Developing applications for the cloud

377 views

Published on

As we know, HP is all about "The New Style of IT". To achieve this, HP has highlighted 4 Big Bets: Cloud, Security, Mobility and Big Data. Bart Blommaerts, Expert Information Developer, is going to talk about “Developing applications for the Cloud“. Bart will focus on these questions:

Why do we want applications in the cloud?
Which applications do we want in the cloud?
What methodology do we need to use, to move to the cloud?
Does the cloud have implications on how applications should be developed?


Bart will demonstrate potential pitfalls, and explain the HP approach that aims to avoid issues on the performance, elasticity, resilience and security of Cloud applications. This brown bag session will be an incremental update of a presentation Bart did at HP Discover in Barcelona last year. It is about concepts and methodology, not about technical implementation.

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

Developing applications for the cloud

  1. 1. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Developing applicationsforthecloud Bart Blommaerts – HP Enterprise Services Brussels – July 1, 2014
  2. 2. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Why application development in the cloud? New economics • Pay for what you use • Shift from capex to opex • Accelerate time to value Speed • Faster deployment • Reduced patching or maintenance • Reliability and fault- tolerance Agility & innovation • Enable new apps and services • Latest software for users • Internet collaboration/ global reach $
  3. 3. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Applications in the cloud Perception “Cloud is about operations and infrastructure” Reality The business is concerned with user services (i.e. dev & ops together) Cloud ROI depends on application DNA “All applications make sense in the cloud” Only apps with certain usage profiles are an economic fit for the cloud “Apps can just be moved to the cloud for cloud benefits” Cloud has implications for HOW applications should be built
  4. 4. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. DevOps IT Operations Keys to bridge the gap: “Build to run” “Regular releases reduce risk” Quality Automation Collaboration Agile Delivery Apps / Dev Continuous Delivery
  5. 5. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. “Developers,especiallyforhome-grownapplications, maydomanynonstandardthings(makecallstothe hardware,makeassumptionsaboutthenetwork infrastructureorenvironmentitisrunningin,andsoon). Youhavetothinkdifferentlyifyouarebuilding applicationsthatwillrunacrosswide-areanetworksor acrossdatacenters.” – CIO, software vendor Source: SandHill Group, Leaders in the Cloud, March 2010
  6. 6. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The key application considerations Application ‘cloud-readiness’ Performance Application elasticity drives cloud economics. Apps must be designed to scale up for agility AND down for cost savings. An under-performing application can negate the savings promised by the cloud. In the cloud, it is more important to anticipate and proactively handle failures. Cloud brings new risks for apps in a shared environment. Security should be built-in, verified and monitored. Elasticity Resilience Security
  7. 7. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Cloud savings are dependent on a performing application Performance: Impacts your savings Performance Wasted investment in application virtual images $ Spent on virtual images Businessdemand
  8. 8. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Modular applications to enable virtual services Performance: Our approach Performance Module 1 Module 2 Module n Application
  9. 9. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Performance: new applications Performance “Architecting modularity in” from the beginning Business • Think in services • Think beyond the current scope: future reuse? Multi-tenancy? Development • Use language specific module technologies – Packaging, Scalability, .. • Build services with own life cycle • Consider load-balancers
  10. 10. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Performance: application transformation Performance Business • Identify services in existing applications • Think beyond the current scope: future reuse? Multi-tenancy? Development • Iterative refactoring • Pay attention to service integration
  11. 11. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Elasticity Elasticity and cloud benefits Infrastructurecost Forecasted Demand Time Traditional Approach Fully Elastic Actual Demand A ‘cloud-optimized’ application allows much closer alignment of costs with actual demand
  12. 12. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Workload patterns suited for cloud Usage Compute Time Average Inactivity Period “On and off” • On and off workloads (e.g. batch job) • Over provisioned capacity is wasted • Time to market can be cumbersome Compute Time “Unpredictable bursting” Average Usage • Unexpected/unplanned peak in demand • Sudden spike impacts performance • Can’t over provision for extreme cases Average Usage Compute Time “Growing fast” • Successful services needs to grow/scale • Keeping up w/ growth is big IT challenge • Complex lead time for deployment Compute Time “Predictable bursting” • Services with micro seasonality trends • Peaks due to periodic increased demand • IT complexity and wasted capacity Average Usage Elasticity
  13. 13. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ES Service Platform (SP) Elasticity: Our approach Elasticity SP Creation Services • Integrated set of application development tools and services SP Runtime Services • Complete suite of runtime tools (middleware, monitoring) as-a-Service SP Controller • Control services: creation, change, termination, service discovery Mission: Accelerate the creation, evolution and operation of high quality application services through a reusable cloud platform.HP SP
  14. 14. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Elasticity: modules / services “Architecting elasticity in” Business • Feature • Selling point Development • Module templating – Eg. OnCreate, OnDestroy, .. Elasticity
  15. 15. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Resilience “Early customers of [leading cloud provider] found this out the hard way when the service had a short outage. When it returned, many customer’s applications didn’t.” - Forrester Source: Forrester Research, Inc., Best Practices: Infrastructure as a Service, September 2009 Resilience: elevated in importance Less control and visibility of the environment • Network & disk performance variance due to multi-tenancy of cloud Must design, implement, & test for auto-recovery from failure • Assume hardware will fail; assume outages will occur; assume your application will fail
  16. 16. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Resilience: Our approach Resilience Operation Model Infrastructure: SLO dependent • Choose the correct Cloud infrastructure configuration Application: Define behavior as operations • Create • Shutdown • Restart / restore
  17. 17. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Resilience: Our approach Resilience Operation Model Business • Integral part of business: think, describe, test, .. Development • Not an after tought !
  18. 18. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Security: key cloud problems Lowest common denominator Cloud is a shared environment Attackers seek access though weaker, adjacent apps Limited control & knowledge of public cloud infrastructure Hypervisors, guest and host OSs have vulnerabilities Data needs to be encrypted for security & compliance Cloud apps often rely on 3rd party components You don’t have assurance they are secure unless you test Web services are rarely effectively security tested Low control of environment 3rd party components Security
  19. 19. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Security: Our approach Security “Architecting security in” from the beginning Early and continuous • Address all phases of the application lifecycle • Automate application security testing Different tools available for specific customer requirements • HP Fortify – Static testing, mobile testing, penetration testing, .. • HP WebInspect
  20. 20. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Learn more about this topic 1 HP Helion Assessment: http://www8.hp.com/us/en/business- solutions/cloud-assessment/index.html 2 Visit the ES Service Platform Connections website: https://connections.houston.hp.com/groups/es-service-platform 3 Download the Cloud Accelerator Pack www.hp.com/go/acceleratorpack 5 Follow us @hpcloud on Twitter 4 Asses your application for cloud computing: https://www.hp-appstogo.com/at2c
  21. 21. © Copyright 2014 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Thankyou

×