├── config.example.json
├── lib
    ├── proxy.js
    ├── app.js
    └── dockerControl.js
├── README.md
├── .gitignore
├── package.json
├── LICENSE
├── server.js
└── public
    └── index.html


/config.example.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "dockerOptions": {
 3 |     "socketPath": "/var/run/docker.sock"
 4 |   },
 5 |   "hostName": "generalhenry.com",
 6 |   "dockerHost": "http://localhost:",
 7 |   "port": 80,
 8 |   "imagePrefix": "nodeschool/",
 9 |   "server": true
10 | }
11 | 


--------------------------------------------------------------------------------
/lib/proxy.js:
--------------------------------------------------------------------------------
 1 | var httpProxy = require('http-proxy');
 2 | 
 3 | var proxy = module.exports = httpProxy.createProxyServer({});
 4 | 
 5 | proxy.on('error', handleProxyError);
 6 | 
 7 | function handleProxyError(err) {
 8 |   console.log('proxy error');
 9 |   console.error(err);
10 | }


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | nodeschool-interactive
 2 | ======================
 3 | 
 4 | interactive nodeschool online
 5 | 
 6 | Powered by docker containers
 7 | 
 8 | Connected to the web with pty.js and term.js
 9 | 
10 | Docker files @ https://github.com/generalhenry/nodeschool-dockerfiles
11 | 
12 | Docker images @ https://hub.docker.com/u/nodeschool/
13 | 
14 | Docker garbage collection @ https://github.com/generalhenry/docker-gc
15 | 
16 | Connection to web @ https://github.com/generalhenry/expose-bash-over-websockets
17 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # Logs
 2 | logs
 3 | *.log
 4 | 
 5 | # Runtime data
 6 | pids
 7 | *.pid
 8 | *.seed
 9 | 
10 | # Directory for instrumented libs generated by jscoverage/JSCover
11 | lib-cov
12 | 
13 | # Coverage directory used by tools like istanbul
14 | coverage
15 | 
16 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
17 | .grunt
18 | 
19 | # Compiled binary addons (http://nodejs.org/api/addons.html)
20 | build/Release
21 | 
22 | # Dependency directory
23 | # Deployed apps should consider commenting this line out:
24 | # see https://npmjs.org/doc/faq.html#Should-I-check-my-node_modules-folder-into-git
25 | node_modules
26 | 
27 | config.json
28 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "route",
 3 |   "version": "0.0.0",
 4 |   "description": "",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1",
 8 |     "start": "node --harmony server.js",
 9 |     "postinstall": "[ ! -f config.json ] && cp config.example.json config.json"
10 |   },
11 |   "author": "",
12 |   "license": "ISC",
13 |   "dependencies": {
14 |     "co-request": "^0.2.0",
15 |     "dockerode": "^2.0.5",
16 |     "empty-port": "0.0.1",
17 |     "http-proxy": "^1.2.0",
18 |     "koa": "^0.9.0",
19 |     "koa-static": "^1.4.6",
20 |     "mkdirp": "^0.5.0",
21 |     "rimraf": "^2.2.8",
22 |     "thunkify": "^2.1.2"
23 |   }
24 | }
25 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | Copyright (c) 2014, Henry Allen-Tilford <htilford@gmail.com>
 2 | 
 3 | Permission to use, copy, modify, and/or distribute this software for any
 4 | purpose with or without fee is hereby granted, provided that the above
 5 | copyright notice and this permission notice appear in all copies.
 6 | 
 7 | THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 8 | WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 9 | MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
10 | ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
12 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
13 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
14 | 


