Identity

Docker image: traefik:v3 (current stable; traefik:latest tracks major version)
Binary install: /usr/local/bin/traefik (when running outside Docker)
Static config: /etc/traefik/traefik.yml (or traefik.toml; YAML preferred)
Dynamic config dir: /etc/traefik/dynamic/ (watched by file provider)
Docker socket: /var/run/docker.sock (mounted read-only into the Traefik container)
Dashboard port: 8080/tcp (default; disable or protect in production)
Logs: Docker: docker logs traefik; Systemd: journalctl -u traefik
Distro install: apt install traefik / download binary from https://github.com/traefik/traefik/releases

Key Operations

Operation	Command
Check dashboard (browser)	`http://localhost:8080/dashboard/` (trailing slash required)
API: list routers	`curl -s http://localhost:8080/api/http/routers \| jq '.[].name'`
API: list services	`curl -s http://localhost:8080/api/http/services \| jq '.[].name'`
API: list middlewares	`curl -s http://localhost:8080/api/http/middlewares \| jq '.[].name'`
API: check router detail	`curl -s http://localhost:8080/api/http/routers/<name>@docker \| jq .`