feat: 초기 프로젝트 설정 및 룰.md 파일 추가

api.hyungi.net/node_modules/pm2/lib/God.js

@@ -0,0 +1,588 @@
+/**
+ * Copyright 2013-2022 the PM2 project authors. All rights reserved.
+ * Use of this source code is governed by a license that
+ * can be found in the LICENSE file.
+ */
+
+/******************************
+ *    ______ _______ ______
+ *   |   __ \   |   |__    |
+ *   |    __/       |    __|
+ *   |___|  |__|_|__|______|
+ *
+ *    Main Daemon side file
+ *
+ ******************************/
+
+var cluster       = require('cluster');
+var numCPUs       = require('os').cpus() ? require('os').cpus().length : 1;
+var path          = require('path');
+var EventEmitter2 = require('eventemitter2').EventEmitter2;
+var fs            = require('fs');
+var vizion        = require('vizion');
+var debug         = require('debug')('pm2:god');
+var Utility       = require('./Utility');
+var cst           = require('../constants.js');
+var timesLimit    = require('async/timesLimit');
+var Configuration = require('./Configuration.js');
+
+/**
+ * Override cluster module configuration
+ */
+cluster.setupMaster({
+  windowsHide: true,
+  exec : path.resolve(path.dirname(module.filename), 'ProcessContainer.js')
+});
+
+/**
+ * Expose God
+ */
+var God = module.exports = {
+  next_id : 0,
+  clusters_db : {},
+  configuration: {},
+  started_at : Date.now(),
+  system_infos_proc: null,
+  system_infos: null,
+  bus : new EventEmitter2({
+    wildcard: true,
+    delimiter: ':',
+    maxListeners: 1000
+  })
+};
+
+Utility.overrideConsole(God.bus);
+
+/**
+ * Populate God namespace
+ */
+require('./Event.js')(God);
+require('./God/Methods.js')(God);
+require('./God/ForkMode.js')(God);
+require('./God/ClusterMode.js')(God);
+require('./God/Reload')(God);
+require('./God/ActionMethods')(God);
+require('./Watcher')(God);
+
+God.init = function() {
+  require('./Worker.js')(this)
+  God.system_infos_proc = null
+
+  this.configuration = Configuration.getSync('pm2')
+
+  setTimeout(function() {
+    God.Worker.start()
+  }, 500)
+}
+
+God.writeExitSeparator = function(pm2_env, code, signal) {
+  try {
+    var exit_sep = `[PM2][${new Date().toISOString()}] app exited`
+    if (code)
+      exit_sep += `itself with exit code: ${code}`
+    if (signal)
+      exit_sep += `by an external signal: ${signal}`
+    exit_sep += '\n'
+
+    if (pm2_env.pm_out_log_path)
+      fs.writeFileSync(pm2_env.pm_out_log_path, exit_sep)
+    if (pm2_env.pm_err_log_path)
+      fs.writeFileSync(pm2_env.pm_err_log_path, exit_sep)
+    if (pm2_env.pm_log_path)
+      fs.writeFileSync(pm2_env.pm_log_path, exit_sep)
+  } catch(e) {
+  }
+}
+
+/**
+ * Init new process
+ */
+God.prepare = function prepare (env, cb) {
+  // generate a new unique id for each processes
+  env.env.unique_id = Utility.generateUUID()
+
+  // if the app is standalone, no multiple instance
+  if (typeof env.instances === 'undefined') {
+    env.vizion_running = false;
+    if (env.env && env.env.vizion_running) env.env.vizion_running = false;
+
+    if (env.status == cst.STOPPED_STATUS) {
+      env.pm_id = God.getNewId()
+      var clu = {
+        pm2_env : env,
+        process: {
+        }
+      }
+      God.clusters_db[env.pm_id] = clu
+      God.registerCron(env)
+      return cb(null, [ God.clusters_db[env.pm_id] ])
+    }
+
+    return God.executeApp(env, function (err, clu) {
+      if (err) return cb(err);
+      God.notify('start', clu, true);
+      return cb(null, [ Utility.clone(clu) ]);
+    });
+  }
+
+  // find how many replicate the user want
+  env.instances = parseInt(env.instances);
+  if (env.instances === 0) {
+    env.instances = numCPUs;
+  } else if (env.instances < 0) {
+    env.instances += numCPUs;
+  }
