mirror of
https://github.com/NixOS/nixpkgs.git
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7325ad9ab7
instead of depending on specific versions in the django_tagging_0_4_3 and graphite_web derivations. This should fix: https://github.com/NixOS/nixpkgs/pull/30277#discussion_r145393088 This was joint work of @basvandijk and @layus at NixCon 2017.
651 lines
20 KiB
Nix
651 lines
20 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.graphite;
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writeTextOrNull = f: t: mapNullable (pkgs.writeTextDir f) t;
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dataDir = cfg.dataDir;
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staticDir = cfg.dataDir + "/static";
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graphiteLocalSettingsDir = pkgs.runCommand "graphite_local_settings"
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{inherit graphiteLocalSettings;} ''
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mkdir -p $out
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ln -s $graphiteLocalSettings $out/graphite_local_settings.py
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'';
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graphiteLocalSettings = pkgs.writeText "graphite_local_settings.py" (
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"STATIC_ROOT = '${staticDir}'\n" +
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optionalString (! isNull config.time.timeZone) "TIME_ZONE = '${config.time.timeZone}'\n"
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+ cfg.web.extraConfig
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);
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graphiteApiConfig = pkgs.writeText "graphite-api.yaml" ''
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search_index: ${dataDir}/index
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${optionalString (!isNull config.time.timeZone) ''time_zone: ${config.time.timeZone}''}
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${optionalString (cfg.api.finders != []) ''finders:''}
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${concatMapStringsSep "\n" (f: " - " + f.moduleName) cfg.api.finders}
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${optionalString (cfg.api.functions != []) ''functions:''}
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${concatMapStringsSep "\n" (f: " - " + f) cfg.api.functions}
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${cfg.api.extraConfig}
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'';
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seyrenConfig = {
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SEYREN_URL = cfg.seyren.seyrenUrl;
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MONGO_URL = cfg.seyren.mongoUrl;
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GRAPHITE_URL = cfg.seyren.graphiteUrl;
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} // cfg.seyren.extraConfig;
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pagerConfig = pkgs.writeText "alarms.yaml" cfg.pager.alerts;
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configDir = pkgs.buildEnv {
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name = "graphite-config";
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paths = lists.filter (el: el != null) [
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(writeTextOrNull "carbon.conf" cfg.carbon.config)
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(writeTextOrNull "storage-aggregation.conf" cfg.carbon.storageAggregation)
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(writeTextOrNull "storage-schemas.conf" cfg.carbon.storageSchemas)
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(writeTextOrNull "blacklist.conf" cfg.carbon.blacklist)
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(writeTextOrNull "whitelist.conf" cfg.carbon.whitelist)
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(writeTextOrNull "rewrite-rules.conf" cfg.carbon.rewriteRules)
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(writeTextOrNull "relay-rules.conf" cfg.carbon.relayRules)
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(writeTextOrNull "aggregation-rules.conf" cfg.carbon.aggregationRules)
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];
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};
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carbonOpts = name: with config.ids; ''
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--nodaemon --syslog --prefix=${name} --pidfile /run/${name}/${name}.pid ${name}
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'';
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mkPidFileDir = name: ''
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mkdir -p /run/${name}
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chmod 0700 /run/${name}
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chown -R graphite:graphite /run/${name}
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'';
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carbonEnv = {
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PYTHONPATH = let
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cenv = pkgs.python.buildEnv.override {
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extraLibs = [ pkgs.python27Packages.carbon ];
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};
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cenvPack = "${cenv}/${pkgs.python.sitePackages}";
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# opt/graphite/lib contains twisted.plugins.carbon-cache
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in "${cenvPack}/opt/graphite/lib:${cenvPack}";
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GRAPHITE_ROOT = dataDir;
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GRAPHITE_CONF_DIR = configDir;
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GRAPHITE_STORAGE_DIR = dataDir;
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};
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in {
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###### interface
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options.services.graphite = {
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dataDir = mkOption {
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type = types.path;
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default = "/var/db/graphite";
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description = ''
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Data directory for graphite.
