Serverless: State of the Union

Serverless: State of the Union

Builders' Day, Edinburgh, February 21st, 2018

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Danilo Poccia

February 21, 2018
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    © 2018, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Serverless: State of the Union Danilo Poccia Technical Evangelist danilop@amazon.com @danilop danilop
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. A typical day for a developer… Manager “We need an app to let our customers update preference settings – our competitors just launched the same thing, so I need it fast. I don’t want to pay a lot for it, especially when no one is using it. But remember that we’re growing, so make sure it scales great and is easy to manage and operate. And you’re on your own – sorry!” Developer “Not a problem. I’ll make it serverless…”
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Serverless means… No Server Management The picture can't be displayed. Flexible Scaling No Idle Capacity $ High Availability
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Joe promised his boss an app. Now what? Step 1: Find a working example! Serverless web app with …an API hosted on Amazon API Gateway …access to existing data stored in Amazon DynamoDB …static content served by Amazon S3 and Amazon CloudFront …dynamic content/business logic encoded as Lambda functions What we need
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    • Search and browse ready-made apps and samples • Customize

    open source apps to get started quickly • Share apps privately or publically •Monetize APIs using theAWS Marketplace • Powered by AWS Serverless Application Model (AWS SAM)! AWS Serverless Application Repository (preview) © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    Lambda Function Editor © 2017, Amazon Web Services, Inc. or

    its Affiliates.All rights reserved. • Edit multiple files at once! • Create new files for existing packages • Run tests and view results and logs without leaving the editor • Save test inputs and reuse them later
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    Serverless app benefits © 2017, Amazon Web Services, Inc. or

    its Affiliates.All rights reserved. Go from concept to working code in under 5 minutes. And your app isn’t just a prototype… • 1,000 concurrent executions (10K TPS) by default. • Every account in good standing is automatically approved to 3X the default!
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    • 1,000 concurrent executions (10K TPS) by default. Auto-approvals for

    everyone to triple. Faster perf with cold-start optimization! Up to 80% reduction in start times for larger functions Serverless app benefits © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    • 1,000 concurrent executions (10K TPS) by default. Auto-approvals for

    everyone to triple. • Up to 80% faster cold start times Built-in logging and monitoring, now with: “grab-n-go” logs in the Lambda console Serverless app benefits © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    • 1,000 concurrent executions (10K TPS) by default. Auto-approvals for

    everyone to triple. • Up to 80% faster cold start times • Find Lambda logs instantly 1.5GB Serverless app benefits 3GB © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved. Top memory size of…
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    • 1,000 concurrent executions (10K TPS) by default. Auto-approvals for

    everyone to triple. • Up to 80% faster cold start times • Find Lambda logs instantly • Top memory size of 3GB Go Serverless! Serverless app benefits © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Next, Joe needs to make some changes. Step 2: Customize and share Need an IDE for local dev/test/debug Customize the app we deployed in step 1 Set up a CI/CD pipeline for the team Deploy (safely!) What we need to do
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Easy-to-use IDE in the cloud Builtin GitHub support Builtin Lambda blueprint support Builtin SAM Local: Local testing! IDE debugging! Deploy directly to Lambda and/or push updates to GitHub New AWS Cloud9
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Automated CI/CD process Git push your changes from Cloud9 when ready to share… Set up an AWS CodePipeline to build automatically on updates Local Testing
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. I need to deploy Lambda functions safely and incrementally. Customer feedback How can I deploy multiple functions and APIs in a coordinated way? How do I roll back automatically? How can I shape traffic between two versions of an API?
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Safe, incremental serverless deployment Lambda: Weighted aliases • Set percentage of traffic between two versions of the same function API Gateway: Sub-stages for incremental deployments • Share traffic between two stages AWS CodeDeploy: Automated support for safe serverless deployments • Amazon CloudWatch metrics-driven rollout/rollback
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Another typical day… Manager: “That app you built is working great, but now we need to include data from a relational DB and one of our legacy services in our VPC. Is your serverless architecture going to handle that?” Developer “Not a problem.”
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Next up: Deal with legacy stuff. Step 3: Connect to enterprise systems Monitor concurrency Limit concurrency for legacy connectivity Hook up APIs to VPC-based services Audit and log all invocations What we need to do
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. I need a way to protect the capacity of a Lambda function from others running in the same account. Customer feedback I want to temporarily disable a function. Can you create a “dev mode” for functions? Lambda can overwhelm my legacy systems with too many calls
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. I need a way to protect the capacity of a Lambda function from others running in the same account. Customer Feedback I want to temporarily disable a function. Can you create a “dev mode” for functions? Lambda can overwhelm my legacy systems with too many calls Insight: Concurrency control is a key element of managing functions in a serverless app.
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    Lambda: Concurrency metric Lambda: Per-function concurrency throttles Enterprise connectivity What

