Breaking up the monolith into modern applications

AWS Summit, Milan, March 12th, 2019

Tips for decomposing your apps into serverless microservices.

Transcript

1. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Breaking up the monolith
   into modern applications
   Danilo Poccia
   Principal Evangelist, Serverless
   AWS
   @danilop
   

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2. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Best practices for modern application development
   • Enable experimentation
   • Componentize applications
   • Update applications and infrastructure quickly
   • Model and provision application resources
   • Simplify infrastructure management
   • Improve application performance
   • Secure the entire application lifecycle
   

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3. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Best practices for modern application development
   • Enable experimentation by creating a culture of ownership
   • Componentize applications using microservices
   • Update applications and infrastructure quickly by automating the release pipeline
   • Model and provision application resources using infrastructure as code
   • Simplify infrastructure management with serverless technologies
   • Improve application performance by increasing observability
   • Secure the entire application lifecycle by automating security
   

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4. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Best practices for modern application development
   • Enable experimentation by creating a culture of ownership
   • Componentize applications using microservices
   • Update applications and infrastructure quickly by automating the release pipeline
   • Model and provision application resources using infrastructure as code
   • Simplify infrastructure management with serverless technologies
   • Improve application performance by increasing observability
   • Secure the entire application lifecycle by automating security
   

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5. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Microservices
   

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6. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   How Amazon SQS works
   Front End
   Back End
   Metadata
   Amazon
   DynamoDB
   Load
   Manager
   

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7. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   Serverless
   

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8. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   AWS operational responsibility models
   On-Premises Cloud
   Less More
   Compute Virtual Machine
   EC2 Elastic Beanstalk AWS Lambda
   Fargate
   Databases MySQL MySQL on EC2
   RDS MySQL RDS Aurora Aurora Serverless DynamoDB
   Storage Storage
   S3
   Messaging ESBs
   Amazon MQ Kinesis SQS / SNS
   Analytics
   Hadoop Hadoop on EC2 EMR Elasticsearch Service Athena
   

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9. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
   S U M M I T
   

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10. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    How Amazon MQ works
    Amazon
    API Gateway
    DynamoDB
    Control Plane
    Data Plane
    AWS Lambda
    

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11. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Some AWS services that use containers
    …more…
    

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12. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Databases
    

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13. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Databases in modern applications
    RDBMS
    (RDS)
    NoSQL
    (DynamoDB)
    

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14. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Relational or not?
    NOT!
    

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15. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Databases in Modern Applications
    RDBMS
    (RDS)
    NoSQL
    (DynamoDB)
    Amazon Quantum
    Ledger Database
    

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16. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Amazon Quantum Ledger Database
    Summary
    Journal
    Transactions
    • Transactions are SQL-ish
    • Query the Summary with SQL
    • “Records” are ION (JSON superset) documents
    • Journal is a cryptographically chained immutable ledger
    • Journal is also a database table
    • It’s serverless!
    

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17. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Integration patterns
    

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18. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Integration options from AWS
    Amazon
    API Gateway
    Queues
    Simple
    Fully-managed
    Any volume
    Amazon
    SQS
    Pub/sub
    Simple
    Fully-managed
    Flexible
    Amazon
    SNS
    Orchestration
    Powerful
    Fully-managed
    Low code
    AWS
    Step Functions
    Connect
    Efficient
    Fully-managed
    Real-time
    Client-to-Service Messaging Orchestration
    

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19. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    MICROSERVICE
    API
    API
    MICROSERVICE
    MICROSERVICE
    EVENT
    API
    MICROSERVICE
    EVENT
    API
    MICROSERVICE
    APPLICATION
    Mobile client
    Client
    IoT
    PERSISTENCE PERSISTENCE
    

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20. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Keep orchestration out of code
    Track status of data
    and execution
    Remove
    redundant code
    

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21. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Step Functions: Integrations
    Simplify building workloads such as order processing,
    report generation, and data analysis
    Write and maintain less code; add services in minutes
    More service integrations:
    AWS Step
    Functions
    Amazon Simple
    Notification
    Service
    Amazon Simple
    Queue Service
    Amazon
    SageMaker
    AWS Glue AWS Batch Amazon Elastic
    Container Service
    AWS Fargate
    

