Deploy OpenClaw on Hostinger VPS: Complete Setup

Step 6: Build and Start OpenClaw with Docker Compose

The Docker Compose configuration in the repository includes PostgreSQL (for persistent indexing data), Redis (for caching), and the OpenClaw application. Start all services:

cd /opt/openclaw && docker-compose up -d

This command downloads base images and builds containers in the background. Check initialization progress:

docker-compose logs -f openclaw

Watch for the log message indicating the application is listening (e.g., "Server running on port 3000"). Press Ctrl+C to exit the logs view.

Step 7: Verify Installation

Test that OpenClaw is responding by querying the health endpoint from your VPS:

curl http://localhost:3000/health

A successful response returns a JSON object with status information:

{"status":"healthy","version":"0.2.0","uptime":1234}

If you have a domain, configure a reverse proxy (Nginx) to serve OpenClaw on port 80/443 with SSL. Otherwise, access via http://YOUR_VPS_IP:3000.

Step 8: Initialize the AI Ecosystem Index

On first launch, OpenClaw needs to crawl and index open-source AI repositories. Access the admin dashboard:

http://YOUR_VPS_IP:3000/admin

Log in with the default credentials (see .env or documentation for username/password setup). Navigate to "Indexing" and click "Start Full Crawl." This process may take 10-30 minutes depending on network speed and the scope of repositories to index.

Monitor progress in the dashboard or via logs:

docker-compose logs -f openclaw | grep -i "index\|crawl"

Step 9: Perform Your First Query

Once indexing completes, test the search API:

curl "http://YOUR_VPS_IP:3000/api/search?q=tensorflow&type=framework"

The response includes indexed models, tools, and libraries matching your query. Explore the OpenClaw API documentation at http://YOUR_VPS_IP:3000/docs to discover additional endpoints (filtering by license, stars, recent updates, etc.).

Troubleshooting Common Issues

Container fails to start

Check container logs for error messages:

docker-compose logs openclaw | tail -50

Common causes: insufficient disk space, port 3000 already in use, or database connection failures. If port 3000 is in use, modify docker-compose.yml to bind a different port (e.g., 8000).

Database connection refused

Ensure the PostgreSQL container is running:

docker-compose ps

All services should show "Up". If the database container is not running, restart the entire stack:

docker-compose restart

Wait 15 seconds for the database to become ready before OpenClaw connects.

High memory or CPU usage

During initial indexing, CPU and memory usage peaks. If issues persist after indexing completes, check for resource-intensive queries in logs and consider upgrading your VPS plan. For production environments with high query volume, allocate at least 4GB RAM.

SSL/HTTPS not working

If you've set up a reverse proxy with Certbot for SSL, verify the certificate is valid:

certbot certificates

Renew if near expiration. Restart Nginx after any certificate changes:

systemctl restart nginx

Best Practices for Production Deployment

Use a reverse proxy

Deploy Nginx in front of OpenClaw to handle SSL termination, rate limiting, and load balancing. This isolates your application and improves security.

Enable automated backups

Schedule daily PostgreSQL backups to an external storage service (e.g., AWS S3). Use the following cron job:

0 2 * * * /usr/local/bin/backup-openclaw.sh >> /var/log/openclaw-backup.log 2>&1

Monitor system metrics

Install Prometheus and Grafana to track CPU, memory, disk I/O, and application-level metrics. Most VPS providers offer basic monitoring dashboards—use them to trigger alerts if resource usage exceeds thresholds.

Keep dependencies updated

Regularly pull the latest OpenClaw updates and rebuild containers:

cd /opt/openclaw && git pull && docker-compose up -d --build

For production, test updates on a staging environment first.

Implement access control

Restrict API access to trusted IP ranges and enforce authentication for sensitive endpoints (admin, write operations). OpenClaw supports API keys and JWT tokens.

Set resource limits

In docker-compose.yml, define memory and CPU limits for each container to prevent runaway processes from crashing your VPS:

services:
  openclaw:
    resources:
      limits:
        cpus: '1'
        memory: 1024M

Next Steps

With OpenClaw running, explore advanced configurations:

• Customize crawl sources: configuring-custom-ai-repositories — add private GitHub organizations or GitLab instances to your index.
• Integrate with CI/CD: Automate index updates when new AI tools are released using webhooks.
• Build a frontend: Query the OpenClaw API to power a custom UI for your team's AI toolkit discovery.
• Join the community: Contribute improvements to the OpenClaw project on GitHub; the ecosystem benefits from broader indexing coverage.
• Scale horizontally: Deploy multiple OpenClaw instances behind a load balancer for high-traffic scenarios.

Summary

You've successfully deployed OpenClaw on a Hostinger VPS and indexed the open-source AI ecosystem. Your instance is now searchable and queryable—whether you're discovering new models, tracking library versions, or building a centralized AI toolkit registry for your organization. Regular monitoring, backups, and security updates ensure your index remains reliable and current.

OpenClaw's modular design supports deep customization; as your needs evolve, you can extend authentication, add custom indexing rules, or integrate with internal tools. The tutorials in our knowledge base explore these advanced scenarios.