OpenShift and next generation application development

1. 1 by
Syed M Shaaf
Solution Architect
Red Hat
sshaaf@redhat.com

2. 2 by
Cloud Service Models
STORAGE
(RHS)
HARDWARE
(x86, Power, S/390)
VIRTUALIZATION
(RHEV)
OPERATING SYSTEM
(RHEL)
APPLICATION PLATFORM
(JBOSS, PHP, RUBY, ETC)
APPLICATION
Automated and Managed
by the Public or Private
Cloud Offering
Managed and Controlled
by Customer (IT, Dev, or
User)
IaaS PaaS SaaS
Increased Control
Increased Automation

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PaaS = Platform as a Service
A Cloud Application Platform
Code Deploy Enjoy
Save Time and Money
Code your app
Push-button
Deploy, and
your App is
running in
the Cloud!

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5. 5 by
Today’s IT Challenge

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OpenShift
is
PaaS by Red Hat
Multi-language,
Auto-Scaling,
Self-service,
Elastic,
Cloud Application Platform

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Developers Choose How To Work with
OpenShift
Developer IDE
Integrations
Web Browser
Console
Command Line
Tooling
REST APIs

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OpenShift’s Intuitive and “Responsive”
Web Console Runs on Any Device

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Are You a Command-Line Fan?
OpenShift’s RHC CLI Tools
1.Create App
rhc app create -a javasample -t jbossas-7
2.Add MongoDB
rhc app cartridge add -a javasample –c mongodb-2.0
3.Add add EAR file to your deployments directory
cd javasample
cp /path/to/ear/earfilename.ear ./deployments
1.Add the EAR file to git
git add ./deployments/earfilename.ear
2.Push your code
git push
3.Done

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And, of Course, a Powerful JBoss Dev
Studio IDE Integration

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Developers Choose Languages,
Frameworks and Middleware

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Why OpenShift?
1. Strength. OpenShift is built on proven Red Hat
technologies.
2. Freedom. In OpenShift, work the way you want.
• Choice of Interface: Web Console, Command-line, or IDE
• Choice of Middleware: Java(EE6), Ruby, Node.js, PHP, Python, and
Perl
• Choice of Cloud: Public, Private, or Hybrid Cloud
• Choice of Elasticity: Automatic application scaling when needed
1. Openness. OpenShift’s open source software stack
ensures application portability and No Lock-In.

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Let’s Take a Look…

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How OpenShift Works
POWERED BY
OPENSHIFT

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OpenShift is a PaaS on top of…
Infrastructure
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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The Foundation of OpenShift is
Red Hat Enterprise Linux
RHEL RHEL RHEL
OpenShift is Built on Instances of
Red Hat Enterprise Linux (RHEL)
RHEL
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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An OpenShift Broker Manages
Multiple OpenShift Nodes
Nodes are where User Applications live.
Brokers keep OpenShift running.
Brokers Node Node Node
RHEL RHEL RHELRHEL
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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Unique SELinux Approach Enables
Security and Multi-tenancy
RHEL RHEL
SELinux Policies securely subdivide
the Node instances.
Broker Node Node Node
RHEL
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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OpenShift User Applications
Run in OpenShift Gears
RHEL RHEL
OpenShift GEARS represent secure
containers in RHEL
Broker Node Node Node
RHEL
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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RHEL RHEL
Broker Node Node
RHEL
AWS / CloudForms / OpenStack / Any VIRT Hyper-visor! / Bare Metal

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Developer
Workflow
RHEL RHEL
A Developer creates a
new application 
OpenShift creates a
GEAR
Web Console
Eclipse IDE
Cmd Line
Broker Node Node Node
RHEL
OpenShift
Gear
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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OpenShift Automates
Gear Configuration
via Cartridges
RHEL RHEL
CARTRIDGES are how
OpenShift installs
Languages & Middleware
Web Console
Eclipse IDE
Cmd Line
Broker Node Node Node
RHEL
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal
JBoss MySQL

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OpenShift Cartridge System
Enables User-Built Cartridges
Developers can add custom
language, data-store, or
middleware with with a custom
Cartridge.
CUSTOMEtc.
Etc.
Ruby
Python
PHP
Java
Postgres
MySQL
OpenShift Default
Cartridges
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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Now, Code and Push
RHEL RHEL
Developer pushes
application code via
GIT source code
management system
Git Protocol / ssh
Broker Node Node Node
RHEL
Push
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal
JBoss
Code
Git
Repo MySQL

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OpenShift Automates
Build, Test, Publish
RHEL RHEL
Broker Node Node Node
RHEL
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal
Jenkins
(CI)
Maven
(Builds) Apache
(HTTP)
Code
JBoss
Git
Repo
MySQL

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OpenShift Automates
Application Scaling!
Broker Node Node Node
RHEL
HA-Proxy MySQLJava
Cod
e
Java
Cod
e
Java
Code
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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Real-world App Dev
– Multi Environments, Single PaaS
Brokers
Nodes
RHEL
Dev DISTRICT
Nodes
QA DISTRICT
Nodes
Prod DISTRICT
Dev QA Release Mgmt
G
it
G
it
G
it
G
it
G
it

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Real-world App Dev
– Multi Environments, multiple PaaSes
Nodes
Dev
Dev QA Release Mgmt
Nodes
QA
Nodes
Prod
G
it
G
it
G
it
G
it
G
it

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OpenShift Automates the
IT Assembly Line
POWERED BY
OPENSHIFT
AWS / CloudForms / OpenStack (IaaS) / RHEV (Virt) / Bare Metal

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[stack@localhost openshift-origin-cartridge-nodejs]$ find -type f
./hooks/{ pre, post}
./env/OPENSHIFT_NODEJS_PID_DIR.erb
./env/OPENSHIFT_NODEJS_LOG_DIR.erb
./logs/.gitkeep
./openshift-origin-cartridge-nodejs.spec
./usr/template/index.html
./usr/template/server.js
./usr/template/.openshift/action_hooks/README.md
./usr/template/package.json
./usr/template/README.md
./usr/template/node_modules/.gitkeep
./usr/template/deplist.txt
./metadata/locked_files.yml
./metadata/manifest.yml
./metadata/jenkins_shell_command.erb
./versions/0.6/configuration/node.env
./versions/0.6/configuration/npm_global_module_list
./bin/setup
./bin/control
./bin/install
Demystified: Cartridge structure:
Can I make my own?

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Choice of Public, Private, or
Open Hybrid Clouds

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Choice of Public, Private, or
Open Hybrid Clouds

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Choice of Public, Private, or
Open Hybrid Clouds

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References
- http://www.openshift.com
- http://www.redhat.com/products/cloud-computing/openshift-enterprise/
- https://www.openshift.com/developers/cartridge-authors-guide
Contributions:
Part of slide deck originally presented by
Dan Juengst – Product Marketing, Red Hat

36. 36 by
Thank You
Questions?