--------------------------------------------------------------------------------
/server.js:
--------------------------------------------------------------------------------
 1 | var http = require('http');
 2 | var path = require('path');
 3 | var app = require('./lib/app');
 4 | var proxy = require('./lib/proxy');
 5 | 
 6 | var portList = [80, 2000, 3000, 4000, 5000, 8000, 8080, 12491, 12492];
 7 | 
 8 | portList.forEach(attachToPort);
 9 | 
10 | function attachToPort (port) {
11 |   var server = http.createServer(app.callback());
12 | 
13 |   server.listen(port); 
14 |   server.on('error', handleServerError);
15 |   server.on('upgrade', handleUpgrade);
16 | 
17 |   function handleServerError (err) {
18 |     console.log('server error', 'port:', port);
19 |     console.error(err);
20 |   }
21 | }
22 | 
23 | function handleUpgrade (req, socket, head) {
24 |   var host = req.headers.host;
25 |   // if subdomain
26 |   if (host.split('.').length > 2) {
27 |     var name = host.split('.').shift();
28 |     var socketPath = path.join(__dirname, '../binds', name, 'proxy');
29 | 
30 |     proxy.ws(req, socket, head, {
31 |       target: {
32 |         socketPath: socketPath     
33 |       }
34 |     }, handleRequestErrors);
35 |     req.on('error', handleRequestErrors);
36 | 
37 |     function handleRequestErrors (err) {
38 |       console.log('websocket request error', {
39 |         name: name,
40 |         socketPath: socketPath
41 |       });
42 |       console.error(err);
43 |     }
44 |   }
45 | }


--------------------------------------------------------------------------------
/lib/app.js:
--------------------------------------------------------------------------------
 1 | var path = require('path');
 2 | var koa = require('koa');
 3 | var serve = require('koa-static');
 4 | var config = require('../config');
 5 | var proxy = require('./proxy');
 6 | var dockerControl = require('./dockerControl');
 7 | 
 8 | var app = module.exports = koa();
 9 | 
10 | app.use(function *proxyWorkshopContainers(next) {
11 |   var host = this.request.headers.host;
12 |   // if subdomain
13 |   if (host.split('.').length > 2) {
14 |     var name = host.split('.').shift();
15 |     yield dockerControl.readyContainer(name);
16 |     var socketPath = path.join(__dirname, '../binds', name, 'proxy'); 
17 |     proxy.web(this.req, this.res, {
18 |       target: {
19 |         socketPath: socketPath
20 |       }
21 |     }, function (err) {
22 |       console.log('web proxy error');
23 |       console.error(err);
24 |     });
25 |     this.respond = false;
26 |   } else {
27 |     yield next;
28 |   }
29 | });
30 | 
31 | app.use(serve('public'));
32 | 
33 | app.use(function *createContainers(next) {
34 |   var image = path.basename(this.request.url);
35 |   try {
36 |     var name = yield dockerControl.createContainer(image);
37 |     return this.response.redirect('http://' + name + '.' + config.hostName);
38 |   } catch (err) {
39 |     console.log('container create error', 'image', image);
40 |     console.error(err);
41 |     return next;
42 |   }
43 | });
44 | 
45 | 
46 | 
47 | 
48 | 


--------------------------------------------------------------------------------
/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <meta charset="utf-8">
 3 | <title>Nodeschool interactive</title>
 4 | <link rel="stylesheet" href="//nodeschool.io/style.css">
 5 | <link rel="shortcut icon" href="//nodeschool.io/images/favicon.ico">
 6 | <link rel="icon" type="image/png" href="//nodeschool.io/images/nodeschool-icon.png">
 7 | <style>
 8 |   body {
 9 |     text-align: center;
10 |   }
11 |   a {
12 |     display: block;
13 |     font-size: 2em;
14 |   }
15 | </style>
16 | <header>
17 |   <div class="container">
18 |     <div class="full"
19 |       <a id="logo" href="/" title="Nodeschoolinteractive Home">
20 |         <img width="300" src="//nodeschool.io/images/schoolhouse.svg">
21 |       </a>
22 |     </div>
23 |   </div>
24 | </header>
25 | <a href='/browserify-adventure'>browserify-adventure</a>
26 | <a href='/learnyounode'>learnyounode</a>
27 | <a href='/levelmeup'>levelmeup</a>
28 | <a href='/stream-adventure'>stream-adventure</a>
29 | <a href='/bytewiser'>bytewiser</a>
30 | <a href='/functional-javascript-workshop'>functional-javascript-workshop</a>
31 | <a href='/git-it'>git-it</a><!-- trying to make it work -->
32 | <a href='/expressworks'>expressworks</a>
33 | <a href='/makemehapi'>makemehapi</a>
34 | <a href='/promise-it-wont-hurt'>promise-it-wont-hurt</a>
35 | <a href='/async-you'>async-you</a>
36 | <!--<a href='/nodebot-workshop'>nodebot-workshop</a> hardware . . .-->
37 | <a href='/goingnative'>goingnative</a>
38 | <a href='/shader-school'>shader-school</a><!-- kinda sorta working -->
39 | <a href='/bug-clinic'>bug-clinic</a>
40 | <!--<a href='/introtowebgl'>introtowebgl</a> install issues-->
41 | <a href='/count-to-6'>count-to-6</a>
42 | <a href='/npm-tutor'>npm-tutor</a>
43 | <a href='/data-plumber'>data-plumber</a>
44 | <a href='/lololodash'>lololodash</a>
45 | <a href='/planetproto'>planetproto</a>
46 | <a href='/kick-off-koa'>kick-off-koa</a>
47 | <a href='/sandbox'>sandbox</a>
48 | <a href='/repl'>repl</a>
49 | 


