This is an sample project to showcase different aspects of a microservices architecture with an example of a real-world application. The application under this context is an URL shortener and a HTTP redirector system. Just like a regular crystal refracts or in some sense redirects light (as Wikipedia says, in physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium), this software Krystal shortens an URL and redirects HTTP requests for the shortened web resources to their original sources.
- HTTP redirection fundamentals
- System overview
- Microservices and API design
- Database design and ORM
- Frontend design and UI layout
- Auditing: Audit log storage and management using immutable database such as immudb
- Availability: Clustering and high-availability of backend services in Docker Swarm and Kubernetes
- Error handling: Centeralized error handling, management and notification
- Fault tolerance: Fault tolerance using container orchestrators
- Scaling: Scaling frontend and backend services using Docker and Kubernetes
- CI/CD: Continous integration and continous deployment using GitHub Actions
- DevOps: Provisioning Docker Swarm or Kubernetes cluster infrastructure using Terraform and configuration management using Ansible
- Deployment: Deploying frondend and backend services into Docker Swarm and Kubernetes
- Logging: Infrastructure and application logging using ElasticSearch, LogStash and Kibana
- Caching: Distributed caching using Redis
- Configuration: Configuration management and service discoverability using Consul
- Monitoring: Monitoring services using Prometheus and Grafana
- Packaging: Packaging frontend and backend services using Docker containers
- Security: Authentication and authorization with IdentityServer and JWT tokens
- Telemetry: Distributed tracing using OpenTelemetry and Zipkin