diff options
Diffstat (limited to 'nixos/modules/services/monitoring/uptime.nix')
-rw-r--r-- | nixos/modules/services/monitoring/uptime.nix | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/nixos/modules/services/monitoring/uptime.nix b/nixos/modules/services/monitoring/uptime.nix new file mode 100644 index 00000000000..fa3de7d90bc --- /dev/null +++ b/nixos/modules/services/monitoring/uptime.nix @@ -0,0 +1,95 @@ +{ config, pkgs, ... }: +let + inherit (pkgs.lib) mkOption mkEnableOption mkIf mkMerge types optionalAttrs optional; + + cfg = config.services.uptime; + + configDir = pkgs.runCommand "config" {} (if cfg.configFile != null then '' + mkdir $out + ext=`echo ${cfg.configFile} | grep -o \\..*` + ln -sv ${cfg.configFile} $out/default$ext + ln -sv /var/lib/uptime/runtime.json $out/runtime.json + '' else '' + mkdir $out + cat ${pkgs.nodePackages.node-uptime}/lib/node_modules/node-uptime/config/default.yaml > $out/default.yaml + cat >> $out/default.yaml <<EOF + + autoStartMonitor: false + + mongodb: + connectionString: 'mongodb://localhost/uptime' + EOF + ln -sv /var/lib/uptime/runtime.json $out/runtime.json + ''); +in { + options.services.uptime = { + configFile = mkOption { + description = '' + The uptime configuration file + + If mongodb: server != localhost, please set usesRemoteMongo = true + + If you only want to run the monitor, please set enableWebService = false + and enableSeparateMonitoringService = true + + If autoStartMonitor: false (recommended) and you want to run both + services, please set enableSeparateMonitoringService = true + ''; + + type = types.nullOr types.path; + + default = null; + }; + + usesRemoteMongo = mkOption { + description = "Whether the configuration file specifies a remote mongo instance"; + + default = false; + + type = types.bool; + }; + + enableWebService = mkEnableOption "the uptime monitoring program web service"; + + enableSeparateMonitoringService = mkEnableOption "the uptime monitoring service (default: enableWebService == true)" // { default = cfg.enableWebService; }; + + nodeEnv = mkOption { + description = "The node environment to run in (development, production, etc.)"; + + type = types.string; + + default = "production"; + }; + }; + + config = mkMerge [ (mkIf cfg.enableWebService { + systemd.services.uptime = { + description = "uptime web service"; + wantedBy = [ "multi-user.target" ]; + environment = { + NODE_CONFIG_DIR = configDir; + NODE_ENV = cfg.nodeEnv; + NODE_PATH = "${pkgs.nodePackages.node-uptime}/lib/node_modules/node-uptime/node_modules"; + }; + preStart = "mkdir -p /var/lib/uptime"; + serviceConfig.ExecStart = "${pkgs.nodejs}/bin/node ${pkgs.nodePackages.node-uptime}/lib/node_modules/node-uptime/app.js"; + }; + + services.mongodb.enable = mkIf (!cfg.usesRemoteMongo) true; + }) (mkIf cfg.enableSeparateMonitoringService { + systemd.services.uptime-monitor = { + description = "uptime monitoring service"; + wantedBy = [ "multi-user.target" ]; + requires = optional cfg.enableWebService "uptime.service"; + after = optional cfg.enableWebService "uptime.service"; + environment = { + NODE_CONFIG_DIR = configDir; + NODE_ENV = cfg.nodeEnv; + NODE_PATH = "${pkgs.nodePackages.node-uptime}/lib/node_modules/node-uptime/node_modules"; + }; + # Ugh, need to wait for web service to be up + preStart = if cfg.enableWebService then "sleep 1s" else "mkdir -p /var/lib/uptime"; + serviceConfig.ExecStart = "${pkgs.nodejs}/bin/node ${pkgs.nodePackages.node-uptime}/lib/node_modules/node-uptime/monitor.js"; + }; + }) ]; +} |