+  if (env.instances <= 0) {
+    env.instances = 1;
+  }
+
+  timesLimit(env.instances, 1, function (n, next) {
+    env.vizion_running = false;
+    if (env.env && env.env.vizion_running) {
+      env.env.vizion_running = false;
+    }
+
+    God.injectVariables(env, function inject (err, _env) {
+      if (err) return next(err);
+      return God.executeApp(Utility.clone(_env), function (err, clu) {
+        if (err) return next(err);
+        God.notify('start', clu, true);
+        // here call next wihtout an array because
+        // async.times aggregate the result into an array
+        return next(null, Utility.clone(clu));
+      });
+    });
+  }, cb);
+};
+
+/**
+ * Launch the specified script (present in env)
+ * @api private
+ * @method executeApp
+ * @param {Mixed} env
+ * @param {Function} cb
+ * @return Literal
+ */
+God.executeApp = function executeApp(env, cb) {
+  var env_copy = Utility.clone(env);
+
+  Utility.extend(env_copy, env_copy.env);
+
+  env_copy['status']         = env.autostart ? cst.LAUNCHING_STATUS : cst.STOPPED_STATUS;
+  env_copy['pm_uptime']      = Date.now();
+  env_copy['axm_actions']    = [];
+  env_copy['axm_monitor']    = {};
+  env_copy['axm_options']    = {};
+  env_copy['axm_dynamic']    = {};
+  env_copy['vizion_running'] =
+    env_copy['vizion_running'] !== undefined ? env_copy['vizion_running'] : false;
+
+  if (!env_copy.created_at)
+    env_copy['created_at'] = Date.now();
+
+  /**
+   * Enter here when it's the first time that the process is created
+   * 1 - Assign a new id
+   * 2 - Reset restart time and unstable_restarts
+   * 3 - Assign a log file name depending on the id
+   * 4 - If watch option is set, look for changes
+   */
+  if (env_copy['pm_id'] === undefined) {
+    env_copy['pm_id']             = God.getNewId();
+    env_copy['restart_time']      = 0;
+    env_copy['unstable_restarts'] = 0;
+
+    // add -pm_id to pid file
+    env_copy.pm_pid_path = env_copy.pm_pid_path.replace(/-[0-9]+\.pid$|\.pid$/g, '-' + env_copy['pm_id'] + '.pid');
+
+    // If merge option, dont separate the logs
+    if (!env_copy['merge_logs']) {
+      ['', '_out', '_err'].forEach(function(k){
+        var key = 'pm' + k + '_log_path';
+        env_copy[key] && (env_copy[key] = env_copy[key].replace(/-[0-9]+\.log$|\.log$/g, '-' + env_copy['pm_id'] + '.log'));
+      });
+    }
+
+    // Initiate watch file
+    if (env_copy['watch']) {
+      God.watch.enable(env_copy);
+    }
+  }
+
+  God.registerCron(env_copy)
+
+  if (env_copy['autostart'] === false) {
+    var clu = {pm2_env: env_copy, process: {pid: 0}};
+    God.clusters_db[env_copy.pm_id] = clu;
+    return cb(null, clu);
+  }
+
+  /** Callback when application is launched */
+  var readyCb = function ready(proc) {
+    // If vizion enabled run versioning retrieval system
+    if (proc.pm2_env.vizion !== false && proc.pm2_env.vizion !== "false")
+      God.finalizeProcedure(proc);
+    else
+      God.notify('online', proc);
+
+    if (proc.pm2_env.status !== cst.ERRORED_STATUS)
+      proc.pm2_env.status = cst.ONLINE_STATUS
+
+    console.log(`App [${proc.pm2_env.name}:${proc.pm2_env.pm_id}] online`);
+    if (cb) cb(null, proc);
+  }
+
+  if (env_copy.exec_mode === 'cluster_mode') {
+    /**
+     * Cluster mode logic (for NodeJS apps)
+     */
+    God.nodeApp(env_copy, function nodeApp(err, clu) {
+      if (cb && err) return cb(err);
+      if (err) return false;
+
+      var old_env = God.clusters_db[clu.pm2_env.pm_id];
+
+      if (old_env) {
+        old_env = null;
+        God.clusters_db[clu.pm2_env.pm_id] = null;
+      }
+
+      God.clusters_db[clu.pm2_env.pm_id] = clu;
+
+      clu.once('error', function(err) {
+        console.error(err.stack || err);
