No problem, I appreciate the help!

So I've made a fair bit of progress now - I've managed to get all my containers working behind the Traefik reverse proxy with SSL. I've also deployed a Cloudflare DDNS container in Docker and have linked the external IP address of my Synology NAS to Cloudflare. I haven't port forwarded 80 and 443, though, so it's not accessible over the internet. So I've added local DNS into Pi-hole so I can access all the containers using subdomains.

I've also deployed an Authelia container and have started running through my containers adding 2FA in front of them all.

I should probably point out at this juncture, that if I encounter any errors, the HTTP 404 page that I get is a Cloudflare one - I assume that's expected behaviour?

So, the final three bits I'm struggling with now are:

• Pi-hole behind the reverse proxy
• Portainer behind the reverse proxy
• Accessing Vaultwarden over the internet (because as soon as I leave my house, if the vault hasn't synced then I don't have access to all my passwords) - unless anybody has a better suggestion?

Portainer - I have no idea how I do it, because I use it to manage my containers, so don't have the config for Portainer in Portainer (obviously). So if I screw up the config, how am I getting back in to Portainer to fix it?

And the far more troubling one is Pi-hole. I just cannot get that thing working behind the reverse proxy.

I've followed a few different guides (though none of them are recent), and the below is the latest docker-compose I have. It will bring up the login page, but when I login it keeps returning me back to the login page - it won't go to the main admin page.

version: "3.7"

services:
  pihole:
    container_name: pihole
    image: pihole/pihole:latest
    restart: unless-stopped
    networks:
      - medianet
      - npm_network
    ports:
      - 8008:80
      - 53:53/tcp
      - 53:53/udp
    environment:
      - TZ=Europe/London
      - WEBPASSWORD=xxxxxxxxxx
      - FTLCONF_LOCAL_IPV4=192.168.1.116
      - WEBTHEME=default-auto
      - DNSMASQ_LISTENING=ALL
      - VIRTUAL_HOST=pihole.mydomain.com
    volumes:
      - /path/to/pihole:/etc/pihole
      - /path/to/pihole/dnsmasq.d:/etc/dnsmasq.d
    cap_add:
      - NET_ADMIN
    labels:
      - traefik.enable=true
      - traefik.http.routers.pihole.entrypoints=http
      - traefik.http.routers.pihole.rule=Host(`pihole.mydomain.com`)
      - traefik.http.middlewares.pihole-https-redirect.redirectscheme.scheme=https
      - traefik.http.routers.pihole.middlewares=pihole-https-redirect
      - traefik.http.middlewares.pihole-addprefix.addprefix.prefix=/admin
      - traefik.http.routers.pihole.middlewares=pihole-addprefix
      - traefik.http.routers.pihole-secure.entrypoints=https
      - traefik.http.routers.pihole-secure.rule=Host(`pihole.mydomain.com`)
      - traefik.http.routers.pihole-secure.tls=true
      - traefik.http.routers.pihole-secure.service=pihole
      - traefik.http.services.pihole.loadbalancer.server.port=80

networks:
  medianet:
    external: true
  npm_network:
    external: true