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722 lines
23 KiB
722 lines
23 KiB
{ options, config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.grafana;
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opt = options.services.grafana;
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declarativePlugins = pkgs.linkFarm "grafana-plugins" (builtins.map (pkg: { name = pkg.pname; path = pkg; }) cfg.declarativePlugins);
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useMysql = cfg.database.type == "mysql";
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usePostgresql = cfg.database.type == "postgres";
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envOptions = {
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PATHS_DATA = cfg.dataDir;
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PATHS_PLUGINS = if builtins.isNull cfg.declarativePlugins then "${cfg.dataDir}/plugins" else declarativePlugins;
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PATHS_LOGS = "${cfg.dataDir}/log";
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SERVER_PROTOCOL = cfg.protocol;
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SERVER_HTTP_ADDR = cfg.addr;
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SERVER_HTTP_PORT = cfg.port;
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SERVER_SOCKET = cfg.socket;
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SERVER_DOMAIN = cfg.domain;
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SERVER_ROOT_URL = cfg.rootUrl;
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SERVER_STATIC_ROOT_PATH = cfg.staticRootPath;
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SERVER_CERT_FILE = cfg.certFile;
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SERVER_CERT_KEY = cfg.certKey;
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DATABASE_TYPE = cfg.database.type;
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DATABASE_HOST = cfg.database.host;
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DATABASE_NAME = cfg.database.name;
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DATABASE_USER = cfg.database.user;
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DATABASE_PASSWORD = cfg.database.password;
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DATABASE_PATH = cfg.database.path;
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DATABASE_CONN_MAX_LIFETIME = cfg.database.connMaxLifetime;
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SECURITY_ADMIN_USER = cfg.security.adminUser;
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SECURITY_ADMIN_PASSWORD = cfg.security.adminPassword;
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SECURITY_SECRET_KEY = cfg.security.secretKey;
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USERS_ALLOW_SIGN_UP = boolToString cfg.users.allowSignUp;
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USERS_ALLOW_ORG_CREATE = boolToString cfg.users.allowOrgCreate;
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USERS_AUTO_ASSIGN_ORG = boolToString cfg.users.autoAssignOrg;
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USERS_AUTO_ASSIGN_ORG_ROLE = cfg.users.autoAssignOrgRole;
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AUTH_ANONYMOUS_ENABLED = boolToString cfg.auth.anonymous.enable;
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AUTH_ANONYMOUS_ORG_NAME = cfg.auth.anonymous.org_name;
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AUTH_ANONYMOUS_ORG_ROLE = cfg.auth.anonymous.org_role;
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AUTH_GOOGLE_ENABLED = boolToString cfg.auth.google.enable;
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AUTH_GOOGLE_ALLOW_SIGN_UP = boolToString cfg.auth.google.allowSignUp;
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AUTH_GOOGLE_CLIENT_ID = cfg.auth.google.clientId;
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ANALYTICS_REPORTING_ENABLED = boolToString cfg.analytics.reporting.enable;
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SMTP_ENABLED = boolToString cfg.smtp.enable;
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SMTP_HOST = cfg.smtp.host;
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SMTP_USER = cfg.smtp.user;
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SMTP_PASSWORD = cfg.smtp.password;
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SMTP_FROM_ADDRESS = cfg.smtp.fromAddress;
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} // cfg.extraOptions;
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datasourceConfiguration = {
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apiVersion = 1;
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datasources = cfg.provision.datasources;
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};
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datasourceFile = pkgs.writeText "datasource.yaml" (builtins.toJSON datasourceConfiguration);
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dashboardConfiguration = {
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apiVersion = 1;
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providers = cfg.provision.dashboards;
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};
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dashboardFile = pkgs.writeText "dashboard.yaml" (builtins.toJSON dashboardConfiguration);
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notifierConfiguration = {
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apiVersion = 1;
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notifiers = cfg.provision.notifiers;
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};
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notifierFile = pkgs.writeText "notifier.yaml" (builtins.toJSON notifierConfiguration);
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provisionConfDir = pkgs.runCommand "grafana-provisioning" { } ''
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mkdir -p $out/{datasources,dashboards,notifiers}
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ln -sf ${datasourceFile} $out/datasources/datasource.yaml
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ln -sf ${dashboardFile} $out/dashboards/dashboard.yaml
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ln -sf ${notifierFile} $out/notifiers/notifier.yaml
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'';
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# Get a submodule without any embedded metadata:
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_filter = x: filterAttrs (k: v: k != "_module") x;
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# http://docs.grafana.org/administration/provisioning/#datasources
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grafanaTypes.datasourceConfig = types.submodule {
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options = {
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name = mkOption {
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type = types.str;
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description = "Name of the datasource. Required.";
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};
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type = mkOption {
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type = types.str;
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description = "Datasource type. Required.";
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};
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access = mkOption {
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type = types.enum ["proxy" "direct"];
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default = "proxy";
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description = "Access mode. proxy or direct (Server or Browser in the UI). Required.";
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};
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orgId = mkOption {
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type = types.int;
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default = 1;
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description = "Org id. will default to orgId 1 if not specified.";
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};
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url = mkOption {
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type = types.str;
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description = "Url of the datasource.";
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};
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password = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "Database password, if used.";
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};
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user = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "Database user, if used.";
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};
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database = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "Database name, if used.";
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};
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basicAuth = mkOption {
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type = types.nullOr types.bool;
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default = null;
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description = "Enable/disable basic auth.";
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};
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basicAuthUser = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "Basic auth username.";
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};
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basicAuthPassword = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = "Basic auth password.";
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};
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withCredentials = mkOption {
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type = types.bool;
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default = false;
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description = "Enable/disable with credentials headers.";
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};
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isDefault = mkOption {
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type = types.bool;
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default = false;
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description = "Mark as default datasource. Max one per org.";
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};
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jsonData = mkOption {
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type = types.nullOr types.attrs;
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default = null;
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description = "Datasource specific configuration.";
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};
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secureJsonData = mkOption {
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type = types.nullOr types.attrs;
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default = null;
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description = "Datasource specific secure configuration.";
