We are a lean team consisting of developers, lead architects, business analysts, and a project manager. To scale our applications and optimize costs, we need to reduce the amount of undifferentiated heavy lifting (e.g., patching, server management) from our projects. We have identified AWS serverless services that we will use. However, we need approval from a security and cost perspective. We need to build a business case to justify this paradigm shift for our entire technology organization. In this session, we learn to migrate existing applications and build a strategy and financial model to lay the foundation to build everything in a truly serverless way on AWS.

2. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
From Monolithic to Modern Apps: Best Practices
Paras Bhuva
Sr. Solutions Architect
Amazon Web Services
S e s s i o n I D : S R V 3 2 2 - / S R V 3 2 2 - R 1 / S R V 3 2 2 - R 2
Tom Laszewski
Enterprise Technologist
Amazon Web Services
Chris Ingraham
Vice President of IT
Fender Musical Instruments

3. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Learn more at sessions and breakouts
Thursday, November 29
Leadership Session: Using DevOps, Microservices, and Serverless to
Accelerate Innovation (SRV325)
12:15 – 1:15 PM | Venetian Theatre (Level 2)
Wednesday
From Monolithic to Modern Apps: Best Practices (SRV322-R1)
6:15 – 7:15 PM | Aria East, Plaza Level, Orovada 2
Thursday
From Monolithic to Modern Apps: Best Practices (SRV322-R2)
4:00 – 5:00 PM | MGM, Level 1, Grand Ballroom 119

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Agenda
The Serverless Advantage
Trends in the Enterprise
Real Time Scenario
Voice of the Customer – Fender
Modern Application Checklist
Q&A

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THE SERVERLESS OPERATIONAL MODEL
No provisioning,
no management
Pay for value
Automatic
scaling
Highly available
and secure

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AWS SERVERLESS ADVANTAGE
Agility Total Cost efficiency
“The size of our team is half of what is
normally needed to build and operate a
site of this scale.” – Bustle
“Using AWS Lambda, we’ve increased
cost efficiency by a factor of two.” –
FINRA
Elasticity
“[We have] experienced near-zero
downtime and near-zero performance
degradation while serving 200-300
million IPO requests per month” -
Financial Engines
“What took us just a few days to build
using a serverless solution based on AWS
Lambda would have taken us six months
to build from scratch.”- Edmunds

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FOCUS ON DIFFERENTIATORS
Installing, configuring, and managing
my compute infrastructure is critical to
achieving my goals.
Having a standardized, flexible, and on-
demand compute environment is critical
to achieving my goals.

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AWS SERVERLESS PORTFOLIO
APPLICATION PRIMITIVES – COMPUTE AND DATASTORES
AWS
Lambda
AWS
Fargate
Amazon
API Gateway
Amazon
SNS
Amazon
MQ
Amazon
SQS
AWS
Step Functions
APPLICATION INTEGRATION
DEVELOPER TOOLS
SECURITY AND ADMINISTRATION
Amazon Aurora
Serverless
Amazon
S3
Amazon
DynamoDB
AWS
IAM
Amazon
Cognito
Amazon
Inspector
Amazon
VPC
Amazon
GuardDuty
AWS
CloudFormation
AWS
Cloud9
AWS
CloudTrail
Amazon
CloudWatch
AWS
X-Ray
AWS
CodePipeline
AWS
Config
AWS
SSO
AWS
Shield
AWS
WAF
Amazon
Kinesis
AWS Serverless
Application
Repository
AWS
Appsync

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• Where to start?
• What to break out?
• Dependencies?
• Works as expected?
• Users happy?
• Does it scale?
• Does it perform?
• Works as expected?
• Users happy?
• How to optimize?
Does it perform?
• How to automate?
“Lift and Forget” to Serverless
From
On-Premise Monolith
Via
Containerized Services
To
Functions & Cloud Services

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Common use cases
Web
Applications
• Static websites
• Complex web
apps
• Packages for
Flask and
Express
Data
Processing
• Real time
• MapReduce
• Batch
Chatbots
• Powering
chatbot logic
Backends
• Apps & services
• Mobile
• IoT
</></>
Amazon
Alexa
• Powering voice-
enabled apps
• Alexa Skills Kit
Autonomous
IT
• Policy engines
• Extending AWS
services
• Infrastructure
management

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Enterprises are achieving massive scale with Lambda
• Thomson Reuters processes 4,000 requests per second
• FINRA processes half a trillion validations of stock trades daily
• Hearst reduced the time to ingest and process data for its analytics
pipeline by 97%
• Vevo can handle spikes of 80x normal traffic
• Expedia triggers 1.2 billion Lambda requests each month

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How Capital One Achieved Flow with Serverless

