Migrating Orange to AWS
- 1. Orange's move to the cloud Why and How... 6th June 2013
- 2. Orange's move to the cloud Why?
- 3. Problem Credit: nicholsoncartoons.com.au • Can write software, but can't deliver it as no infrastructure available
- 4. Downtime
- 5. Options 1. Do nothing 2. Expand fixed infrastructure 3. Move to the cloud
- 6. Pre-cloud costs • Costing around £90k per month • £3m over 3 years
- 7. Option 2 - Expand infrastructure • £1m upfront cost • £3.5m over 3 years
- 8. Option 3 - Move to the cloud • £100k upfront expense to reserve instances • £1.8m over 3 years
- 9. Why cheaper? • Pay as you go pricing o Ability to scale upwards in real time to meet peak demand o Ability to scale downwards in real-time in quiet periods to save on costs
- 10. Which cloud? • Rackspace slightly cheaper • Rackspace has better SLAs • AWS APIs, SDKs and documentation • AWS products and features • AWS has an EU data center
- 11. Other considerations • Integrating cloud servers into internal EE systems • Limited control over hardware and low-level configuration • Very limited SLAs from AWS • Security concerns, Privacy concerns • Resource contention / noisy neighbours
- 12. Technical design • Anti-Fragile (rather than robust) • Multiple data centers • Multiple environments • Driven by configuration (no manual changes) • Automation • Central Control
- 13. Orange's move to the cloud How?
- 15. AWS Technologies • EC2 • S3 • CloudFormation • CloudWatch • SES • Route 53 • IAM • RDS • CloudFront • VPC • ElastiCache • Redshift • Direct Connect • CloudSearch • Elastic Transcoder • Elastic Beanstalk • OpsWorks • SNS
- 16. Configuration Management • Puppet • Chef • Salt Stack • OpsWorks
- 17. Databases • Multi-AZ • Multi-Master • Distributed Writes
- 18. Testing
- 19. Tips • Horizontal scalability • Design for testing • Prioritise Non-functionals • Clusters require odd instance numbers • Implement IAM security policies • Lack of performance costs money
- 20. Technical / Business Benefits • Faster time to market • Greater system flexibility • Rapid prototyping • New business opportunities
- 21. Orange's move to the cloud Questions?
Editor's Notes
- #10: Ability to scale upwards in real time to meet peak demand Ability to scale downwards in real-time in quiet periods to save on costs