Added traefik Example

traefik-example/README.md

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+Crontab UI - Traefik Example
+==========
+
+*Traefik is a modern HTTP reverse proxy and load balancer that makes deploying microservices easy.*
+
+https://containo.us/traefik/
+
+
+
+## Running Example
+
+Assumes port 88 and 8088 are free.
+
+1. `docker-compose build`
+2. `docker-compose up`
+
+Then go to 
+
+- http://127.0.0.1:88/crontab  to view contrab-ui
+- http://127.0.0.1:88/whoami  another docker container (containous/whoami) running on another path.
+- http://127.0.0.1:8088/dashboard/ to view the Traefik dashbaord.
+
+
+
+
+

traefik-example/docker-compose.yml

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+version: '3.7'
+networks:
+  traefik_network:
+  
+services:
+  proxy:
+    image: traefik:v2.2
+    container_name: proxy
+    restart: unless-stopped
+    networks:
+      - traefik_network
+    ports:
+      - 88:80 
+      - 8088:8080 
+    volumes:
+      # So that Traefik can listen to the Docker events
+      - /var/run/docker.sock:/var/run/docker.sock
+      - ./traefik.yml:/etc/traefik/traefik.yml
+    command: 
+      - "--providers.docker" 
+   
+  whoami:
+    image: containous/whoami
+    networks:
+      - traefik_network
+    labels:
+      - traefik.enable=true
+      - traefik.http.routers.whoami.rule=PathPrefix(`/whoami`)
+  
+  crontab-ui:
+    build: ..
+    image: alseambusher/crontab-ui
+    ports:
+      - 8000:8000
+    networks:
+      - traefik_network
+    labels:
+      - traefik.enable=true
+      - traefik.http.routers.crontab.rule=PathPrefix(`/crontab`)
+    environment:
+       BASE_URL: /crontab
+       BASIC_AUTH_USER: user
+       BASIC_AUTH_PWD: pass

traefik-example/traefik.yml

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+## traefik.yml
+
+# Docker configuration backend
+providers:
+  docker:
+  #  defaultRule: "Host(`{{ trimPrefix `/` .Name }}.docker.localhost`)"
+    endpoint: "unix:///var/run/docker.sock"
+  #  swarmMode: true
+    network: traefik_network
+    exposedbydefault: false
+
+# API and dashboard configuration
+api:
+  insecure: true