Add tripwire module for restarting process if memory limit exeeds

.gitignore

@@ -18,3 +18,4 @@ cache
 
 config/_bse.json
 config/_config.json
+config/_tripwire.json

bin/index.js

@@ -1,8 +1,11 @@
 var fs = require('fs'),
+    path = require('path'),
     inherit = require('inherit'),
-    SnapshotMaster = require('../lib/master/index'),
+    fsExtra = require('fs-extra'),
     bseAdmin = require('bse-admin'),
+    Tripwire = require('memory-tripwire'),
     logger = require('bem-site-logger').createLogger(module),
+    SnapshotMaster = require('../lib/master/index'),
 
     DataBuilder = inherit(SnapshotMaster, {
 
@@ -35,15 +38,16 @@ var fs = require('fs'),
                 .then(function () { this['setIdle'](); }, this)
                 .fail(function () { this['setIdle'](); }, this);
         }
-    });
+    }),
+    tripWireConfig = fsExtra.readJSONFileSync('./config/_tripwire.json'),
+    appConfig = fsExtra.readJSONFileSync('./config/_config.json'),
+    tripwire = new Tripwire(tripWireConfig),
+    builder = new DataBuilder(appConfig);
 
-fs.readFile('./config/_config.json', { encoding: 'utf-8' }, function (error, config) {
-    if (error) {
-        logger.error('Can\'t read configuration file for snapshot-master tool');
-        throw error;
-    }
-    var builder = new DataBuilder(JSON.parse(config));
-    builder.loadConfig(function () {
-        builder.start();
-    });
+tripwire.start();
+tripwire.on('bomb', function () {
+    logger.warn('||| ---  MEMORY LIMIT EXCEED. PROCESS WILL BE RESTARTED --- ||| ');
+});
+builder.loadConfig(function () {
+    builder.start();
 });

config/tripwire.json

@@ -0,0 +1,8 @@
+{
+  "warning": "900mb",
+  "critical": "1000mb",
+  "interval": "1s",
+  "cycle": 3,
+  "exitTime": "5s",
+  "disconnectTime": "3s"
+}

package.json

@@ -25,6 +25,7 @@
     "fstream": "^1.0.x",
     "inherit": "^2.2.x",
     "lodash": "^3.1.x",
+    "memory-tripwire": "^1.0.0",
     "moment": "^2.9.0",
     "tar": "^2.0.x",
     "trtd": "^0.0.x",
@@ -42,9 +43,10 @@
     "jscs": "^1.11.x"
   },
   "scripts": {
-    "_app_config": "cp config/config.json config/_config.json",
-    "_bse_config": "cp config/bse.json config/_bse.json",
-    "config": "npm run  _app_config && npm run _bse_config",
+    "_app_config": "cp -i config/config.json config/_config.json",
+    "_bse_config": "cp -i config/bse.json config/_bse.json",
+    "_tripwire_config": "cp -i config/tripwire.json config/_tripwire.json",
+    "config": "npm run  _app_config && npm run _bse_config && npm run _tripwire_config",
     "mocha": "NODE_ENV=testing node_modules/.bin/mocha",
     "istanbul": "istanbul cover ./node_modules/mocha/bin/_mocha",
     "codestyle": "node_modules/.bin/jshint . && node_modules/.bin/jscs -c .jscs.js .",