-#!/usr/bin/env node
+#!/usr/bin/env bash
+':' //; exec "$(command -v nodejs || command -v node || command -v js || echo "ERROR node.js IS NOT AVAILABLE IN THIS SYSTEM")" "$0" "$@"
+
+// shebang hack from:
+// http://unix.stackexchange.com/questions/65235/universal-node-js-shebang
+
+// Initially this is run as a shell script (#!/bin/sh).
+// Then, the second line, finds nodejs or node or js in the system path
+// and executes it with the shell parameters.
+
+// netdata
+// real-time performance and health monitoring, done right!
+// (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
+// GPL v3+
+
+// --------------------------------------------------------------------------------------------------------------------
'use strict';
var fs = require('fs');
var url = require('url');
+var util = require('util');
var http = require('http');
var path = require('path');
var extend = require('extend');
// configuration
function pluginConfig(filename) {
- var f = path.basename(filename);
+ var f = path.basename(filename);
- var m = f.match('.plugin' + '$');
- if(m === null) m = f.match('.node.js' + '$');
- if(m !== null)
- return netdata.options.paths.config + '/' + f.substring(0, m.index) + '.conf';
+ // node.d.plugin configuration
+ var m = f.match('.plugin' + '$');
+ if(m !== null)
+ return netdata.options.paths.config + '/' + f.substring(0, m.index) + '.conf';
- return netdata.options.paths.config + '/' + f + '.conf';
+ // node.d modules configuration
+ m = f.match('.node.js' + '$');
+ if(m !== null)
+ return netdata.options.paths.config + '/node.d/' + f.substring(0, m.index) + '.conf';
+
+ return netdata.options.paths.config + '/node.d/' + f + '.conf';
}
// internal defaults
extend(true, netdata.options, {
- filename: path.basename(__filename),
-
- update_every: NETDATA_UPDATE_EVERY,
+ filename: path.basename(__filename),
- exit_after_ms: 3600 * 4 * 1000,
+ update_every: NETDATA_UPDATE_EVERY,
- paths: {
- plugins: NETDATA_PLUGINS_DIR,
- config: NETDATA_CONFIG_DIR,
- modules: [],
- },
+ paths: {
+ plugins: NETDATA_PLUGINS_DIR,
+ config: NETDATA_CONFIG_DIR,
+ modules: [],
+ },
- modules_enable_autodetect: true,
- modules_enable_all: true,
- modules: {},
+ modules_enable_autodetect: true,
+ modules_enable_all: true,
+ modules: {},
});
netdata.options.config_filename = pluginConfig(__filename);
// load configuration file
try {
- netdata.options_loaded = JSON.parse(fs.readFileSync(netdata.options.config_filename, 'utf8'));
- extend(true, netdata.options, netdata.options_loaded);
- console.error('merged netdata object:');
- console.error(netdata);
+ netdata.options_loaded = JSON.parse(fs.readFileSync(netdata.options.config_filename, 'utf8'));
+ extend(true, netdata.options, netdata.options_loaded);
+
+ if(!netdata.options.paths.plugins)
+ netdata.options.paths.plugins = NETDATA_PLUGINS_DIR;
+
+ if(!netdata.options.paths.config)
+ netdata.options.paths.config = NETDATA_CONFIG_DIR;
+
+ // console.error('merged netdata object:');
+ // console.error(util.inspect(netdata, {depth: 10}));
}
catch(e) {
- netdata.error('Cannot read configuration file ' + netdata.options.config_filename + ': ' + e.message + ', using internal defaults.');
- netdata.options_loaded = undefined;
- dumpError(e);
+ netdata.error('Cannot read configuration file ' + netdata.options.config_filename + ': ' + e.message + ', using internal defaults.');
+ netdata.options_loaded = undefined;
+ dumpError(e);
}
// apply module paths to node.js process
function applyModulePaths() {
- var len = netdata.options.paths.modules.length;
- while(len--)
- process.mainModule.paths.unshift(netdata.options.paths.modules[len]);
+ var len = netdata.options.paths.modules.length;
+ while(len--)
+ process.mainModule.paths.unshift(netdata.options.paths.modules[len]);
}
applyModulePaths();
// tracing
function dumpError(err) {
- if (typeof err === 'object') {
- if (err.stack) {
- netdata.debug(err.stack);
- }
- }
+ if (typeof err === 'object') {
+ if (err.stack) {
+ netdata.debug(err.stack);
+ }
+ }
}
// --------------------------------------------------------------------------------------------------------------------
// get command line arguments
{
- var found_myself = false;
- var found_number = false;
- var found_modules = false;
- process.argv.forEach(function (val, index, array) {
- netdata.debug('PARAM: ' + val);
-
- if(!found_myself) {
- if(val === __filename)
- found_myself = true;
- }
- else {
- switch(val) {
- case 'debug':
- netdata.options.DEBUG = true;
- netdata.debug('DEBUG enabled');
- break;
-
- default:
- if(found_number === true) {
- if(found_modules === false) {
- for(var i in netdata.options.modules)
