nixos/graphite: update docs, add graphite pager
This commit is contained in:
Jaka Hudoklin
parent
38ed4d4d0f
commit
09c8d909fb
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@ -24,6 +24,8 @@ let
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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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@ -83,13 +85,21 @@ in {
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api = {
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enable = mkOption {
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description = "Whether to enable graphite api.";
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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.readthedocs.org/en/1.0/index.html"/>
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'';
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default = false;
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type = types.uniq types.bool;
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};
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finders = mkOption {
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description = "List of finder plugins load.";
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description = "List of finder plugins to load.";
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default = [];
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example = [ pkgs.python27Packages.graphite_influxdb ];
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type = types.listOf types.package;
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@ -301,170 +311,238 @@ in {
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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.uniq 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.host}:${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 = literalExample ''
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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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};
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###### implementation
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config = mkIf (
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cfg.carbon.enableAggregator ||
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cfg.carbon.enableCache ||
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cfg.carbon.enableRelay ||
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cfg.web.enable ||
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cfg.api.enable ||
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cfg.seyren.enable
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) {
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systemd.services.carbonCache = {
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enable = cfg.carbon.enableCache;
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description = "Graphite Data Storage Backend";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.twisted}/bin/twistd ${carbonOpts "carbon-cache"}";
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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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mkdir -p ${cfg.dataDir}/whisper
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chmod 0700 ${cfg.dataDir}/whisper
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chown -R graphite:graphite ${cfg.dataDir}
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'';
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};
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systemd.services.carbonAggregator = {
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enable = cfg.carbon.enableAggregator;
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description = "Carbon Data Aggregator";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.twisted}/bin/twistd ${carbonOpts "carbon-aggregator"}";
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User = "graphite";
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Group = "graphite";
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};
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};
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systemd.services.carbonRelay = {
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enable = cfg.carbon.enableRelay;
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description = "Carbon Data Relay";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.twisted}/bin/twistd ${carbonOpts "carbon-relay"}";
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User = "graphite";
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Group = "graphite";
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};
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};
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systemd.services.graphiteWeb = {
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enable = cfg.web.enable;
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description = "Graphite Web Interface";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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path = [ pkgs.perl ];
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environment = {
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PYTHONPATH = "${pkgs.python27Packages.graphite_web}/lib/python2.7/site-packages";
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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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};
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serviceConfig = {
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ExecStart = ''
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${pkgs.python27Packages.waitress}/bin/waitress-serve \
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--host=${cfg.web.host} --port=${toString cfg.web.port} \
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--call django.core.handlers.wsgi:WSGIHandler'';
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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 ${dataDir}/{whisper/,log/webapp/}
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# populate database
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${pkgs.python27Packages.graphite_web}/bin/manage-graphite.py syncdb --noinput
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# create index
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${pkgs.python27Packages.graphite_web}/bin/build-index.sh
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touch ${dataDir}/db-created
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config = mkMerge [
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(mkIf cfg.carbon.enableCache {
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systemd.services.carbonCache = {
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description = "Graphite Data Storage Backend";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.twisted}/bin/twistd ${carbonOpts "carbon-cache"}";
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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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mkdir -p ${cfg.dataDir}/whisper
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chmod 0700 ${cfg.dataDir}/whisper
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chown -R graphite:graphite ${cfg.dataDir}
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fi
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'';
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};
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systemd.services.graphiteApi = {
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enable = cfg.api.enable;
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description = "Graphite Api Interface";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = {
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PYTHONPATH =
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"${cfg.api.package}/lib/python2.7/site-packages:" +
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concatMapStringsSep ":" (f: f + "/lib/python2.7/site-packages") cfg.api.finders;
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GRAPHITE_API_CONFIG = graphiteApiConfig;
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LD_LIBRARY_PATH = "${pkgs.cairo}/lib";
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};
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serviceConfig = {
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ExecStart = ''
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${pkgs.python27Packages.waitress}/bin/waitress-serve \
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--host=${cfg.api.host} --port=${toString cfg.api.port} \
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graphite_api.app:app
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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}/cache/
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chmod 0700 ${dataDir}/cache/
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})
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touch ${dataDir}/db-created
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chown -R graphite:graphite ${cfg.dataDir}
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fi
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'';
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};
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systemd.services.seyren = {
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enable = cfg.seyren.enable;
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description = "Graphite Alerting Dashboard";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" "mongodb.service" ];
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environment = seyrenConfig;
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serviceConfig = {
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ExecStart = "${pkgs.seyren}/bin/seyren -httpPort ${toString cfg.seyren.port}";
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WorkingDirectory = dataDir;
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User = "graphite";
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Group = "graphite";
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(mkIf cfg.carbon.enableAggregator {
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systemd.services.carbonAggregator = {
