Traefik v2 - How to enable gzip compression

traefikv2-gzip-compression.txt

### Traefik v2 docker-compose.yml

version: '3.7'

services:
  traefik:
    image: traefik:v2.2.7
    container_name: traefik

labels:
.
.
. 
// paste on the last line to enable gzip compression
- "traefik.http.routers.traefik.middlewares=traefik-compress"
- "traefik.http.middlewares.traefik-compress.compress=true"

### Your container docker-compose.yml

version: '3.7'

services:
    your_service_name:
      image: your_image_url
      container_name: your_container_name
      
labels:
.
.
.
// paste on the last line to enable gzip compression
- "traefik.http.middlewares.your_container_name_compress.compress=true"
- "traefik.http.routers.your_container_name.middlewares=your_container_name_compress"

in my case it was enough to add two labels to traefik service, no additional labels to other containers

@karolzlot Did you have any updates on your config file?

▶️ You do not need to modify traefik service configuration

If you want to enable compression on a service, simply add to that service configuration :

    labels:
       [...]
+      # Enable compression
+      - "traefik.http.middlewares.{your-middleware-name}.compress=true"
+      # Reference the middleware(s) to use for that service/router
+      - "traefik.http.routers.{your-router-name}.middlewares=web-compress"

For example

services:

  whoami:
    image: traefik/whoami
    container_name: whoami
    restart: unless-stopped
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.whoami.rule=Host(``whoami.fqdn.com`)"
      - "traefik.http.routers.whoami.entrypoints=websecure"
      - "traefik.http.routers.whoami.tls=true"
      - "traefik.http.routers.whoami.tls.certresolver=letsencrypt"
      - "traefik.http.middlewares.web-compress.compress=true"
      - "traefik.http.routers.whoami.middlewares=web-compress"

If you want to enable compression on all your services at once, maybe (I didn't test it, but based on the previous comment it should work) you can simply do that on the traefik service configuration, avoiding the hassle to apply it to each other service

🔗 Official documentation (with other options, and other configuration types) : https://doc.traefik.io/traefik/middlewares/http/compress/