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© 2020, Amazon Web Services, Inc. or its Affiliates. Danilo Poccia Principal Evangelist, Serverless @danilop A quick intro to serverless & AWS

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© 2020, Amazon Web Services, Inc. or its Affiliates. Why serverless?

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© 2020, Amazon Web Services, Inc. or its Affiliates. IT often starts with a single server… Single Server

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© 2020, Amazon Web Services, Inc. or its Affiliates. Your customers are happy… Single Server Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Your customers are happy… until they are not Single Server Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Separate business logic from data Application Server Database Server Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Scalability & availability Two Application Servers Database Server Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Balancing traffic across multiple application server Two Application Servers Database Server Load Balancer Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Managing failover across multiple application server Two Application Servers Database Server Load Balancer Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability for the database Two Application Servers Active / Standby Database Load Balancer Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability for the database Two Application Servers Active / Standby Database Load Balancer Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Deploying on AWS... Two Amazon EC2 Instances Amazon RDS Database Application Load Balancer Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. 3 it’s better than 2, elasticity is better than any number Amazon EC2 Auto Scaling Amazon RDS Database Application Load Balancer Customers Amazon Aurora RDS for MySQL RDS for PostgreSQL RDS for MariaDB RDS for Oracle RDS for SQL Server

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© 2020, Amazon Web Services, Inc. or its Affiliates. Scaling the database is more difficult Amazon EC2 Auto Scaling Amazon Aurora Database Application Load Balancer Customers Amazon Aurora MySQL or PostgreSQL compatible

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© 2020, Amazon Web Services, Inc. or its Affiliates. Which database to use? Amazon EC2 Auto Scaling Amazon Aurora Database Application Load Balancer Customers

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© 2020, Amazon Web Services, Inc. or its Affiliates. Database freedom Amazon Aurora MySQL or PostgreSQL compatible Amazon DynamoDB Amazon DocumentDB with MongoDB compatibility Amazon Neptune (Graph) Amazon QLDB (Ledger) Amazon Managed Apache Cassandra Service

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© 2020, Amazon Web Services, Inc. or its Affiliates. Using containers Amazon Aurora MySQL or PostgreSQL compatible Amazon DynamoDB Amazon DocumentDB with MongoDB compatibility Amazon Neptune (Graph) Amazon QLDB (Ledger) Amazon Managed Apache Cassandra Service Amazon Elastic Container Service Amazon Elastic Kubernetes Service Container Container Container Container Container

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© 2020, Amazon Web Services, Inc. or its Affiliates. Tasks, Pods, and Services Amazon Aurora MySQL or PostgreSQL compatible Amazon DynamoDB Amazon DocumentDB with MongoDB compatibility Amazon Neptune (Graph) Amazon QLDB (Ledger) Amazon Managed Apache Cassandra Service Amazon ECS Amazon EKS Task Pod Service

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© 2020, Amazon Web Services, Inc. or its Affiliates. Managing containers, not clusters Amazon Aurora MySQL or PostgreSQL compatible Amazon DynamoDB Amazon DocumentDB with MongoDB compatibility Amazon Neptune (Graph) Amazon QLDB (Ledger) Amazon Managed Apache Cassandra Service Amazon ECS Amazon EKS Task Pod Service AWS Fargate

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© 2020, Amazon Web Services, Inc. or its Affiliates. AWS Lambda Function Function Function What about functions? Something happens! Event Any public or private resource

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© 2020, Amazon Web Services, Inc. or its Affiliates. Using functions AWS Lambda Function Function Function Amazon API Gateway Application Load Balancer AWS SDK Lambda Invoke API sync/async

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© 2020, Amazon Web Services, Inc. or its Affiliates. Adding storage AWS Lambda Function Function Function Amazon API Gateway Application Load Balancer AWS SDK Lambda Invoke API sync/async Amazon S3 Bucket HTML, CSS, JS Images

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© 2020, Amazon Web Services, Inc. or its Affiliates. Adding storage and authentication AWS Lambda Function Function Function Amazon API Gateway Application Load Balancer AWS SDK Lambda Invoke API sync/async Amazon S3 Bucket Amazon Cognito User Auth HTML, CSS, JS Images

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© 2020, Amazon Web Services, Inc. or its Affiliates. How does serverless work? API Gateway Storage Databases Analytics . . . Your unique business logic API call User uploads a picture Customer data updated Anomaly detected . . . Fully-managed services Events Functions

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© 2020, Amazon Web Services, Inc. or its Affiliates. What about availability and scalability?

