This document discusses lean and agile development approaches using AWS services. It advocates for building minimum viable products (MVPs) quickly through iterative development and validating ideas in production. MVPs should use loosely coupled microservices architectures on AWS for scalability and resilience. Teams should focus on core features and use AWS services to outsource non-differentiating functions. Continuous delivery of infrastructure as code is recommended to deliver features quickly while measuring everything with services like CloudWatch.

1. Lean & Agile
Development Approaches
Markku Lepistö
Principal Technology Evangelist
@markkulepisto

2. IDEA%!%

3. Fail%Fast%
Fail%Cheap%
Fail%Forward%

4. Scale%Success%

5. Validate%Idea%

6. Minimum%Viable%Product%(MVP)%
• Release%quickly%
• Limited%core%features%
• Iterate%in%producFon%
• Business%decisions%based%on%data%
%
“Produc(on*is*truly*the*only*place**
you*can*validate*your*code”*
H%Michael%Nygard,%author%of%‘Release%it!’%

7. ApplicaFon%Architecture%
for%MVP’s%Core%Features%

8. Tightly%Coupled,%Monolithic%(monster)%

9. Decomposed%to%Services%

10. Decomposed%to%Services%

11. Decomposed%to%Services%

12. Define%Your%MVP’s%Building%Blocks%

13. Define%Your%MVP’s%Building%Blocks%
Microservices*Architecture*
Compute%
Object%Store%
Load%Balancer%
SQL%Database%
IdenFty%&%Access%
Data%Warehouse%
ApplicaFon%Lifecycle%
CDN% RecommendaFon%Engine%
Social%Login%SSO%
BI%AnalyFcs%
Web%Server%
Reverse%Proxy%
My%Second%Cool%Feature%My%Cool%Feature%

14. Focus%

15. Focus%on%Your%Core%DifferenFator%

16. Outsource%UndifferenFaFng%Ones%to%Services%
Amazon%EC2%
Amazon%S3%
ElasFc%Load%Balancing%
Amazon%RDS%
AWS%IAM%
Amazon%RedShi]%
AWS%OpsWorks%
Amazon%CloudFront% EasyRec%
HybridAuth%
JasperSo]%
Puma%
Nginx%
My%Second%Cool%Feature%My%Cool%Feature%

17. Amazon%Web%Services%

18. Regions,%Zones%and%Edge%LocaFons%

19. API$
Regions Availability Zones Edge Locations
Storage%
S3 EBS Glacier Storage
Gateway
Foundation
Services$
Networking%
VPC Direct
Connect
ELB Route53
Databases
RDS ElastiCacheDynamo RedShift
Content Delivery
CloudFront
Analytics%
DataPipelineEMR Kinesis
EC2
Compute%
WorkSpaces
AWS$Global$Infrastructure$
Deployment&
Management$
IAM Federation
Identity & AccessMonitoring
CloudWatch
Deployment & Management
BeanStalk Cloud
Formation
OpsWork CloudTrail
AWS$
Global$
Infrastru
cture$
Libraries, SDK’s%
Web Console
Interaction%
Human Interaction%
Support
Command Line
AWS$Global$Infrastructure$
Application
Services$
Application Services%
SES SNS SQS Elastic
Transcoder
CloudSearch SWF AppStream

20. Discover%SW%Components%–%AWS%marketplace%

21. Discover%SW%Components%–%GitHub%

22. Discover%SW%Components%–%NeclixOSS%

23. Services%are%Black%Boxes%Exposed%via%APIs%
My%Cool%Feature%
Iterate,%even%reH
write%internal%
implementaFon%
API%is%stable,%with%few%
changes,%potenFally%
versioning%
API%

24. Loose%Coupling%Enables%ScaleHout%and%Resiliency%
Use%Message%Queues%

25. Loose%Coupling%Enables%ScaleHout%and%Resiliency%
Use%Message%Queues%
Simple%Queue%Service%
(SQS)%

26. Loose%Coupling%Enables%ScaleHout%and%Resiliency%
Use%Idempotent%Interfaces%

27. Loose%Coupling%Enables%ScaleHout%and%Resiliency%
Use%Circuit%Breakers%

28. Loose%Coupling%Enables%ScaleHout%and%Resiliency%
Use%Circuit%Breakers%
Temporarily%bypass%
unresponsive%service.%
Switch%to%degraded%
mode%transacFons%

29. Auto%Scale,%Load%Balance,%Monitor,%HA%Assure%
Each%Service%Separately%

30. Statelessness%Enables%ScaleHout%
Separate%State%and%Data%from%Compute%Instances%
Load%Balanced,%Auto%Scaling%
pool%of%EC2%Workers%
Scalable%Services%for%
State%and%Data%
ElastiCacheDynamoDBS3

31. Amazon%DynamoDB%
Zero%Admin%NoSQL%Service%
Unlimited%Storage%
Provisioned%Throughput%
<10ms%response%Fme%
Durable%on%SSD%

32. CloudHSOA%
S
O
A
• CloudHnaFve%New%ApplicaFons%
• SOA%principles%leveraging%Cloud%services%
• Architect%for%
– AutomaFon%
– Scale%
– Cost%
– Availability%
– Data%
• ApplicaFons%are%%
– AlwaysHon%
– SelfHhealing%
– AnFHfragile%

