Initial control tower impl

control-tower/.gitignore

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+node_modules
+.DS_Store
+npm-debug.log
+.eslintcache

control-tower/README.md

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+# command-tower

control-tower/bin/control-tower

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+#!/usr/bin/env node
+
+'use strict';
+
+const ControlTower = require('../');
+
+const tower = new ControlTower();
+tower.start((err) => {
+  if (err) {
+    console.error(err);
+    process.exit(1);
+  }
+
+  console.log('Control Tower Started');
+});

control-tower/lib/index.js

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+'use strict';
+
+const CMonClient = require('cmon-client');
+const PortalData = require('portal-data');
+const VAsync = require('vasync');
+
+
+const internals = {};
+
+
+module.exports = class {
+  constructor (options) {
+    options = options || {};
+    this._data = new PortalData(options.data);
+    this._cmon = new CMonClient(options.cmon);
+    this._deployments = {};
+  }
+
+  start (cb) {
+    this._data.connect((err) => {
+      if (err) {
+        return cb(err);
+      }
+
+      this._poll();
+
+      this._data.deploymentChanges((err, changes) => {
+        if (changes) {
+          this._refreshContainers(changes.id);
+        }
+      });
+    });
+  }
+
+  _refreshContainers (deploymentId) {
+    this._data.getServices(deploymentId).then((services) => {
+      this._deployments[deploymentId] = services.containers;
+    });
+  }
+
+  _listContainers () {
+    let containers = [];
+    const deploymentIds = Object.keys(this._deployments);
+
+    deploymentIds.forEach((deploymentId) => {
+      containers = containers.concat(this._deployments[deploymentId]);
+    });
+
+    return containers;
+  }
+
+  _poll () {
+    if (this._isPolling) {
+      return;
+    }
+
+    const finish = () => {
+      this._isPolling = false;
+      setTimeout(() => this._poll(), 1000);
+    };
+
+    this._isPolling = true;
+    VAsync.forEachParallel({
+      func: this._cmon.metrics,
+      inputs: this._listContainers()
+    }, (err, results) => {
+      if (err) {
+        console.error(err);
+        return finish();
+      }
+
+      this._saveMetrics(results, finish);
+    });
+  }
+
+  _saveMetrics (metrics, cb) {
+    cb();
+  }
+}

control-tower/package.json

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+{
+  "name": "control-tower",
+  "version": "0.0.0",
+  "description": "portal service metrics watcher",
+  "main": "lib",
+  "bin": {
+    "control-tower": "./bin/control-tower"
+  },
+  "scripts": {
+    "lint": "belly-button",
+    "rethinkdb-up": "docker run -d -p 8080:8080 -p 28015:28015 -p 29015:29015 --name rethinkdb rethinkdb",
+    "rethinkdb-down": "docker rm -f rethinkdb",
+    "test": "npm run lint && lab -t 40"
+  },
+  "keywords": [],
+  "author": "wyatt",
+  "license": "MPL-2.0",
+  "devDependencies": {
+    "belly-button": "^3.1.0",
+    "code": "^4.0.0",
+    "lab": "^13.0.4"
+  },
+  "dependencies": {
+    "cmon-client": "^1.1.0",
+    "portal-data": "^1.0.0",
+    "vasync": "^1.6.4"
+  }
+}

control-tower/test/index.js

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+'use strict';
+
+const Code = require('code');
+const Lab = require('lab');
+const ControlTower = require('../');
+
+
+// Test shortcuts
+
+const lab = exports.lab = Lab.script();
+const describe = lab.describe;
+const it = lab.it;
+const expect = Code.expect;
+
+
+const internals = {
+  options: { data: { test: true, name: 'test' } }
+};
+
+
+describe('start()', () => {
+  it.skip('starts to listen for service changes and monitors metrics', (done) => {
+    const controlTower = new ControlTower(internals.options);
+    done();
+  });
+});