Wednesday, January 7, 2015

Docker for Java Developers (Lab)

Docker for Java Developers (Lab) 

We have been working on a hands-on tutorial to help people ram up on Docker!

Containers are enabling developers to package their applications (and underlying dependencies) in new ways that are portable and work consistently everywhere? On your machine, in production, in your data center, and in the cloud. And Docker has become the de facto standard for those portable containers in the cloud, whether you’re working with Amazon Web Services, Google Cloud Platform, or Microsoft Azure. Docker is the developer-friendly Linux container technology that enables creation of your stack: OS, JVM, app server, app, and all your custom configuration. So with all it offers, how comfortable are you and your team taking Docker from development to production? Are you hearing developers say, “But it works on my machine!” when code breaks in production? And if you are, how many hours are then spent standing up an accurate test environment to research and fix the bug that caused the problem? This lab offers developers an intro-level, hands-on session with Docker, from installation (including boot2docker on Windows/Mac), to exploring Docker Hub, to crafting their own images, to adding Java apps and running custom containers. This is a BYOL (bring your own laptop) session, so bring your Windows, OSX, or Linux laptop and be ready to dig into a tool that promises to be at the forefront of our industry for some time to come.

The First Tutorial (planning on more in the series)
https://github.com/burrsutter/docker_tutorial

And recommended blogs by Arun Gupta for more concepts:




Monday, December 1, 2014

Hybrid Mobile - Apache Cordova Training Series with Eclipse via JBoss Developer Studio

We have been developing Eclipse tools for HTML5 Hybrid Mobile applications, leveraging Apache Cordova, jQuery and AngularJS/Ionic for a few years now.   This set of videos is primarily for "training purposes".  The ultimate goal is to get you started and making you productive with our mobile-focused Eclipse tools.

The series has been published to YouTube. JBoss Mobile (Cordova, jQuery, AngularJS, Ionic, Push) - YouTube

 1 - Installation: Walks through the installation of the Hybrid Mobile Tools into JBDS 8 - allowing you to create Apache Cordova based applications leveraging HTML5, jQuery Mobile or AngularJS+Ionic. In this video, you are introduce to CordovaSim and LiveReload features for interactively building your mobile UI. Integration with the iOS Simulator is also demonstrated (note: iOS Simulator requires Mac OSX)
2 - REST: Addition of a localhost EAP server, configuration to allow for remote connections (mobile clients are remote), deployment of a REST endpoint. Creation of a mobile application that interacts with the EAP hosted REST endpoint.
3 - Native API: Demonstrates how to use Apache Cordova Plug-ins to leverage native device functionality, in this case, access to the Contacts on the device itself. Also demonstrates deployment to a USB-connected Android phone.
4 - AngularJS + Ionic: Demonstrates how to start an AngularJS + Ionic project and import into JBDS. Use of the new Ionic Palette in JBDS.
5 - Push: Introduces how to configure Push Notifications - primarily focused on the EAP setup required to install our UnifiedPush Server to a localhost EAP. Includes the configuration of Android Google Cloud Messaging push notifications - demonstrated on actual Android device.
6 - More Native: Brings in some additional Apache Cordova Plug-ins to demonstrate use of the accelerometer and battery status APIs. CordovaSim providing interactive testing support, deployment to real Android device.
7 - iOS: Taking the same application created for Contacts and deploying it to an iPhone. Demonstrates the steps involved with using http://developer.apple.com, JBDS' Export Native Project and XCode with actual deployment to a local iPhone.

Friday, January 31, 2014

iOS APNS & Android GCM Push with Apache Cordova (Phonegap)

Here are my instructions for Hello World, a tutorial with Aerogear's Unified Push Server that allows you to send iOS and Android push notifications to Apache Cordova/Phonegap/HTML5 client applications. If you need help, the best place to hang out is on irc.freenode.net #aerogear channel

The instructions can be found in the readme.txt file and the sample code, while not necessary to follow the tutorial is also available at github https://github.com/burrsutter/hellopush The primary difference between the instructions in the readme.txt and the provided solution is that I added logic to address the OS configuration. If you are an Eclipse user, JBoss is adding a plugin for Phonegap/Apache Cordova project creation - here is a video to see it in action: https://vimeo.com/82204444
https://vimeo.com/81565404

My Aerogear Unified Push Server instance is running at OpenShift - sign-up is free and it only takes a few clicks to select the Aerogear Push 0.X quickstart and you are up and running.

