This document discusses OpenShift, an open source Platform as a Service (PaaS) from Red Hat. It provides an overview of OpenShift Origin, including that it runs on Linux, uses brokers and nodes to manage containers called gears that deploy user applications using cartridges. It also summarizes how to get involved with the OpenShift community through forums, blogs, GitHub and IRC/email lists. The conclusion encourages attendees to join the community as PaaS can benefit both developers and sysadmins.
Docker Meetup - Melbourne 2015 - Kubernetes Deep DiveKen Thompson
Presentation given at the October 2015 Docker Meetup in Melbourne. A deep dive in to Kubernetes networking and storage and how this is being utilised in OpenShift 3.
You have heard about containers and would like to see more than some hand waving and slideware. Well sit back and enjoy. We'll cover some basic vocabulary and tech for those who are new to the technology. From there on out, it will be all demos! Starting with just deploying a simple Docker image, we will work all the way up to a complete application and scale it on demand. You will leave a great taste of the technology Red Hat and Cisco will be bringing you to get your application development on the right track!
OpenShift In a Nutshell - Episode 01 - IntroductionBehnam Loghmani
Episode 01 of "OpenShift in a nutshell" presentations in Iran OpenStack community group
This episode is about different versions of OpenShift, supported platforms, terminology and architecture of OpenShift.
I hope you will find it useful.
Build Your Own PaaS, Just like Red Hat's OpenShift from LinuxCon 2013 New Orl...OpenShift Origin
Learn how to build your platform as a service just like RedHat's OpenShift PaaS - covers all the architecture & internals of OpenShift Origin OpenSource project, how to deploy it & configure it for bare metal, AWS, OpenStack, CloudStack or any IaaS, and the community that's collaborating on the project to deliver the next-generation of secure, scale-able PaaS visit: openshift.com for more information
presented at LinuxCon by Diane Mueller in the CloudOpen track
Docker Meetup - Melbourne 2015 - Kubernetes Deep DiveKen Thompson
Presentation given at the October 2015 Docker Meetup in Melbourne. A deep dive in to Kubernetes networking and storage and how this is being utilised in OpenShift 3.
You have heard about containers and would like to see more than some hand waving and slideware. Well sit back and enjoy. We'll cover some basic vocabulary and tech for those who are new to the technology. From there on out, it will be all demos! Starting with just deploying a simple Docker image, we will work all the way up to a complete application and scale it on demand. You will leave a great taste of the technology Red Hat and Cisco will be bringing you to get your application development on the right track!
OpenShift In a Nutshell - Episode 01 - IntroductionBehnam Loghmani
Episode 01 of "OpenShift in a nutshell" presentations in Iran OpenStack community group
This episode is about different versions of OpenShift, supported platforms, terminology and architecture of OpenShift.
I hope you will find it useful.
Build Your Own PaaS, Just like Red Hat's OpenShift from LinuxCon 2013 New Orl...OpenShift Origin
Learn how to build your platform as a service just like RedHat's OpenShift PaaS - covers all the architecture & internals of OpenShift Origin OpenSource project, how to deploy it & configure it for bare metal, AWS, OpenStack, CloudStack or any IaaS, and the community that's collaborating on the project to deliver the next-generation of secure, scale-able PaaS visit: openshift.com for more information
presented at LinuxCon by Diane Mueller in the CloudOpen track
2013-04-14 Portland OpenShift Origin Community Day
OpenShift Origin Internals
Presenters: Bill DeCoste & Krishna Raman
In this talk. Bill and Krishna will dive deep into Origin's internals and architecture. Topics covered include a platform overview of the role Brokers and Cartridges play. An examination of system resources and application containers called "Gears" and "Nodes."
Putting The PaaS in OpenStack with Diane Mueller @RedHat OpenShift Origin
RedHat has created it's own OpenStack distribution that is now in preview and still a bit rough around the edges, but promises to include what is needed to deploy & evaluate a truly & complete Open Cloud environment. In addition, Red Hat wants there to be a widely used open-source community developed PaaS model for the cloud which includes being open to participation by a community of peers.
To really create a open cloud environment and to make it useful, you need to complete the stack with an PaaS. Just getting a cloud environment up and running is no longer enough. The challenge that OpenStack faces is how to get people, applications and services working on OpenStack out of the box.
