30 lines
1.2 KiB
Nix
30 lines
1.2 KiB
Nix
# This module assumes that every hostName of a machine in this repo only appears in one of the ip addresses,
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# to derive the ip adress based on the hostname this will need patching if we will ever have a vm with multiple
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# outward facing network interfaces.
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# (other hostnames can appear multiple times)
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{
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lib,
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config,
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...
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}: let
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inherit (lib) lists;
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inherit (builtins) elem;
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# taken from aza /etc/hosts
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hostmap = import ./hostmap.nix;
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myhostName = config.networking.hostName;
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# We replace our own ip with 127.0.0.1 in /etc/hosts
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myhosts = lib.attrsets.concatMapAttrs (ip: hosts:
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if (elem myhostName hosts)
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# nixos maps the hostname to the loopback 127.0.0.2 by default, so we exclude it here.
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# there is also a default localhost to 127.0.0.1 in place
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then {"127.0.0.1" = lists.filter (x: x != myhostName) hosts;}
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else {${ip} = hosts;})
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hostmap;
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myIp = (lists.findSingle (x: elem myhostName x.value) (throw "The machine has no ip address in nixos/roles/hostmap.nix") (throw "The ip for this machine is not unique in nixos/roles/hostmap.nix") (lib.attrsToList hostmap)).name;
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in {
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imports = [
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../modules/vmNetwork.nix
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];
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networking.hosts = myhosts;
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vmNetwork.ipv4 = myIp;
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}
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