Hi guys! I have several docker containers running on my home server set up with separated compose files for each of them, including a Pihole one that serves as my home DNS. I created a network for it and a fixed IP but I couldn’t find a way to set fixed IPs to the other containers that use the Pihole network. Well everything works but every now and then I have problems because the Pihole cant start first and grab the fixed IP and some other container gets its IP so nothing works because everything depends on the Pihole to work. My Pihole compose is like this:

`networks: casa:

driver: bridge
ipam:
  config:
    - subnet: "172.10.0.0/20"

networks:

  casa:
    ipv4_address: 172.10.0.2`

My Jellyfin container as an example is like this:

`_networks: - pihole_casa dns: - 172.10.0.2

networks: pihole_casa: external: true__`

I read the documentation about setting fixed IP but all I got was using one single compose file and with 12 containers that seems like a messy solution… I couldn’t set fixed IPs with different compose files. Do you guys have any suggestion about it?

Thanks!

TLDR: I want to set fixed IPs to containers in different compose files so all of them use Pihole as DNS and don´t steal Pihole’s IP in the startup

  • 名探偵@lemmy.dbzer0.com
    2·
    1 year ago

    For each container you can specify what network to use. For example:

    networks:
  - network1
  - network2

    Then set the same network for the containers that should be able to communicate and you can just use the name of the service instead of the fixed ip. There is also hostname which can be set on each container.

    You can also use the same network with multiple compose files.

    Create the network like this docker network create http_network and put this in your compose files:

    networks:
  http_network:
    external: true
    • fernandu00OP
      1·
      1 year ago

      That external part I’ve set in my compose files but I didn’t know about the hostname …thanks!