Cloud presentation given at Amazon Startup Bootcamp sept. 2011

1. Cloud
Two examples
Søren Peter Nielsen
spn@itst.dk
Chief Architect
Danish National IT and Telecom Agency

2. Why public cloud?
Kilde: Microsoft

3. Read more:
”Cloud Calculator”
Highlighting the potential digitaliser.dk/resource/601236
Compare On Premise cost with Cloud
A 60% total cost reduction
over a 5 year period!

4. Hands on experience – Two
examples with NITA in the cloud
• Digitalisér.dk
• Social sharing and
knowledgeplatform
• EasyTrade
• eInvoicing infrastructure and
self service
Read more:
”Migration of Nemhandel to a commercial
Cloud Computing Infrastructure”
EasyTrade in the cloud
digitaliser.dk/resource/567373
=> more than 50% cost reduction

5. What is Digitalisér.dk
 Collaboration platform and
resource library for IT enabling
Denmark
 All content is user
generated, 12000+ ressources
 NITA is ”just” making the
platform available
 4800+ registrered
users, ongoing new content
creation

6. Why cloud?
Eat our own dog food
NITA is promoting cloud
Good opportunity to get hands-on
Expecting to save money, get more
flexibility (and scalability)
We have many systems that potentially
can live in the cloud – need a frontrunner

7. We did a risk
analysis
 Verden går ikke under, hvis der sker
Digitalisér.dk et eller andet
 Vi har ingen vigtige personoplysninger
(udover e-mail)
 Der er ikke noget sensitivt indhold, og der bør
heller ikke være det (vi tager ikke ansvar for
det)
 Vi foretager fysiske backups hyppigt, så
datatabet vil være generende men ufarligt
 Utilgængelighed er et irritationsmoment – men
ikke kritisk
 Men vigtigst: sandsynligheden er lav
 Pointen er, at man skal vurdere sin
leverandører på samme vilkår med
udgangspunkt i applikationen, hvadenten det
er cloud eller ej

8. Setup before migration
• Access to all environments through hosting
provider
Applikationsteam
Driftsleverandør
Udvikling Test Staging Drift

9. Setup after the migration
• Operations and maintenance split on two
suppliers – each with their own AWS
account
Applikationsteam
Driftsleverandør
Udvikling Test Staging Drift
Amazon Web Services

10. Digitaliser.dk - conclusions
• Better flexibility and saving on development
and test environment
• Savings on the production environment
• Quickly found out we needed Gold support
(+20% on the AWS cost)
• Additional savings possible with reserved
instances

11. EasyTrade
• NemHandel
– Invoicing as easy as sending an email
• Infrastructure
– Standards, reference
implementations, adressing, gateways,
• App
– eInvoicing form

12. Why consider IaaS for our
eInvoicing service?
• Fluctuating and rising traffic volumes
• Existing environment unstable due
to high peaks
• Flexibility regarding dev and test
environments
• Lower ongoing operational cost
• Support the NITA's cloud initiative with a
practical case
• Experience building

13. 300000
EasyTrade traffic
250000
200000
150000
100000
50000
0

14. 1000
2000
3000
4000
5000
6000
7000
0
2010-03-…
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Users per day
2010-03-…
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2010-04-…
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2010-04-…

15. 600
Users per hour
500
400
300
200
100
0

16. Cloud setup
Auto Scale Trigger:
NemHandel Scale-up if CPUUtilization > 60
Scale-down if CPUUtilization < 20
Admin server
RASP sender server
Load
Balancer
Firewall Firewall Firewall Users
https://dokumentblanket.nemhandel.gov.dk/
DokumentBlanket
Cluster server
Database lag Service lag Præsentations lag

17. Users per hour
600
500
400
300
200
100
0

18. Conclusions
• Reasonable business case
– ROI in 26 months
– might have been accomplished with traditional
supplier as well
• Migrations and refactoring apps is expensive
• Need somebody to handle monitoring and
operations
• Don’t expect to do anything w/o an AWS
support agreement
• Cheap & flexible for development, test and
staging

19. The cost to be a first mover
• 3. party not used to cloud infrastructure
• Maturity of technologies
– missing and wrong documentation
• AWS is cheap, but it is new technology
– spent many hours getting elastic load balancing
right

20. Additional Contact Info
• Twitter.com/sorenp
• Linkedin.com/in/sorenp
• Soren.peter.nielsen@gmail.com