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22. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Simpler integration, less code
    With serverless polling With direct service integration
    Start
    End
    AWS
    Lambda
    functions
    Start
    End
    No
    Lambda
    functions
    

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23. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    

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24. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Serverless applications
    Services (anything)
    Changes in
    data state
    Requests to
    endpoints
    Changes in
    resource state
    Event source Function
    Node.js
    Python
    Java
    C#
    Go
    Ruby
    Runtime API
    

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25. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Anatomy of a Lambda function
    Handler() function
    Function to be executed
    upon invocation
    Event object
    Data sent during Lambda
    function Invocation
    Context object
    Methods available to
    interact with runtime
    information (request ID,
    log group, more)
    import json
    def lambda_handler(event, context):
    # TODO implement
    return {
    'statusCode': 200,
    'body': json.dumps('Hello World!')
    }
    

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26. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Lambda Layers
    Lets functions easily share code: Upload layer
    once, reference within any function
    Promote separation of responsibilities, lets
    developers iterate faster on writing business logic
    Built in support for secure sharing by ecosystem
    

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27. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Using Lambda Layers
    • Put common components in a ZIP file and
    upload it as a Lambda Layer
    • Layers are immutable and can be versioned
    to manage updates
    • When a version is deleted or permissions to
    use it are revoked, functions that used it
    previously will continue to work, but you
    won’t be able to create new ones
    • You can reference up to five layers, one of
    which can optionally be a custom runtime
    Lambda
    Layers
    arn:aws:lambda:region:accountId:layer:shared-lib
    Lambda
    Layers
    arn:aws:lambda:region:accountId:layer:shared-lib:2
    Lambda
    Layers
    arn:aws:lambda:region:accountId:layer:shared-lib:3
    

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28. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Lambda Runtime API
    Bring any Linux compatible language runtime
    Powered by new Runtime API - Codifies the
    runtime calling conventions and integration points
    At launch, custom runtimes powering Ruby
    support in AWS Lambda, more runtimes from
    partners (like Erlang)
    Custom runtimes distributed as “layers”
    Rule
    Stack
    

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29. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Runtime Bootstrap
    • The bootstrap executable act as a bridge
    between the Runtime HTTP API and the
    Function to be executed
    • Bootstrap needs to manage response/error
    handling, context creation and function
    execution
    • Information on the interface endpoint and the
    function handler are shared as environment
    variables
    /runtime API
    /invocation/next
    /init/error /ID/error
    /invocation/ID/response
    /invocation/ID/error
    bootstrap
    Process events/headers
    Clean up
    Initialize and Invoke function
    Response/Error handling
    Lambda
    Function
    

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30. Build PCI and HIPAA compliant serverless applications!
    Serverless platform services that can be used in both:
    

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31. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Start with a framework
    AWS
    Chalice
    AWS Amplify
    AWS
    SAM
    AWS: Third-party:
    Serverless
    Framework
    

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32. Meet
    SAM!
    

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33. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS Serverless Application Model (SAM)
    AWS CloudFormation extension optimized for
    serverless
    Special serverless resource types: Functions, APIs,
    SimpleTables, Layers, and Applications
    Supports anything AWS CloudFormation supports
    Open specification (Apache 2.0)
    https://aws.amazon.com/serverless/sam
    

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34. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    SAM template
    AWSTemplateFormatVersion: '2010-09-09’
    Transform: AWS::Serverless-2016-10-31
    Resources:
    GetFunction:
    Type: AWS::Serverless::Function
    Properties:
    Handler: index.get
    Runtime: nodejs8.10
    CodeUri: src/
    Policies:
    - DynamoDBReadPolicy:
    TableName: !Ref MyTable
    Events:
    GetResource:
    Type: Api
    Properties:
    Path: /resource/{resourceId}
    Method: get
    MyTable:
    Type: AWS::Serverless::SimpleTable
    Just 20 lines to create:
    • Lambda function
    • IAM role
    • API Gateway
    • DynamoDB table
    O
    pen
    Source
    

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35. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS SAM Command Line Interface (AWS SAM CLI)
    CLI tool for local development, debugging, testing,
    deploying, and monitoring of serverless applications
    Supports API Gateway “proxy-style” and Lambda service API
    testing
    Response object and function logs available on your local
    machine
    Uses open source docker-lambda images to mimic
    Lambda’s execution environment such as timeout, memory
    limits, runtimes
    Can tail production logs from CloudWatch logs
    Can help you build in native dependencies
    https://aws.amazon.com/serverless/sam
    