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'';
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};
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web = {
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enable = mkOption {
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description = "Whether to enable graphite web frontend.";
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default = false;
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type = types.bool;
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};
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listenAddress = mkOption {
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description = "Graphite web frontend listen address.";
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default = "127.0.0.1";
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type = types.str;
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};
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port = mkOption {
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description = "Graphite web frontend port.";
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default = 8080;
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type = types.int;
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};
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extraConfig = mkOption {
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type = types.str;
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default = "";
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description = ''
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Graphite webapp settings. See:
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<link xlink:href="http://graphite.readthedocs.io/en/latest/config-local-settings.html"/>
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'';
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};
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};
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api = {
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enable = mkOption {
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description = ''
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Whether to enable graphite api. Graphite api is lightweight alternative
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to graphite web, with api and without dashboard. It's advised to use
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grafana as alternative dashboard and influxdb as alternative to
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graphite carbon.
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For more information visit
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<link xlink:href="http://graphite-api.readthedocs.org/en/latest/"/>
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'';
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default = false;
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type = types.bool;
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};
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finders = mkOption {
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description = "List of finder plugins to load.";
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default = [];
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example = literalExample "[ pkgs.python27Packages.graphite_influxdb ]";
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type = types.listOf types.package;
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};
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functions = mkOption {
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description = "List of functions to load.";
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default = [
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"graphite_api.functions.SeriesFunctions"
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"graphite_api.functions.PieFunctions"
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];
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type = types.listOf types.str;
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};
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listenAddress = mkOption {
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description = "Graphite web service listen address.";
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default = "127.0.0.1";
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type = types.str;
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};
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port = mkOption {
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description = "Graphite api service port.";
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default = 8080;
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type = types.int;
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};
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package = mkOption {
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description = "Package to use for graphite api.";
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default = pkgs.python27Packages.graphite_api;
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defaultText = "pkgs.python27Packages.graphite_api";
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type = types.package;
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};
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extraConfig = mkOption {
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description = "Extra configuration for graphite api.";
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default = ''
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whisper:
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directories:
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- ${dataDir}/whisper
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'';
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example = ''
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allowed_origins:
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- dashboard.example.com
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cheat_times: true
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influxdb:
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host: localhost
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port: 8086
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user: influxdb
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pass: influxdb
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db: metrics
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cache:
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CACHE_TYPE: 'filesystem'
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CACHE_DIR: '/tmp/graphite-api-cache'
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'';
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type = types.lines;
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};
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};
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carbon = {
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config = mkOption {
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description = "Content of carbon configuration file.";
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default = ''
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[cache]
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# Listen on localhost by default for security reasons
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UDP_RECEIVER_INTERFACE = 127.0.0.1
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PICKLE_RECEIVER_INTERFACE = 127.0.0.1
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LINE_RECEIVER_INTERFACE = 127.0.0.1
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CACHE_QUERY_INTERFACE = 127.0.0.1
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# Do not log every update
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LOG_UPDATES = False
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LOG_CACHE_HITS = False
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'';
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type = types.str;
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};
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enableCache = mkOption {
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description = "Whether to enable carbon cache, the graphite storage daemon.";
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default = false;
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type = types.bool;
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};
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storageAggregation = mkOption {
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description = "Defines how to aggregate data to lower-precision retentions.";
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default = null;
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type = types.uniq (types.nullOr types.string);
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example = ''
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[all_min]
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pattern = \.min$
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xFilesFactor = 0.1
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aggregationMethod = min
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'';
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};
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storageSchemas = mkOption {
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description = "Defines retention rates for storing metrics.";
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default = "";
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type = types.uniq (types.nullOr types.string);
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example = ''
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[apache_busyWorkers]
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pattern = ^servers\.www.*\.workers\.busyWorkers$
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retentions = 15s:7d,1m:21d,15m:5y
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'';
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};
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blacklist = mkOption {
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description = "Any metrics received which match one of the experssions will be dropped.";
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default = null;
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type = types.uniq (types.nullOr types.string);
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example = "^some\.noisy\.metric\.prefix\..*";
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};
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whitelist = mkOption {
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description = "Only metrics received which match one of the experssions will be persisted.";
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default = null;
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type = types.uniq (types.nullOr types.string);
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example = ".*";
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};
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rewriteRules = mkOption {
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description = ''
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Regular expression patterns that can be used to rewrite metric names
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in a search and replace fashion.
