Four levels of HA in Cloud Foundry
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The document describes the four levels of high availability (HA) in Cloud Foundry: 1) Elastic Runtime distributes application instances across availability zones and replaces failed instances. 2) Application health is monitored and actual and desired states are compared to ensure instances are running. 3) BOSH monitors processes and virtual machines for health and alerts responders if issues arise. Failed VMs are recovered. 4) Infrastructure as a service provides the underlying infrastructure that supports the other HA levels.
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![I work on a PaaS…
“For us, PaaS is a set of services aimed at
developers that helps them develop and test apps
without having to worry about the underlying
infrastructure. Developers don't want to have to
worry about provisioning the servers, storage and
backup associated with developing and launching
an app.”
[1] http://www.javaworld.com/article/2078801/java-app-dev/forrester--paas-makes-developers-happy.html
[2] http://www.infoworld.com/d/cloud-computing/paas-primer-what-platform-service-and-why-does-it-matter-212696](https://image.slidesharecdn.com/cfsummit20144levelsha2-140616082404-phpapp02/85/Four-levels-of-HA-in-Cloud-Foundry-3-320.jpg)
![I work on a PaaS…
“For us, PaaS is a set of services aimed at
developers that helps them develop and test apps
without having to worry about the underlying
infrastructure. Developers don't want to have to
worry about provisioning the servers, storage and
backup associated with developing and launching
an app.”
[1] http://www.javaworld.com/article/2078801/java-app-dev/forrester--paas-makes-developers-happy.html
[2] http://www.infoworld.com/d/cloud-computing/paas-primer-what-platform-service-and-why-does-it-matter-212696](https://image.slidesharecdn.com/cfsummit20144levelsha2-140616082404-phpapp02/85/Four-levels-of-HA-in-Cloud-Foundry-4-320.jpg)
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Pivotal Cloud Platform Roadshow is coming to a city near you!
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There is a special (discount) offer in there! :-)
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Devops: Enabled Through a Recasting of Operational Rolescornelia davis Delivered at CF Summit Berlin, 2 Nov 2015.
One thing that everyone agrees on is that “Devops” is about reducing the friction between dev and ops. While it might not be immediately apparent, CF enables a separation of “operations” into two roles: platform ops and application ops. Platform ops is responsible for maintaining a secure platform with sufficient functionality and capacity so that application developers and application operators can perform their work. And application operators are responsible for keeping business applications up and running, so that consumers receive superior service, 24x7x365. By moving further up the stack, app operators can be far closer to the line of business owners, getting them speaking the same language. In this session we demonstrate how Cloud Foundry enables this, we talk about customers who are taking advantage of it, and we cover the tools available for each of the roles.
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The third platform, characterized by a fluid infrastructure where virtualized servers come into and out of existence, and workloads are constantly being moved about and scaled up and down to meet variable demand, calls for new design patterns, processes and even culture. One of the most well known descriptions of these new paradigms is the Twelve Factor App (12factor.net), which describes elements of cloud native applications. Many of these needs are squarely met through the Spring Framework, others require support from other systems. In this session we will examine each of the twelve factors and present how Spring, and platforms such as Cloud Foundry satisfy them, and in some cases we’ll even suggest that responsibility should shift from Spring to platforms. At the conclusion you will understand what is needed for cloud-native applications, why and how to deliver on those requirements.
Removing Barriers Between Dev and Ops
Removing Barriers Between Dev and Opscornelia davis Devops @ VMworld 2015 Presentation.
DevOps requires a separation of concerns between the application-focused teams and the platform-focused teams. While Platform and Application Operations have many similarities (monitor, logs, scale, upgrade, etc.) each is done with a different frame of reference. This workshop will provide an in-depth view into how a modern platform like Pivotal Cloud Foundry can eliminate the barriers between Development and Operations.
The workshop will showcase the difference in contexts for the application operations and platform operations teams, including monitoring, log analysis, capacity management, and upgrading. As well as show how separating the concerns of application operators (and application teams) from platform operators can remove the barriers between Dev and Ops. At this session we bring together both Dev and Ops with a combination of presentations and demos highlighting the capabilities of a modern platform. Monitor, log, scale, upgrade, and more, all with an integrated and auditable workflow for developers and operators.
Competing with Software: It Takes a Platform -- Devops @ EMC World
Competing with Software: It Takes a Platform -- Devops @ EMC Worldcornelia davis Presentation at Devops @ EMC World event, 3 May 2015
In Mark Andreessen’s 2010 piece for the Wall Street Journal, in which he declared “Software is Eating the World,” he talked about well established, large enterprises loosing footing to small, nimble startup companies who are far better at bringing software to their consumers. In fact, it’s not as much that these upstarts are better at meeting customer demands, rather they are the cause of the increased expectations, providing consumers with things they didn’t even know they wanted. What are the factors behind their success? New development and operational approaches including extreme agile & test driven development, continuous delivery and devops practices all play a significant role, and while a part of the difference is cultural, tools matter. In this session we’ll look at why a software-driven enterprise needs platform. Google has one. Facebook has one. Netflix has one. Your enterprise needs one.
Pivotal Cloud Platform Roadshow Keynote
Pivotal Cloud Platform Roadshow Keynotecornelia davis Keynote presentation for the Pivotal Cloud Platform Roadshow. Introduces the market drivers for the Cloud Foundry Platform as a Service, discusses open source softwared (Cloud Foundry is OSS) and introduces the fundamentals of the platform.