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36. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    SAM CLI
    sam init --name my-function --runtime python
    cd my-function/
    sam build
    sam package --s3-bucket my-packages-bucket \
    --output-template-file packaged.yaml
    sam deploy --template-file packaged.yaml \
    --stack-name my-function-prod
    sam publish # To the AWS Serverless Application Repository
    

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37. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    

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38. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    With the AWS Serverless Application Repository:
    Developers can…
    • Discover and deploy ready-made apps and
    code samples
    • Combine applications in the app repository
    with their own via Nested Applications
    • Customize open-source apps to get started
    quickly
    • Share apps privately or publish apps
    for public use
    

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39. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    TweetSource:
    Type: AWS::Serverless::Application
    Properties:
    Location:
    ApplicationId: arn:aws:serverlessrepo:...
    SemanticVersion: 2.0.0
    Parameters:
    TweetProcessorFunctionName: !Ref MyFunction
    SearchText: '#serverless -filter:nativeretweets'
    Nested apps to simplify solving recurring problems
    Standard
    Component
    Custom
    Business
    Logic
    Polling schedule
    (CloudWatch
    Events rule)
    trigger
    TwitterProcessor
    SearchCheckpoint
    TwitterSearchPoller
    Twitter
    Search API
    

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40. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS SAM Template Capabilities
    • Can mix in other non-SAM CloudFormation
    resources in the same template
    • i.e. Amazon S3, Amazon Kinesis, AWS Step Functions
    • Supports use of Parameters, Mappings,
    Outputs, etc
    • Supports Intrinsic Functions
    • Can use ImportValue
    (exceptions for RestApiId, Policies, StageName attributes)
    • YAML or JSON
    

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41. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS Lambda Environment Variables
    • Key-value pairs that you can dynamically pass to
    your function
    • Available via standard environment variable APIs
    such as process.env for Node.js or os.environ for
    Python
    • Can optionally be encrypted via AWS Key
    Management Service (KMS)
    • Allows you to specify in IAM what roles have access to
    the keys to decrypt the information
    • Useful for creating environments per stage (i.e.
    dev, testing, production)
    

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42. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Amazon API Gateway Stage Variables
    Stage variables act like environment variables
    • Use stage variables to store configuration values
    • Stage variables are available in the $context object
    • Values are accessible from most fields in API
    Gateway
    • Lambda function ARN
    • HTTP endpoint
    • Custom authorizer function name
    • Parameter mappings
    

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43. AWS Lambda and Amazon API Gateway Variables + SAM
    Parameters:
    MyEnvironment:
    Type: String
    Default: testing
    AllowedValues:
    - test
    - staging
    - prod
    Description: Environment of this stack of
    resources
    Mappings:
    SpecialFeature1:
    test:
    status: on
    staging:
    status: on
    prod:
    status: off
    #Lambda
    MyFunction:
    Type: 'AWS::Serverless::Function'
    Properties:
    …
    Environment:
    Variables:
    ENVIRONMENT: !Ref: MyEnvironment
    Spec_Feature1: !FindInMap [SpecialFeature1,
    !Ref MyEnvironment, status]
    …
    #API Gateway
    MyApiGatewayApi:
    Type: AWS::Serverless::Api
    Properties:
    …
    Variables:
    ENVIRONMENT: !Ref: MyEnvironment
    

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44. Parameters:
    MyEnvironment:
    Type: String
    Default: testing
    AllowedValues:
    - testing
    - staging
    - prod
    Description: Environment of this stack of
    resources
    Mappings:
    SpecialFeature1:
    testing:
    status: on
    staging:
    status: on
    prod:
    status: off
    #Lambda
    MyFunction:
    Type: 'AWS::Serverless::Function'
    Properties:
    …
    Environment:
    Variables:
    ENVIRONMENT: !Ref: MyEnvironment
    Spec_Feature1: !FindInMap [SpecialFeature1,
    !Ref MyEnvironment, status]
    …
    #API Gateway
    MyApiGatewayApi:
    Type: AWS::Serverless::Api
    Properties:
    …
    Variables:
    ENVIRONMENT: !Ref: MyEnvironment
    AWS Lambda and Amazon API Gateway Variables + SAM
    

