Merging upstream version 1.11.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 303 insertions, 0 deletions

diff --git a/collectors/node.d.plugin/node.d.plugin.in b/collectors/node.d.plugin/node.d.plugin.in
new file mode 100755
index 000000000..05c126e90
--- /dev/null
+++ b/collectors/node.d.plugin/node.d.plugin.in
@@ -0,0 +1,303 @@
+#!/usr/bin/env bash
+':' //; exec "$(command -v nodejs || command -v node || echo "ERROR node 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.
+// 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) 2017 Costa Tsaousis <costa@tsaousis.gr>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// --------------------------------------------------------------------------------------------------------------------
+
+'use strict';
+
+// --------------------------------------------------------------------------------------------------------------------
+// get NETDATA environment variables
+
+var NETDATA_PLUGINS_DIR = process.env.NETDATA_PLUGINS_DIR || __dirname;
+var NETDATA_USER_CONFIG_DIR = process.env.NETDATA_USER_CONFIG_DIR || '@configdir_POST@';
+var NETDATA_STOCK_CONFIG_DIR = process.env.NETDATA_STOCK_CONFIG_DIR || '@libconfigdir_POST@';
+var NETDATA_UPDATE_EVERY = process.env.NETDATA_UPDATE_EVERY || 1;
+var NODE_D_DIR = NETDATA_PLUGINS_DIR + '/../node.d';
+
+// make sure the modules are found
+process.mainModule.paths.unshift(NODE_D_DIR + '/node_modules');
+process.mainModule.paths.unshift(NODE_D_DIR);
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// load required modules
+
+var fs = require('fs');
+var url = require('url');
+var util = require('util');
+var http = require('http');
+var path = require('path');
+var extend = require('extend');
+var netdata = require('netdata');
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// configuration
+
+function netdata_read_json_config_file(module_filename) {
+    var f = path.basename(module_filename);
+
+    var ufilename, sfilename;
+
+    var m = f.match('.plugin' + '$');
+    if(m !== null) {
+        ufilename = netdata.options.paths.config + '/' + f.substring(0, m.index) + '.conf';
+        sfilename = netdata.options.paths.stock_config + '/' + f.substring(0, m.index) + '.conf';
+    }
+
+    m = f.match('.node.js' + '$');
+    if(m !== null) {
+        ufilename = netdata.options.paths.config + '/node.d/' + f.substring(0, m.index) + '.conf';
+        sfilename = netdata.options.paths.stock_config + '/node.d/' + f.substring(0, m.index) + '.conf';
+    }
+
+    try {
+        netdata.debug('loading module\'s ' + module_filename + ' user-config ' + ufilename);
+        return JSON.parse(fs.readFileSync(ufilename, 'utf8'));
+    }
+    catch(e) {
+        netdata.error('Cannot read user-configuration file ' + ufilename + ': ' + e.message + '.');
+        dumpError(e);
+    }
+
+    try {
+        netdata.debug('loading module\'s ' + module_filename + ' stock-config ' + sfilename);
+        return JSON.parse(fs.readFileSync(sfilename, 'utf8'));
+    }
+    catch(e) {
+        netdata.error('Cannot read stock-configuration file ' + sfilename + ': ' + e.message + ', using internal defaults.');
+        dumpError(e);
+    }
+
+    return {};
+}
+
+// internal defaults
+extend(true, netdata.options, {
+    filename: path.basename(__filename),
+
+    update_every: NETDATA_UPDATE_EVERY,
+
+    paths: {
+        plugins: NETDATA_PLUGINS_DIR,
+        config: NETDATA_USER_CONFIG_DIR,
+        stock_config: NETDATA_STOCK_CONFIG_DIR,
+        modules: []
+    },
+
+    modules_enable_autodetect: true,
+    modules_enable_all: true,
+    modules: {}
+});
+
+// load configuration file
+netdata.options_loaded = netdata_read_json_config_file(__filename);
+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_USER_CONFIG_DIR;
+
+if(!netdata.options.paths.stock_config)
+    netdata.options.paths.stock_config = NETDATA_STOCK_CONFIG_DIR;
+
+// console.error('merged netdata object:');
+// console.error(util.inspect(netdata, {depth: 10}));
+
+
+// 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]);
+}
+applyModulePaths();
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// tracing
+
+function dumpError(err) {
+    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;
+            }
+        }
+    });
+}
+
+if(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;
+
+                // 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
+                };
+
+                var c2 = netdata_read_json_config_file(files[len]);
+                extend(true, c, c2);
+
+                // 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);
+}
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// 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();
+}
+start_when_configuring_ends();
+
+//netdata.debug('netdata object:')
+//netdata.debug(netdata);