One approach to the problem is to combining all the necessary pieces that go into building an OpenStack cloud (compute, storage, networking, management) with a platform as a service (PaaS) into your OpenStack distribution.
OpenShift Origin project is licensed under the Apache License 2.0, a permissive and widely-used open source license, which was selected so that the code would be available for use by the broadest range of
individuals and organizations. This is the same license chosen by the OpenStack project, for much the same reason. This license is already well known and understood by individuals and organizations already involved in cloud computing and in enterprise scale open source development.
In this session, I'll discuss RedHat's efforts with OpenStack, Fedora, & OpenShift Origin to create a more complete OpenStack distribution. Our community initiatives to ensure Origin easily and seamlessly integrates on any OpenStack distribution and how to you can add Origin into your own OpenStack distributions.
http://openstacksummitapril2013.sched.org/event/93a0a84f3623c2e1cdf9563b72f9e351#.UW2YmnAnsUU
Source - https://www.openmaru.io/?p=3228
쿠버네티스를 이해하기 위해서 반드시 알아야 하는 개념이 불변의 인프라스트럭처 입니다.
불변과 가변의 인프라스트럭처에서 서버 운영 방법을 비교하여 개념과 장점을 설명 드립니다.
이제 IT 환경이 왜 머신 중심에서 애플리케이션 중심으로 전환되고 있는지에 대해서 살펴보겠습니다.
불변의 인프라는 고급 도자기 찻잔과 비유 될 수 있습니다.
일회용 종이컵은 한번 쓰면 버리고, 구매하는데도 큰 부담이 없습니다.
하지만 고급 도자기 찻잔은 어떨까요?애지중지 관리하며 깨지면 모든 것이 끝나게 됩니다.
Extending OpenShift Origin: Build Your Own Cartridge with Bill DeCoste of Red...OpenShift Origin
Extending OpenShift Origin: Build Your Own Cartridge
Presenters: Bill DeCoste
Cartridges allow developers to provide services running on top of the Red Hat OpenShift Platform-as-a-Service (PaaS). OpenShift already provides cartridges for numerous web application frameworks and databases. Writing your own cartridges allows you to customize or enhance an existing service, or provide new services. In this session, the presenter will discuss best practices for cartridge development and the latest changes in the OpenShift cartridge support.
* Latest changes made in the platform to ease cartridge development
* OpenShift Cartridges vs. plugins
* Outline for development of a new cartridge
* Customization of existing cartridges
* Quickstarts: leveraging a cartridge or cartridges to provide a complete application
CONTAINERS WORKSHOP DURING SAUDI HPC 2016 : DOCKER 101, DOCKER, AND ITS ECO SYSTEM FOR DISTRIBUTED SYSTEMS by Walid Shaari
This workshop will cover the Theory and hands-on of Docker containers, and Its eco system. The foundations of the Docker platform, including an overview of the platform system components, images, containers and repositories, installation , using Docker containers from repositories e.g. dockerhub, how to create a container using Dockerfile, containers development life cycle. The strategy is to demonstrate through "live demo, and shared exercise" the reuse and customization of components to build a distributed system case service gradually
http://www.hpcsaudi.com/
OpenShift In a Nutshell - Episode 05 - Core Concepts Part IBehnam Loghmani
Episode 05 of "OpenShift in a nutshell" presentations in Iran OpenStack community group
This episode is about core concepts in openshift.
Part 1 include concepts of Containers, Images, Pods and services
I hope you will find it useful.
OpenShift In a Nutshell - Episode 03 - Infrastructure part IBehnam Loghmani
Episode 03 of "OpenShift in a nutshell" presentations in Iran OpenStack community group
This episode is about master's components and high availability masters.
I hope you will find it useful.
One of the impediments to becoming an active technical contributor in the OpenStack community is setting up an efficient R&D environment which includes deploying a simple cloud. Using RDO-manager, get a basic cloud up and running with the fewest steps and minimal hardware so you can focus on the fun stuff - development
DevFestMN 2017 - Learning Docker and Kubernetes with OpenshiftKeith Resar
Hands-on lab discovering containers (through docker), the need for container orchestration (using Kubernetes), and the place for a container PaaS (via OpenShift)
2013-04-14 Portland OpenShift Origin Community Day
OpenShift Origin Internals
Presenters: Bill DeCoste & Krishna Raman
In this talk. Bill and Krishna will dive deep into Origin's internals and architecture. Topics covered include a platform overview of the role Brokers and Cartridges play. An examination of system resources and application containers called "Gears" and "Nodes."
