nix/nixos/hosts/osaka-linode-01/wireguard.nix
iFargle a43916363d
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2023-12-21 15:52:18 +09:00

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Nix

{ pkgs, config, lib, ... }: {
# Allow these hosts to directly communicate with their hostnames
networking.extraHosts = ''
10.100.0.1 osaka-linode-01
10.100.0.2 framework-server
10.100.0.2 git.sysctl.io
10.100.0.2 loki.sysctl.io
10.100.0.2 influx.sysctl.io
10.100.0.2 telegraf.sysctl.io
10.100.0.2 headscale.sysctl.io
'';
networking.firewall.allowedUDPPorts = [ 51820 ];
networking.firewall.interfaces.wireguard0.allowedTCPPorts = [ 22 ];
# Set up the secrets file:
sops.secrets."wireguard_keys/osaka-linode-01" = {
owner = "root";
sopsFile = ../../../secrets/wireguard.yaml;
};
sops.secrets."wireguard_keys/preshared_key" = {
owner = "root";
sopsFile = ../../../secrets/wireguard.yaml;
};
# Wireguard Forwarder
boot.kernel.sysctl = {
"net.ipv4.ip_forward" = true;
"net.ipv4.conf.all.forwarding" = 1;
"net.ipv4.conf.default.forwarding" = 1;
};
networking.wireguard = {
enable = true;
interfaces = {
"wireguard0" = {
ips = [ "10.100.0.1/24" ];
listenPort = 51820;
privateKeyFile = "/run/secrets/wireguard_keys/osaka-linode-01";
postSetup = ''${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -s 10.100.0.0/24 -o enp0s4 -j MASQUERADE'';
postShutdown = ''${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -s 10.100.0.0/24 -o enp0s4 -j MASQUERADE'';
peers = [
{ # nixos-rpi4-03
publicKey = "trHvfNtQ7HKMiJjxEXo2Iubq5G6egjx7gHiBlDmJ5Ek=";
presharedKeyFile = "/run/secrets/wireguard_keys/preshared_key";
persistentKeepalive = 5;
allowedIPs = [ "10.100.0.2/32" ];
}
];
};
};
};
}