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In this tutorial we will simply launch a traefik docker image with a whoami docker image over a docker network. The official Traefik docs can be found at: https://doc.traefik.io/traefik/getting-started/quick-start/
The only pre-requisites are that you already have docker and docker compose installed. See my tutorial here for installing docker: https://phoenixignited.tech/install-docker-on-ubuntu/ and here for installing docker compose: https://phoenixignited.tech/install-docker-compose-on-ubuntu/
We will first off create a compose.yaml file for Traefik:
mkdir traefik && cd traefik && nano compose.yaml
Inside the compose.yaml file we will enter:
version: '3'
services:
reverse-proxy:
image: traefik:v3.0
command:
- "--api.insecure=true"
- "--providers.docker=true"
- "--entrypoints.web.address=:80"
- "--entrypoints.websecure.address=:443"
ports:
- "80:80"
- "443:443"
- "8080:8080"
volumes:
- /var/run/docker.sock:/var/run/docker.sock
networks:
- traefik
networks:
traefik:
external: true
Next we need to create a docker network called traefik
docker network create traefik
We can start our Traefik docker image with:
docker-compose up -d reverse-proxy
Now that our docker traefik image is running we need to run the whoami instance
We will begin with creating the whoami compose.yaml file.
cd .. && mkdir whoami && cd whoami && nano compose.yaml
We will enter the following into the compose.yaml file:
version: '3'
services:
whoami:
# A container that exposes an API to show its IP address
image: traefik/whoami
labels:
- "traefik.http.routers.whoami.rule=Host(`whoami.docker.localhost`)"
networks:
- traefik
networks:
traefik:
external: true
We can check and see that Traefik is running and that Traefik is recognizing Whoami by going to http://<your_host_ip>:8080, this will display the traefik dashboard as seen below:
Now we can go to our http services and find our whoami service, we should see something like:
We can also run in the terminal:
curl -H Host:whoami.docker.localhost http://127.0.0.1
You should get something similar to:
We can see that whoami and traefik are running successfully, and that traefik sees whoami and is acting as a reverse proxy, forwarding traffic to the whoami server, which was our goal. That’s a wrap! I hope you found it useful and stay tuned for more!
Walter Miely is a tech entrepreneur and CEO of Phoenix Ignited Tech You can find him on Linkedin. This material is licensed under the CC BY 4.0 License LEGAL DISCLAIMER: The content provided here is provided AS IS, and part of, or the entirety of this content may be incorrect. Please read the entireLegal Disclaimer here.
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