Putting The PaaS in OpenStack with Diane Mueller @RedHat OpenShift Origin
RedHat has created it's own OpenStack distribution that is now in preview and still a bit rough around the edges, but promises to include what is needed to deploy & evaluate a truly & complete Open Cloud environment. In addition, Red Hat wants there to be a widely used open-source community developed PaaS model for the cloud which includes being open to participation by a community of peers.
To really create a open cloud environment and to make it useful, you need to complete the stack with an PaaS. Just getting a cloud environment up and running is no longer enough. The challenge that OpenStack faces is how to get people, applications and services working on OpenStack out of the box.
One approach to the problem is to combining all the necessary pieces that go into building an OpenStack cloud (compute, storage, networking, management) with a platform as a service (PaaS) into your OpenStack distribution.
OpenShift Origin project is licensed under the Apache License 2.0, a permissive and widely-used open source license, which was selected so that the code would be available for use by the broadest range of
individuals and organizations. This is the same license chosen by the OpenStack project, for much the same reason. This license is already well known and understood by individuals and organizations already involved in cloud computing and in enterprise scale open source development.
In this session, I'll discuss RedHat's efforts with OpenStack, Fedora, & OpenShift Origin to create a more complete OpenStack distribution. Our community initiatives to ensure Origin easily and seamlessly integrates on any OpenStack distribution and how to you can add Origin into your own OpenStack distributions.
http://openstacksummitapril2013.sched.org/event/93a0a84f3623c2e1cdf9563b72f9e351#.UW2YmnAnsUU
Source - https://www.openmaru.io/?p=3228
쿠버네티스를 이해하기 위해서 반드시 알아야 하는 개념이 불변의 인프라스트럭처 입니다.
불변과 가변의 인프라스트럭처에서 서버 운영 방법을 비교하여 개념과 장점을 설명 드립니다.
이제 IT 환경이 왜 머신 중심에서 애플리케이션 중심으로 전환되고 있는지에 대해서 살펴보겠습니다.
불변의 인프라는 고급 도자기 찻잔과 비유 될 수 있습니다.
일회용 종이컵은 한번 쓰면 버리고, 구매하는데도 큰 부담이 없습니다.
하지만 고급 도자기 찻잔은 어떨까요?애지중지 관리하며 깨지면 모든 것이 끝나게 됩니다.
Extending OpenShift Origin: Build Your Own Cartridge with Bill DeCoste of Red...OpenShift Origin
Extending OpenShift Origin: Build Your Own Cartridge
Presenters: Bill DeCoste
Cartridges allow developers to provide services running on top of the Red Hat OpenShift Platform-as-a-Service (PaaS). OpenShift already provides cartridges for numerous web application frameworks and databases. Writing your own cartridges allows you to customize or enhance an existing service, or provide new services. In this session, the presenter will discuss best practices for cartridge development and the latest changes in the OpenShift cartridge support.
* Latest changes made in the platform to ease cartridge development
* OpenShift Cartridges vs. plugins
* Outline for development of a new cartridge
* Customization of existing cartridges
* Quickstarts: leveraging a cartridge or cartridges to provide a complete application
CONTAINERS WORKSHOP DURING SAUDI HPC 2016 : DOCKER 101, DOCKER, AND ITS ECO SYSTEM FOR DISTRIBUTED SYSTEMS by Walid Shaari
This workshop will cover the Theory and hands-on of Docker containers, and Its eco system. The foundations of the Docker platform, including an overview of the platform system components, images, containers and repositories, installation , using Docker containers from repositories e.g. dockerhub, how to create a container using Dockerfile, containers development life cycle. The strategy is to demonstrate through "live demo, and shared exercise" the reuse and customization of components to build a distributed system case service gradually
http://www.hpcsaudi.com/
OpenShift In a Nutshell - Episode 05 - Core Concepts Part IBehnam Loghmani
Episode 05 of "OpenShift in a nutshell" presentations in Iran OpenStack community group
This episode is about core concepts in openshift.
Part 1 include concepts of Containers, Images, Pods and services
I hope you will find it useful.
