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How to allow containerized Heimdall see Pi-Hole (lemmy.world)
submitted 3 years ago by to c/homelab@lemmy.ml
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I've got both Heimdall and Pi-Hole running in docker. They both work fine, but I'd like to get the Pi-Hole advanced statistics in Heimdall. The others, I just put on the bridge network, but I'm not sure I can have the Pi-Hole on bridge and the macvlan network. Is that possible, or is there a better way to accomplish this?

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[–] 1 point 3 years ago* (3 children)

Why not? You can just connect the PiHole container to both networks and inter-container communication should work as usual. I haven’t tried this with PiHole specifically but I’ve done it with other services in the past

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  • [–] [S] 1 point 3 years ago (2 children)

    Maybe I just don't know how... Do you have a compose script you could share?

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  • [–] 2 points 3 years ago* (1 child)

    Not for PiHole but I was testing this recently with traefik. This has a bunch of traefik stuff in there (I’m on mobile so it’s too hard to edit it) but hopefully you see how the networks work

    # Testing macvlan setup for traefik
# Will only work on linux because of macvlan network

version: '3'

services:
  traefik-whoami:
    image: traefik/whoami
    container_name: traefik_whoami
    networks:
      - bridge_network
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.whoami.rule=Host(`whoami.test`)"
      - "traefik.http.routers.whoami.entrypoints=http"
  
  traefik-reverse-proxy:
    image: traefik:v2.10
    container_name: traefik_reverse_proxy
    command:
      - "--api.insecure=true"  # Enable the API dashboard (insecure for testing)
      - "--providers.docker=true"  # Enable Docker provider
      - "--providers.docker.exposedbydefault=false"  # Disable exposing all containers by default
      - "--entrypoints.http.address=:80"  # HTTP entrypoint
      - "--entrypoints.http.forwardedheaders.insecure=true"  # Insecure forwarding (for testing)
      - "--providers.docker.network=bridge_network"  # Use bridge network for traefik discovery
    ports:
      - "1180:80"  # Expose HTTP entrypoint
      - "12345:8080"  # Expose Traefik dashboard
    networks:
      bridge_network: {}
      macvlan_network:
        ipv4_address: 192.168.1.69
    volumes:
      # TODO: Use docker.sock proxy instead of mounting directly
      # https://github.com/Tecnativa/docker-socket-proxy
      - /var/run/docker.sock:/var/run/docker.sock:ro
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.reverse-proxy.rule=Host(`traefik.test`)"
      - "traefik.http.routers.reverse-proxy.entrypoints=http"

networks:
  bridge_network:
    driver: bridge

  macvlan_network:
    driver: macvlan
    driver_opts:
      parent: eth0
    ipam:
      config:
        - subnet: 192.168.1.0/24
          gateway: 192.168.1.1
          ip_range: 192.168.1.69/32  # Must be outside router's DHCP range
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