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Team Challenge
Typical team in an enterprise consisting of a developers, architects, business analyst and a PM
• Team currently manages a portfolio of customer facing web applications
• New project to survey customers
• Team is already burdened with maintaining current “Monolithic” apps and related infrastructure
• Team meets and decides to reduce undifferentiated heavy lifting (patching servers, scaling etc…)
• Team comes up with idea to build their new app using AWS Serverless Services
• However, they need to justify their choice to the finance and security teams
Let’s dive into their new project…

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Project requirements
• Polling Web application, users across the US and Canada
• Poll will run over 2 days, expected traffic ~10M users; need to design for 5k concurrency
• Users will be sent a link to the survey containing a unique token
• Cost control, High Availability and Resilience is critical
• Poll may be run multiple times a year. Will be provided to other enterprises as a SaaS offering
• Page load times are critical to reduce the risk of users dropping out
• Most users will use their mobile device, so application needs a responsive design
• Team has 2 weeks to design, build, test and deploy to production

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Capabilities of a modern application
Secure Resilient Elastic
Modular Automated Interoperable

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Think big, but Act Small
• Create small, cross-functional teams that are focused on delivering a specific service
• Make delivery of these services inclusive of all the elements needed to build and deploy these services to
the cloud
• Setup of cloud-based development environment
• Setup of continuous integration and testing environments
• Automated configuration and deployment to test environment
• Initial focus is on thin, less robust versions of these elements
• Introduce tests that validate some minimal notion of SLA’s

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Inspect and Adapt
• Focus on capturing and understanding the fundamental moving parts of a service
• Identify concepts that are horizontal to all services
• Set the automation and deployment bar high
• Establish service ownership culture on day one
• Continually challenge the service decomposition model
• Are these the right services and are they small and autonomous?

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Guiding Principles
• Don’t boil the ocean
• Centralized monitoring and management is fundamental
• Automation is not a phase
• Continually look for horizontal concepts
• Stay true to the core SOA principles
• Autonomy is fundamental to long-term success
• Decomposition is more than functional
• Agility is a fundamental goal

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Guiding Principles
• Design for failure and nothing fails
• Loose coupling sets you free
• Implement “Elasticity”
• Build Security in every layer
• Don’t fear constraints
• Leverage different storage options

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Final Production Architecture
Browser
Amazon S3Amazon CloudFront
• Bucket Policies
• ACLs
• OAI
• Geo-Restriction
• Signed Cookies
• Signed URLs
• DDOS
Amazon
Route 53
AWS
Lambda
Amazon
DynamoDB
Streams
IAM IAM
Aggregation
AuthZ
Amazon
DynamoDB
Amazon API
Gateway
• Throttling
• Caching
• Usage Plans
AWS
Lambda
IAM IAM
Amazon Cognito

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28. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.

29. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Leo Fender, A Creative Builder
B U I L D I N G B L O C K S B U I L D - M E A S U R E - L E A R N S C A L E & S I M P L I C I T Y

30. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
1 9 5 1
Te l e c a s t e r
1 9 5 4
S t r a t o c a s t e r
1 9 5 1
P r e c i s i o n
b a s s

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Fast Forward 70 Years

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B2B eCommerce
Physical Servers
in Boston
Physical Servers
in Scottsdale
Virtual Servers
in Scottsdale

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Monolith Architecture
Browser
Juniper
Firewall
F5 Load
Balancer
Web Servers (Apache)
SQL Server
NetApp
(SAN)
Solr Server Master
Solr Server Slave
ATG

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FMIC Direct

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Business Case
Cost
Savings
Employee
Productivity
Operational
Improvements
Business
Agility

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Data loads
Amazon
S3
topic
Lambda
function
Amazon
DynamoDB
Amazon
S3
topic
Lambda
function
Amazon
DynamoDB
Amazon
EC2
Amazon
S3
topic
Lambda
function
Redis
Amazon
CloudFront

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Architecture
users Classic Load
Balancer
Amazon
ElastiCache
Postgre SQL
instance
Amazon
SES
Amazon
S3
Amazon
CloudFront
Order
Creation
Invoices
Online
Payments
Warranty
Claims
Finance
Details
API
Gateway
AWS Direct
Connect
Amazon
CloudFront
Amazon
DynamoDB

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Modern Fender Dealer Portal

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Results
Hardware
purchasing and
maintenance
Eliminated
“Really starting to enjoy the new
Fender Portal, some of your
competitors have similar sites but no
one else has the ease of use, full
product details and accuracy like the
Fender site does.”
License
maintenance 100%

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Lessons Learned

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Next Steps

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Alexa Show demo

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T H A N K Y O U

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46. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Modern application checklist
 Enable security and compliance across the entire app lifecycle
 Structure apps as collections of microservices
 Build with serverless technologies as much as possible
 Use code to model applications and infrastructure
 Rapidly release high-quality features with CI/CD
 Gain insights into application behavior with monitoring

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48. Thank you!
© 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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