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};
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version = mkOption {
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type = types.int;
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default = 1;
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description = "Version.";
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};
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editable = mkOption {
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type = types.bool;
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default = false;
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description = "Allow users to edit datasources from the UI.";
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};
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};
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};
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# http://docs.grafana.org/administration/provisioning/#dashboards
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grafanaTypes.dashboardConfig = types.submodule {
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options = {
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name = mkOption {
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type = types.str;
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default = "default";
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description = "Provider name.";
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};
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orgId = mkOption {
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type = types.int;
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default = 1;
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description = "Organization ID.";
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};
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folder = mkOption {
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type = types.str;
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default = "";
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description = "Add dashboards to the specified folder.";
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};
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type = mkOption {
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type = types.str;
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default = "file";
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description = "Dashboard provider type.";
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};
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disableDeletion = mkOption {
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type = types.bool;
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default = false;
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description = "Disable deletion when JSON file is removed.";
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};
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updateIntervalSeconds = mkOption {
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type = types.int;
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default = 10;
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description = "How often Grafana will scan for changed dashboards.";
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};
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options = {
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path = mkOption {
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type = types.path;
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description = "Path grafana will watch for dashboards.";
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};
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};
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};
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};
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grafanaTypes.notifierConfig = types.submodule {
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options = {
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name = mkOption {
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type = types.str;
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default = "default";
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description = "Notifier name.";
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};
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type = mkOption {
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type = types.enum ["dingding" "discord" "email" "googlechat" "hipchat" "kafka" "line" "teams" "opsgenie" "pagerduty" "prometheus-alertmanager" "pushover" "sensu" "sensugo" "slack" "telegram" "threema" "victorops" "webhook"];
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description = "Notifier type.";
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};
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uid = mkOption {
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type = types.str;
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description = "Unique notifier identifier.";
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};
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org_id = mkOption {
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type = types.int;
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default = 1;
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description = "Organization ID.";
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};
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org_name = mkOption {
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type = types.str;
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default = "Main Org.";
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description = "Organization name.";
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};
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is_default = mkOption {
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type = types.bool;
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description = "Is the default notifier.";
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default = false;
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};
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send_reminder = mkOption {
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type = types.bool;
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default = true;
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description = "Should the notifier be sent reminder notifications while alerts continue to fire.";
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};
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frequency = mkOption {
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type = types.str;
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default = "5m";
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description = "How frequently should the notifier be sent reminders.";
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};
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disable_resolve_message = mkOption {
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type = types.bool;
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default = false;
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description = "Turn off the message that sends when an alert returns to OK.";
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};
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settings = mkOption {
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type = types.nullOr types.attrs;
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default = null;
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description = "Settings for the notifier type.";
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};
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secure_settings = mkOption {
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type = types.nullOr types.attrs;
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default = null;
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description = "Secure settings for the notifier type.";
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};
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};
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};
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in {
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options.services.grafana = {
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enable = mkEnableOption "grafana";
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protocol = mkOption {
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description = "Which protocol to listen.";
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default = "http";
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type = types.enum ["http" "https" "socket"];
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};
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addr = mkOption {
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description = "Listening 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 = "Listening port.";
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default = 3000;
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type = types.port;
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};
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socket = mkOption {
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description = "Listening socket.";
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default = "/run/grafana/grafana.sock";
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type = types.str;
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};
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domain = mkOption {
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description = "The public facing domain name used to access grafana from a browser.";
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default = "localhost";
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type = types.str;
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};
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rootUrl = mkOption {
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description = "Full public facing url.";
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default = "%(protocol)s://%(domain)s:%(http_port)s/";
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type = types.str;
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};
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certFile = mkOption {
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description = "Cert file for ssl.";
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default = "";
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type = types.str;
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};
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certKey = mkOption {
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description = "Cert key for ssl.";
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default = "";
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type = types.str;
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};
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staticRootPath = mkOption {
