Traefik + Ghost + Cloudflare

ghost-compose.yml

# docker compose for Ghost
networks:
  proxy:
    name: web
    external: true

services:
  ghost:
    image: beevk/ghost-s3:v1.0.0
    restart: always
    ports:
      - 2368:2368
    environment:
      database__client: mysql
      database__connection__host: db-host
      # and other environment variables
    labels:
      - traefik.enable=true
      - traefik.http.routers.ghost.rule=Host(`my-domain.com`) || Host(`www.my-domain.com`)
      - traefik.http.middlewares.my-auth-middleware.forwardauth.trustForwardHeader=true # To trust x-forwarded-* set by Cloudflare
      - traefik.http.routers.ghost.middlewares=my-auth-middleware
      - traefik.http.routers.ghost.tls=true # to use HTTPS
      - traefik.http.routers.ghost.tls.certresolver=cloudflare # is it even needed?
    volumes:
      - ./ghost-data:/var/lib/ghost/content
    networks:
      - proxy

traefik-compose.yml

# docker compose for Traefik
services:
  reverse-proxy:
    image: traefik:v2.11
    restart: always
    ports:
      - "80:80"
      - "443:443"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./traefik-data/config/traefik.yml:/traefik.yml:ro
      - ./traefik-data/config/acme.json:/acme.json
      - ./traefik-data/logs:/var/log/
    environment:
      - CF_API_EMAIL=email@gmail.com
      - CF_DNS_API_TOKEN=cloudflare-api-token
    networks:
      - proxy
    labels:
      - traefik.enable=true
      - traefik.http.routers.api.rule=Host(`config.my-domain.com`)
      - traefik.http.routers.api.service=api@internal
      - traefik.http.routers.websecure.tls=true
      - traefik.http.routers.websecure.tls.certresolver=cloudflare
      - traefik.http.routers.websecure.tls.domains[0].main=my-domain.com
      - traefik.http.routers.websecure.tls.domains[0].sans=*.my-domain.com
  whoami:
    image: traefik/whoami
    restart: always
    networks:
      - proxy
    labels:
      - traefik.enable=true
      - traefik.http.routers.whoami.rule=Host(`info.my-domain.com`)

traefik.yml

api:
  dashboard: true
  debug: true
entryPoints:
  web:
    address: ":80"
  websecure:
    address: ":443"
serversTransport:
  insecureSkipVerify: true
providers:
  docker:
    endpoint: "unix:///var/run/docker.sock"
    exposedByDefault: false
certificatesResolvers:
  cloudflare:
    acme:
      email: email@gmail.com #add your email
      storage: acme.json
      dnsChallenge:
        provider: cloudflare
        #disablePropagationCheck: true # uncomment this if you have issues pulling certificates through cloudflare, By setting this flag to true disables the need to wait for the propagation of the TXT record to all authoritative name servers.
        resolvers:
          - "1.1.1.1:53"
          - "1.0.0.1:53"
http:
  middlewares:
    redirect-to-https:
      redirectScheme:
        scheme: https