# traefik | Traefik Labs | Knowledge Base | Instagit

The Cloud Native Application Proxy

GitHub Stars: 62k

Repository: https://github.com/traefik/traefik

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## Articles

### [Traefik v2 to v3 Migration: Key Changes and Step-by-Step Guide](/traefik/traefik/traefik-v2-to-v3-migration-configuration)

Migrate Traefik v2 to v3 with zero downtime. Explore key changes in router rules and static configuration plus a step-by-step guide with backward-compatibility mode.

- Tags: migration-guide
- Published: 2026-03-05

### [Traefik Sticky Sessions: How to Configure Cookie-Based Load Balancing](/traefik/traefik/traefik-sticky-sessions-cookie-load-balancing)

Traefik supports sticky sessions enabling cookie based load balancing. Configure Traefik's SHA-256 hashed handler cookies to bind client requests to specific backend servers.

- Tags: how-to-guide
- Published: 2026-03-05

### [Traefik Entry Points and Routing Priority: A Complete Configuration Guide](/traefik/traefik/traefik-entry-points-routing-priority)

Learn how to configure Traefik entry points and understand routing priority. Discover how explicit or automatic settings dictate request handling.

- Tags: how-to-guide
- Published: 2026-03-05

### [How Traefik's Retry Mechanism Works: Complete Configuration Guide](/traefik/traefik/traefik-retry-mechanism-configuration)

Discover how Traefik's retry middleware automatically re-executes failed requests with exponential backoff and safe retry configurations. Optimize your Traefik setup today.

- Tags: how-to-guide
- Published: 2026-03-05

### [How to Secure the Traefik API and Dashboard Using Authentication Middleware](/traefik/traefik/traefik-api-dashboard-authentication)

Secure your Traefik API and dashboard with authentication middleware like BasicAuth DigestAuth or ForwardAuth. Learn how to protect your internal services and disable insecure access in production.

- Tags: how-to-guide
- Published: 2026-03-05

### [Comparing Traefik Providers: Docker, Kubernetes, Consul, Etcd, and File](/traefik/traefik/traefik-providers-comparison-docker-kubernetes-consul)

Compare Traefik providers Docker, Kubernetes, Consul, Etcd, and File. Discover how each enables service discovery without restarts by translating infrastructure data.

- Tags: comparison
- Published: 2026-03-05

### [How to Configure Distributed Tracing with OpenTelemetry in Traefik](/traefik/traefik/traefik-opentelemetry-tracing-configuration)

Configure distributed tracing with OpenTelemetry in Traefik. Learn how to set up automatic request instrumentation and export spans to an OpenTelemetry Collector effortlessly.

- Tags: how-to-guide
- Published: 2026-03-05

### [How Traefik Implements Graceful Shutdown and Connection Draining](/traefik/traefik/traefik-graceful-shutdown-connection-draining)

Learn how Traefik implements graceful shutdown and connection draining. Discover its context-driven stop sequence, active connection tracking, and timeout mechanisms to ensure smooth updates and restarts.

- Tags: internals
- Published: 2026-03-05

### [How to Use Traefik Plugins and Build Custom Providers: A Complete Guide](/traefik/traefik/traefik-plugins-custom-providers)

Learn to use Traefik plugins and build custom providers. Discover how to declare plugins and implement custom provider interfaces for advanced Traefik configurations. Unlock powerful routing capabilities today.

- Tags: how-to-guide
- Published: 2026-03-05

### [SPIFFE Integration in Traefik: A Complete Guide to Workload Identity](/traefik/traefik/traefik-spiffe-integration-setup)

Integrate SPIFFE with Traefik for automatic mTLS. This guide shows how to leverage SPIFFE workload identity and X.509 certificates for secure backend communication, eliminating manual certificate management.

- Tags: deep-dive
- Published: 2026-03-05

### [How to Customize Traefik Access Log Formats: JSON, CLF, and Common Log Options](/traefik/traefik/traefik-access-logs-custom-formatting)

Customize Traefik access log formats to JSON, CLF, or Common Log. Control your log output easily with Traefik's static configuration for better visibility and analysis.

