nix-config/modules/nixos/services/lohr/default.nix

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# A simple Gitea webhook to mirror all my repositories
{ config, lib, pkgs, ... }:
let
cfg = config.my.services.lohr;
settingsFormat = pkgs.formats.yaml { };
lohrStateDirectory = "lohr";
lohrHome = "/var/lib/lohr/";
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in
{
options.my.services.lohr = with lib; {
enable = mkEnableOption "Automatic gitea repositories mirroring";
port = mkOption {
type = types.port;
default = 9192;
example = 8080;
description = "Internal port of the Lohr service";
};
setting = mkOption rec {
type = settingsFormat.type;
apply = recursiveUpdate default;
default = {
default_remotes = [
"git@github.com:ambroisie"
"git@git.sr.ht:~ambroisie"
];
};
description = "Global settings configuration file";
};
sharedSecretFile = mkOption {
type = types.str;
example = "/run/secrets/lohr.env";
description = "Shared secret between lohr and Gitea hook";
};
sshKeyFile = mkOption {
type = with types; nullOr str;
default = null;
example = "/run/secrets/lohr/ssh-key";
description = ''
The ssh key that should be used by lohr to mirror repositories
'';
};
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};
config = lib.mkIf cfg.enable {
systemd.services.lohr = {
wantedBy = [ "multi-user.target" ];
serviceConfig = {
EnvironmentFile = [
cfg.sharedSecretFile
];
Environment = [
"ROCKET_PORT=${toString cfg.port}"
"ROCKET_LOG_LEVEL=normal"
"LOHR_HOME=${lohrHome}"
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"LOHR_CONFIG="
];
ExecStartPre = lib.mkIf (cfg.sshKeyFile != null) ''+${
pkgs.writeScript "copy-ssh-key" ''
#!${pkgs.bash}/bin/bash
# Ensure the key is not there
mkdir -p '${lohrHome}/.ssh'
rm -f '${lohrHome}/.ssh/id_ed25519'
# Move the key into place
cp ${cfg.sshKeyFile} '${lohrHome}/.ssh/id_ed25519'
# Fix permissions
chown -R lohr:lohr '${lohrHome}/.ssh'
chmod -R 0700 '${lohrHome}/.ssh'
''
}'';
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ExecStart =
let
configFile = settingsFormat.generate "lohr-config.yaml" cfg.setting;
in
"${lib.getExe pkgs.ambroisie.lohr} --config ${configFile}";
StateDirectory = lohrStateDirectory;
WorkingDirectory = lohrHome;
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User = "lohr";
Group = "lohr";
};
path = with pkgs; [
git
openssh
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];
};
users.users.lohr = {
isSystemUser = true;
home = lohrHome;
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createHome = true;
group = "lohr";
};
users.groups.lohr = { };
my.services.nginx.virtualHosts = {
lohr = {
subdomain = "lohr";
inherit (cfg) port;
};
};
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};
}