OpenShift In a Nutshell - Episode 03 - Infrastructure part IBehnam Loghmani
Episode 03 of "OpenShift in a nutshell" presentations in Iran OpenStack community group
This episode is about master's components and high availability masters.
I hope you will find it useful.
One of the impediments to becoming an active technical contributor in the OpenStack community is setting up an efficient R&D environment which includes deploying a simple cloud. Using RDO-manager, get a basic cloud up and running with the fewest steps and minimal hardware so you can focus on the fun stuff - development
DevFestMN 2017 - Learning Docker and Kubernetes with OpenshiftKeith Resar
Hands-on lab discovering containers (through docker), the need for container orchestration (using Kubernetes), and the place for a container PaaS (via OpenShift)
From Zero to Cloud: Revolutionize your Application Life Cycle with OpenShift ...OpenShift Origin
From Zero to Cloud: Revolutionize your Application Life Cycle with OpenShift PaaS
Talk given by Diane Mueller, OpenShift Origin Community Manager at FISL 15 on May 9th, 2014
Deploying & Scaling OpenShift on OpenStack using Heat - OpenStack Seattle Mee...OpenShift Origin
OpenShift Origin is an open-source Platform-as-a-Service project sponsored by Red Hat. In this session, Diane will be discussingOpenShift's use of Heat to deploy OpenShift on OpenStack showcase a number of aspects of configuring and managing a complex application on OpenStack’s Diskimage-builder and OpenStack’s Heat, both tools are bundled with RHOS 4.
Diane will walk thru the basic architecture of the application being deployed (OpenShift), then discuss how to configure OpenStack Neutron networking for OpenShift, register images with Glance, monitor Heat, and then show how to point OpenShift command line client to the broker's public ip address and begin using OpenShift.
All the heat templates used are available here:https://github.com/openstack/heat-templates and this is an awesome way to learn about Heat and contribute to both the OpenShift & OpenStack communities.
Speaker: Diane Mueller, OpenShift Origin Community Manager
DevOps, PaaS and the Modern Enterprise CloudExpo Europe presentation by Diane...OpenShift Origin
The rise in application complexity is answered by the emergence of DevOps and simplified by adding a PaaS bringing agility, speed, and compliance to the modern Enterprise.
OpenShift is Red Hat's Platform-as-a-Service (PaaS) that lets developers quickly develop, host, and scale Docker container-based applications. OpenShift enables a uniform and standardised approach to container management across all hosting options including AWS/EC2 and other private/public cloud and on/off-premise variants. At this session, you will learn how Red Hat's enterprise clients are using OpenShift to enable their digital transformation initiatives. Examples will cover how realising a hybrid cloud strategy can simplify and reduce the risk of migrating and transitioning application workloads to containers in the cloud.
Alex Smith, Solutions Architect, Amazon Web Services, ASEAN
Stephen Bylo, Senior Solution Architect, Red Hat Asia Pacific Pte Ltd
Traditional virtualization technologies have been used by cloud infrastructure providers for many years in providing isolated environments for hosting applications. These technologies make use of full-blown operating system images for creating virtual machines (VMs). According to this architecture, each VM needs its own guest operating system to run application processes. More recently, with the introduction of the Docker project, the Linux Container (LXC) virtualization technology became popular and attracted the attention. Unlike VMs, containers do not need a dedicated guest operating system for providing OS-level isolation, rather they can provide the same level of isolation on top of a single operating system instance.
An enterprise application may need to run a server cluster to handle high request volumes. Running an entire server cluster on Docker containers, on a single Docker host could introduce the risk of single point of failure. Google started a project called Kubernetes to solve this problem. Kubernetes provides a cluster of Docker hosts for managing Docker containers in a clustered environment. It provides an API on top of Docker API for managing docker containers on multiple Docker hosts with many more features.
This presentation covers both the Cloud Foundry Elastic Runtime (known by many as just "Cloud Foundry") as well as the Operations Manager (known by many as BOSH). For each, the main components are covered with interactions between them.
Revolutionizing app delivery with Linux and containersRed Hat Events
Recent advancements in Linux including Linux containers are changing the way that companies will develop, consume, and manage applications. As with traditional applications, containerized applications interact with and depend on the operating system. In this talk, Matt Hicks will outline what needs to happen to support this change, and how communities and open source projects such as Docker, Kubernetes, and others are coming together to deliver this next wave of enterprise application architecture.
