Building Serverless Applications in Ruby with AWS Lambda

An overview of the benefits of AWS Lambda, and a survey of open source tools that can help Ruby developers create serverless applications using AWS Lambda.

Transcript

1. BUILDING SERVERLESS APPLICATIONS IN RUBY WITH AWS LAMBDA
2. WHO AM I? ▸ Currently: Building Serverless Open Source Tooling at AWS ▸ Formerly: AWS SDK for Ruby Team ▸ Author of Ruby runtime for AWS Lambda ▸ Twitter: @alexwwood ▸ Please do tweet your comments and questions about this talk!
3. AGENDA ▸ Overview of AWS Lambda & Ecosystem ▸ Review of Open Source Tools ▸ AWS SAM CLI ▸ AWS SDK for Ruby ▸ aws-record ▸ Demo ▸ Web and Event-Driven Application Hybrid
4. AWS LAMBDA & ECOSYSTEM
5. SERVERLESS IS DEAD. Chris Munns, AWS Principal Developer Advocate CAUSE OF DEATH: EXCESSIVE BUZZWORD USAGE
6. WHAT SERVERLESS MEANS
7. WHAT SERVERLESS MEANS No Servers to Provision or Manage
8. WHAT SERVERLESS MEANS Scales With Usage
9. WHAT SERVERLESS MEANS Pay For Value
10. WHAT SERVERLESS MEANS Availability and Fault Tolerance Built In
11. PRODUCTION APP DEVELOPMENT INVOLVES MANY THINGS ▸ Code & Tests ▸ User Authentication ▸ Monitoring ▸ Load Balancing ▸ Auto Scaling ▸ Handling Server/Container Failures ▸ Security Isolation ▸ Operating System Management
12. PRODUCTION APP DEVELOPMENT INVOLVES MANY THINGS ▸ Code & Tests ▸ User Authentication ▸ Monitoring ▸ Load Balancing ▸ Auto Scaling ▸ Handling Server/Container Failures ▸ Security Isolation ▸ Operating System Management
13. AWS LAMBDA HANDLES MANY THINGS ▸ Code & Tests ▸ User Authentication ▸ Monitoring ▸ Load Balancing ▸ Auto Scaling ▸ Handling Server/Container Failures ▸ Security Isolation ▸ Operating System Management AWS Lambda Handles These AWS Lambda Integrates With Solutions For These
14. AWS LAMBDA WORKS FOR MANY THINGS ▸ Web Applications ▸ Backend Services ▸ Data Processing ▸ Chatbots ▸ Amazon Alexa ▸ IT Automation
15. OPEN SOURCE TOOLS
16. THIS IS ONE OF THE THINGS MY NEW TEAM OWNS AWS SAM CLI ▸ Generate, Build, and Deploy Serverless Applications ▸ Develop and Test AWS Lambda Functions Locally ▸ Local API Gateway w/ Hot Reloading ▸ https://github.com/awslabs/aws-sam-cli
17. NOW IN VERSION 3! AWS SDK FOR RUBY ▸ Supports >= 174 AWS services. ▸ Built-in support for pagination, waiters for state changes. ▸ Helpful abstractions for Amazon S3, Amazon SQS, and more. ▸ Modularized with statically generated code for performance. ▸ Removes 'autoload' for thread safety. ▸ https://github.com/aws/aws-sdk-ruby
18. WATCH THE "DAT401" SESSION FROM AWS RE:INVENT 2018, YOU WON'T REGRET IT AWS-RECORD GEM ▸ Data mapping abstraction library for Amazon DynamoDB. ▸ Similar patterns to ActiveRecord APIs. ▸ Full support for collection types (Lists, Maps, Sets). ▸ Declarative table configuration and migrations. ▸ https://github.com/aws/aws-sdk-ruby-record
19. LIVE DEMO IF YOU JUST CAME FOR THE DOGS, THEN THIS IS WHAT YOU CAME FOR!
20. THE IMPORTANT THING IS THAT IT HAS PUPPIES. EVERYTHING ELSE IS A BONUS! DOG RATING APP DESIGN ObjectCreated API Gateway Sinatra App Is it a dog? Write to Index if Dog DynamoDB Table Upload via Presigned Post ‣ Show Dogs ‣ Upload Dog ‣ Rate Dog
21. THE IMPORTANT THING IS THAT IT HAS PUPPIES. EVERYTHING ELSE IS A BONUS! WEB APPLICATION COMPONENTS API Gateway Sinatra App DynamoDB Table Upload via Presigned Post ‣ Show Dogs ‣ Upload Dog ‣ Rate Dog
22. THE IMPORTANT THING IS THAT IT HAS PUPPIES. EVERYTHING ELSE IS A BONUS! EVENT-DRIVEN COMPONENTS ObjectCreated Is it a dog? Write to Index if Dog DynamoDB Table
23. THE IMPORTANT THING IS THAT IT HAS PUPPIES. EVERYTHING ELSE IS A BONUS! EVENT-DRIVEN COMPONENTS ObjectDeleted DynamoDB Table Delete Item from Table
24. CAN YOU JUST SHOW ME THE DEMO, PLEASE? - Somebody (Probably)
25. CONCLUSION
26. SERVERLESS BENEFITS ▸ AWS Lambda handles many elasticity, scalability, high- availability, security and fault-tolerance problems for you. ▸ Focus more on code, ship faster.
27. 4 OUT OF 5 DENTISTS RECOMMEND CHECKING THESE TALKS OUT RELATED TALKS ▸ ATX Serverless Days 2019 - Serverless is Dead ▸ AWS re:Invent 2018 ARC306 - Serverless Architectural Patterns ▸ AWS re:Invent 2018 SRV305 - Inside AWS: Technology Choices for Modern Applications ▸ AWS re:Invent 2018 DAT401 - Advanced Design Patterns for Amazon DynamoDB
28. THANK YOU! ▸ Find our work on GitHub: ▸ https://github.com/aws/aws-sdk-ruby ▸ https://github.com/aws/aws-sdk-ruby-record ▸ https://github.com/awslabs/aws-sam-cli ▸ Find me on the internets: ▸ Twitter: @alexwwood ▸ Web: https://alexwood.codes