OpenShift In a Nutshell - Episode 01 - Introduction

Presentation By:
Behnam Loghmani
Winter 2016
IRAN OpenStack Users Group
OPENSHIFT
IN A NUTSHELL
(Episode 01)
Introduction

IRAN Community| OpenStack.ir
Agenda:
●
Cloud Service Models
●
What's OpenShift?
●
OpenShift Architectures
●
Iran OpenStack Community
OpenShift Introduction

Cloud Service Models

https://www.cloudtec.ch/assets/fm/IT-Consulting/Cloud-Computing/iaas-paas-saas.png

What's OpenShift?

OpenShift is a platform as a service product from Red Hat.
OpenShift is Red Hat’s public cloud application development and hosting
platform that automates the provisioning, management and scaling of applications
so that you can focus on writing the code for your business, startup, or big idea.

OpenShift Versions
OPENSHIFT
Enterprise
OPENSHIFT
Online
OPENSHIFT
Dedicated

OpenShift Origin
●
Binary
●
Source code
●
RPMs

On Debian??!
- Memory cgroup support:
GRUB_CMDLINE_LINUX="cgroup_enable=memory"
On v1.1.2
- CPU cgroup:
cpu.cfs_quota_us and cpu.cfs_quota_us
Recompile kernel with “CONFIG_CFS_BANDWIDTH=y”
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=789019

OpenShift Online

Supported language environments
●
Haskell
●
Java
●
JavaScript
●
.Net
●
Perl
●
PHP
●
Python
●
Ruby

Supported databases
●
Microsoft SQL Server
●
MongoDB
●
MySQL
●
PostgreSQL

Supported frameworks
●
PSGI for Perl
●
Rack for Ruby
●
WSGI for Python
●
Node.js for JavaScript
●
CakePHP
●
Django
●
Flask
●
Laravel
…..

OpenShift Architectures
OpenShift v2 / OpenShift v3

Applications
- In OpenShift v2, an application was a single unit - it consisted of one web framework
and no more than one of any given cartridge type.
- Linking was limited to within an application and only worked within cartridges
designed to work together.
- In OpenShift v3 remove "application" as a keyword since "application" can mean
something different to everyone.
- Flexible linking: means you can link any two arbitrary components together.

Cartridges vs Images
●
Dependencies
●
Collocation
●
Source Code
●
Build
●
Routing

Terminology
●
Application
●
Gear vs Container
●
Cartridge vs Image
●
Domain vs Project
●
Broker vs Master

V2 :

V3 :

Iran OpenStack Community

Stay in Touch and Join Us:
●
Home Page: OpenStack.ir
●
Meetup Page: Meetup.com/Iran-OpenStack
●
Mailing List: OpenStack-ir@Lists.OpenStack.org
●
Twitter: @OpenStackIR , #OpenStackIRAN
●
IRC Channel on FreeNode: #OpenStack-ir

Thank You
Behnam Loghmani
Iran OpenStack Community Member
Behnam.loghmani@gmail.com
OpenStack.ir
We need to work together to build a better community

OpenShift In a Nutshell - Episode 01 - Introduction

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