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AWS Lambda & Ruby/Rails with SAM
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Congratulations! The simple fact that you are sitting here listening to me, means you've made a glorious contribution to Science! Tragic, but informative. Cave Johnson
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Ken Collins Staff Engineer @CustomInk @MetaSkills
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⠀ ⠀ ⠀
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KNOWLEDGE Rails & Lambda Ruby & Lambda Tech Intro AWS SAM Objectives & Results
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Change The World One Lambda at a Time!
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Using Ruby with AWS Lambda & SAM https://github.com/757rb/hello-757rb-lambda
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Custom Ink | Tech Blog https://technology.customink.com
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https://dctechslack.herokuapp.com https://slackin757dev.herokuapp.com DCTech || 757Dev
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Tech Intro
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Strap Bootstrap your macOS development system. GitHub Project https://github.com/MikeMcQuaid/strap
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• ./bin/ • bootstrap, setup, build, server, deploy, test, … • Usually Bash Strap
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AWS Lambda
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AWS SAM GitHub Project https://github.com/awslabs/serverless-application-model/
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$ sam
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https://github.com/awslabs/serverless- application-model/blob/master/versions/ 2016-10-31.md
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https://docs.aws.amazon.com/ AWSCloudFormation/latest/UserGuide/aws- template-resource-type-ref.html CLOUDFORMATION
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$ sam local start-api
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$ sam build --use-container
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$ sam package … $ sam deploy …
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Ruby & Lambda
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Project Pillars • Local Development Feedback • Using Gems with Native Extensions • Using DynamoDB
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Contrived Architecture DynamoDB HTTP /plos?query={query}
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Docker Image lambci/lambda:ruby2.5
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Local Dev Deps
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Easy Development & Browser Refreshes
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Patterns • Directories (app, test, etc) • Lean Handler & PORO Usage • Debug HTML. Event, Context, & ENV • Minitest, TravisCI, & Capybara* *not really
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Aws::Record GitHub Project https://github.com/aws/aws-sdk-ruby-record
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DynamoDB
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Used in IAM Execution Role DynamoDB
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Patterns…
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Patterns • Easy/Lazy Development & Test • Table Migrations • SimpleTable On Demand Defaults
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Using Ruby with AWS Lambda & SAM https://github.com/757rb/hello-757rb-lambda
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Rails & Lambda
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Product Site http://rubyonjets.com
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Ruby on Jets
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Ruby on Jets
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Little Gotcha List • Docker Shared Volume Perf • Logging & RAILS_LOG_TO_STDOUT • Keeping Package Size Down. • Invoke URL & Custom Domains
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Coming Soon • Quality Rack Integration. Session, Cookies, & More. • Deploy asset:precompile to S3. • Encrypted Session Secret via AWS System Manager Param Store. • Better Gemfile dev/test groups.
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Lambda Layers
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--help
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RailsConf 2019
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https://dctechslack.herokuapp.com https://slackin757dev.herokuapp.com DCTech || 757Dev
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