelated to the deployment process.

2. Use railway down carefully. Removing a deployment stops serving traffic immediately. There's no gradual drain — active requests may be interrupted. Use this during maintenance windows, not during peak traffic.

3. Monitor deployment health after each push. Enable auto-deploy on Git push, but watch the deployment status for the first few minutes. Check railway status to verify the new deployment is healthy before moving on.

4. Keep deployment history for rollback. Railway maintains deployment history, allowing you to redeploy a previous version if the latest release has issues. Identify the last known good deployment from the dashboard.

5. Set up alerts for deployment failures. Relying on manual log checking doesn't scale. Configure Railway webhooks or integrate with a monitoring service to get notified when deployments fail or health checks start failing.

Common Issues

Deployment stuck in "Building" state. Large build contexts (node_modules, build artifacts) slow down builds. Add a .railwayignore file (similar to .dockerignore) to exclude unnecessary files. Also check if the build command is hanging — infinite loops in build scripts will never complete.

Service shows "Active" but returns errors. The container is running but the application is crashing and restarting. Check railway logs --tail for crash loops — look for patterns like "listening on port" followed immediately by "error" or "exit." Common causes: unhandled promise rejections, missing required environment variables.

railway down doesn't free resources. The service configuration remains in your project and may still count toward plan limits. To fully remove a service, delete it from the Railway dashboard. railway down is for stopping deployments, not cleaning up unused services.