--------------------------------------------------------------------------------
/lib/dockerControl.js:
--------------------------------------------------------------------------------
 1 | var http = require('http');
 2 | var path = require('path');
 3 | var Dockerode = require('dockerode');
 4 | var emptyPort = require('empty-port');
 5 | var thunkify = require('thunkify');
 6 | var mkdirp = require('mkdirp');
 7 | var rimraf = require('rimraf');
 8 | var config = require('../config');
 9 | 
10 | module.exports = {
11 |   readyContainer: readyContainer,
12 |   createContainer: createContainer
13 | }
14 | 
15 | var docker = new Dockerode(config.dockerOptions);
16 | var emptyPort = thunkify(emptyPort);
17 | docker.createContainer = thunkify(docker.createContainer);
18 | mkdirp = thunkify(mkdirp);
19 | rimraf = thunkify(rimraf);
20 | 
21 | function *startContainer(container) {
22 |   var port = yield emptyPort({});
23 |   var folder = path.join(__dirname, '../binds', container.id);
24 |   yield mkdirp(folder);
25 |   yield rimraf(folder + '/*');
26 |   container.start = thunkify(container.start);
27 |   yield container.start({
28 |     Binds: [folder + ':/var/run']
29 |   });
30 |   yield waitForPort(folder);
31 |   return port;
32 | }
33 | 
34 | function *unpauseContainer(container) {
35 |   container.unpause = thunkify(container.unpause);
36 |   yield container.unpause();
37 |   yield waitForPort(path.join(__dirname, '../binds', container.id));
38 | }
39 | 
40 | function *waitForPort(folder) {
41 |   var count = 1000;
42 |   while (count-- > 0) {
43 |     try {
44 |       var result = yield get({ socketPath: path.join(folder, 'proxy') });
45 |       break;
46 |     } catch (error) {
47 |       ignore(error);
48 |     }
49 |   }
50 |   if (count < 1) {
51 |     throw new Error('Could not connect to container');
52 |   }
53 | }
54 | 
55 | function get(options) {
56 |   return function getThunk(cb) {
57 |     setTimeout(function getAttempt () {
58 |       var req = http.get(options);
59 |       req.on('error', cb);
60 |       req.on('response', function handleGetResponse(res) {
61 |         res.on('error', cb);
62 |         res.on('data', ignore);
63 |         res.on('end', cb);
64 |       });
65 |     }, 50);
66 |   };
67 | }
68 | 
69 | function *readyContainer(name) {
70 |   var container = docker.getContainer(name);
71 |   container.inspect = thunkify(container.inspect);
72 |   var info = yield container.inspect();
73 |   if (!info.State.Running) {
74 |     yield startContainer(container);
75 |   }
76 |   if (info.State.Paused) {
77 |     yield unpauseContainer(container);
78 |   }
79 | }
80 | 
81 | function *createContainer(image) {
82 |   var container = yield docker.createContainer({
83 |     Image: config.imagePrefix + image,
84 |     Hostname: image,
85 |     Tty: true,
86 |     Volumes: {
87 |       '/var/run': {}
88 |     }
89 |   });
90 |   container.inspect = thunkify(container.inspect);
91 |   var info = yield container.inspect();
92 |   return info.Name;
93 | }
94 | 
95 | function ignore() {}
96 | 


--------------------------------------------------------------------------------