docker-compose.redirect.yml

# itk-version: 3.2.4
services:
    nginx:
        labels:
            # Add www before domain and set redirect to non-www
            - "traefik.http.routers.www_${COMPOSE_PROJECT_NAME:?}-http.rule=Host(`www.${COMPOSE_SERVER_DOMAIN:?}`)"
            - "traefik.http.routers.www_${COMPOSE_PROJECT_NAME:?}-http.entrypoints=web"
            - "traefik.http.routers.www_${COMPOSE_PROJECT_NAME:?}-http.middlewares=redirect-to-https,non_www"
            - "traefik.http.routers.www_${COMPOSE_PROJECT_NAME:?}.rule=Host(`www.${COMPOSE_SERVER_DOMAIN:?}`)"
            - "traefik.http.routers.www_${COMPOSE_PROJECT_NAME:?}.entrypoints=websecure"
            - "traefik.http.routers.www_${COMPOSE_PROJECT_NAME:?}.middlewares=non_www"

            - traefik.http.middlewares.non_www.redirectregex.regex=^(http|https)?://(?:www\.)?(.+)
            - traefik.http.middlewares.non_www.redirectregex.replacement=https://$${2:?}
            - traefik.http.middlewares.non_www.redirectregex.permanent=true