My guess is that if you are here then you already know what you are looking for. For the benefit of everyone else, let me give you a quick tldr;
tldr;
This is my pristine production-quality config for deploying Traefik as my front-end proxy and TLS termination server. It is the outcome of piecing together various bits from the excellent Traefik 2.0 documentation website. In addition to starting Traefik the compose file also spins up a test image so that you can confirm that it works.
The docker-compose, decomposed
see what I did there? yeah...
I use docker-compose for most off my deployments it packs in the configuration and layout nicely. Traefik allows for a full config from command line arguments which obviates the need for traefik.toml files. It does, however, reqire and empty acme.json file prior to starting up.
The command line options under command: for Traefik turn on the api endpoint, enable the Docker provider, configure LetsEncrypt, and open listening ports on 80 (HTTP) and 443 (HTTPS).
The docker labels: tell Traefik to redirect all HTTP to HTTPS
You will also notice the whoami: container. The labels there tell Traefik to route all HTTPS traffic to <YOUR_DOMAIN_NAME> to that container, as well as to manage a TLS LetsEncrypt certificate.
docker-compose.yml
version: '3'
services:
traefik:
container_name: traefik
image: traefik:v2.0
command:
- "--api.insecure=true"
- "--providers.docker=true"
- "--entryPoints.web.address=:80"
- "--entryPoints.websecure.address=:443"
- "--certificatesResolvers.le.acme.email=<YOUR_EMAIL>"
- "--certificatesResolvers.le.acme.storage=acme.json"
- "--certificatesResolvers.le.acme.tlsChallenge=true"
- "--certificatesResolvers.le.acme.httpChallenge=true"
- "--certificatesResolvers.le.acme.httpChallenge.entryPoint=web"
restart: always
ports:
- 80:80
- 443:443
- 8080:8080
networks:
- web
volumes:
- /var/run/docker.sock:/var/run/docker.sock
- ./acme.json:/acme.json
labels:
# Redirect all HTTP to HTTPS permanently
- traefik.http.routers.http_catchall.rule=HostRegexp(`{any:.+}`)
- traefik.http.routers.http_catchall.entrypoints=web
- traefik.http.routers.http_catchall.middlewares=https_redirect
- traefik.http.middlewares.https_redirect.redirectscheme.scheme=https
- traefik.http.middlewares.https_redirect.redirectscheme.permanent=true
whoami:
image: "containous/whoami"
container_name: "simple-service"
restart: always
networks:
- web
labels:
- traefik.http.routers.whoami.rule=Host(`<YOUR_DOMAIN_NAME>`)
- traefik.http.routers.whoami.tls=true
- traefik.http.routers.whoami.tls.certresolver=le
networks:
web:
external: true
Things to note
Take note of an external network named web. This is an explicit convention I adopted so that I know only web traffic passes over it. This is the network over which Traefik communicates with other containers.
References
- The above code is published as a gist here: https://gist.github.com/undernewmanagement/414ce52ae4bd020115e849eaef7c54dd
- Traefik Website: trefik.io
- LetsEncrypt: letsencrypt.org
Top comments (1)
Thanks for this.
I'm upgrading from v1 and wanted to bypass some of the horrific upgrade notes to get a base config setup on V2 to test out first. This compose file works perfect for it 👍