33. Implemented%by%TwoHPizza%Teams%
• Small,%autonomous%teams%
• Full%responsibility%for%Service%X%
• Decoupled%launch%schedules%
• No%handovers%
• Trust%
%

34. Puing%It%All%Together%into%a%SoluFon%

35. Puing%It%All%Together%into%a%SoluFon%

36. Puing%It%All%Together%into%a%SoluFon%

37. Puing%It%All%Together%into%a%SoluFon%

39. =$
Programmable%Placorm%

40. If%you%can%program%it%
You%can%automate%it%

41. AWS%SDKs%

42. Java%SDK%
…!
res = ec2.runInstances new RunInstancesRequest([!
!imageId: "ami-00754474", !
!keyName: ”MyKeyPair", !
!instanceType: ”m3.medium", !
!securityGroups: [”MySecurityGroup"],!
!minCount: 1,!
!maxCount: 1,!
!userData:!
!"AWSWeb.war".bytes.encodeBase64().toString()!
!])!
…!
!

43. Unified%Command%Line%Interface%
~ $ aws ec2 run-instances
--image-id ami-554ac83c
--min-count 1
--max-count 1
--key-name MyKeyPair
--security-groups MySecurityGroup

45. AMI$AMI$AMI$
YOUR$CODE$
CORE$SERVICES$
3rd$PARTY$
LIBRARIES$
OPERATING$SYSTEM$
YOUR$CODE$
CORE$SERVICES$
3rd$PARTY$
LIBRARIES$
OPERATING$SYSTEM$
YOUR$CODE$
CORE$SERVICES$
3rd$PARTY$
LIBRARIES$
OPERATING$SYSTEM$
PreHbaked%Image% Base%OS%Image%+%OrchestraFon%%

46. 3rd%Party%ConfiguraFon%Mgmt%&%OrchestraFon%Tools%

47. AWS$OpsWorks$ AWS$
CloudFormaHon$
AWS$ElasHc$
Beanstalk$
DevOps$framework$for$
applicaHon$lifecycle$
management$and$
automaHon$
Templates$to$deploy$&$
update$infrastructure$
as$code$
Automated%resource$
management$–$web$
apps$made$easy$
DIY$/$$
On$Demand$
DIY,$on$demand$
resources:$EC2,$S3,$
custom$AMI’s,$etc.$
ControlConvenience
AWS%Services%for%ApplicaFon%Lifecycle%Management%

48. CloudFormaFon%
Template%

50. SOURCE CODE
REPOSITORY
DNS
CONTINUOUS
INTEGRATION SERVER
PROJECT
MANAGEMENT SERVER
BUILDS
DATABASE
STORAGE

51. CLOUDFORMATION
TEMPLATE
BUILD +
DB SNAPSHOT

52. Application Versions + Infrastructure Versions
ApplicaFon%
Your%Code%
Infrastructure%
To%Run%and%Support%Your%Code%

53. Deliver%ConFnuously%
• Infrastructure%as%Code%
– Everything%now%programmable%
– App%=%code%+%infrastructure%descripFon%
– In%version%control%
• Full%test%automaFon%
• Frequent%small%risk%&%size%builds%
• Successful%builds%to%producFon%

54. test%
ConFnuous%IntegraFon%
code% build%plan%
Agile%Development%
Source%hop://www.collab.net%
deploy% operate%
collaboraFon%
value%
DevOps%
release%
ConFnuous%Delivery%

55. Go%Global%–%in%Minutes%
• Launch%in%a%test%market%
• A/B%TesFng%
• Collect%all%logs%
• AnalyFcs%!%Insights%!%Iterate%
%
Once%you%hit%the%sweet%spot%–%
• Replicate%the%applicaFon%to%all%regions%

57. Measure%&%Log%Everything%
Amazon%CloudWatch%

58. COLLECT%|%%STORE%%|%ANALYZE%|%SHARE%
Import%Export%
Glacier%
S3% EC2%
Redshi]%DynamoDB%%
EMR%
Data%Pipeline%
S3%Direct%Connect%
Leverage%AWS%Big%Data%Services%
CloudFront%
Kinesis%

59. Keep%IteraFng%

60. Keep%InnovaFng%

61. «%Want%to%increase%innovaFon?%
Lower$the$cost$of$failure$»%
$
Joi%Ito%
MIT%MediaLabs%

62. Fail%Fast%&%Cheap%H%Scale%Success%
Experiment$
OXen$
$
Fail$quickly$at$a$
low$cost$
$
More$
InnovaHon$
Experiment$
Infrequently$
$
Failure$is$
expensive$
$
Less$InnovaHon$
ONZPREMISE$

63. SHOW$ME$ALREADY$!$

64. DEMOS%
1. AWS%ElasFc%Beanstalk%%% %Deploy%to%ProducFon%using%Git%
2. AWS%CloudFormaFon% %% %Upgrade%a%Deployed%Template%%
3. AWS%SDK%for%Ruby% % %Control%EC2,%S3%&%RDS%

65. Thank%you%
Markku%Lepistö%–%Principal%Technology%Evangelist%
@markkulepisto%