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feat: wireguard test

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This commit is contained in:
Nick 2025-07-01 15:39:57 -05:00
parent 9c8890926e
commit 6fb7b5504d
7 changed files with 82 additions and 42 deletions
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45
systems/ceres/config/wireguard.nix
View file

@ -1,22 +1,25 @@
{ config, flake, ... }:
{
config,
flake,
pkgs,
...
}:
let
inherit (flake.config.services.instances) wireGuard;
inherit (flake.config.machines.devices) mars ceres;
service = wireGuard;
hostIP = "${ceres.wireguard.ip0}/24";
in
{
networking = {
firewall = {
allowedTCPPorts = [
service.ports.port0
];
allowedUDPPorts = [
53
service.ports.port0
service.ports.port1
];
interfaces.wg0.allowedTCPPorts = [
80
443
8888
];
};
nat = {
@ -26,15 +29,36 @@ in
internalInterfaces = [ "wg0" ];
};
wireguard.interfaces = {
wg-quick.interfaces = {
wg0 = {
ips = [ "${ceres.wireguard.ip0}/24" ];
address = [
hostIP
"fdc9:281f:04d7:9ee9::1/64"
];
listenPort = service.ports.port1;
privateKeyFile = config.sops.secrets."${service.name}-private".path;
postUp = ''
${pkgs.iptables}/bin/iptables -A FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -s ${hostIP} -o eth0 -j MASQUERADE
${pkgs.iptables}/bin/ip6tables -A FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/ip6tables -t nat -A POSTROUTING -s fdc9:281f:04d7:9ee9::1/64 -o eth0 -j MASQUERADE
'';
# Undo the above
preDown = ''
${pkgs.iptables}/bin/iptables -D FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -s ${hostIP} -o eth0 -j MASQUERADE
${pkgs.iptables}/bin/ip6tables -D FORWARD -i wg0 -j ACCEPT
${pkgs.iptables}/bin/ip6tables -t nat -D POSTROUTING -s fdc9:281f:04d7:9ee9::1/64 -o eth0 -j MASQUERADE
'';
peers = [
{
publicKey = "9zfRPxkxTLHM9tABC8lIaDMrzdjcF2l1mtG82uqGKUQ=";
allowedIPs = [ "${mars.wireguard.ip0}/32" ];
presharedKeyFile = config.sops.secrets."${service.name}-mars-public".path;
allowedIPs = [
"${mars.wireguard.ip0}/32"
"fdc9:281f:04d7:9ee9::2/128"
];
}
];
};
@ -59,6 +83,7 @@ in
[
"private"
"public"
"mars-public"
]
);
};