CDN, caching, Docker, Kubernetes

CDN, caching, Docker and Kubernetes in online casino infrastructure

For an online casino to work quickly, reliably and ready for loads, a modern DevOps infrastructure is needed. Technologies such as CDN, caching, containerization (Docker) and orchestration (Kubernetes) allow for high availability, faster response and easier scaling. Below - how it is implemented and why all this is needed.

CDN (Content Delivery Network)

Why do I need a CDN:

• Accelerates site and WebApp downloads for players worldwide
• Reduces the load on the primary server
• Improves high traffic stability
• Can protect against DDoS

Popular solutions:

• Cloudflare
• Bunny CDN
• AWS CloudFront
• Fastly

Casino Application:

• Static distribution (JS, CSS, images, banners)
• Caching pages with bonuses, landing pages
• HTTPS and WAF (firewall) support

Caching

What is cached:

• Game statistics and account data
• Bonus and stock configurations
• Frequently called API responses (e.g. provider list)

Technologies:

• Redis (in memory, for speed)
• Varnish (caching HTTP responses)
• Memcached (alternative to Redis)

Result:

• Quick responses for players
• Reduce database load
• Improved scalability

Docker: Casino containerization

What Docker gives:

• Packaging of components in insulated containers
• Convenient deploy: the same code works everywhere
• Easily scale and manage constraints
• Ability to deploy dev/stage/prod environments

Examples of containers:

• `auth-service`, `game-service`, `payment-gateway`
• `frontend`, `admin-panel`, `postgres-db`, `redis-cache`

Kubernetes: Production-level orchestration

Why Kubernetes is needed:

• Managing a large number of Docker containers
• Automatic Scaling (HPA)
• Self-healing (if the service is down - it restarts)
• Load balancing between nodes
• Updates without downtime (rolling updates)

Where to launch:

• AWS EKS
• Google GKE
• Hetzner with RKE or k3s
• DigitalOcean Kubernetes

Combined architecture

Component	Technology
Static	CDN (Cloudflare, Bunny)
Sessions and Cache	Redis, Memcached
Containerization	Docker
Orchestration	Kubernetes + Helm + Ingress NGINX
Monitoring	Prometheus + Grafana
CI/CD	GitHub Actions / GitLab CI

Results of use

Up to 50-70% responsiveness
Increased fault tolerance
Ability to deposit updates without stopping games
Flexible scaling during peak hours
Easy connection of new modules, games, providers

CDN, caching, Docker and Kubernetes are the backbone of the modern online casino tech platform. These technologies allow you to run a stable, fast and scalable product, ready for millions of users, many games and flexible infrastructure. This is not just "fashionable" - it is a quality standard for a reliable casino platform.