App v1 - memory storage

bulletin-board-app/Dockerfile

@@ -7,6 +7,4 @@ RUN npm install
 EXPOSE 8080
 CMD [ "npm", "start" ]
 
-COPY . .
-
-HEALTHCHECK CMD curl --fail http://localhost:8080 || exit 1  
+COPY . .

bulletin-board-app/backend/api.js

@@ -1,43 +1,9 @@
-var db = require('./db.js');
+var events = require('./events.js');
 
 exports.events = function (req, res) {
-  console.log('Loading DB events...');
-  db.Events
-    .findAll()
-    .then(events => {
-        console.log('Fetched events, count: ' + events.length);
-        res.json(events);
-    })
-    .catch(err => {
-        console.error('** Fetch failed: ', err);
-    });
+  res.json(events);
 };
 
 exports.event = function (req, res) {
-  console.log('Handling event call, method: ' + req.method + ', event ID: ' + req.params.eventId)
-  switch(req.method) {
-    case "DELETE":
-      db.Events
-      .destroy({
-        where: {
-          id: req.params.eventId
-        }
-      }).then(function() {
-        console.log('Deleted event with id: ' + req.params.eventId)
-        res.status(200).end();
-      });
-      break
-    case "POST":
-      db.Events
-        .create({
-          title: req.body.title,
-          detail: req.body.detail,
-          date: req.body.date
-        })
-        .then(function() {
-          res.send('{}');
-          res.status(201).end();
-        });
-      break
-  }
+  res.json(events[req.param.eventId]);
 };

bulletin-board-app/backend/db.js

@@ -1,34 +0,0 @@
-var Sequelize = require('sequelize');
-var username = 'sa';
-var password = 'DockerCon!!!';
-var host = 'bb-db';
-var dbName = 'BulletinBoard';
-
-var sequelize = new Sequelize(dbName, username, password, {
-    dialect: 'mssql',
-    host: host,
-    port: 1433,
-    dialectOptions: {
-        requestTimeout: 30000
-    }
-});
-
-sequelize
-    .authenticate()
-    .then(() => {
-        console.log('Successful connection to SQL Server.');
-    })
-    .catch(err => {
-        console.error('** SQL Server connection failed: ', err);
-        process.exit(1);
-    });
-
-var Event = sequelize.define('event', {
-    title: Sequelize.STRING,
-    detail: Sequelize.STRING,
-    date: Sequelize.DATE
-});
-
-Event.sync();
-
-exports.Events = Event;

bulletin-board-app/backend/events.js

@@ -0,0 +1,19 @@
+module.exports = [
+    {
+      id: 1,
+      title: 'Docker Workshop',
+      detail: 'Linuxing in Lonodon ',
+      date: '2017-11-21'
+    },
+    {
+      id: 2,
+      title: 'WinOps #17',
+      detail: 'WinOps London',
+      date: '2017-11-21'
+    },
+    {
+      id: 3,
+      title: 'Docker London',
+      date: '2017-11-13'
+    }
+  ];

bulletin-board-app/package.json

@@ -11,10 +11,7 @@
     "express": "^4.13.3",
     "morgan": "^1.6.1",
     "vue": "^1.0.10",
-    "vue-resource": "^0.1.17",
-    "tedious": "^2.0.1",
-    "sequelize": "^4.20.1",
-    "prom-client": "^10.2.2"
+    "vue-resource": "^0.1.17"
   },
   "devDependencies": {
     "body-parser": "^1.14.1",

bulletin-board-app/server.js

@@ -3,7 +3,6 @@ var express        = require('express'),
     methodOverride = require('method-override'),
     errorHandler   = require('errorhandler'),
     morgan         = require('morgan'),
-    prometheus     = require('prom-client'),
     routes         = require('./backend'),
     api            = require('./backend/api');
 
@@ -30,42 +29,10 @@ if ('production' == app.get('env')) {
   app.use(errorHandler());
 }
 
-// counter for Prometheus:
-const httpRequestDurationMicroseconds = new prometheus.Histogram({
-  name: 'http_request_duration_ms',
-  help: 'Duration of HTTP requests in ms',
-  labelNames: ['method', 'route', 'code'],
-  buckets: [0.10, 5, 15, 50, 100, 200, 300, 400, 500]  // buckets for response time from 0.1ms to 500ms
-})
-
-// record timestamp before request handler:
-app.use((req, res, next) => {
-  res.locals.startEpoch = Date.now()
-  next()
-})
-
 app.get('/', routes.index);
 app.get('/api/events', api.events);
 app.post('/api/events', api.event);
 app.delete('/api/events/:eventId', api.event);
 
-app.get('/metrics', (req, res) => {
-  res.set('Content-Type', prometheus.register.contentType)
-  res.end(prometheus.register.metrics())
-})
-
-// set response duration after handler:
-app.use((req, res, next) => {
-  const responseTimeInMs = Date.now() - res.locals.startEpoch
-
-  httpRequestDurationMicroseconds
-    .labels(req.method, req.path, res.statusCode)
-    .observe(responseTimeInMs)
-
-  next()
-})
-
-prometheus.collectDefaultMetrics();
-
 app.listen(8080);
 console.log('Magic happens on port 8080...');