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A quick intro to serverless & AWS

A quick intro to serverless & AWS

ItalianCoders DevTalks, March 31st, 2020

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Danilo Poccia

March 31, 2020
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  1. © 2020, Amazon Web Services, Inc. or its Affiliates. Danilo

    Poccia Principal Evangelist, Serverless @danilop A quick intro to serverless & AWS
  2. © 2020, Amazon Web Services, Inc. or its Affiliates. Why

    serverless?
  3. © 2020, Amazon Web Services, Inc. or its Affiliates. IT

    often starts with a single server… Single Server
  4. © 2020, Amazon Web Services, Inc. or its Affiliates. Your

    customers are happy… Single Server Customers
  5. © 2020, Amazon Web Services, Inc. or its Affiliates. Your

    customers are happy… until they are not Single Server Customers
  6. © 2020, Amazon Web Services, Inc. or its Affiliates. Separate

    business logic from data Application Server Database Server Customers
  7. © 2020, Amazon Web Services, Inc. or its Affiliates. Scalability

    & availability Two Application Servers Database Server Customers
  8. © 2020, Amazon Web Services, Inc. or its Affiliates. Balancing

    traffic across multiple application server Two Application Servers Database Server Load Balancer Customers
  9. © 2020, Amazon Web Services, Inc. or its Affiliates. Managing

    failover across multiple application server Two Application Servers Database Server Load Balancer Customers
  10. © 2020, Amazon Web Services, Inc. or its Affiliates. Availability

    for the database Two Application Servers Active / Standby Database Load Balancer Customers
  11. © 2020, Amazon Web Services, Inc. or its Affiliates. Availability

    for the database Two Application Servers Active / Standby Database Load Balancer Customers
  12. © 2020, Amazon Web Services, Inc. or its Affiliates. Deploying

    on AWS... Two Amazon EC2 Instances Amazon RDS Database Application Load Balancer Customers
  13. © 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
  14. © 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
  15. © 2020, Amazon Web Services, Inc. or its Affiliates. Which

    database to use? Amazon EC2 Auto Scaling Amazon Aurora Database Application Load Balancer Customers
  16. © 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
  17. © 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
  18. © 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
  19. © 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
  20. © 2020, Amazon Web Services, Inc. or its Affiliates. AWS

    Lambda Function Function Function What about functions? Something happens! Event Any public or private resource
  21. © 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
  22. © 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
  23. © 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
  24. © 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
  25. © 2020, Amazon Web Services, Inc. or its Affiliates. What

    about availability and scalability?
  26. © 2020, Amazon Web Services, Inc. or its Affiliates. Availability

    and scalability – AWS Global Infrastructure
  27. © 2020, Amazon Web Services, Inc. or its Affiliates. Availability

    and scalability – AWS Region Region
  28. © 2020, Amazon Web Services, Inc. or its Affiliates. Availability

    and scalability – Availability Zones Region Availability Zone Availability Zone Availability Zone
  29. © 2020, Amazon Web Services, Inc. or its Affiliates. Availability

    and scalability – EC2 instances Region Availability Zone Availability Zone Availability Zone
  30. © 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
  31. © 2020, Amazon Web Services, Inc. or its Affiliates. Availability

    and scalability – Containers Region Availability Zone Availability Zone Availability Zone
  32. © 2020, Amazon Web Services, Inc. or its Affiliates. Availability

    and scalability – Load Balancer Region Availability Zone Availability Zone Availability Zone
  33. © 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
  34. © 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
  35. © 2020, Amazon Web Services, Inc. or its Affiliates. A

    serverless demo
  36. © 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!
  37. © 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”
  38. © 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
  39. © 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
  40. © 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
  41. © 2020, Amazon Web Services, Inc. or its Affiliates. How

    to start with serverless?
  42. © 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
  43. © 2020, Amazon Web Services, Inc. or its Affiliates. $

    amplify
  44. © 2020, Amazon Web Services, Inc. or its Affiliates. $

    sam
  45. © 2020, Amazon Web Services, Inc. or its Affiliates. More

    tooling available
  46. © 2020, Amazon Web Services, Inc. or its Affiliates. And

    serverless workshops J https://github.com/aws-samples/aws-serverless-workshops
  47. © 2020, Amazon Web Services, Inc. or its Affiliates. Thank

    you! @danilop Please give me your feedback! J