Learn to Program The Cloud with Ruby & AWS Lambda

A curated set of resources and guides on how to use Ruby & Rails as your entry point to learning native AWS cloud architectures. Presented to DC Ruby User Group. https://www.meetup.com/dcruby/events/wzqbvpybcjbxb/

Transcript

1. Learn to Program
   The Cloud
   with Ruby & AWS Lambda
   

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2. Ken Collins @MetaSkills Principal Engineer @CustomInkTech
   

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3. Programming
   The Cloud
   ⛅
   

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5. Getting Started
   AWS, SAM, & Lambda
   https://aws.amazon.com/serverless/sam/
   

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6. https://dev.to/aws-heroes/aws-lambda-microservice-
   workshop-using-s3-libvips-ruby-4o96
   Start Small. Ruby S3/Image Microservice.
   

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7. https://lamby.custominktech.com/docs/quick_start
   And Grow. Rails & JavaScript Starter Application.
   Deploy in 5 min.
   

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8. https://lamby.custominktech.com/docs/quick_start
   And Grow. Rails & JavaScript Starter Application.
   

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9. https://lamby.custominktech.com/docs/quick_start
   And Grow. Rails & JavaScript Starter Application.
   

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10. Unconscious Bias? or
    Knowledge Gaps?
    (open discussion)
    

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11. Rails & Lambda
    (from the inside out)
    

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12. How Does
    Lamby Work?
    

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13. How Does
    Lamby Work?
    Hash Convert
    

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14. How Does
    Lamby Work?
    app.rb
    Everything else is
    just basically Rails
    

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15. How Does
    Lamby Work?
    3 Seconds (cold start)
    Milliseconds
    

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16. • Think of app.rb as config.ru
    for API Gateway.
    • Rails is in good company!
    Express, Flask, etc all do the
    same thing.
    • Think of Lambda as a
    cheaper PAYGO on Heroku.
    Rails & Lambda (inside out)
    

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17. Scaling compute
    is not your
    problem anymore.
    

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18. The Serverless
    Application Model
    https://aws.amazon.com/serverless/sam/
    

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19. Core SAM CLI Commands. More on the ./bin directory later.
    

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20. Infrastructure as Code (IaC) . I hope you like YAML!
    

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21. SAM is Syntactic Sugar for CloudFormation. Meta & DRY!
    

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22. AWS::Serverless::Function
    

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23. • AWS Resource Specification Language.
    • CLI Interface to Develop & Deploy Apps.
    • Lamby Uses Cutters Templates.
    • Super fast Squirrel on GitHub. Keep Up!
    • Bookmark These Resources…
    Serverless Application Model
    

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24. AWS Serverless Application Model (AWS SAM) Specification
    https://github.com/awslabs/serverless-application-model
    https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-specification.html
    Intrinsic Function Reference
    https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference.html
    AWS Resource and Property Types Reference
    https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-template-resource-type-ref.html
    AWS SAM CLI GitHub Release Notes
    https://github.com/awslabs/aws-sam-cli/releases
    

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25. Docker Conventions
    
    
    

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26. https://github.blog/2015-06-30-scripts-to-rule-them-all/
    Normalized Script Convention
    

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27. Docker & Docker Compose Bin Scripts.
    

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28. Docker Compose. Avoids Repeated ENV & Volume Configs
    

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29. Docker. Rails, SAM, JavaScript, Etc on Lambda Dev.
    

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30. Script Conventions. Underscore for Container
    bin/_server
    bin/server
    

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31. • Node & Webpacker
    • Compiled & Served
    Assets
    • Dotenv Integration
    • Encrypted
    Credentials with SSM
    Parameter Store
    Dig In & Explore
    https://github.com/customink/lamby-cookiecutter
    • CloudWatch Logging
    & Lograge
    • API Gateway HTTP
    API v2 Default
    • Custom Domain
    Names, SSL, &
    CloudFront
    •
    https://lamby.custominktech.com
    

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32. • Native MySQL & PostgreSQL using
    AWS RDS Proxy. Migrations?
    • Best Practices for Background Tasks
    & Event-Driven architecture using
    EventBridge, Asynchronous
    Invocations, and SNS/SQS. ActiveJob?
    Coming Soon…
    

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