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45. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    MyLambdaFunction:
    Type: AWS::Serverless::Function
    Properties:
    Handler: index.handler
    Runtime: nodejs6.10
    AutoPublishAlias: !Ref ENVIRONMENT
    DeploymentPreference:
    Type: Linear10PercentEvery10Minutes
    Alarms:
    # A list of alarms that you want to monitor
    - !Ref AliasErrorMetricGreaterThanZeroAlarm
    - !Ref LatestVersionErrorMetricGreaterThanZeroAlarm
    Hooks:
    # Validation Lambda functions that are run before & after traffic shifting
    PreTraffic: !Ref PreTrafficLambdaFunction
    PostTraffic: !Ref PostTrafficLambdaFunction
    AWS SAM + Safe Deployments
    

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46. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS Lambda Alias Traffic Shifting & AWS SAM
    AutoPublishAlias
    By adding this property and specifying an
    alias name, AWS SAM will do the
    following:
    • Detect when new code is being
    deployed based on changes to the
    Lambda function's Amazon S3 URI.
    • Create and publish an updated version
    of that function with the latest code.
    • Create an alias with a name you
    provide (unless an alias already exists)
    and points to the updated version of
    the Lambda function.
    Deployment Preference Type
    Canary10Percent30Minutes
    Canary10Percent5Minutes
    Canary10Percent10Minutes
    Canary10Percent15Minutes
    Linear10PercentEvery10Minutes
    Linear10PercentEvery1Minute
    Linear10PercentEvery2Minutes
    Linear10PercentEvery3Minutes
    AllAtOnce
    In SAM:
    

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47. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Alarms: # A list of alarms that you want to monitor
    - !Ref AliasErrorMetricGreaterThanZeroAlarm
    - !Ref LatestVersionErrorMetricGreaterThanZeroAlarm
    Hooks: # Validation Lambda functions that are run before & after
    traffic shifting
    PreTraffic: !Ref PreTrafficLambdaFunction
    PostTraffic: !Ref PostTrafficLambdaFunction
    AWS Lambda Alias Traffic Shifting & AWS SAM
    Note: You can specify a maximum of 10
    alarms
    In SAM:
    

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48. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Globals:
    Function:
    Runtime: nodejs6.10
    CodeUri: s3://code-artifacts/pet_app1234.zip
    MemorySize: 1024
    Timeout: 30
    AutoPublishAlias: !Ref ENVIRONMENT
    getDogsFunction:
    Type: AWS::Serverless::Function
    Properties:
    Handler: getdogs.handler
    Events:
    GetDogs:
    Type: Api
    Properties:
    Path: /Dogs
    Method: ANY
    getCatsFunction:
    Type: AWS::Serverless::Function
    Properties:
    Handler: getCats.handler
    Events:
    GetCats:
    Type: Api
    Properties:
    Path: /Cats
    Method: ANY
    getBirdsFunction:
    Type: AWS::Serverless::Function
    Properties:
    Handler: getBirds.handler
    Timeout: 15
    Events:
    GetBirds:
    Type: Api
    Properties:
    Path: /Birds
    Method: ANY
    AWS SAM Globals
    

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49. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Lambda permissions model
    Fine grained security controls for both
    execution and invocation:
    Execution policies:
    • Define what AWS resources/API calls can this
    function access via IAM
    • Used in streaming invocations
    • E.g. “Lambda function A can read from
    DynamoDB table users”
    Function policies:
    • Used for sync and async invocations
    • E.g. “Actions on bucket X can invoke Lambda
    function Z”
    • Resource policies allow for cross account
    configst access
    

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50. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS SAM Policy Templates
    MyQueueFunction:
    Type: AWS::Serverless::Function
    Properties:
    ...
    Policies:
    # Gives permissions to poll an SQS Queue
    - SQSPollerPolicy:
    queueName: !Ref MyQueue
    ...
    MyQueue:
    Type: AWS::SQS::Queue
    ...
    