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'';
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default = null;
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type = types.uniq (types.nullOr types.string);
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example = ''
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[post]
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_sum$ =
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_avg$ =
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'';
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};
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enableRelay = mkOption {
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description = "Whether to enable carbon relay, the carbon replication and sharding service.";
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default = false;
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type = types.bool;
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};
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relayRules = mkOption {
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description = "Relay rules are used to send certain metrics to a certain backend.";
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default = null;
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type = types.uniq (types.nullOr types.string);
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example = ''
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[example]
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pattern = ^mydata\.foo\..+
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servers = 10.1.2.3, 10.1.2.4:2004, myserver.mydomain.com
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'';
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};
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enableAggregator = mkOption {
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description = "Whether to enable carbon aggregator, the carbon buffering service.";
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default = false;
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type = types.bool;
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};
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aggregationRules = mkOption {
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description = "Defines if and how received metrics will be aggregated.";
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default = null;
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type = types.uniq (types.nullOr types.string);
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example = ''
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<env>.applications.<app>.all.requests (60) = sum <env>.applications.<app>.*.requests
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<env>.applications.<app>.all.latency (60) = avg <env>.applications.<app>.*.latency
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'';
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};
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};
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seyren = {
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enable = mkOption {
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description = "Whether to enable seyren service.";
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default = false;
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type = types.bool;
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};
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port = mkOption {
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description = "Seyren listening port.";
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default = 8081;
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type = types.int;
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};
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seyrenUrl = mkOption {
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default = "http://localhost:${toString cfg.seyren.port}/";
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description = "Host where seyren is accessible.";
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type = types.str;
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};
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graphiteUrl = mkOption {
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default = "http://${cfg.web.listenAddress}:${toString cfg.web.port}";
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description = "Host where graphite service runs.";
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type = types.str;
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};
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mongoUrl = mkOption {
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default = "mongodb://${config.services.mongodb.bind_ip}:27017/seyren";
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description = "Mongodb connection string.";
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type = types.str;
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};
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extraConfig = mkOption {
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default = {};
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description = ''
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Extra seyren configuration. See
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<link xlink:href='https://github.com/scobal/seyren#config' />
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'';
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type = types.attrsOf types.str;
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example = literalExample ''
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{
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GRAPHITE_USERNAME = "user";
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GRAPHITE_PASSWORD = "pass";
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}
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'';
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};
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};
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pager = {
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enable = mkOption {
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description = ''
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Whether to enable graphite-pager service. For more information visit
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<link xlink:href="https://github.com/seatgeek/graphite-pager"/>
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'';
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default = false;
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type = types.bool;
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};
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redisUrl = mkOption {
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description = "Redis connection string.";
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default = "redis://localhost:${toString config.services.redis.port}/";
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type = types.str;
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};
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graphiteUrl = mkOption {
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description = "URL to your graphite service.";
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default = "http://${cfg.web.listenAddress}:${toString cfg.web.port}";
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type = types.str;
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};
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alerts = mkOption {
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description = "Alerts configuration for graphite-pager.";
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default = ''
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alerts:
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- target: constantLine(100)
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warning: 90
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critical: 200
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name: Test
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'';
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example = ''
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pushbullet_key: pushbullet_api_key
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alerts:
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- target: stats.seatgeek.app.deal_quality.venue_info_cache.hit
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warning: .5
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critical: 1
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name: Deal quality venue cache hits
