Rails Production Deployment

Production deployment and support for Rails apps on Ubuntu with Nginx, Puma, Docker, MySQL migrations, SSL, and troubleshooting.

Role: Software Developer / Deployment & Production Support

Location context: India

Overview

Deployment and maintenance of Ruby on Rails applications on Linux infrastructure including web servers, application servers, SSL certificates, databases, and containers.

Challenge

Enterprise Rails applications required stable production hosting, controlled migrations, and fast diagnosis when server or application issues affected users.

Approach

Hands-on deployment using Nginx reverse proxy, Puma, Docker services, Certbot SSL, Git-based workflows, and log-driven production troubleshooting.

Key contributions

Deployed and maintained Ruby on Rails applications on Ubuntu servers
Configured and troubleshot Nginx reverse proxy configurations
Managed Rails application processes using Puma
Worked with Docker-based services and application infrastructure
Configured and troubleshot SSL certificates using Let's Encrypt and Certbot
Performed production database migrations and troubleshooting
Investigated Rails production logs and server errors
Worked with Git branches, commits, merges, and deployment workflows
Diagnosed networking, firewall, port, and reverse-proxy issues

Key features

Linux server deployment
Nginx and Puma application stack
Docker container usage
SSL/TLS with Certbot
Production migrations and log analysis
Git-based deployment workflows

Technology stack

Backend: Ruby on Rails
Database: MySQL
Infrastructure: Ubuntu, Nginx, Puma, Docker, Let's Encrypt, Certbot
Other: Git, Linux shell, Rails production environment

Technical challenges

Reverse proxy and app server coordination

Problem: Misconfigured Nginx or Puma caused routing failures and downtime.

Solution: Configuration review, socket and port alignment, and log-driven fixes.

SSL and deployment failures

Problem: Certificate, environment, or migration issues could break production releases.

Solution: Certbot troubleshooting, environment checks, and controlled migration runs.

Timeline

Ongoing production support alongside feature development

Infrastructure work supporting enterprise Rails applications.

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