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability and scalability – AWS Global Infrastructure

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability and scalability – AWS Region Region

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability and scalability – Availability Zones Region Availability Zone Availability Zone Availability Zone

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability and scalability – EC2 instances Region Availability Zone Availability Zone Availability Zone

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability and scalability – EC2 Auto Scaling Region Availability Zone Availability Zone Availability Zone Auto Scaling group Auto Scaling group

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability and scalability – Containers Region Availability Zone Availability Zone Availability Zone

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability and scalability – Load Balancer Region Availability Zone Availability Zone Availability Zone

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© 2020, Amazon Web Services, Inc. or its Affiliates. Availability and scalability – Fully managed services Region Availability Zone Availability Zone Availability Zone API Gateway Lambda Function DynamoDB Table S3 Bucket

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© 2020, Amazon Web Services, Inc. or its Affiliates. 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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© 2020, Amazon Web Services, Inc. or its Affiliates. A serverless demo

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© 2020, Amazon Web Services, Inc. or its Affiliates. Serverless real-time apps – What to build? • Building a chat is the mandatory example for WebSockets • Can I build something that can help in being a “better” person? • Not in person communication is hard • Can machine learning help? Some services are super easy to use!

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© 2020, Amazon Web Services, Inc. or its Affiliates. Let’s build a “Positive Chat” J • Avoid negative sentiment • Reject negative sentences • Positive sentiment gamification • Automatically translate between different languages • Extract message topics to improve searchability and discoverability • Create and update a chat room “tag cloud” • Search or filter messages by “tag”

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© 2020, Amazon Web Services, Inc. or its Affiliates. Let’s build a “Positive Chat” J • Attach images to messages • Moderate content • Describe image content (objects, people, emotions) • Find text in images • Anonymize people faces • For all people or based on estimated age • Cover faces with emoticon based on actual emotions

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© 2020, Amazon Web Services, Inc. or its Affiliates. Positive Chat – Serverless architecture Amazon DynamoDB Amazon Cognito Amazon API Gateway WebSocket connection PositiveChat Lambda function Connections table Conversations table Topics table Web browser AWS Cloud S3 bucket for static assets (HTML, CSS, JS) Authentication Authorization To be implemented Amazon Comprehend Amazon Translate Amazon Rekognition To be implemented

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© 2020, Amazon Web Services, Inc. or its Affiliates. $ wc -l positive-chat/app.js 326 positive-chat/app.js $ wc -l www/index.js 204 www/index.js backend + frontend ≃ 460 lines of code removing empty lines and comments https://github.com/danilop/serverless-positive-chat

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© 2020, Amazon Web Services, Inc. or its Affiliates. How to start with serverless?

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© 2020, Amazon Web Services, Inc. or its Affiliates. How to start with serverless? AWS Amplify AWS Serverless Application Model (SAM) https://aws-amplify.github.io https://aws.amazon.com/serverless/sam

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© 2020, Amazon Web Services, Inc. or its Affiliates. $ amplify

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© 2020, Amazon Web Services, Inc. or its Affiliates. $ sam

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© 2020, Amazon Web Services, Inc. or its Affiliates. More tooling available

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© 2020, Amazon Web Services, Inc. or its Affiliates. And serverless workshops J https://github.com/aws-samples/aws-serverless-workshops

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© 2020, Amazon Web Services, Inc. or its Affiliates. Thank you! @danilop Please give me your feedback! J