    you can do with it 1. Limit concurrency to legacy systems 2. Protect serverless production services from other functions in the same account 3. Temporarily disable a function 4. Develop functions with limited billing and “runaway” protection © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    VPC (PrivateLink) integrations Access services and data in your VPC

    from an API Regional endpoints Fast, region-specific API endpoints Enterprise connectivity: API Gateway © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. API Gateway connectivity solutions To From Internet Regional AWS Service Customer VPC Internet Regional AWS Service Existing Service (Edge-optimized, public integrations) Private VPC Region-optimized Endpoints Region Endpoints +Private VPC Recent New
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Log and audit Structured logging for APIs AWS CloudTrail support for Lambda functions
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    Serverless for the enterprise: checklist Uptime Scale Performance Management Safe

    deploys Concurrency controls © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. What about GraphQL?
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    GraphQL Open, declarative data-fetching specification != Graph database Use NoSQL,

    Relational, HTTP, etc. Traditional data-fetching GraphQL /posts /postInfo /postJustTitle /postsByAuthor /postNameStartsWithX /commentsOnPost
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    How does GraphQL work? { "id": "1", "name": "Get Milk",

    “priority": "1" }, { "id": “2", "name": “Go to gym", “priority": “5" },… type Query { getTodos: [Todo] } type Todo { id: ID! name: String description: String priority: Int duedate: String } query { getTodos { id name priority } } Model data with application schema Client requests what it needs Only that data is returned
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    GraphQL Schema type Event { id: ID! name: String where:

    String when: String description: String comments: [Comment] } type Comment { commentId: String! eventId: ID! content: String! createdAt: String! }
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    GraphQL Schema Mutation type Mutation { createEvent( name: String!, when:

    String!, where: String!, description: String! ): Event deleteEvent(id: ID!): Event commentOnEvent( eventId: ID!, content: String!, createdAt: String! ): Comment }
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    GraphQL Schema Mutation Query type Query { getEvent(id: ID!): Event

    listEvents( limit: Int, nextToken: String ): EventConnection }
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    GraphQL Schema Mutation Query Subscription Realtime? YES Batching? YES Pagination?

    YES Relations? YES Aggregations? YES Search? YES Offline? YES
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    AWS AppSync DynamoDB Table Lambda Function Elasticsearch Service GraphQL Schema

    Upload Schema GraphQL Query Mutation Subscription Real-time Offline AppSync API Cognito User Pool
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    AWS AppSync DynamoDB Table Lambda Function Elasticsearch Service GraphQL Schema

    Upload Schema GraphQL Query Mutation Subscription Real-time Offline AppSync API Cognito User Pool Legacy Application
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    AWS AppSync DynamoDB Table Lambda Function Elasticsearch Service GraphQL Schema

    Upload Schema GraphQL Query Mutation Subscription Real-time Offline DynamoDB to Elasticsearch Sync Function AppSync API Cognito User Pool
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    AWS AppSync DynamoDB Table Lambda Function Elasticsearch Service GraphQL Schema

    Autogenerate Schema GraphQL Query Mutation Subscription Real-time Offline AppSync API Cognito User Pool
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    © 2018, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Demo: AWS AppSync & GraphQL
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Serverless for everything Lambda and API Gateway in every commercial AWS Region + AWS GovCloud Lambda@Edge new features: • Content-based Dynamic Origin Selection • Network Calls from Viewer Events • Advanced Response Generation
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    © 2017, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Serverless for everything • Faster cold start performance • Assurance programs: ISO, PCI, HIPAA • …and now SOC 1, SOC 2, and SOC 3 • Lambda for devices (AWS Greengrass, AWS Snowball Edge) • Lambda for Windows – CoreCLR 2.0
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    An expanding Serverless ecosystem Build and CI/CD Logging and Monitoring

    Applications and Deployment Chalice Framework Serverless Java Container © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    • Turn any Go program into a Lambda function by

    adding 2 lines • Open source connector • Now available! Golang in Lambda © 2017, Amazon Web Services, Inc. or its Affiliates.All rights reserved.
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    © 2018, Amazon Web Services, Inc. or its Affiliates. All

    rights reserved. Serverless: State of the Union Danilo Poccia Technical Evangelist danilop@amazon.com @danilop danilop