Update cheatsheets

traefik

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# traefik
+
+> An HTTP reverse proxy and load balancer.
+> More information: <https://traefik.io>.
+
+- Start server with default config:
+
+`traefik`
+
+- Start server with a custom configuration file:
+
+`traefik --c {{config_file.toml}}`
+
+- Start server with cluster mode enabled:
+
+`traefik --cluster`
+
+- Start server with web UI enabled:
+
+`traefik --web`