- Tags: how-to-guide
- Published: 2026-03-05

### [How Traefik Performs TLS/SSL Passthrough for TCP-Based Services](/traefik/traefik/traefik-tls-ssl-passthrough-tcp)

Learn how Traefik performs TLS SSL passthrough for TCP services. Discover its TCPTLS muxer and SNI matching for direct encrypted stream routing to backends without TLS termination.

- Tags: deep-dive
- Published: 2026-03-05

### [How to Configure Traefik for UDP Traffic and EntryPoints: A Complete Guide](/traefik/traefik/traefik-udp-entry-point-configuration)

Learn how to configure Traefik for UDP traffic and entry points. Master UDP routing and services with our comprehensive guide.

- Tags: how-to-guide
- Published: 2026-03-05

### [Traefik Certificate Resolvers: ACME and Tailscale Types Explained](/traefik/traefik/traefik-certificate-resolvers-functionality)

Explore Traefik certificate resolvers like ACME and Tailscale. Automate TLS certificate acquisition and renewal for public and private networks with these powerful tools.

- Tags: deep-dive
- Published: 2026-03-05

### [How to Implement Rate Limiting and Circuit Breakers in Traefik: A Complete Guide](/traefik/traefik/traefik-rate-limiting-circuit-breakers)

Master Traefik rate limiting and circuit breakers. Protect services from traffic spikes and failures with native middlewares. Learn configuration essentials now.

- Tags: how-to-guide
- Published: 2026-03-05

### [How Traefik Discovers and Manages Services in Docker Swarm](/traefik/traefik/traefik-docker-swarm-service-discovery)

Discover how Traefik leverages its Swarm provider to poll Docker Engine API, automatically discovering and managing services in Docker Swarm for dynamic routing.

- Tags: deep-dive
- Published: 2026-03-05

### [How to Enable and Configure Prometheus Metrics Export in Traefik](/traefik/traefik/traefik-prometheus-metrics-configuration)

Enable Prometheus metrics in Traefik easily. Configure a dedicated endpoint for Prometheus scraping and gain valuable insights into your Traefik proxy's performance. Learn how now.

- Tags: how-to-guide
- Published: 2026-03-05

### [Traefik HTTP vs TCP Routing: Key Differences and Configuration Guide](/traefik/traefik/traefik-http-vs-tcp-routing)

Understand Traefik HTTP vs TCP routing differences. Learn how Traefik prioritizes TCP over HTTP on shared entry points and configure routing effectively. Get the guide now.

- Tags: how-to-guide
- Published: 2026-03-05

### [How to Configure Health Checks for Backend Services Managed by Traefik](/traefik/traefik/traefik-backend-health-check-configuration)

Learn how to configure health checks for Traefik backend services. Actively probe your servers via HTTP or gRPC to ensure high availability and seamless traffic management.

- Tags: how-to-guide
- Published: 2026-03-05

### [How Traefik's Middleware Chaining Works and Execution Order for Requests](/traefik/traefik/traefik-middleware-chaining-execution-order)

Understand Traefik middleware chaining and request execution order. Learn how Traefik builds a request pipeline, processing middlewares sequentially as configured for efficient routing.

- Tags: internals
- Published: 2026-03-05

### [How to Integrate Traefik with Kubernetes Using Ingress and CRDs](/traefik/traefik/traefik-kubernetes-ingress-crd-integration)

Learn how to integrate Traefik with Kubernetes using both Ingress objects and CRDs like IngressRoute. Dynamically update your router configuration without restarts.

- Tags: how-to-guide
- Published: 2026-03-05

### [How to Set Up Let's Encrypt (ACME) for Automatic TLS Certificate Management in Traefik](/traefik/traefik/traefik-lets-encrypt-acme-tls-setup)

Learn how to set up Let's Encrypt for automatic TLS certificate management in Traefik. Configure resolvers and routers for seamless certificate issuance and renewal.

- Tags: how-to-guide
- Published: 2026-03-05

### [How to Configure Traefik to Automatically Reload Its Configuration Without Restarting](/traefik/traefik/traefik-auto-config-reload-no-restart)

Learn how to configure Traefik for automatic configuration reloads without restarting. Update routing rules and TLS certificates seamlessly using the watch option or SIGHUP signal.

- Tags: how-to-guide
- Published: 2026-03-05