Welcome to the @OpenShift Origin Community by Diane Mueller @pythondj @redhatOpenShift Origin
Welcome to OpenShift Origin Community
Presenter: Diane Mueller
Diane Mueller (Cloud Ecosystem Evangelist) will set the stage for the day's event with a history of the OpenShift Origin Community efforts. She'll discuss the need for an Open Source Platform-as-a-Service, the contributions made to date, and how to contribute to OpenShift Origin.
Whether you're a seasoned Java developer looking to start hacking on EE6 or you just wrote your first line of Ruby yesterday, the cloud is perfect for developing apps in any modern language or framework. Join us for an action-packed hour of power where we'll show you how to deploy an application written in a language of your choice - Java, Ruby, PHP, Perl or Python, with a framework of your choice - EE6, CDI, Seam, Zend, Rails, Sinatra, PerlDancer or Django to the OpenShift PaaS in just minutes. Use the following promotional code when signing up to try out OpenShift: CODEMOTION
As developers, we are blessed with a huge variety of tools to help us in our daily jobs. One of the most popular ones that has shown up over the last few years is Docker. How does one go about getting started with Docker? Why should you invest your time in this new technology? What can you do with Docker? Let's find out!
OpenShift Primer - get your business into the Cloud today!Eric D. Schabell
Whether your business is running on applications based on Java EE6, PHP or Ruby, the cloud is turning out to be the perfect environment for developing your business.
There are plenty of clouds and platform-as-a-services to choose from, but where to start? Join us for an action-packed hour of power where we'll show you how to deploy your existing application written in the language of your choice - Java, Ruby, PHP, Perl or Python, with the framework of your choice - EE6, CDI, Seam, Spring, Zend, Cake, Rails, Sinatra, PerlDancer or Django to the OpenShift PaaS in just minutes.
All this and without having to rewrite your app to get it to work the way the cloud provider thinks your app should work.
You can have your business applications running in the cloud on OpenShift Express in seconds, while also making use of the web browser do the heavy-lifting of provisioning clusters, deploying, monitoring and auto-scaling apps in OpenShift Flex.
If you want to learn how the OpenShift PaaS and investing an hour of your time can change everything you thought you knew about putting your business applications in the cloud, this session is for you!
Linux Containers and Docker SHARE.ORG Seattle 2015Filipe Miranda
This slide deck shows us an introduction to Linux Containers (LXC) and Docker for Linux on IBM z Systems.
One example of a commercial use of Linux Containers (and Docker) is Red Hat Openshift, which is is also covered at the end.
PHPIDOL#80: Kubernetes 101 for PHP Developer. Yusuf Hadiwinata - VP Operation...Yusuf Hadiwinata Sutandar
Sesi Terakhir sebelum libur PHPID-OL memasuki Bulan Puasa Ramadhan. Kita akan ketemu lagi 19 April 2021.
Topik penutup yang akan diisi oleh Om Yusuf Hadiwinata, Praktisi Teknologi terkemuka dan ternama di lingkungan Industri IT Indonesia...
Ciyaooo.... Maju Terus PHP Indonesia
Link Video: https://fb.me/e/hzWbd0FeW
CoreOS automated MySQL Cluster Failover using Galera ClusterYazz Atlas
CoreOS Fleet and Etcd provide a simple and eloquent framework for application clusters to both auto-configure and recover from node failure. Galera Cluster is a multi-master, open solution for clustering MySQL. Mix the two, sprinkle in a bit of “glue” and you have a Docker based MySQL cluster that will react automatically to container failure. This presentation will cover the nuts and bolts of automating a Galera Cluster, built from Docker Images and deployed in a distributed fashion using etcd, confd, and fleet for both initial and failure recovery configuration.