+        try {
+          clu.destroy && clu.destroy();
+        }
+        catch (e) {
+          console.error(e.stack || e);
+          God.handleExit(clu, cst.ERROR_EXIT);
+        }
+      });
+
+      clu.once('disconnect', function() {
+        console.log('App name:%s id:%s disconnected', clu.pm2_env.name, clu.pm2_env.pm_id);
+      });
+
+      clu.once('exit', function cluExit(code, signal) {
+        //God.writeExitSeparator(clu.pm2_env, code, signal)
+        God.handleExit(clu, code || 0, signal || 'SIGINT');
+      });
+
+      return clu.once('online', function () {
+        if (!clu.pm2_env.wait_ready)
+          return readyCb(clu);
+
+        // Timeout if the ready message has not been sent before listen_timeout
+        var ready_timeout = setTimeout(function() {
+          God.bus.removeListener('process:msg', listener)
+          return readyCb(clu)
+        }, clu.pm2_env.listen_timeout || cst.GRACEFUL_LISTEN_TIMEOUT);
+
+        var listener = function (packet) {
+          if (packet.raw === 'ready' &&
+              packet.process.name === clu.pm2_env.name &&
+              packet.process.pm_id === clu.pm2_env.pm_id) {
+            clearTimeout(ready_timeout);
+            God.bus.removeListener('process:msg', listener)
+            return readyCb(clu)
+          }
+        }
+
+        God.bus.on('process:msg', listener);
+      });
+    });
+  }
+  else {
+    /**
+     * Fork mode logic
+     */
+    God.forkMode(env_copy, function forkMode(err, clu) {
+      if (cb && err) return cb(err);
+      if (err) return false;
+
+      var old_env = God.clusters_db[clu.pm2_env.pm_id];
+      if (old_env) old_env = null;
+
+      God.clusters_db[env_copy.pm_id] = clu;
+
+      clu.once('error', function cluError(err) {
+        console.error(err.stack || err);
+        try {
+          clu.kill && clu.kill();
+        }
+        catch (e) {
+          console.error(e.stack || e);
+          God.handleExit(clu, cst.ERROR_EXIT);
+        }
+      });
+
+      clu.once('exit', function cluClose(code, signal) {
+        //God.writeExitSeparator(clu.pm2_env, code, signal)
+
+        if (clu.connected === true)
+          clu.disconnect && clu.disconnect();
+        clu._reloadLogs = null;
+        return God.handleExit(clu, code || 0, signal);
+      });
+
+      if (!clu.pm2_env.wait_ready)
+        return readyCb(clu);
+
+      // Timeout if the ready message has not been sent before listen_timeout
+      var ready_timeout = setTimeout(function() {
+        God.bus.removeListener('process:msg', listener)
+        return readyCb(clu)
+      }, clu.pm2_env.listen_timeout || cst.GRACEFUL_LISTEN_TIMEOUT);
+
+      var listener = function (packet) {
+        if (packet.raw === 'ready' &&
+            packet.process.name === clu.pm2_env.name &&
+            packet.process.pm_id === clu.pm2_env.pm_id) {
+          clearTimeout(ready_timeout);
+          God.bus.removeListener('process:msg', listener)
+          return readyCb(clu)
+        }
+      }
+      God.bus.on('process:msg', listener);
+    });
+  }
+  return false;
+};
+
+/**
+ * Handle logic when a process exit (Node or Fork)
+ * @method handleExit
+ * @param {} clu
+ * @param {} exit_code
+ * @return
+ */
+God.handleExit = function handleExit(clu, exit_code, kill_signal) {
+  console.log(`App [${clu.pm2_env.name}:${clu.pm2_env.pm_id}] exited with code [${exit_code}] via signal [${kill_signal || 'SIGINT'}]`)
+
+  var proc = this.clusters_db[clu.pm2_env.pm_id];
+
+  if (!proc) {
+    console.error('Process undefined ? with process id ', clu.pm2_env.pm_id);
+    return false;
+  }
+
+  var stopExitCodes = proc.pm2_env.stop_exit_codes !== undefined && proc.pm2_env.stop_exit_codes !== null ? proc.pm2_env.stop_exit_codes : [];