- netdata.options.modules[i].enabled = false;
- }
-
- if(typeof netdata.options.modules[val] === 'undefined')
- netdata.options.modules[val] = {};
-
- netdata.options.modules[val].enabled = true;
- netdata.options.modules_enable_all = false;
- netdata.debug('enabled module ' + val);
- }
- else {
- try {
- var x = parseInt(val);
- if(x > 0) {
- netdata.options.update_every = x;
- if(netdata.options.update_every < NETDATA_UPDATE_EVERY) {
- netdata.options.update_every = NETDATA_UPDATE_EVERY;
- netdata.debug('Update frequency ' + x + 's is too low');
- }
-
- found_number = true;
- netdata.debug('Update frequency set to ' + netdata.options.update_every + ' seconds');
- }
- else netdata.error('Ignoring parameter: ' + val);
- }
- catch(e) {
- netdata.error('Cannot get value of parameter: ' + val);
- dumpError(e);
- }
- }
- break;
- }
- }
- });
+ var found_myself = false;
+ var found_number = false;
+ var found_modules = false;
+ process.argv.forEach(function (val, index, array) {
+ netdata.debug('PARAM: ' + val);
+
+ if(!found_myself) {
+ if(val === __filename)
+ found_myself = true;
+ }
+ else {
+ switch(val) {
+ case 'debug':
+ netdata.options.DEBUG = true;
+ netdata.debug('DEBUG enabled');
+ break;
+
+ default:
+ if(found_number === true) {
+ if(found_modules === false) {
+ for(var i in netdata.options.modules)
+ netdata.options.modules[i].enabled = false;
+ }
+
+ if(typeof netdata.options.modules[val] === 'undefined')
+ netdata.options.modules[val] = {};
+
+ netdata.options.modules[val].enabled = true;
+ netdata.options.modules_enable_all = false;
+ netdata.debug('enabled module ' + val);
+ }
+ else {
+ try {
+ var x = parseInt(val);
+ if(x > 0) {
+ netdata.options.update_every = x;
+ if(netdata.options.update_every < NETDATA_UPDATE_EVERY) {
+ netdata.options.update_every = NETDATA_UPDATE_EVERY;
+ netdata.debug('Update frequency ' + x + 's is too low');
+ }
+
+ found_number = true;
+ netdata.debug('Update frequency set to ' + netdata.options.update_every + ' seconds');
+ }
+ else netdata.error('Ignoring parameter: ' + val);
+ }
+ catch(e) {
+ netdata.error('Cannot get value of parameter: ' + val);
+ dumpError(e);
+ }
+ }
+ break;
+ }
+ }
+ });
}
if(netdata.options.update_every < 1) {
- netdata.debug('Adjusting update frequency to 1 second');
- netdata.options.update_every = 1;
+ netdata.debug('Adjusting update frequency to 1 second');
+ netdata.options.update_every = 1;
}
// --------------------------------------------------------------------------------------------------------------------
// find modules
function findModules() {
- var found = 0;
-
- var files = fs.readdirSync(NODE_D_DIR);
- var len = files.length;
- while(len--) {
- var m = files[len].match('.node.js' + '$');
- if(m !== null) {
- var n = files[len].substring(0, m.index);
-
- if(typeof(netdata.options.modules[n]) === 'undefined')
- netdata.options.modules[n] = { name: n, enabled: netdata.options.modules_enable_all };
-
- if(netdata.options.modules[n].enabled === true) {
- netdata.options.modules[n].name = n;
- netdata.options.modules[n].filename = NODE_D_DIR + '/' + files[len];
- netdata.options.modules[n].loaded = false;
-
- if(typeof(netdata.options.modules[n].config_filename) !== 'string')
- netdata.options.modules[n].config_filename = pluginConfig(files[len]);
-
- // load the module
- try {
- netdata.debug('loading module ' + netdata.options.modules[n].filename);
- netdata.options.modules[n].module = require(netdata.options.modules[n].filename);
- netdata.options.modules[n].module.name = n;
- netdata.debug('loaded module ' + netdata.options.modules[n].name + ' from ' + netdata.options.modules[n].filename);
- }
- catch(e) {
- netdata.options.modules[n].enabled = false;
- netdata.error('Cannot load module: ' + netdata.options.modules[n].filename + ' exception: ' + e);
- dumpError(e);
- continue;
- }
-
- // load its configuration
- var c = {
- enable_autodetect: netdata.options.modules_enable_autodetect,
- update_every: netdata.options.update_every
- };
- try {
- netdata.debug('loading module\'s ' + netdata.options.modules[n].name + ' config ' + netdata.options.modules[n].config_filename);
- var c2 = JSON.parse(fs.readFileSync(netdata.options.modules[n].config_filename, 'utf8'));
- extend(true, c, c2);
- netdata.debug('loaded module\'s ' + netdata.options.modules[n].name + ' config ' + netdata.options.modules[n].config_filename);
- }
- catch(e) {
- netdata.error('Cannot load module\'s ' + netdata.options.modules[n].name + ' config from ' + netdata.options.modules[n].config_filename + ' exception: ' + e + ', using internal defaults.');
- dumpError(e);
- }
-
- // call module auto-detection / configuration
