DevOps & Post-Deployment

Everything a senior developer needs to know about shipping, running, and operating code in production.

36Lessons
9Modules
9Reference docs
Module 1
Foundations — How Production Works
What happens between git push and a user seeing your page?
01The Production Mental Model~20 min 02Linux & SSH Essentials~25 min 03DNS — How Domains Actually Work~20 min 04HTTPS & TLS — Why and How~20 min
Module 2
Docker — Package Your App
Solve "it works on my machine" forever.
05Docker Core Concepts~25 min 06Writing Dockerfiles~30 min 07Docker Compose — Multi-Container Apps~30 min 08Docker in Production~25 min
Module 3
Nginx — The Traffic Controller
The gateway between the internet and your app.
09Nginx as a Reverse Proxy~25 min 10SSL Termination with Let's Encrypt~20 min 11Nginx Performance & Security~25 min
Module 4
AWS — Ship to the Cloud
From localhost to the real internet.
12AWS Account Setup & IAM~25 min 13EC2 — Your First Server~30 min 14S3 + CloudFront — Static Hosting~25 min 15Route 53 — Custom Domains~20 min 16RDS & Secrets Manager~25 min
Module 5
Redis & RabbitMQ — Production Infrastructure
The invisible workhorses behind every serious web app.
17Redis — Caching, Sessions & Beyond~30 min 18Redis Pub/Sub & Real-Time Patterns~25 min 19RabbitMQ — Async Jobs & Message Queues~30 min 20Redis + RabbitMQ in Docker Compose~30 min
Module 6
CI/CD — Automate Everything
Never deploy manually again.
21GitHub Actions — Your First Pipeline~25 min 22Build & Deploy Pipeline~30 min 23Advanced Actions Patterns~25 min 24Preview Deployments & Branch Strategy~20 min
Module 7
Cloudflare, SEO & Analytics
Make your site fast, secure, and discoverable.
25Cloudflare — DNS, CDN & Security~25 min 26Technical SEO for Developers~25 min 27Core Web Vitals & Performance~25 min 28Google Search Console~20 min 29Google Analytics 4~25 min
Module 8
Monitoring & Operations
Know when things break before your users do.
30Logging in Production~25 min 31Error Tracking with Sentry~25 min 32Uptime Monitoring & Alerting~20 min
Module 9
Security & Reliability
The stuff that gets you fired if you skip it.
33Production Security Essentials~30 min 34Backups & Rollback Strategies~25 min 35Transactional Email~20 min 36The Senior Dev ChecklistCapstone

Reference Documents

RefGlossaryAll terms defined DockDocker Cheat SheetCommands & patterns NginxNginx Cheat SheetConfig reference AWSAWS Services MapWhat each service does DataRedis & RabbitMQ Cheat SheetCommands & patterns CI/CDGitHub Actions Cheat SheetWorkflow syntax SEOSEO ChecklistPre-launch & ongoing SecSecurity ChecklistOWASP & hardening LaunchProduction Launch ChecklistThe complete list