The Information Technology have led us into an era where the production, sharing and use of information are now part of everyday life and of which we are often unaware actors almost: it is now almost inevitable not leave a digital trail of many of the actions we do every day; for example, by digital content such as photos, videos, blog posts and everything that revolves around the social networks (Facebook and Twitter in particular). Added to this is that with the "internet of things", we see an increase in devices such as watches, bracelets, thermostats and many other items that are able to connect to the network and therefore generate large data streams. This explosion of data justifies the birth, in the world of the term Big Data: it indicates the data produced in large quantities, with remarkable speed and in different formats, which requires processing technologies and resources that go far beyond the conventional systems management and storage of data. It is immediately clear that, 1) models of data storage based on the relational model, and 2) processing systems based on stored procedures and computations on grids are not applicable in these contexts. As regards the point 1, the RDBMS, widely used for a great variety of applications, have some problems when the amount of data grows beyond certain limits. The scalability and cost of implementation are only a part of the disadvantages: very often, in fact, when there is opposite to the management of big data, also the variability, or the lack of a fixed structure, represents a significant problem. This has given a boost to the development of the NoSQL database. The website NoSQL Databases defines NoSQL databases such as "Next Generation Databases mostly addressing some of the points: being non-relational, distributed, open source and horizontally scalable." These databases are: distributed, open source, scalable horizontally, without a predetermined pattern (key-value, column-oriented, document-based and graph-based), easily replicable, devoid of the ACID and can handle large amounts of data. These databases are integrated or integrated with processing tools based on the MapReduce paradigm proposed by Google in 2009. MapReduce with the open source Hadoop framework represent the new model for distributed processing of large amounts of data that goes to supplant techniques based on stored procedures and computational grids (step 2). The relational model taught courses in basic database design, has many limitations compared to the demands posed by new applications based on Big Data and NoSQL databases that use to store data and MapReduce to process large amounts of data.
Course Website http://pbdmng.datatoknowledge.it/
Contact me to download the slides
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https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
The Art of the Pitch: WordPress Relationships and Sales
Build a PaaS with OpenShift Origin
1. Build a PaaS with OpenShift
Origin
Steven Citron-Pousty
PaaS Dust Spreader, Red Hat
@TheSteve0
Bill DeCoste
Principal Software Engineer
wdecoste@redhat.com
1
2. Agenda
•
See a PaaS in action
•
See how we build it under the hoods
•
Look at how to get involved with the community
SIGN UP CODE:
SCaLE11
2
3. Assumptions
1) You know Linux
2) You are either a developer or a sysadmin
3) You will ask questions
3
4. What is OpenShift?
Red Hat’s free platform as a service for applications in the cloud.
4
9. •
Operations care about stability and performance
•
Developers just want environments without waiting
OpenShift Enterprise creates a peaceful
environment for both parties
9
10. Demo
1. Bring up a Python App
2. Push a code change
3. Add a MySQL database
10
12. FLAVORS OF
OPENSHIFT
Open
Source
Project origin
On-
Public premise
Cloud or Private
Service Cloud
Software
12
13. KEY TERMS
•
Broker – Management host, orchestration of Nodes
•
Node – Compute host containing Gears
•
Gear – Allocation of fixed memory, compute, and
storage resources for running applications
•
Cartridge – A technology/framework (PHP, Perl,
Java/JEE, Ruby, Python, MySQL, etc.) to build
applications
•
Client Tools – CLI, Eclipse, Web Console for creating
and managing applications
13
14. RUNS ON IaaS
OpenShift Origin is a PaaS that runs on top of..... Infrastructure
Amazon EC2 Rackspace Bare Metal
OpenStack RHEV VMWare
14
15. SERVER TYPES
Each OpenShift Origin server will be one of the following
types:
• Broker Host
• Node Host
15
16. BROKER
An OpenShift Broker can manage multiple node hosts.
Nodes are where User Applications live.
Fedora/RHEL Fedora/RHEL Fedora/RHEL
Brokers Node Node
16
17. BROKER
The Broker is responsible for state, DNS, and authentication.
17
23. COMMUNICATION
Communication from external clients occurs through the REST API
The Broker then communicates through the messaging service to nodes
23
26. Easy to install on Fedora 18
●
Using Vagrant and Puppet
●
http://www.krishnaraman.net/installing-openshift-origin-using-vagrant-and-puppet/
Also install on Fedora 17
●
Using kickstart
●
http://www.krishnaraman.net/building-a-multi-node-openshift-origin-paas-from-
source/
26
29. GET INVOLVED!
OPENSOURCE
●
GitHub: https://github.com/openshift
●
Origin: origin-server
●
Internal Extensions: li
●
Community Cartridges: origin-community-cartridges
●
https://github.com/jwhonce/origin-server/tree/dev/cartridge_refactor
●
Quickstarts, Examples
●
Watch, Star, Contribute!!!
