111 lines
3 KiB
Nix
111 lines
3 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.alerta;
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alertaConf = pkgs.writeTextFile {
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name = "alertad.conf";
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text = ''
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DATABASE_URL = '${cfg.databaseUrl}'
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DATABASE_NAME = '${cfg.databaseName}'
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LOG_FILE = '${cfg.logDir}/alertad.log'
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LOG_FORMAT = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
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CORS_ORIGINS = [ ${concatMapStringsSep ", " (s: "\"" + s + "\"") cfg.corsOrigins} ];
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AUTH_REQUIRED = ${if cfg.authenticationRequired then "True" else "False"}
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SIGNUP_ENABLED = ${if cfg.signupEnabled then "True" else "False"}
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${cfg.extraConfig}
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'';
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};
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in
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{
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options.services.alerta = {
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enable = mkEnableOption "alerta";
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port = mkOption {
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type = types.int;
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default = 5000;
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description = lib.mdDoc "Port of Alerta";
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};
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bind = mkOption {
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type = types.str;
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default = "0.0.0.0";
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description = lib.mdDoc "Address to bind to. The default is to bind to all addresses";
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};
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logDir = mkOption {
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type = types.path;
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description = lib.mdDoc "Location where the logfiles are stored";
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default = "/var/log/alerta";
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};
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databaseUrl = mkOption {
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type = types.str;
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description = lib.mdDoc "URL of the MongoDB or PostgreSQL database to connect to";
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default = "mongodb://localhost";
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};
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databaseName = mkOption {
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type = types.str;
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description = lib.mdDoc "Name of the database instance to connect to";
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default = "monitoring";
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};
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corsOrigins = mkOption {
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type = types.listOf types.str;
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description = lib.mdDoc "List of URLs that can access the API for Cross-Origin Resource Sharing (CORS)";
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default = [ "http://localhost" "http://localhost:5000" ];
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};
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authenticationRequired = mkOption {
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type = types.bool;
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description = lib.mdDoc "Whether users must authenticate when using the web UI or command-line tool";
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default = false;
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};
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signupEnabled = mkOption {
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type = types.bool;
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description = lib.mdDoc "Whether to prevent sign-up of new users via the web UI";
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default = true;
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};
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extraConfig = mkOption {
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description = lib.mdDoc "These lines go into alertad.conf verbatim.";
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default = "";
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type = types.lines;
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};
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};
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config = mkIf cfg.enable {
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systemd.tmpfiles.rules = [
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"d '${cfg.logDir}' - alerta alerta - -"
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];
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systemd.services.alerta = {
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description = "Alerta Monitoring System";
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wantedBy = [ "multi-user.target" ];
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after = [ "networking.target" ];
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environment = {
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ALERTA_SVR_CONF_FILE = alertaConf;
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};
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serviceConfig = {
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ExecStart = "${pkgs.alerta-server}/bin/alertad run --port ${toString cfg.port} --host ${cfg.bind}";
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User = "alerta";
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Group = "alerta";
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};
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};
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environment.systemPackages = [ pkgs.alerta ];
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users.users.alerta = {
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uid = config.ids.uids.alerta;
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description = "Alerta user";
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};
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users.groups.alerta = {
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gid = config.ids.gids.alerta;
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};
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};
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}
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