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'';
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type = types.lines;
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};
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};
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beacon = {
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enable = mkEnableOption "graphite beacon";
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config = mkOption {
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description = "Graphite beacon configuration.";
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default = {};
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type = types.attrs;
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};
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};
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};
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###### implementation
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config = mkMerge [
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(mkIf cfg.carbon.enableCache {
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systemd.services.carbonCache = let name = "carbon-cache"; in {
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description = "Graphite Data Storage Backend";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.pythonPackages.twisted}/bin/twistd ${carbonOpts name}";
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User = "graphite";
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Group = "graphite";
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PermissionsStartOnly = true;
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PIDFile="/run/${name}/${name}.pid";
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};
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preStart = mkPidFileDir name + ''
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mkdir -p ${cfg.dataDir}/whisper
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chmod 0700 ${cfg.dataDir}/whisper
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chown graphite:graphite ${cfg.dataDir}
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chown graphite:graphite ${cfg.dataDir}/whisper
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'';
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};
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})
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(mkIf cfg.carbon.enableAggregator {
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systemd.services.carbonAggregator = let name = "carbon-aggregator"; in {
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enable = cfg.carbon.enableAggregator;
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description = "Carbon Data Aggregator";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.pythonPackages.twisted}/bin/twistd ${carbonOpts name}";
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User = "graphite";
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Group = "graphite";
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PIDFile="/run/${name}/${name}.pid";
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};
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preStart = mkPidFileDir name;
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};
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})
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(mkIf cfg.carbon.enableRelay {
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systemd.services.carbonRelay = let name = "carbon-relay"; in {
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description = "Carbon Data Relay";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.pythonPackages.twisted}/bin/twistd ${carbonOpts name}";
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User = "graphite";
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Group = "graphite";
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PIDFile="/run/${name}/${name}.pid";
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};
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preStart = mkPidFileDir name;
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};
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})
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(mkIf (cfg.carbon.enableCache || cfg.carbon.enableAggregator || cfg.carbon.enableRelay) {
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environment.systemPackages = [
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pkgs.pythonPackages.carbon
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];
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})
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(mkIf cfg.web.enable (let
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python27' = pkgs.python27.override {
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packageOverrides = self: super: {
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django = self.django_1_8;
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django_tagging = self.django_tagging_0_4_3;
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};
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};
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pythonPackages = python27'.pkgs;
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in {
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systemd.services.graphiteWeb = {
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description = "Graphite Web Interface";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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path = [ pkgs.perl ];
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environment = {
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PYTHONPATH = let
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penv = pkgs.python.buildEnv.override {
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extraLibs = [
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pythonPackages.graphite_web
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pythonPackages.pysqlite
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];
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};
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penvPack = "${penv}/${pkgs.python.sitePackages}";
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in concatStringsSep ":" [
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"${graphiteLocalSettingsDir}"
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"${penvPack}/opt/graphite/webapp"
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"${penvPack}"
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# explicitly adding pycairo in path because it cannot be imported via buildEnv
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"${pkgs.pythonPackages.pycairo}/${pkgs.python.sitePackages}"
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];
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DJANGO_SETTINGS_MODULE = "graphite.settings";
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GRAPHITE_CONF_DIR = configDir;
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GRAPHITE_STORAGE_DIR = dataDir;
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LD_LIBRARY_PATH = "${pkgs.cairo.out}/lib";
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};
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serviceConfig = {
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ExecStart = ''
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${pkgs.python27Packages.waitress-django}/bin/waitress-serve-django \
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--host=${cfg.web.listenAddress} --port=${toString cfg.web.port}
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'';
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User = "graphite";
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Group = "graphite";
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PermissionsStartOnly = true;
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};
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preStart = ''
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if ! test -e ${dataDir}/db-created; then
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mkdir -p ${dataDir}/{whisper/,log/webapp/}
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chmod 0700 ${dataDir}/{whisper/,log/webapp/}
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${pkgs.pythonPackages.django_1_8}/bin/django-admin.py migrate --noinput
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chown -R graphite:graphite ${dataDir}
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touch ${dataDir}/db-created
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fi
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# Only collect static files when graphite_web changes.
