{ config, lib, pkgs, ... }: with lib; let cfg = config.services.grafana; b2s = val: if val then "true" else "false"; envOptions = { PATHS_DATA = cfg.dataDir; PATHS_LOGS = "${cfg.dataDir}/log"; SERVER_PROTOCOL = cfg.protocol; SERVER_HTTP_ADDR = cfg.addr; SERVER_HTTP_PORT = cfg.port; SERVER_DOMAIN = cfg.domain; SERVER_ROOT_URL = cfg.rootUrl; SERVER_STATIC_ROOT_PATH = cfg.staticRootPath; SERVER_CERT_FILE = cfg.certFile; SERVER_CERT_KEY = cfg.certKey; DATABASE_TYPE = cfg.database.type; DATABASE_HOST = cfg.database.host; DATABASE_NAME = cfg.database.name; DATABASE_USER = cfg.database.user; DATABASE_PASSWORD = cfg.database.password; DATABASE_PATH = cfg.database.path; SECURITY_ADMIN_USER = cfg.security.adminUser; SECURITY_ADMIN_PASSWORD = cfg.security.adminPassword; SECURITY_SECRET_KEY = cfg.security.secretKey; USERS_ALLOW_SIGN_UP = b2s cfg.users.allowSignUp; USERS_ALLOW_ORG_CREATE = b2s cfg.users.allowOrgCreate; USERS_AUTO_ASSIGN_ORG = b2s cfg.users.autoAssignOrg; USERS_AUTO_ASSIGN_ORG_ROLE = cfg.users.autoAssignOrgRole; AUTH_ANONYMOUS_ENABLE = b2s cfg.auth.anonymous.enable; } // cfg.extraOptions; in { options.services.grafana = { enable = mkEnableOption "grafana"; protocol = mkOption { description = "Which protocol to listen."; default = "http"; type = types.enum ["http" "https"]; }; addr = mkOption { description = "Listening address."; default = "127.0.0.1"; type = types.str; }; port = mkOption { description = "Listening port."; default = 3000; type = types.int; }; domain = mkOption { description = "The public facing domain name used to access grafana from a browser."; default = "localhost"; type = types.str; }; rootUrl = mkOption { description = "Full public facing url."; default = "%(protocol)s://%(domain)s:%(http_port)s/"; type = types.str; }; certFile = mkOption { description = "Cert file for ssl."; default = ""; type = types.str; }; certKey = mkOption { description = "Cert key for ssl."; default = ""; type = types.str; }; staticRootPath = mkOption { description = "Root path for static assets."; default = "${cfg.package}/share/grafana/public"; type = types.str; }; package = mkOption { description = "Package to use."; default = pkgs.grafana; defaultText = "pkgs.grafana"; type = types.package; }; dataDir = mkOption { description = "Data directory."; default = "/var/lib/grafana"; type = types.path; }; database = { type = mkOption { description = "Database type."; default = "sqlite3"; type = types.enum ["mysql" "sqlite3" "postgresql"]; }; host = mkOption { description = "Database host."; default = "127.0.0.1:3306"; type = types.str; }; name = mkOption { description = "Database name."; default = "grafana"; type = types.str; }; user = mkOption { description = "Database user."; default = "root"; type = types.str; }; password = mkOption { description = "Database password."; default = ""; type = types.str; }; path = mkOption { description = "Database path."; default = "${cfg.dataDir}/data/grafana.db"; type = types.path; }; }; security = { adminUser = mkOption { description = "Default admin username."; default = "admin"; type = types.str; }; adminPassword = mkOption { description = "Default admin password."; default = "admin"; type = types.str; }; secretKey = mkOption { description = "Secret key used for signing."; default = "SW2YcwTIb9zpOOhoPsMm"; type = types.str; }; }; users = { allowSignUp = mkOption { description = "Disable user signup / registration"; default = false; type = types.bool; }; allowOrgCreate = mkOption { description = "Whether user is allowed to create organizations."; default = false; type = types.bool; }; autoAssignOrg = mkOption { description = "Whether to automatically assign new users to default org."; default = true; type = types.bool; }; autoAssignOrgRole = mkOption { description = "Default role new users will be auto assigned."; default = "Viewer"; type = types.enum ["Viewer" "Editor"]; }; }; auth.anonymous = { enable = mkOption { description = "Whether to allow anonymous access"; default = false; type = types.bool; }; }; extraOptions = mkOption { description = '' Extra configuration options passed as env variables as specified in documentation, but without GF_ prefix ''; default = {}; type = types.attrsOf types.str; }; }; config = mkIf cfg.enable { warnings = [ "Grafana passwords will be stored as plaintext in the Nix store!" ]; systemd.services.grafana = { description = "Grafana Service Daemon"; wantedBy = ["multi-user.target"]; after = ["networking.target"]; environment = mapAttrs' (n: v: nameValuePair "GF_${n}" (toString v)) envOptions; serviceConfig = { ExecStart = "${cfg.package}/bin/grafana -homepath ${cfg.dataDir}"; WorkingDirectory = cfg.dataDir; User = "grafana"; }; preStart = '' ln -fs ${cfg.package}/share/grafana/conf ${cfg.dataDir} ''; }; users.extraUsers.grafana = { uid = config.ids.uids.grafana; description = "Grafana user"; home = cfg.dataDir; createHome = true; }; }; }