+  if (!Array.isArray(stopExitCodes)) {
+    stopExitCodes = [stopExitCodes];
+  }
+
+  var stopping = (proc.pm2_env.status == cst.STOPPING_STATUS
+                  || proc.pm2_env.status == cst.STOPPED_STATUS
+                  || proc.pm2_env.status == cst.ERRORED_STATUS)
+      || (proc.pm2_env.autorestart === false || proc.pm2_env.autorestart === "false")
+      || (stopExitCodes.map((strOrNum) => typeof strOrNum === 'string' ? parseInt(strOrNum, 10) : strOrNum)
+      .includes(exit_code));
+
+  var overlimit   = false;
+
+  if (stopping) proc.process.pid = 0;
+
+  // Reset probes and actions
+  if (proc.pm2_env.axm_actions) proc.pm2_env.axm_actions = [];
+  if (proc.pm2_env.axm_monitor) proc.pm2_env.axm_monitor = {};
+
+  if (proc.pm2_env.status != cst.ERRORED_STATUS &&
+      proc.pm2_env.status != cst.STOPPING_STATUS)
+    proc.pm2_env.status = cst.STOPPED_STATUS;
+
+  if (proc.pm2_env.pm_id.toString().indexOf('_old_') !== 0) {
+    try {
+      fs.unlinkSync(proc.pm2_env.pm_pid_path);
+    } catch (e) {
+      debug('Error when unlinking pid file', e);
+    }
+  }
+
+  /**
+   * Avoid infinite reloop if an error is present
+   */
+  // If the process has been created less than 15seconds ago
+
+  // And if the process has an uptime less than a second
+  var min_uptime = typeof(proc.pm2_env.min_uptime) !== 'undefined' ? proc.pm2_env.min_uptime : 1000;
+  var max_restarts = typeof(proc.pm2_env.max_restarts) !== 'undefined' ? proc.pm2_env.max_restarts : 16;
+
+  if ((Date.now() - proc.pm2_env.created_at) < (min_uptime * max_restarts)) {
+    if ((Date.now() - proc.pm2_env.pm_uptime) < min_uptime) {
+      // Increment unstable restart
+      proc.pm2_env.unstable_restarts += 1;
+    }
+  }
+
+
+  if (proc.pm2_env.unstable_restarts >= max_restarts) {
+    // Too many unstable restart in less than 15 seconds
+    // Set the process as 'ERRORED'
+    // And stop restarting it
+    proc.pm2_env.status = cst.ERRORED_STATUS;
+    proc.process.pid = 0;
+
+    console.log('Script %s had too many unstable restarts (%d). Stopped. %j',
+      proc.pm2_env.pm_exec_path,
+      proc.pm2_env.unstable_restarts,
+      proc.pm2_env.status);
+
+    God.notify('restart overlimit', proc);
+
+    proc.pm2_env.unstable_restarts = 0;
+    proc.pm2_env.created_at = null;
+    overlimit = true;
+  }
+
+  if (typeof(exit_code) !== 'undefined') proc.pm2_env.exit_code = exit_code;
+
+  God.notify('exit', proc);
+
+  if (God.pm2_being_killed) {
+    //console.log('[HandleExit] PM2 is being killed, stopping restart procedure...');
+    return false;
+  }
+
+  var restart_delay = 0;
+
+  if (proc.pm2_env.restart_delay !== undefined &&
+      !isNaN(parseInt(proc.pm2_env.restart_delay))) {
+    proc.pm2_env.status = cst.WAITING_RESTART;
+    restart_delay = parseInt(proc.pm2_env.restart_delay);
+  }
+
+  if (proc.pm2_env.exp_backoff_restart_delay !== undefined &&
+      !isNaN(parseInt(proc.pm2_env.exp_backoff_restart_delay))) {
+    proc.pm2_env.status = cst.WAITING_RESTART;
+    if (!proc.pm2_env.prev_restart_delay) {
+      proc.pm2_env.prev_restart_delay = proc.pm2_env.exp_backoff_restart_delay
+      restart_delay = proc.pm2_env.exp_backoff_restart_delay
+    }
+    else {
+      proc.pm2_env.prev_restart_delay = Math.floor(Math.min(15000, proc.pm2_env.prev_restart_delay * 1.5))
+      restart_delay = proc.pm2_env.prev_restart_delay
+    }
+    console.log(`App [${clu.pm2_env.name}:${clu.pm2_env.pm_id}] will restart in ${restart_delay}ms`)
+  }
+
+  if (!stopping && !overlimit) {
+    //make this property unenumerable
+    Object.defineProperty(proc.pm2_env, 'restart_task', {configurable: true, writable: true});
+    proc.pm2_env.restart_task = setTimeout(function() {