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51. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    SAM Policy Templates
    45+ predefined
    policies
    All found here:
    https://bit.ly/2xWycnj
    

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52. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    Best
    Practices
    

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53. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS SAM Best Practices
    • Use Parameters and Mappings when possible
    to build dynamic templates based on user
    inputs and pseudo parameters such as
    AWS::Region
    • Use the Globals section to simplify templates
    • Use Export & ImportValue to share resource
    information across stacks
    • Build out multiple environments, such as for
    Development, Test, Production and even DR
    using the same template, even across
    accounts
    SAM Template
    Source
    Control
    Dev
    Test
    Prod
    

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54. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    S U M M I T
    AWS Cloud Development Kit (CDK)
    https://awslabs.github.io/aws-cdk
    AWS CDK Toolkit
    +
    AWS Construct Library
    +
    @aws-cdk/
    aws-serverless
    D
    eveloper
    Preview
    

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55. S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    

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56. Shaping new habits
    one nudge at a time
    How we built our business on AWS, without servers
    digitalattitude.com
    

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57. Who am I?
    Serverless Italy Meetup
    Simone Lusenti
    CTO @ Digital Attitude
    twitter.com/Lanzone31
    

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58. Our job at Digital Attitude
    • Change management
    • Help people inside organizations
    shape new technology-related
    habits…
    • …to improve how new technologies
    are used
    

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59. Meet HI!, our virtual coach
    • Desktop app that intercepts specific user
    actions
    • Provides immediate contextual feedback
    or guidance in response
    

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60. HI!, Building Habits
    AWS Cloud
    Region
    Client Client
    Client
    Client
    Client
    

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61. HI! Infrastructure / as Code
    Infrastructure-as-Code
    1. No need to access the AWS Console
    2. Define infrastructure with JavaScript (or .NET, Java)
    AWS Cloud Development Toolkit (https://github.com/awslabs/aws-cdk)
    3. Easy replicability to other regions/accounts
    

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62. HI! Infrastructure / Serverless benefits
    Pay per request, no idle pay:
    1. Free and exact clones of the production accounts
    2. Developers can perform integration testing before going to production
    3. Keep stand-by replica accounts (e.g.: for Disaster Recovery)
    

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63. HI! Infrastructure / Serverless benefits
    No* capacity planning:
    1. 0-clicks autoscaling of the whole infrastructure (storage and computing)
    2. From 0 to 10.000 in a day with no effort
    3. Thousands of interactions every day at 9AM
    

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64. HI! Infrastructure / Serverless benefits
    Event-driven model:
    1. Response time stable to <200ms under any load
    2. Real-time feedback microservice is fully isolated from administrative
    services, reporting, and analytics
    3. Built-in fault tolerance
    

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65. HI! Infrastructure / Serverless benefits
    Business Continuity & Disaster Recovery:
    1. Amazon S3 Cross-region Replication
    2. Amazon DynamoDB Point-in-time Recovery
    3. Free stand-by replicas
    BC & DR metrics:
    1. RPO: information that is lost in case of disaster: 1 second
    2. RTO: time to fully restore operation: < 1 hour
    

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66. HI! Infrastructure / Serverless benefits
    Reliable Continuous Deployment
    1. Fully automated release cycle
    2. Git, AWS CodePipeline, AWS CodeBuild (Windows + Linux)
    3. Nothing to provision, supports hundreds of parallel builds
    4. (Fun: rollouts are approved using AWS IoT Buttons J)
    

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67. HI! Infrastructure / Why AWS
    • Only Cloud Provider that allows us to be 100% IaC and Serverless:
    • Domain Names
    • Content Distribution
    • Computing
    • Storage
    • Analytics & Business Dashboards
    • CI / CD
    

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68. HI! Infrastructure / Why AWS: FinDev
    

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69. • Exactly define the infrastructure cost
    for each user action!
    • Business value?
    More: https://www.slideshare.net/theburningmonk/serverless-is-more-findev-than-devops
    

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70. Digital Attitude on AWS / Summary
    1. Infrastructure as Code: easy replicability, multiple
    accounts and regions
    2. No pay for idle
    3. No pre-provisioning and no* capacity planning
    4. Define cost per user action
    

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71. Thank you!
    S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
    Danilo Poccia
    @danilop
    AWS
    Simone Lusenti
    @Lanzone31
    digitalattitude.com
    

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