29
30. Conclusion
1. PaaS is a Developers AND Sysadmins dream
2. We are doing really cool things with Linux to make it
happen
3. Easy to get started on Fedora
4. Fun and interesting place to spend your time – COME
JOIN US!!!
SIGN UP CODE:
SCaLE11
http://openshift.redhat.com
30
Editor's Notes
So, what you need is the ease of use and access of a SaaS application, but you need it with your purpose-built, mission-critical, applications. PaaS gives you just that. It allows you to quickly and easily build the application that YOU need. Whether this is for your group, your enterprise, or your next BIG IDEA, you can build it and launch your specific code on a PaaS and not have to deal with the underlying infrastructure, middleware, and management headaches. Because of the built-in auto-scaling and elasticity provided by the PaaS infrastructure, PaaS's are ideal for modern data-hungry Big Data, Mobile, and Social applications. With a PaaS, you can focus on what you should be focused on... your application code. And let the Cloud provide what it is suppose to: Ease, Scale and Power
And, once the application is launched within the OpenShift PaaS, OpenShift provides the elasticity expected in a Cloud Application Platform by automatically scaling the application as needed to meet demand. When created, applications can be flagged as “Scalable” (some apps may not want to be scaled). When OpenShift sees this flag, it creates an additional Gear and places an HA-Proxy software load-balancer in front of the application. The HA-Proxy then monitors the incoming traffic to the application. When the number of connections to the application crosses a certain pre-defined threshold, OpenShift will then horizontally scale the application by replicating the application code tier of the application across multiple Gears. For JBoss applications, OpenShift will scale the application using JBoss Clustering which allows stateful or stateless applications to be scaled gracefully. For Ruby, PHP, Python, and other script-oriented languages, the application will need to be designed for stateless scaling where the application container is replicated across multiple gears. The Database tier is not scaled in OpenShift today. Automatic application scaling is a feature that is unique to OpenShift among the popular PaaS offerings that are out there. Automatic scaling of production applications is another example of how OpenShift applies automation technologies and a cloud architecture to make life better for both IT Operations and Development. <next slide>
OpenShift Origin - Port Proxy Linux handles the loopback interface's 127.0.0.0/8 address block specially: A request from an address in this block can only go to an address in the same block (put another way, a connection on the loopback interface is confined to the loopback interface). OpenShift uses this fact to contain hosted applications: a gear is prohibited by iptables from listening on an external network interface, and so a given gear can only respond to connections that come from processes on the same node. For the common case of Web connections, the system Apache instance acts as a reverse proxy, forwarding requests that come in on the external interface to the appropriate 127.x.y.z address; see the documentation on the node component. However, sometimes gears need to accept other types of connections. The two most common such scenarios are the following: A gear needs to connect to another gear (which may be on the same node or another node). A gear needs to listen for connections on a public interface besides HTTP connections to port 80. For example, a game server needs to expose a port to receive incoming connections from clients, and a database needs to expost a port so that other gears can connect to it. To meet these needs, OpenShift uses haproxy to proxy TCP connections between an external-facing network interface and the loopback interface. Each gear is assigned five exposable ports, and the gear may establish a forwarding rule for each of these ports to forward connections on the the port on the external interface to an arbitrary port on the gear's assigned loopback address. To provide haproxy with adequate ports, we shift the ephemeral port range down to 15000-35530, so that Linux will not use ports outside of this range for connections for which no port is given explicitly. This means that ports 35531-65535 will be available for haproxy's exclusive use. Note: Given that each gear is assigned 5 ports, this imposes a limit of 6000 gears per node. The interaction with haproxy is implemented on the cartridge side in cartridges/openshift-origin-cartridge-abstract/abstract/info/lib/network and: OpenShift Origin - Node Component Hosted applications are run in containers called "gears." These gears are run on hosts (which can be physical hosts or virtual machines) called "nodes." Each node runs a system Apache instance with mod_proxy that listens on port 80 on a public-facing network interface. Each gear is assigned an address in the 127.0.0.0/8 block, and a hosted Web application listens on port 8080 on its assigned private 127.x.y.z address. When a Web client requests a URL for a hosted Web application, the request goes to the node's system Apache instance. The system Apache instance examines the virtual-host header (the "Host:" HTTP header) and dispatches the request to the 127.x.y.z:8080 private address of the appropriate gear. For an explanation of how connections other than regular HTTP connections are handled, see the documentation on the port-proxy.