Aerogear Cordova Push Plugin (HelloWorld)

0. getting the Cordova command line tool installed for Mac
sudo npm install -g cordova
cordova -version
3.3.1-0.1.2
http://cordova.apache.org/blog/releases/2013/07/23/cordova-3.html

Cordova Command Line Guide
http://cordova.apache.org/docs/en/3.0.0/guide_cli_index.md.html

npm itself comes from Node.js http://nodejs.org/
npm -version
1.3.25
node --version
v0.10.25
You will also need the Android SDK installed for your OS and in your PATH - commands like "android" and "adb devices" should execute
You will also need "curl", if you type in "curl" and hit return
curl: try 'curl --help' or 'curl --manual' for more information

1. Cordova create has the following sequence: "cordova create folderName bundleID appName"

cordova create hellopush com.burrsutter.hellopush "Hello Push"

2. edit hellopush (bring up your editor) if you open config.xml, you should see <name>Hello Push</name> <widget id="com.burrsutter.hellopush" the widget id becomes the bundle identifier, it must unique identify your iOS app, globally when you setup your iOS provisioning profile, you will need this unique bundle ID

3. cd hellopush

4. cordova platform add android

5. cordova plugin search push

6. cordova plugin add org.jboss.aerogear.cordova.push

7. There is a console.log in the default project as well as in the suggested example code, so make sure to also add the console plugin

cordova plugin add org.apache.cordova.console

and to know the mobile OS install the device plugin

cordova plugin add org.apache.cordova.device

8. index.html - insert the following below <div id="deviceready"> but inside <div class="app"> <font size="6"> <div id="notify">notifications </div> <div id="debug">debug </div> </font>

9. index.js

   successHandler: function (message) {
            var debug = document.getElementById("debug");
            console.log(message);
            debug.innerHTML = "success: " + message;
   },
   errorHandler: function (message) {
            var debug = document.getElementById("debug");
            console.log(message);
            debug.innerHTML = "error: " + message;
   },  
   onNotification: function (e) {
            // alert(e.alert);
            var notify = document.getElementById("notify");
            notify.innerHTML = e.alert;
   },  

    // deviceready Event Handler
    //
    // The scope of 'this' is the event. In order to call the 
    // 'receivedEvent' function, we must explicity call 
    // 'app.receivedEvent(...);'
    onDeviceReady: function() {
        var config = {
                senderID: "492580885002",
                pushServerURL: "https://aerogear-html5.rhcloud.com",
                variantID: "b3852e72-92e1-4b05-a4bd-b549438d4943",
                variantSecret: "13c9daca-457e-4837-bc26-769ba572a940"
        };
        push.register(
            app.successHandler,
            app.errorHandler,
            {
            	"badge": "true",
                "sound": "true",
                "alert": "true",
                ecb: "app.onNotification",
                pushConfig: config
            });
            
        app.receivedEvent('deviceready');
   },
Note: senderID, variantID and variantSecret were all setup in the Push Console at pushServerURL

http://aerogear.org/docs/guides/aerogear-push-android/google-setup/

http://aerogear.org/docs/guides/AdminConsoleGuide/

10. Run "adb devices" to see if an android device is plugged in correctly then cordova run android

this will install and launch the app on your plugged in, developer-ready Android phone/tablet

11. then send a message

curl -3 -u \
"f07c43a6-bb0a-4bb7-a1eb-a368db272212:e2cf19c3-6636-4712-bbe8-26b7c1ac9c09" \
   -v -H "Accept: application/json" -H "Content-type: application/json" \
   -X POST -d '{"message": {"alert":"Hello AeroGear", "badge":1}}' \
   https://aerogear-html5.rhcloud.com/rest/sender
NOTE: this is not wrapping correctly here in Blogger, here is the gist and I included a send.sh to make sending in numerous messages a little easier. Usage: ./send.sh "My Message" 3

where f07c43a6-bb0a-4bb7-a1eb-a368db272212
is your Application ID from the web console
where e2cf19c3-6636-4712-bbe8-26b7c1ac9c09
is the Master Secret also from the web console

Success, send a few more messages, changing the "Hello AeroGear Unified Push!"

Note: If you wish to deploy the app to another Android device, unplug the current one and plug in the new one - use "cordova run android" again and it will deploy to the new device - the app will still function and receive push notifications without being plugged in on USB.

12. Add iOS, if on Mac OS X, with XCode installed (via Mac AppStore is easiest) and you have previously paid your $99 and know how to get around at http://developer.apple.com

cordova platform add ios
13. Setup your provisioning profile:

http://aerogear.org/docs/guides/aerogear-push-ios/app-id-ssl-certificate-apns/ and

http://aerogear.org/docs/guides/aerogear-push-ios/provisioning-profiles/ and

http://aerogear.org/docs/guides/AdminConsoleGuide/

14. Add the variant for iOS via the Unified Push Server web console - uploading the .p12 file and its associated passphrase

15. look under platforms\ios and you should see a Hello Push.xcodeproj - double click on the .xcodeproj

If you see the General tab, double check the bundle identifier of com.burrsutter.hellopush or whatever you made yours

Modify the index.js (in XCode) for the proper variantID and variantSecret from the Unified Push Server console

16. Assuming you have previously registered your plugged in iOS device with the developer.apple.com portal, you can now hit the big arrow and target your device.

When the app installs it should prompt you to accept push notifications.

17. Look for a new installation/device token under your newly added iOS variant in the UPS web console. If you see no instance/device token then something failed.

18. Finally, send a message, it should hit all the android & iOS devices that you have deployed the app to.