AWS ReInvent 2016 - DEV205-Monitoring Hold The Infrastructure

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The Plan Learn about the basics of AWS Lambda Add AWS Lambda to your infrastructure Monitoring 101 (the tl;dr version) Monitoring AWS Lambda

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What is AWS Lambda The next stage in a long progression... physical boxes virtual machines on physical boxes containers lambda AWS instances

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Important AWS Lambda Concepts TRIGGER BASED

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Important AWS Lambda Concepts STATELESS STATELESS

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Important AWS Lambda Concepts SERVERLESS AS FAR AS YOU ARE CONCERNED

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Important AWS Lambda Concepts Each event will trigger a new Lambda function There is a safety limit per region of 100 (contact support for changes)

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What is a AWS Lambda Function • Your executable code • No restrictions • Priced based on execution time, quantity, and memory

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What can trigger AWS Lambda? Files Amazon S3 Database Updates Amazon DynamoDB Streams Amazon Kinesis Messages Amazon SNS, Amazon SES User Data & Authentication Amazon Cognito Infrastructure Changes AWS CloudFormation Logs, Events, Metrics Amazon CloudWatch IoT Echo, Amazon API Gateway

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Lambda Lambda Lambda Lambda $goad

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http://benchling.engineering/crispr-aws-lambda/

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Other Examples Bittorrent Tracker Hugely scalable using S3 https://blog.zappa.io/posts/zappa-bittorrent- tracker Chat Bots Easy to build https://claudiajs.com/claudia-bot-builder.html S3 Data Loading Simpler than the typical Kinesis process https://www.trek10.com/blog/serverless- architectures-s3-data-loading/ Skills for the Amazon Echo Make one today in the hall

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Best Practices from AWS Write stateless code Local vars Permissions Minimize startup Monitor Delete old functions

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Adding AWS Lambda to your infrastructure

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How to Create a AWS Lambda Function 1.Write the code 2.Setup on AWS 3.Debug

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AWS Lambda Demo

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Frameworks node-lambda

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Native Gotchas Lambda runs on an Amazon Linux container …and your dev box probably isn’t Amazon Linux… …so native NPM modules are problematic

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Native npm 1. Launch an Amazon Linux ec2 2. Use a node version manager 3. Install node 4.3 4. Install the native modules you need 5. Package the modules and dl to your box 6. Deploy

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Building the demo with node-lambda Four files: • package.json • .env • event.json • index.js

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Monitoring 101 the tl;dr version

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Collecting data is cheap

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Collecting data is cheap; Not having it when you need it can be expensive

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Monitoring AWS Lambda

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What are the AWS Lambda Metrics aws.lambda.duration, min, max, sum aws.lambda.errors aws.lambda.invocations aws.lambda.throttles

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Three Options for Monitoring AWS Lambda 1. Add a custom metric to CloudWatch 2. Add metric directly to monitoring application 3. Add a line to the CloudWatch logs

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Monitoring example

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Monitoring example

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Monitoring example

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Monitoring example

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Matt Williams Evangelist - Datadog [email protected] @technovangelist Twitter: @list