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478e7184f8
And replace them with a more appropriate type Also fix up some minor module problems along the way
192 lines
4.8 KiB
Nix
192 lines
4.8 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.kapacitor;
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kapacitorConf = pkgs.writeTextFile {
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name = "kapacitord.conf";
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text = ''
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hostname="${config.networking.hostName}"
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data_dir="${cfg.dataDir}"
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[http]
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bind-address = "${cfg.bind}:${toString cfg.port}"
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log-enabled = false
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auth-enabled = false
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[task]
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dir = "${cfg.dataDir}/tasks"
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snapshot-interval = "${cfg.taskSnapshotInterval}"
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[replay]
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dir = "${cfg.dataDir}/replay"
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[storage]
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boltdb = "${cfg.dataDir}/kapacitor.db"
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${optionalString (cfg.loadDirectory != null) ''
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[load]
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enabled = true
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dir = "${cfg.loadDirectory}"
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''}
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${optionalString (cfg.defaultDatabase.enable) ''
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[[influxdb]]
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name = "default"
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enabled = true
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default = true
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urls = [ "${cfg.defaultDatabase.url}" ]
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username = "${cfg.defaultDatabase.username}"
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password = "${cfg.defaultDatabase.password}"
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''}
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${optionalString (cfg.alerta.enable) ''
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[alerta]
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enabled = true
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url = "${cfg.alerta.url}"
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token = "${cfg.alerta.token}"
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environment = "${cfg.alerta.environment}"
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origin = "${cfg.alerta.origin}"
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''}
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${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.kapacitor = {
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enable = mkEnableOption "kapacitor";
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dataDir = mkOption {
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type = types.path;
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example = "/var/lib/kapacitor";
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default = "/var/lib/kapacitor";
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description = "Location where Kapacitor stores its state";
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};
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port = mkOption {
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type = types.int;
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default = 9092;
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description = "Port of Kapacitor";
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};
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bind = mkOption {
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type = types.str;
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default = "";
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example = literalExample "0.0.0.0";
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description = "Address to bind to. The default is to bind to all addresses";
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};
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extraConfig = mkOption {
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description = "These lines go into kapacitord.conf verbatim.";
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default = "";
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type = types.lines;
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};
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user = mkOption {
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type = types.str;
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default = "kapacitor";
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description = "User account under which Kapacitor runs";
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};
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group = mkOption {
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type = types.str;
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default = "kapacitor";
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description = "Group under which Kapacitor runs";
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};
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taskSnapshotInterval = mkOption {
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type = types.str;
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description = "Specifies how often to snapshot the task state (in InfluxDB time units)";
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default = "1m0s";
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example = "1m0s";
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};
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loadDirectory = mkOption {
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type = types.nullOr types.path;
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description = "Directory where to load services from, such as tasks, templates and handlers (or null to disable service loading on startup)";
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default = null;
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};
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defaultDatabase = {
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enable = mkEnableOption "kapacitor.defaultDatabase";
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url = mkOption {
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description = "The URL to an InfluxDB server that serves as the default database";
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example = "http://localhost:8086";
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type = types.str;
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};
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username = mkOption {
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description = "The username to connect to the remote InfluxDB server";
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type = types.str;
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};
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password = mkOption {
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description = "The password to connect to the remote InfluxDB server";
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type = types.str;
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};
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};
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alerta = {
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enable = mkEnableOption "kapacitor alerta integration";
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url = mkOption {
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description = "The URL to the Alerta REST API";
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default = "http://localhost:5000";
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example = "http://localhost:5000";
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type = types.str;
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};
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token = mkOption {
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description = "Default Alerta authentication token";
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type = types.str;
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default = "";
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};
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environment = mkOption {
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description = "Default Alerta environment";
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type = types.str;
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default = "Production";
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};
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origin = mkOption {
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description = "Default origin of alert";
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type = types.str;
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default = "kapacitor";
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};
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};
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};
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config = mkIf cfg.enable {
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environment.systemPackages = [ pkgs.kapacitor ];
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systemd.tmpfiles.rules = [
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"d '${cfg.dataDir}' - ${cfg.user} ${cfg.group} - -"
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];
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systemd.services.kapacitor = {
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description = "Kapacitor Real-Time Stream Processing Engine";
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wantedBy = [ "multi-user.target" ];
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after = [ "networking.target" ];
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serviceConfig = {
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ExecStart = "${pkgs.kapacitor}/bin/kapacitord -config ${kapacitorConf}";
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User = "kapacitor";
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Group = "kapacitor";
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};
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};
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users.users.kapacitor = {
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uid = config.ids.uids.kapacitor;
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description = "Kapacitor user";
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home = cfg.dataDir;
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};
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users.groups.kapacitor = {
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gid = config.ids.gids.kapacitor;
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};
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};
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}
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