Traefik

Open-source reverse proxy and load balancer built for microservices. Discovers services automatically from your infrastructure, routes incoming requests, and updates configuration in real time without restarts or connection drops.

Adopted by enterprises and used across hybrid cloud, multi-cloud, on-premises, and bare metal. Unlike static proxies that require restarts on config changes, Traefik watches orchestrator APIs and infrastructure to apply routing updates dynamically. Default ingress in Nutanix Kubernetes Platform and integrates with HashiCorp, Microsoft, and Oracle stacks.

Key capabilities:

• Automatic service discovery from Kubernetes, Docker Swarm, Consul, and many other providers
• Declarative, GitOps-friendly configuration via labels, annotations, or static YAML/TOML
• Built-in TLS termination with automatic certificate provisioning via Let's Encrypt
• Middleware for rate limiting, retries, redirects, authentication, and request modification
• Advanced load balancing with canary, blue-green, and weighted strategies

Platform teams use it as a Kubernetes ingress controller or Docker Swarm routing layer. Developers appreciate the dynamic configuration: deploy a new service and Traefik picks it up without extra steps. Integrates with observability stacks for metrics and tracing.