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description = "Root path for static assets.";
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default = "${cfg.package}/share/grafana/public";
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defaultText = literalExpression ''"''${package}/share/grafana/public"'';
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type = types.str;
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};
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package = mkOption {
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description = "Package to use.";
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default = pkgs.grafana;
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defaultText = literalExpression "pkgs.grafana";
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type = types.package;
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};
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declarativePlugins = mkOption {
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type = with types; nullOr (listOf path);
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default = null;
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description = "If non-null, then a list of packages containing Grafana plugins to install. If set, plugins cannot be manually installed.";
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example = literalExpression "with pkgs.grafanaPlugins; [ grafana-piechart-panel ]";
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# Make sure each plugin is added only once; otherwise building
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# the link farm fails, since the same path is added multiple
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# times.
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apply = x: if isList x then lib.unique x else x;
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};
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dataDir = mkOption {
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description = "Data directory.";
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default = "/var/lib/grafana";
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type = types.path;
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};
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database = {
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type = mkOption {
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description = "Database type.";
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default = "sqlite3";
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type = types.enum ["mysql" "sqlite3" "postgres"];
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};
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host = mkOption {
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description = "Database host.";
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default = "127.0.0.1:3306";
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type = types.str;
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};
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name = mkOption {
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description = "Database name.";
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default = "grafana";
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type = types.str;
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};
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user = mkOption {
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description = "Database user.";
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default = "root";
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type = types.str;
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};
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password = mkOption {
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description = ''
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Database password.
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This option is mutual exclusive with the passwordFile option.
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'';
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default = "";
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type = types.str;
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};
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passwordFile = mkOption {
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description = ''
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File that containts the database password.
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This option is mutual exclusive with the password option.
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'';
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default = null;
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type = types.nullOr types.path;
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};
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path = mkOption {
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description = "Database path.";
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default = "${cfg.dataDir}/data/grafana.db";
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type = types.path;
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};
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connMaxLifetime = mkOption {
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description = ''
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Sets the maximum amount of time (in seconds) a connection may be reused.
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For MySQL this setting should be shorter than the `wait_timeout' variable.
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'';
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default = "unlimited";
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example = 14400;
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type = types.either types.int (types.enum [ "unlimited" ]);
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};
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};
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provision = {
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enable = mkEnableOption "provision";
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datasources = mkOption {
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description = "Grafana datasources configuration.";
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default = [];
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type = types.listOf grafanaTypes.datasourceConfig;
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apply = x: map _filter x;
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};
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dashboards = mkOption {
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description = "Grafana dashboard configuration.";
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default = [];
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type = types.listOf grafanaTypes.dashboardConfig;
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apply = x: map _filter x;
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};
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notifiers = mkOption {
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description = "Grafana notifier configuration.";
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default = [];
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type = types.listOf grafanaTypes.notifierConfig;
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apply = x: map _filter x;
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};
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};
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security = {
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adminUser = mkOption {
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description = "Default admin username.";
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default = "admin";
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type = types.str;
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};
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adminPassword = mkOption {
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description = ''
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Default admin password.
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This option is mutual exclusive with the adminPasswordFile option.
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'';
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default = "admin";
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type = types.str;
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};
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adminPasswordFile = mkOption {
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description = ''
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Default admin password.
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This option is mutual exclusive with the <literal>adminPassword</literal> option.
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'';
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default = null;
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type = types.nullOr types.path;
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};
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secretKey = mkOption {
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description = "Secret key used for signing.";
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default = "SW2YcwTIb9zpOOhoPsMm";
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type = types.str;
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};
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secretKeyFile = mkOption {
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description = "Secret key used for signing.";
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default = null;
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type = types.nullOr types.path;
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};
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};
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smtp = {
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enable = mkEnableOption "smtp";
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host = mkOption {
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description = "Host to connect to.";
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default = "localhost:25";
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type = types.str;
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};
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user = mkOption {
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description = "User used for authentication.";
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default = "";
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type = types.str;
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};
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password = mkOption {
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description = ''
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Password used for authentication.
