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Getting Started with Traefik

Traefik Logo

1. Starting Traefik for the first time

  1. Open you Terminal window and change to the 01-Traefik-Overview folder
  2. Open the docker-compose.yml file in your favorite editor and review how Docker starts Traefik
  3. From the 01-Traefik-Overview directory execute this command -> docker-compose up -d
  4. Review the logs output docker-compose logs

2. Connect a new service to Traefik

  1. Uncomment the below whoami section inside the docker-compose.yml. Review the whoami.yml file for the complete solution.
whoami:
     # A container that exposes an API to show its IP address
     image: containous/whoami
     # We set a label to tell Traefik to assign a hostname to the new service
     labels:
       - "traefik.http.routers.whoami.rule=Host(`whoami.docker.localhost`)"
  1. Run docker-compose up -d whoami
  2. Open a browser tab and paste whoami.docker.localhost or from a terminal window curl -H Host:whoami.docker.localhost http://127.0.0.1 and you should see the below results but with your IP addresses.
Hostname: 931789a57923
IP: 127.0.0.1
IP: 172.20.0.3
RemoteAddr: 172.20.0.2:46648
GET / HTTP/1.1
Host: whoami.docker.localhost
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate, br
Accept-Language: en-GB,en-US;q=0.9,en;q=0.8
Cache-Control: max-age=0
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: none
Sec-Fetch-User: ?1
Upgrade-Insecure-Requests: 1
X-Forwarded-For: 172.20.0.1
X-Forwarded-Host: whoami.docker.localhost
X-Forwarded-Port: 80
X-Forwarded-Proto: http
X-Forwarded-Server: 07d5bffe1678
X-Real-Ip: 172.20.0.1

3. Scale the Whoami service to 3x

  1. Open you Terminal window and change to the 01-Traefik-Overview folder
  2. Let's scale the whoami service to 3x instances by typing docker-compose up -d --scale whoami=3
  3. Open a browser tab and paste whoami.docker.localhost or from a terminal window curl -H Host:whoami.docker.localhost http://127.0.0.1 and you should see the 3rd IP address update based on which service is responding.

4. Get to know the Traefik Dashboard

  1. Open a browser tab and type or click: http://0.0.0.0:8080 to open the Traefik Dashboard

Continue to the Configure Traefik Lab

Click here to continue -> Configure Traefik