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enable = cfg.carbon.enableAggregator;
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description = "Carbon Data Aggregator";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.twisted}/bin/twistd ${carbonOpts "carbon-aggregator"}";
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User = "graphite";
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Group = "graphite";
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};
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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}
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chown -R graphite:graphite ${dataDir}
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fi
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'';
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};
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})
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services.mongodb.enable = mkDefault cfg.seyren.enable;
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(mkIf cfg.carbon.enableRelay {
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systemd.services.carbonRelay = {
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description = "Carbon Data Relay";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = carbonEnv;
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serviceConfig = {
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ExecStart = "${pkgs.twisted}/bin/twistd ${carbonOpts "carbon-relay"}";
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User = "graphite";
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Group = "graphite";
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};
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};
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})
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environment.systemPackages = [
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pkgs.pythonPackages.carbon
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pkgs.python27Packages.graphite_web
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pkgs.python27Packages.waitress
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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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users.extraUsers = singleton {
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name = "graphite";
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uid = config.ids.uids.graphite;
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description = "Graphite daemon user";
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home = dataDir;
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};
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users.extraGroups.graphite.gid = config.ids.gids.graphite;
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};
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(mkIf cfg.web.enable {
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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-interfaces.target" ];
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path = [ pkgs.perl ];
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environment = {
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PYTHONPATH = "${pkgs.python27Packages.graphite_web}/lib/python2.7/site-packages";
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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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};
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serviceConfig = {
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ExecStart = ''
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${pkgs.python27Packages.waitress}/bin/waitress-serve \
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--host=${cfg.web.host} --port=${toString cfg.web.port} \
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--call django.core.handlers.wsgi:WSGIHandler'';
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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 ${dataDir}/{whisper/,log/webapp/}
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# populate database
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${pkgs.python27Packages.graphite_web}/bin/manage-graphite.py syncdb --noinput
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# create index
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${pkgs.python27Packages.graphite_web}/bin/build-index.sh
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touch ${dataDir}/db-created
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chown -R graphite:graphite ${cfg.dataDir}
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fi
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'';
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};
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environment.systemPackages = [ pkgs.python27Packages.graphite_web ];
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})
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(mkIf cfg.api.enable {
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systemd.services.graphiteApi = {
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description = "Graphite Api Interface";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" ];
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environment = {
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PYTHONPATH =
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"${cfg.api.package}/lib/python2.7/site-packages:" +
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concatMapStringsSep ":" (f: f + "/lib/python2.7/site-packages") cfg.api.finders;
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GRAPHITE_API_CONFIG = graphiteApiConfig;
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LD_LIBRARY_PATH = "${pkgs.cairo}/lib";
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};
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serviceConfig = {
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ExecStart = ''
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${pkgs.python27Packages.waitress}/bin/waitress-serve \
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--host=${cfg.api.host} --port=${toString cfg.api.port} \
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graphite_api.app:app
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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}/cache/
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chmod 0700 ${dataDir}/cache/
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touch ${dataDir}/db-created
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chown -R graphite:graphite ${cfg.dataDir}
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fi
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'';
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};
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})
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(mkIf cfg.seyren.enable {
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systemd.services.seyren = {
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description = "Graphite Alerting Dashboard";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" "mongodb.service" ];
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environment = seyrenConfig;
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serviceConfig = {
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ExecStart = "${pkgs.seyren}/bin/seyren -httpPort ${toString cfg.seyren.port}";
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WorkingDirectory = dataDir;
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User = "graphite";
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Group = "graphite";
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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}
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chown -R graphite:graphite ${dataDir}
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fi
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'';
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};
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services.mongodb.enable = mkDefault true;
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})
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(mkIf cfg.pager.enable {
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systemd.services.graphitePager = {
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description = "Graphite Pager Alerting Daemon";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-interfaces.target" "redis.service" ];
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environment = {
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REDIS_URL = cfg.pager.redisUrl;
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GRAPHITE_URL = cfg.pager.graphiteUrl;
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};
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serviceConfig = {
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ExecStart = "${pkgs.pythonPackages.graphite_pager}/bin/graphite-pager --config ${pagerConfig}";
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User = "graphite";
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Group = "graphite";
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};
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};
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services.redis.enable = mkDefault true;
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environment.systemPackages = [ pkgs.pythonPackages.graphite_pager ];
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})
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{
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users.extraUsers = singleton {
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name = "graphite";
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uid = config.ids.uids.graphite;
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description = "Graphite daemon user";
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home = dataDir;
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};
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users.extraGroups.graphite.gid = config.ids.gids.graphite;
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}
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];
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}
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