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Getting Started with Mongo DB &

OpenShift

Steve Citron-PoustyDeveloper Evangelist, Red HatMarch 20, 2012

Aka Free Mongo applications for you!

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Agenda

• What is OpenShift?

• Getting Started

• Using Mongo with OpenShift

• Next Steps

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My Goal for today

Introduce you to OpenShift

Get you comfortable with using the tools.

I want you to be ready to start writing apps

A bit about me:

Long time Java, RDBMS, SpatialNew to: OpenShift and Mongo

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Assumptions

1) You might know some Mongo

2) You have a favorite programming language

3) You are comfortable with the command line (for now)

4) You might know GIT

5) You are unfamiliar with PaaS

PLEASE ASK QUESTIONS!!!!

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What is OpenShift?

Red Hat’s free platform as a service for applications in the cloud.

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Kind of like Amazon, right? Nope.

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What’s Infrastructure as a Service?

• Network, storage and compute offered as an on-demand service

• Basically, servers in the cloud

• You’re still on the hook to configure & manage the cloud & stack

• Example: Amazon EC2

“How do I use this?”

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What’s Platform as a Service?

• It’s an application platform

• Basically, an app run-time environment in the cloud

• PaaS configures & manages the cloud & stack for you

• Example: OpenShift

“The cloud is now useful!”

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What’s Software as a Service?

• It’s an on-demand application

• Nothing to install or configure

• Example: Salesforce, Gmail

“This is all my customers and users care about!”

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So, why should I use a PaaS?

• Realize the benefits of the cloud quickly

• Let the PaaS configure, manage & scale the stack

• Make deployments to the cloud easy

• Focus on your app & users, not the stack

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What’s supported?

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How does it work?

• Install the client tools

• Create a domain name

• Create an application

• Congrats! You are now in the cloud!

rhc-create-app –a my_app –t my_lang

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Looks great, but how much does it cost?

• OpenShift is free-as-in-beer

• Five 512 MB RAM / 1 GB Storage instances

• Need more resources, just ask!

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But, First….SSH

• To keep things secure we do most things over SSH

• You need to have your keys working properly

Git

• Is used to push changes to apps on OpenShift

• Is a distributed revision control and source code management system

Builds

• Java – we use Maven

• For others we just copy from the git repo over

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So, Let’s Get Started!

1. Sign up

2. Install the client tools

3. Create a domain name

4. Create an application

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DEMO – Finally!

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So here are the steps1) Create an account on openshift.com using the web console

2) Create a Domain using the command line

• Remember your domain has to be unique to the rhcloud.com namespace.

• It will be used in all your apps urls

3) Then go ahead and create an app

4) I am going to use eclipse to add other cartridges and edit the source code

• Make sure to store the usernames and passwords for the mongo and rockmongo

5) You can now modify the source and then commit and push to remote repository

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1. Sign Up!• openshift.com

• All it takes is an email address

• Promo Code: BAMUG

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Now to install the client tools

On the openshift site:

OpenShift > Community > Knowledge Base > Installing OpenShift Express client tools…

Basically

1. Install ruby and ruby gems

2. Gem install rhc

3. Make sure you have git and ssh

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On the different platforms

Easy Cheesy on Linux machines

Mac you need to install the full Xcode

Windows…well a bit more work

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Don’t have Cygwin installed?

Get it here: cygwin.com/install.html

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Hold up, what’s Cygwin?

A Linux-like environment for Windows making it possible

to port software running on Linux systems to Windows.

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2. Install the Client Tools on Windows

• What you are going to need: Cygwin

• Plus these cygwin components:

• openssh

• Ruby

• Git

• You will need all these for SSH and for advanced command line usage. Eclipse plugin does a lot

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2. Install the Client Tools on Windows

Next, download and extract rubygems from:

http://rubyforge.org/projects/rubygems

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2. Install the Client Tools on Windows

• In Cygwin run:

$ ruby <path_to_extracted_rubygems>/setup.rb install

Cygwin is unix so your path looks like c:/<path_to_extracted_rubygems>/setup.rb install

• Install the gem

$ gem install rhc

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Quick Tip: Client Tool Commands

rhc-* : prefix for all commands

rhc-create-domain : Create a namespace

rhc-create-app : Create an application

rhc-ctl-app : Control an app and embed components

rhc-snapshot : Backup and restore an application

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3. Create a Domain Name

$ rhc domain create –n <your domain> -l <your login>

Password:

• When creating apps the URLs will look like this:

http://<app name>-<your domain>.rhcloud.com

Example: http://javarules-jgsdomain.rhcloud.com

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Some tech to help with more learning for OpenShift1. Git – the source control and publishing system to

openshift. For SVN users:https://git.wiki.kernel.org/articles/g/i/t/GitSvnCrashCourse_512d.html

2. Eclipse tooling – use the latest Jboss Studio pluginhttp://www.jboss.org/tools/download/dev

3. -bliss

4. Our new shiny web consolehttps://openshift.redhat.com/app/console

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4. Create an Application

$ rhc app create –a <your app name> -t jbossas-7

Password:

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Mongo Specific awesomeness

RockMongo

MMS

Spatial is enabled

Sharding and replication are not running yet but they will be by time we leave Beta

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GitHub

• Full featured applications on GitHub

• www.github.com/gshipley

• BeerShift

• www.github.com/openshift

• A whole bunch

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One more demo

A little bit of spatial goodness

Mongo has built in 2D spatial indexing capabilities

You can build your own FourSquare or similar app.

Quick demo of loading some spatial data on an OpenShift Mongo Instance and then doing a query at the command line (or in RockMongo)

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Next Steps

• Forum: redhat.com/openshift/community

• Email: openshift@redhat.com

• IRC: #openshift on freenode