- try {
- netdata.modules_configuring++;
- netdata.debug('Configuring module ' + netdata.options.modules[n].name);
- var serv = netdata.configure(netdata.options.modules[n].module, c, function() {
- netdata.debug('Configured module ' + netdata.options.modules[n].name);
- netdata.modules_configuring--;
- });
-
- netdata.debug('Configuring module ' + netdata.options.modules[n].name + ' reports ' + serv + ' eligible services.');
- }
- catch(e) {
- netdata.modules_configuring--;
- netdata.options.modules[n].enabled = false;
- netdata.error('Failed module auto-detection: ' + netdata.options.modules[n].name + ' exception: ' + e + ', disabling module.');
- dumpError(e);
- continue;
- }
-
- netdata.options.modules[n].loaded = true;
- found++;
- }
- }
- }
-
- // netdata.debug(netdata.options.modules);
- return found;
+ var found = 0;
+
+ var files = fs.readdirSync(NODE_D_DIR);
+ var len = files.length;
+ while(len--) {
+ var m = files[len].match('.node.js' + '$');
+ if(m !== null) {
+ var n = files[len].substring(0, m.index);
+
+ if(typeof(netdata.options.modules[n]) === 'undefined')
+ netdata.options.modules[n] = { name: n, enabled: netdata.options.modules_enable_all };
+
+ if(netdata.options.modules[n].enabled === true) {
+ netdata.options.modules[n].name = n;
+ netdata.options.modules[n].filename = NODE_D_DIR + '/' + files[len];
+ netdata.options.modules[n].loaded = false;
+
+ if(typeof(netdata.options.modules[n].config_filename) !== 'string')
+ netdata.options.modules[n].config_filename = pluginConfig(files[len]);
+
+ // load the module
+ try {
+ netdata.debug('loading module ' + netdata.options.modules[n].filename);
+ netdata.options.modules[n].module = require(netdata.options.modules[n].filename);
+ netdata.options.modules[n].module.name = n;
+ netdata.debug('loaded module ' + netdata.options.modules[n].name + ' from ' + netdata.options.modules[n].filename);
+ }
+ catch(e) {
+ netdata.options.modules[n].enabled = false;
+ netdata.error('Cannot load module: ' + netdata.options.modules[n].filename + ' exception: ' + e);
+ dumpError(e);
+ continue;
+ }
+
+ // load its configuration
+ var c = {
+ enable_autodetect: netdata.options.modules_enable_autodetect,
+ update_every: netdata.options.update_every
+ };
+ try {
+ netdata.debug('loading module\'s ' + netdata.options.modules[n].name + ' config ' + netdata.options.modules[n].config_filename);
+ var c2 = JSON.parse(fs.readFileSync(netdata.options.modules[n].config_filename, 'utf8'));
+ extend(true, c, c2);
+ netdata.debug('loaded module\'s ' + netdata.options.modules[n].name + ' config ' + netdata.options.modules[n].config_filename);
+ }
+ catch(e) {
+ netdata.error('Cannot load module\'s ' + netdata.options.modules[n].name + ' config from ' + netdata.options.modules[n].config_filename + ' exception: ' + e + ', using internal defaults.');
+ dumpError(e);
+ }
+
+ // call module auto-detection / configuration
+ try {
+ netdata.modules_configuring++;
+ netdata.debug('Configuring module ' + netdata.options.modules[n].name);
+ var serv = netdata.configure(netdata.options.modules[n].module, c, function() {
+ netdata.debug('Configured module ' + netdata.options.modules[n].name);
+ netdata.modules_configuring--;
+ });
+
+ netdata.debug('Configuring module ' + netdata.options.modules[n].name + ' reports ' + serv + ' eligible services.');
+ }
+ catch(e) {
+ netdata.modules_configuring--;
+ netdata.options.modules[n].enabled = false;
+ netdata.error('Failed module auto-detection: ' + netdata.options.modules[n].name + ' exception: ' + e + ', disabling module.');
+ dumpError(e);
+ continue;
+ }
+
+ netdata.options.modules[n].loaded = true;
+ found++;
+ }
+ }
+ }
+
+ // netdata.debug(netdata.options.modules);
+ return found;
}
if(findModules() === 0) {
- netdata.error('Cannot load any .node.js module from: ' + NODE_D_DIR);
- netdata.disableNodePlugin();
- process.exit(1);
+ netdata.error('Cannot load any .node.js module from: ' + NODE_D_DIR);
+ netdata.disableNodePlugin();
+ process.exit(1);
}
// start
function start_when_configuring_ends() {
- if(netdata.modules_configuring > 0) {
- netdata.debug('Waiting modules configuration, still running ' + netdata.modules_configuring);
- setTimeout(start_when_configuring_ends, 500);
- return;
- }
-
- netdata.modules_configuring = 0;
- netdata.start();
+ if(netdata.modules_configuring > 0) {
+ netdata.debug('Waiting modules configuration, still running ' + netdata.modules_configuring);
+ setTimeout(start_when_configuring_ends, 500);
+ return;
+ }
+
+ netdata.modules_configuring = 0;
+ netdata.start();
}
start_when_configuring_ends();
projects / netdata.git / blobdiff