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if ! [ "${dataDir}/current_graphite_web" -ef "${pythonPackages.graphite_web}" ]; then
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mkdir -p ${staticDir}
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${pkgs.pythonPackages.django_1_8}/bin/django-admin.py collectstatic --noinput --clear
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chown -R graphite:graphite ${staticDir}
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ln -sfT "${pythonPackages.graphite_web}" "${dataDir}/current_graphite_web"
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fi
|
|
'';
|
|
};
|
|
|
|
environment.systemPackages = [ pythonPackages.graphite_web ];
|
|
}))
|
|
|
|
(mkIf cfg.api.enable {
|
|
systemd.services.graphiteApi = {
|
|
description = "Graphite Api Interface";
|
|
wantedBy = [ "multi-user.target" ];
|
|
after = [ "network.target" ];
|
|
environment = {
|
|
PYTHONPATH = let
|
|
aenv = pkgs.python.buildEnv.override {
|
|
extraLibs = [ cfg.api.package pkgs.cairo pkgs.pythonPackages.cffi ] ++ cfg.api.finders;
|
|
};
|
|
in "${aenv}/${pkgs.python.sitePackages}";
|
|
GRAPHITE_API_CONFIG = graphiteApiConfig;
|
|
LD_LIBRARY_PATH = "${pkgs.cairo.out}/lib";
|
|
};
|
|
serviceConfig = {
|
|
ExecStart = ''
|
|
${pkgs.python27Packages.waitress}/bin/waitress-serve \
|
|
--host=${cfg.api.listenAddress} --port=${toString cfg.api.port} \
|
|
graphite_api.app:app
|
|
'';
|
|
User = "graphite";
|
|
Group = "graphite";
|
|
PermissionsStartOnly = true;
|
|
};
|
|
preStart = ''
|
|
if ! test -e ${dataDir}/db-created; then
|
|
mkdir -p ${dataDir}/cache/
|
|
chmod 0700 ${dataDir}/cache/
|
|
|
|
chown graphite:graphite ${cfg.dataDir}
|
|
chown -R graphite:graphite ${cfg.dataDir}/cache
|
|
|
|
touch ${dataDir}/db-created
|
|
fi
|
|
'';
|
|
};
|
|
})
|
|
|
|
(mkIf cfg.seyren.enable {
|
|
systemd.services.seyren = {
|
|
description = "Graphite Alerting Dashboard";
|
|
wantedBy = [ "multi-user.target" ];
|
|
after = [ "network.target" "mongodb.service" ];
|
|
environment = seyrenConfig;
|
|
serviceConfig = {
|
|
ExecStart = "${pkgs.seyren}/bin/seyren -httpPort ${toString cfg.seyren.port}";
|
|
WorkingDirectory = dataDir;
|
|
User = "graphite";
|
|
Group = "graphite";
|
|
};
|
|
preStart = ''
|
|
if ! test -e ${dataDir}/db-created; then
|
|
mkdir -p ${dataDir}
|
|
chown graphite:graphite ${dataDir}
|
|
fi
|
|
'';
|
|
};
|
|
|
|
services.mongodb.enable = mkDefault true;
|
|
})
|
|
|
|
(mkIf cfg.pager.enable {
|
|
systemd.services.graphitePager = {
|
|
description = "Graphite Pager Alerting Daemon";
|
|
wantedBy = [ "multi-user.target" ];
|
|
after = [ "network.target" "redis.service" ];
|
|
environment = {
|
|
REDIS_URL = cfg.pager.redisUrl;
|
|
GRAPHITE_URL = cfg.pager.graphiteUrl;
|
|
};
|
|
serviceConfig = {
|
|
ExecStart = "${pkgs.pythonPackages.graphite_pager}/bin/graphite-pager --config ${pagerConfig}";
|
|
User = "graphite";
|
|
Group = "graphite";
|
|
};
|
|
};
|
|
|
|
services.redis.enable = mkDefault true;
|
|
|
|
environment.systemPackages = [ pkgs.pythonPackages.graphite_pager ];
|
|
})
|
|
|
|
(mkIf cfg.beacon.enable {
|
|
systemd.services.graphite-beacon = {
|
|
description = "Grpahite Beacon Alerting Daemon";
|
|
wantedBy = [ "multi-user.target" ];
|
|
serviceConfig = {
|
|
ExecStart = ''
|
|
${pkgs.pythonPackages.graphite_beacon}/bin/graphite-beacon \
|
|
--config=${pkgs.writeText "graphite-beacon.json" (builtins.toJSON cfg.beacon.config)}
|
|
'';
|
|
User = "graphite";
|
|
Group = "graphite";
|
|
};
|
|
};
|
|
})
|
|
|
|
(mkIf (
|
|
cfg.carbon.enableCache || cfg.carbon.enableAggregator || cfg.carbon.enableRelay ||
|
|
cfg.web.enable || cfg.api.enable ||
|
|
cfg.seyren.enable || cfg.pager.enable || cfg.beacon.enable
|
|
) {
|
|
users.extraUsers = singleton {
|
|
name = "graphite";
|
|
uid = config.ids.uids.graphite;
|
|
description = "Graphite daemon user";
|
|
home = dataDir;
|
|
};
|
|
users.extraGroups.graphite.gid = config.ids.gids.graphite;
|
|
})
|
|
];
|
|
}
|