79 lines
2.1 KiB
Nix
79 lines
2.1 KiB
Nix
{ overlay }:
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{
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lib,
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pkgs,
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config,
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...
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}:
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with lib;
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{
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options.services.madd-client = {
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enable = mkEnableOption "MADD client";
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endpoint = mkOption {
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type = types.str;
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description = "Endpoint for MADD client to connect to.";
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};
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interface = mkOption {
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type = types.str;
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default = "eth0";
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description = "Network interface to use for MADD client.";
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};
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priv-key-file = mkOption {
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type = types.str;
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default = "/etc/ssh/ssh_host_ed25519_key";
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description = "Path to the private SSH key file identifying this machine.";
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};
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pub-key-file = mkOption {
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type = types.str;
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default = "${config.services.madd-client.priv_key_file}.pub";
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description = "Path to the public SSH key file identifying this machine.";
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};
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hostname = mkOption {
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type = types.str;
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default = config.networking.hostName;
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description = "Hostname to use for MADD client.";
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};
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};
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options.services.madd-server = {
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enable = mkEnableOption "MADD server";
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};
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config = {
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nixpkgs.overlays = [ overlay ];
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}
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// (
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let
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cfg = config.services.madd-client;
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in
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optionalAttrs config.madd-client.enable {
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systemd.services.madd-client = {
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description = "MADD Client Service";
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wantedBy = [ "multi-user.target" ];
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before = [ "network-pre.target" ];
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requires = [ "network-pre.target" ];
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script = ''
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${pkgs.iproute2}/bin/ip -4 monitor address label dev "${cfg.interface}" | while read -r event; do
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if [[ $event == \[ADDR\]* ]]; then
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ipv4=$(${pkgs.iproute2}/bin/ip -4 addr show dev "${cfg.interface}" | grep -Po 'inet \K[\d.]+')
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if [ -n "$ipv4" ]; then
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export MADD_ENDPOINT="${cfg.endpoint}"
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export MADD_PRIV_KEY="${cfg.priv-key-file}"
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export MADD_PUB_KEY="${cfg.pub-key-file}"
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export MADD_HOSTNAME="${cfg.hostname}"
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export MADD_IP="$ipv4"
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${pkgs.madd-client}/bin/madd-client
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fi
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done
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'';
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};
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}
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)
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// (optionalAttrs config.madd-server.enable {
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});
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}
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