+      proc.pm2_env.restart_time += 1;
+      God.executeApp(proc.pm2_env);
+    }, restart_delay);
+  }
+
+  return false;
+};
+
+/**
+ * @method finalizeProcedure
+ * @param proc {Object}
+ * @return
+ */
+God.finalizeProcedure = function finalizeProcedure(proc) {
+  var last_path    = '';
+  var current_path = proc.pm2_env.cwd || path.dirname(proc.pm2_env.pm_exec_path);
+  var proc_id      = proc.pm2_env.pm_id;
+
+  proc.pm2_env.version = Utility.findPackageVersion(proc.pm2_env.pm_exec_path || proc.pm2_env.cwd);
+
+  if (proc.pm2_env.vizion_running === true) {
+    debug('Vizion is already running for proc id: %d, skipping this round', proc_id);
+    return God.notify('online', proc);
+  }
+  proc.pm2_env.vizion_running = true;
+
+  vizion.analyze({folder : current_path}, function recur_path(err, meta){
+    var proc = God.clusters_db[proc_id];
+
+    if (err)
+      debug(err.stack || err);
+
+    if (!proc ||
+        !proc.pm2_env ||
+        proc.pm2_env.status == cst.STOPPED_STATUS ||
+        proc.pm2_env.status == cst.STOPPING_STATUS ||
+        proc.pm2_env.status == cst.ERRORED_STATUS) {
+      return console.error('Cancelling versioning data parsing');
+    }
+
+    proc.pm2_env.vizion_running = false;
+
+    if (!err) {
+      proc.pm2_env.versioning = meta;
+      proc.pm2_env.versioning.repo_path = current_path;
+      God.notify('online', proc);
+    }
+    else if (err && current_path === last_path) {
+      proc.pm2_env.versioning = null;
+      God.notify('online', proc);
+    }
+    else {
+      last_path = current_path;
+      current_path = path.dirname(current_path);
+      proc.pm2_env.vizion_running = true;
+      vizion.analyze({folder : current_path}, recur_path);
+    }
+    return false;
+  });
+};
+
+/**
+ * Inject variables into processes
+ * @param {Object} env environnement to be passed to the process
+ * @param {Function} cb invoked with <err, env>
+ */
+God.injectVariables = function injectVariables (env, cb) {
+  // allow to override the key of NODE_APP_INSTANCE if wanted
+  var instanceKey = process.env.PM2_PROCESS_INSTANCE_VAR || env.instance_var;
+
+  // we need to find the last NODE_APP_INSTANCE used
+  var instances = Object.keys(God.clusters_db)
+    .map(function (procId) {
+      return God.clusters_db[procId];
+    }).filter(function (proc) {
+      return proc.pm2_env.name === env.name &&
+        typeof proc.pm2_env[instanceKey] !== 'undefined';
+    }).map(function (proc) {
+      return proc.pm2_env[instanceKey];
+    }).sort(function (a, b) {
+      return b - a;
+    });
+  // default to last one + 1
+  var instanceNumber = typeof instances[0] === 'undefined' ? 0 : instances[0] + 1;
+  // but try to find a one available
+  for (var i = 0; i < instances.length; i++) {
+    if (instances.indexOf(i) === -1) {
+      instanceNumber = i;
+      break;
+    }
+  }
+  env[instanceKey] = instanceNumber;
+
+  // if using increment_var, we need to increment it
+  if (env.increment_var) {
+    var lastIncrement = Object.keys(God.clusters_db)
+      .map(function (procId) {
+        return God.clusters_db[procId];
+      }).filter(function (proc) {
+        return proc.pm2_env.name === env.name &&
+          typeof proc.pm2_env[env.increment_var] !== 'undefined';
+      }).map(function (proc) {
+        return Number(proc.pm2_env[env.increment_var]);
+      }).sort(function (a, b) {
+        return b - a;
+      })[0];
+    // inject a incremental variable
+    var defaut = Number(env.env[env.increment_var]) || 0;
+    env[env.increment_var] = typeof lastIncrement === 'undefined' ? defaut : lastIncrement + 1;
+    env.env[env.increment_var] = env[env.increment_var];
+  }
+
+  return cb(null, env);
+};
+
+God.init()