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This option is mutual exclusive with the passwordFile option.
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'';
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default = "";
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type = types.str;
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};
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passwordFile = mkOption {
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description = ''
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Password used for authentication.
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This option is mutual exclusive with the password option.
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'';
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default = null;
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type = types.nullOr types.path;
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};
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fromAddress = mkOption {
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description = "Email address used for sending.";
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default = "admin@grafana.localhost";
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type = types.str;
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};
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};
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users = {
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allowSignUp = mkOption {
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description = "Disable user signup / registration.";
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default = false;
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type = types.bool;
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};
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allowOrgCreate = mkOption {
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description = "Whether user is allowed to create organizations.";
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default = false;
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type = types.bool;
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};
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autoAssignOrg = mkOption {
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description = "Whether to automatically assign new users to default org.";
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default = true;
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type = types.bool;
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};
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autoAssignOrgRole = mkOption {
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description = "Default role new users will be auto assigned.";
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default = "Viewer";
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type = types.enum ["Viewer" "Editor"];
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};
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};
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auth = {
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anonymous = {
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enable = mkOption {
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description = "Whether to allow anonymous access.";
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default = false;
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type = types.bool;
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};
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org_name = mkOption {
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description = "Which organization to allow anonymous access to.";
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default = "Main Org.";
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type = types.str;
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};
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org_role = mkOption {
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description = "Which role anonymous users have in the organization.";
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default = "Viewer";
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type = types.str;
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};
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};
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google = {
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enable = mkOption {
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description = "Whether to allow Google OAuth2.";
|
|
default = false;
|
|
type = types.bool;
|
|
};
|
|
allowSignUp = mkOption {
|
|
description = "Whether to allow sign up with Google OAuth2.";
|
|
default = false;
|
|
type = types.bool;
|
|
};
|
|
clientId = mkOption {
|
|
description = "Google OAuth2 client ID.";
|
|
default = "";
|
|
type = types.str;
|
|
};
|
|
clientSecretFile = mkOption {
|
|
description = "Google OAuth2 client secret.";
|
|
default = null;
|
|
type = types.nullOr types.path;
|
|
};
|
|
};
|
|
};
|
|
|
|
analytics.reporting = {
|
|
enable = mkOption {
|
|
description = "Whether to allow anonymous usage reporting to stats.grafana.net.";
|
|
default = true;
|
|
type = types.bool;
|
|
};
|
|
};
|
|
|
|
extraOptions = mkOption {
|
|
description = ''
|
|
Extra configuration options passed as env variables as specified in
|
|
<link xlink:href="http://docs.grafana.org/installation/configuration/">documentation</link>,
|
|
but without GF_ prefix
|
|
'';
|
|
default = {};
|
|
type = with types; attrsOf (either str path);
|
|
};
|
|
};
|
|
|
|
config = mkIf cfg.enable {
|
|
warnings = flatten [
|
|
(optional (
|
|
cfg.database.password != opt.database.password.default ||
|
|
cfg.security.adminPassword != opt.security.adminPassword.default
|
|
) "Grafana passwords will be stored as plaintext in the Nix store!")
|
|
(optional (
|
|
any (x: x.password != null || x.basicAuthPassword != null || x.secureJsonData != null) cfg.provision.datasources
|
|
) "Datasource passwords will be stored as plaintext in the Nix store!")
|
|
(optional (
|
|
any (x: x.secure_settings != null) cfg.provision.notifiers
|
|
) "Notifier secure settings will be stored as plaintext in the Nix store!")
