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© 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved. Danilo Poccia, Technical Evangelist @danilop Serverless in Production With CI/CD and End-to-End Tracing

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What is Serverless?

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Operations and management Scaling Provisioning and utilization Availability and fault tolerance Owning servers means dealing with ...

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AWS Lambda: Run code in response to events FUNCTION SERVICES (ANYTHING) Changes in data state Requests to endpoints Changes in resource state Node Python Java C# EVENT SOURCE

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No servers to provision or manage Scales with usage Never pay for idle Availability and fault tolerance built in Benefits of Lambda and serverless compute

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Example Serverless Application Architecture

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Web Applications and Backends

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Data Processing

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Data Processing

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Serverless IoT with AWS Lambda at iRobot

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AWS Lambda Amazon CloudFront Amazon S3 Amazon DynamoDB Amazon Redshift Amazon Route 53 Amazon VPC Amazon CloudWatch AWS CloudFormation AWS CloudTrail AWS Config AWS IAM AWS KMS AWS WAF Amazon Cognito Amazon SNS Amazon API Gateway Amazon SQS Amazon Elasticsearch Service Amazon Kinesis Amazon QuickSight AWS IoT How iRobot leverages AWS

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API Gateway App requests over HTTPS CRUD operations

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IoT MQTT CRUD operations

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IoT MQTT MQTT Presigned URL Staging bucket

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Infrastructure as Code

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AWS CloudFormation brings: • Infrastructure as code • Easy to provision and manage a collection of related AWS resources • Input .yaml file and output provisioned AWS resources • Optimized for infrastructure AWS SAM: • CloudFormation extension optimized for serverless • New serverless resources: functions, APIs, and tables • Supports anything CloudFormation supports • Open specification (Apache 2.0) AWS Serverless Application Model (AWS SAM)

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AWSTemplateFormatVersion: '2010-09-09' Resources: GetHtmlFunctionGetHtmlPermissionProd: Type: AWS::Lambda::Permission Properties: Action: lambda:invokeFunction Principal: apigateway.amazonaws.com FunctionName: Ref: GetHtmlFunction SourceArn: Fn::Sub: arn:aws:execute-api:${AWS::Region}:${AWS::AccountId}:${ServerlessRestApi}/Prod/ANY/* ServerlessRestApiProdStage: Type: AWS::ApiGateway::Stage Properties: DeploymentId: Ref: ServerlessRestApiDeployment RestApiId: Ref: ServerlessRestApi StageName: Prod ListTable: Type: AWS::DynamoDB::Table Properties: ProvisionedThroughput: WriteCapacityUnits: 5 ReadCapacityUnits: 5 AttributeDefinitions: - AttributeName: id AttributeType: S KeySchema: - KeyType: HASH AttributeName: id GetHtmlFunction: Type: AWS::Lambda::Function Properties: Handler: index.gethtml Code: S3Bucket: flourish-demo-bucket S3Key: todo_list.zip Role: Fn::GetAtt: - GetHtmlFunctionRole - Arn Runtime: nodejs4.3 GetHtmlFunctionRole: Type: AWS::IAM::Role Properties: ManagedPolicyArns: - arn:aws:iam::aws:policy/AmazonDynamoDBReadOnlyAccess - arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole AssumeRolePolicyDocument: Version: '2012-10-17' Statement: - Action: - sts:AssumeRole Effect: Allow Principal: Service: - lambda.amazonaws.com ServerlessRestApiDeployment: Type: AWS::ApiGateway::Deployment Properties: RestApiId: Ref: ServerlessRestApi Description: 'RestApi deployment id: 127e3fb91142ab1ddc5f5446adb094442581a90d' StageName: Stage GetHtmlFunctionGetHtmlPermissionTest: Type: AWS::Lambda::Permission Properties: Action: lambda:invokeFunction Principal: apigateway.amazonaws.com FunctionName: Ref: GetHtmlFunction SourceArn: Fn::Sub: arn:aws:execute-api:${AWS::Region}:${AWS::AccountId}:${ServerlessRestApi}/*/ANY/* ServerlessRestApi: Type: AWS::ApiGateway::RestApi Properties: Body: info: version: '1.0' title: Ref: AWS::StackName paths: "/{proxy+}": x-amazon-apigateway-any-method: x-amazon-apigateway-integration: httpMethod: ANY type: aws_proxy uri: Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03- 31/functions/${GetHtmlFunction.Arn}/invocations responses: {} swagger: '2.0' CF template example – API triggering Lambda AWSTemplateFormatVersion: '2010-09-09’ Transform: AWS::Serverless-2016-10-31 Resources: GetHtmlFunction: Type: AWS::Serverless::Function Properties: CodeUri: s3://flourish-demo-bucket/todo_list.zip Handler: index.gethtml Runtime: nodejs4.3 Policies: AmazonDynamoDBReadOnlyAccess Events: GetHtml: Type: Api Properties: Path: /{proxy+} Method: ANY ListTable: Type: AWS::Serverless::SimpleTable AWS SAM example – API triggering Lambda AWS SAM: Less complexity, more power

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What is Continuous Integration?

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What is Continuous Integration? Automation Component + Cultural Component

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Continuous Integration Benefits Improve Developer Productivity Find and Address Bugs Quicker Deliver Updates Faster

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Set Up a Serverless CI/CD Pipeline on AWS AWS CodeCommit AWS CodeBuild AWS CodePipeline AWS CloudFormation Amazon S3 GitHub AWS SAM Commit Build Deploy + Tests (CodeBuild or other services) + Manuals Approval (CodePipeline) + Multiple Environments (CodePipeline + CloudFormation)

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How to make it easier?

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AWS CodeStar New!

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New! AWS X-Ray

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Time for a demo J

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Build a Serverless Web Application https://aws.amazon.com/getting-started/serverless-web-app/

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JavaScript + AWS Mobile Hub Ionic + AWS MobileHub Starter Project https://github.com/ionic-team/ionic2-starter-aws Enhanced JavaScript development with AWS Mobile Hub https://aws.amazon.com/blogs/mobile/enhanced-javascript-development-with-aws-mobile-hub/ Deploy a React App to S3 and CloudFront with AWS Mobile Hub https://aws.amazon.com/blogs/mobile/deploy-a-react-app-to-s3-and-cloudfront-with-aws-mobile-hub/ Integrate the AWS SDK for JavaScript into a React App https://aws.amazon.com/blogs/mobile/integrate-the-aws-sdk-for-javascript-into-a-react-app/

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Conclusion Lambda is a fundamental component of modern application architectures It has a place in everything from data processing to simple web apps

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Thank you! @danilop