Traefik + ModSecurity plugin

docker-compose.yaml

version: "3.8"

services:
  traefik:
    image: traefik
    ports:
      - "8000:80"
      - "8080:8080"
    command:
      - --api.dashboard=true
      - --api.insecure=true
      - --experimental.plugins.traefik-modsecurity-plugin.modulename=github.com/acouvreur/traefik-modsecurity-plugin
      - --experimental.plugins.traefik-modsecurity-plugin.version=v1.3.0
      - --providers.docker=true
      - --entrypoints.http.address=:80
    volumes:
      - '/var/run/docker.sock:/var/run/docker.sock'
    labels:
      - traefik.enable=true
      - traefik.http.services.traefik.loadbalancer.server.port=8080
      - traefik.http.middlewares.waf.plugin.traefik-modsecurity-plugin.modSecurityUrl=http://waf:80
      - traefik.http.middlewares.waf.plugin.traefik-modsecurity-plugin.maxBodySize=10485760

  # Nginx server with OWASP CRS (Core Rule Set) rules
  waf:
    image: owasp/modsecurity-crs:nginx-alpine
    environment:
      - PARANOIA=2
      - ANOMALY_INBOUND=10
      - ANOMALY_OUTBOUND=5
      - BACKEND=http://dummy

  # Dummy service that always returns status HTTP 200 to WAF container
  dummy:
    image: traefik/whoami

  # Actual service that we want to protect
  website:
    image: traefik/whoami
    labels:
      - traefik.enable=true
      - traefik.http.routers.website.rule=PathPrefix(`/`)
      - traefik.http.routers.website.middlewares=waf@docker