|
|
];
|
|
|
|
environment.systemPackages = [ cfg.package ];
|
|
|
|
assertions = [
|
|
{
|
|
assertion = cfg.database.password != opt.database.password.default -> cfg.database.passwordFile == null;
|
|
message = "Cannot set both password and passwordFile";
|
|
}
|
|
{
|
|
assertion = cfg.security.adminPassword != opt.security.adminPassword.default -> cfg.security.adminPasswordFile == null;
|
|
message = "Cannot set both adminPassword and adminPasswordFile";
|
|
}
|
|
{
|
|
assertion = cfg.security.secretKey != opt.security.secretKey.default -> cfg.security.secretKeyFile == null;
|
|
message = "Cannot set both secretKey and secretKeyFile";
|
|
}
|
|
{
|
|
assertion = cfg.smtp.password != opt.smtp.password.default -> cfg.smtp.passwordFile == null;
|
|
message = "Cannot set both password and passwordFile";
|
|
}
|
|
];
|
|
|
|
systemd.services.grafana = {
|
|
description = "Grafana Service Daemon";
|
|
wantedBy = ["multi-user.target"];
|
|
after = ["networking.target"] ++ lib.optional usePostgresql "postgresql.service" ++ lib.optional useMysql "mysql.service";
|
|
environment = {
|
|
QT_QPA_PLATFORM = "offscreen";
|
|
} // mapAttrs' (n: v: nameValuePair "GF_${n}" (toString v)) envOptions;
|
|
script = ''
|
|
set -o errexit -o pipefail -o nounset -o errtrace
|
|
shopt -s inherit_errexit
|
|
|
|
${optionalString (cfg.auth.google.clientSecretFile != null) ''
|
|
GF_AUTH_GOOGLE_CLIENT_SECRET="$(<${escapeShellArg cfg.auth.google.clientSecretFile})"
|
|
export GF_AUTH_GOOGLE_CLIENT_SECRET
|
|
''}
|
|
${optionalString (cfg.database.passwordFile != null) ''
|
|
GF_DATABASE_PASSWORD="$(<${escapeShellArg cfg.database.passwordFile})"
|
|
export GF_DATABASE_PASSWORD
|
|
''}
|
|
${optionalString (cfg.security.adminPasswordFile != null) ''
|
|
GF_SECURITY_ADMIN_PASSWORD="$(<${escapeShellArg cfg.security.adminPasswordFile})"
|
|
export GF_SECURITY_ADMIN_PASSWORD
|
|
''}
|
|
${optionalString (cfg.security.secretKeyFile != null) ''
|
|
GF_SECURITY_SECRET_KEY="$(<${escapeShellArg cfg.security.secretKeyFile})"
|
|
export GF_SECURITY_SECRET_KEY
|
|
''}
|
|
${optionalString (cfg.smtp.passwordFile != null) ''
|
|
GF_SMTP_PASSWORD="$(<${escapeShellArg cfg.smtp.passwordFile})"
|
|
export GF_SMTP_PASSWORD
|
|
''}
|
|
${optionalString cfg.provision.enable ''
|
|
export GF_PATHS_PROVISIONING=${provisionConfDir};
|
|
''}
|
|
exec ${cfg.package}/bin/grafana-server -homepath ${cfg.dataDir}
|
|
'';
|
|
serviceConfig = {
|
|
WorkingDirectory = cfg.dataDir;
|
|
User = "grafana";
|
|
RuntimeDirectory = "grafana";
|
|
RuntimeDirectoryMode = "0755";
|
|
# Hardening
|
|
AmbientCapabilities = lib.mkIf (cfg.port < 1024) [ "CAP_NET_BIND_SERVICE" ];
|
|
CapabilityBoundingSet = if (cfg.port < 1024) then [ "CAP_NET_BIND_SERVICE" ] else [ "" ];
|
|
DeviceAllow = [ "" ];
|
|
LockPersonality = true;
|
|
NoNewPrivileges = true;
|
|
PrivateDevices = true;
|
|
PrivateTmp = true;
|
|
ProtectClock = true;
|
|
ProtectControlGroups = true;
|
|
ProtectHome = true;
|
|
ProtectHostname = true;
|
|
ProtectKernelLogs = true;
|
|
ProtectKernelModules = true;
|
|
ProtectKernelTunables = true;
|
|
ProtectProc = "invisible";
|
|
ProtectSystem = "full";
|
|
RemoveIPC = true;
|
|
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
|
|
RestrictNamespaces = true;
|
|
RestrictRealtime = true;
|
|
RestrictSUIDSGID = true;
|
|
SystemCallArchitectures = "native";
|
|
# Upstream grafana is not setting SystemCallFilter for compatibility
|
|
# reasons, see https://github.com/grafana/grafana/pull/40176
|
|
SystemCallFilter = [ "@system-service" "~@privileged" "~@resources" ];
|
|
UMask = "0027";
|
|
};
|
|
preStart = ''
|
|
ln -fs ${cfg.package}/share/grafana/conf ${cfg.dataDir}
|
|
ln -fs ${cfg.package}/share/grafana/tools ${cfg.dataDir}
|
|
'';
|
|
};
|
|
|
|
users.users.grafana = {
|
|
uid = config.ids.uids.grafana;
|
|
description = "Grafana user";
|
|
home = cfg.dataDir;
|
|
createHome = true;
|
|
group = "grafana";
|
|
};
|
|
users.groups.grafana = {};
|
|
};
|
|
}
|
|
|