Evolving Devops: The Benefits of PaaS and Application Dial Tone
Evolving Devops: The Benefits of PaaS and Application Dial Tonecornelia davis Differentiate between Infrastructure as a Service (IaaS), enhanced IaaS (Iaas+) and Platform as a Service (PaaS). We define IaaS+, which remains an infrastructure virtualization solution, and make clear the benefits of providing making the application (instead of the virtual machine) the first class abstraction with which developers and operations teams interact. When enough functionality is available around the *application* devops practices provide greater value.
These slides were presented as a part a Pivotal webinar - a replay can be accessed here: http://www.pivotal.io/platform-as-a-service/evolving-devops-the-benefits-of-paas-and-application-dial-tone
Software Quality in the Devops World: The Impact of Continuous Delivery on Te...
Software Quality in the Devops World: The Impact of Continuous Delivery on Te...cornelia davis Covers techniques, both technical and cultural/process, for ensuring quality in software delivered in the continuous delivery world we live in today.
First presented at the IC3 Conference in October 2014.
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Four levels of HA in Cloud Foundry
- 1. © 2014
- 2. FOUR LEVELS OF HA IN CLOUD FOUNDRY Cornelia Davis @cdavisafc [email protected]
- 3. I work on a PaaS… “For us, PaaS is a set of services aimed at developers that helps them develop and test apps without having to worry about the underlying infrastructure. Developers don't want to have to worry about provisioning the servers, storage and backup associated with developing and launching an app.” [1] http://www.javaworld.com/article/2078801/java-app-dev/forrester--paas-makes-developers-happy.html [2] http://www.infoworld.com/d/cloud-computing/paas-primer-what-platform-service-and-why-does-it-matter-212696
- 4. I work on a PaaS… “For us, PaaS is a set of services aimed at developers that helps them develop and test apps without having to worry about the underlying infrastructure. Developers don't want to have to worry about provisioning the servers, storage and backup associated with developing and launching an app.” [1] http://www.javaworld.com/article/2078801/java-app-dev/forrester--paas-makes-developers-happy.html [2] http://www.infoworld.com/d/cloud-computing/paas-primer-what-platform-service-and-why-does-it-matter-212696
- 5. Application Instances and Availability Zones Router DEA DEA DEA Cloud Foundry Elastic Runtime DEA DEA DEA Zone 1 Zone 2 App Ops
- 6. Application Instances and Availability Zones Router DEA DEA DEA Cloud Foundry Elastic Runtime DEA DEA DEA Zone 1 Zone 2 Application instances are evenly distributed over two availability zones. App Ops
- 7. Application Instances and Availability Zones Router DEA DEA DEA Cloud Foundry Elastic Runtime DEA DEA DEA Zone 1 Zone 2 Application instances are evenly distributed over two availability zones. Loosing an AZ keeps instances running and available. App Ops
- 8. Router Failed Application Instances Replaced Blobstore Cloud Controller Health Manager Messaging (NATS) DEA DEA DEA App Ops Cloud Foundry Elastic Runtime
- 9. Router Failed Application Instances Replaced Blobstore Cloud Controller Health Manager Actual State Messaging (NATS) DEA DEA DEA App Ops Cloud Foundry Elastic Runtime
- 10. Router Failed Application Instances Replaced Blobstore Cloud Controller Health Manager Actual StateDesired State Messaging (NATS) DEA DEA DEA App Ops Cloud Foundry Elastic Runtime
- 11. Router Failed Application Instances Replaced Blobstore Cloud Controller Health Manager Actual StateDesired State Messaging (NATS) DEA DEA DEA App Ops Cloud Foundry Elastic Runtime
- 12. Router Failed Application Instances Replaced Blobstore Cloud Controller Health Manager Actual StateDesired State Messaging (NATS) DEA DEA DEA App Ops Cloud Foundry Elastic Runtime
- 13. Message Bus ERS Processes are Monitored IaaSCloud Foundry BOSH Health Monitor Health Manager DEA Cloud Controller Responders: pager email monitoring … PaaS Ops
- 14. Message Bus ERS Processes are Monitored IaaSCloud Foundry BOSH Health Monitor Health Manager DEA Cloud Controller Responders: pager email monitoring … PaaS Ops
- 15. Message Bus ERS Processes are Monitored IaaSCloud Foundry BOSH Health Monitor Health Manager DEA Cloud Controller Responders: pager email monitoring … PaaS Ops
- 16. Message Bus VMs are Monitored IaaS Health Monitor Health Manager Cloud Controller DEA Responders: pager email monitoring resurrector … BOSH Director Actual State DEA PaaS Ops Cloud Foundry BOSH
- 17. Message Bus VMs are Monitored IaaS Health Monitor Health Manager Cloud Controller DEA Responders: pager email monitoring resurrector … BOSH Director Actual State DEA PaaS Ops Cloud Foundry BOSH Desired State
- 18. Message Bus VMs are Monitored IaaS Health Monitor Health Manager Cloud Controller Responders: pager email monitoring resurrector … BOSH Director Actual StateDesired State PaaS Ops Cloud Foundry BOSH
- 19. Message Bus VMs are Monitored IaaS Health Monitor Health Manager Cloud Controller Responders: pager email monitoring resurrector … BOSH Director (CPI) Actual StateDesired State DEA PaaS Ops Cloud Foundry BOSH
- 20. Four levels of HA in PCF Elastic Runtime (ERS): Distribution across availability zones Application health management and recovery BOSH (cluster management): Process monitoring, recovery and alerting Virtual machine health monitoring, recovery and alerting
- 21. Too slow for you? How about <28 seconds? http://blog.gopivotal.com/cloud-foundry-pivotal/products/the-four-levels-of-ha-in-pivotal-cf @cdavisafc
- 22. © 2014