"Build and run applications without thinking about servers". You want it? You get it! We will start this session with a motivation why serverless applications are a thing. Once we got there, we will actually start building one, of course with making use of a serverless CI/CD pipeline. After we will have looked into how we can still test it locally, we shall also dive into analyzing and debugging our app - of course in a serverless manner. Speaker: Dirk Fröhner, Senior Solutions Architect, AWS

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Dirk Fröhner, Solutions Architect, Amazon Web Services
Impress Your Friends with Your
First Serverless Application
@dirk_f5r
froehner@amazon.de@
Modern Application Web Day
2018-10-25

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Why are we
here today?

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Intro to serverless

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What is serverless computing?

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What is serverless computing?
“Build and run applications without
thinking about servers”

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What is serverless computing?
“Build and run applications without
thinking about servers”
“Pay per request, not for idle”

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Let’s take a look at the evolution of computing
Physical servers
in data centers

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Let’s take a look at the evolution of computing
Physical servers
in data centers
Virtual servers
in data centers

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Let’s take a look at the evolution of computing
Physical servers
in data centers
Virtual servers
in data centers
Virtual servers
in the cloud

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What serverless means
Scales with usageNo servers to provision or manage
High availability built-in Never pay for idle

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Orchestration and State Management
Building blocks for serverless applications
AWS Lambda
Amazon DynamoDB
Amazon SNS
Amazon API Gateway Amazon SQS Amazon Kinesis
Amazon S3
API Proxy and GraphQL Messaging and Queues Analytics
Monitoring and Debugging
Compute Storage Database
AWS X-RayAWS Step Functions Amazon Cognito
User Management and IdP
AWS AppSync Amazon Athena
AWS Lambda@Edge

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Orchestration and State Management
Building blocks for serverless applications
AWS Lambda
Amazon DynamoDB
Amazon SNS
Amazon API Gateway Amazon SQS Amazon Kinesis
Amazon S3
API Proxy and GraphQL Messaging and Queues Analytics
Monitoring and Debugging
Compute Storage Database
AWS X-RayAWS Step Functions Amazon Cognito
User Management and IdP
AWS AppSync Amazon Athena
AWS Lambda@Edge

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Orchestration and State Management
Building blocks for serverless applications
AWS Lambda
Amazon DynamoDB
Amazon SNS
Amazon API Gateway Amazon SQS Amazon Kinesis
Amazon S3
API Proxy and GraphQL Messaging and Queues Analytics
Monitoring and Debugging
Compute Storage Database
AWS X-RayAWS Step Functions Amazon Cognito
User Management and IdP
AWS AppSync Amazon Athena
AWS Lambda@Edge

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Orchestration and State Management
Building blocks for serverless applications
AWS Lambda
Amazon DynamoDB
Amazon SNS
Amazon API Gateway Amazon SQS Amazon Kinesis
Amazon S3
API Proxy and GraphQL Messaging and Queues Analytics
Monitoring and Debugging
Compute Storage Database
AWS X-RayAWS Step Functions Amazon Cognito
User Management and IdP
AWS AppSync Amazon Athena
AWS Lambda@Edge

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Bringing all that together…
S3
CloudFront
Static
Content
Content
Delivery
API
Layer
Application
Layer
Persistency
Layer
API
Gateway
DynamoDBAWS
Lambda

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Getting hands-on

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https://github.com/aws-samples/
aws-serverless-workshops

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AWS CodeStar

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AWS CodeStar
 Start developing on AWS in minutes
 Manage software delivery in one place
 Work across your team securely
 Choose from a variety of project templates

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AWS CodeCommit
 Fully managed
 Secure
 High availability
 Collaborate on code
 Faster deployment lifecycle
 Use your existing tools

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AWS CodeBuild
 Fully managed build service
 Continuous scaling
 Pay as you go
 Extensible
 Enables continuous integration and delivery
 Secure

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AWS CodePipeline
 Rapid delivery
 Configurable workflow
 Get started fast
 Easy to integrate

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AWS Cloud9
 Code with just a browser
 Code together in real time
 Build serverless applications with ease
 Direct terminal access to AWS
 Start new projects quickly

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AWS SAM – Serverless
Application Model

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AWS Serverless Application Model (SAM)
 CloudFormation extension optimized
for serverless
 New serverless resource types:
functions, APIs, and tables
 Supports anything CloudFormation
supports
 Open specification (Apache 2.0)
github.com/awslabs
serverless-application-model

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SAM template
AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Resources:
GetHtmlFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: s3://sam-demo-bucket/todo_list.zip
Handler: index.gethtml
Runtime: nodejs4.3
Policies: AmazonDynamoDBReadOnlyAccess
Events:
GetHtml:
Type: Api
Properties:
Path: /{proxy+}
Method: ANY
ListTable:
Type: AWS::Serverless::SimpleTable

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SAM template
Tells CloudFormation this is a SAM
template it needs to “transform”
Creates a Lambda function with the
referenced managed IAM policy,
runtime, code at the referenced zip
location, and handler as defined.
Also creates an API Gateway and
takes care of all
mapping/permissions necessary
Creates a DynamoDB table with 5
Read & Write units
AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Resources:
GetHtmlFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: s3://sam-demo-bucket/todo_list.zip
Handler: index.gethtml
Runtime: nodejs4.3
Policies: AmazonDynamoDBReadOnlyAccess
Events:
GetHtml:
Type: Api
Properties:
Path: /{proxy+}
Method: ANY
ListTable:
Type: AWS::Serverless::SimpleTable

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SAM CLI – Local API Gateway / Lambda
 CLI tool for local testing of
serverless apps
 Works with Lambda functions and
“proxy-style” APIs
 Response object and function logs
available on your local machine
 Supports all native runtimesgithub.com/awslabs
aws-sam-local

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SAM CLI – Local API Gateway / Lambda
https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-sam-cli-install.html

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© 2017, Amazon Web Services, Inc. or its Affiliates. All rights reserved.
AWS X-Ray

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Orchestration and State Management
Building blocks for serverless applications
AWS Lambda
Amazon DynamoDB
Amazon SNS
Amazon API Gateway Amazon SQS Amazon Kinesis
Amazon S3
API Proxy and GraphQL Messaging and Queues Analytics
Monitoring and Debugging
Compute Storage Database
AWS X-RayAWS Step Functions Amazon Cognito
User Management and IdP
AWS AppSync Amazon Athena
AWS Lambda@Edge

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AWS X-Ray
 Review request behavior
 Discover application issues
 Improve application performance
 Ready to use with AWS
 Designed for a variety of applications

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How do I get more visibility of my App?

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How do I get more visibility of my App?
const AWSXRay = require('aws-xray-sdk-core');
# Wraps AWS SDK and trace subsequent AWS Services
const AWS = AWSXRay.captureAWS(require('aws-sdk'));
const dynamoDb = new AWS.DynamoDB.DocumentClient();
const sqs = new AWS.SQS();
# Wraps HTTP calls made
const https = AWSXRay.captureHTTPs(require('https'));

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Resources

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Landing pages
 aws.amazon.com/serverless
 github.com/awslabs/serverless-application-model
 github.com/awslabs/aws-sam-cli
 github.com/aws-samples/aws-serverless-workshops
 aws.amazon.com/<service-name>
 aws.amazon.com/<service-name>/faq
 aws.amazon.com/<service-name>/pricing

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Whitepapers
Serverless Architectures
with AWS Lambda
November 2017
bit.ly/2zVvp0w
Optimizing Enterprise
Economics with
Serverless
Architectures
October 2017
bit.ly/2hQdy44
Serverless Applications
Lens
November 2017
bit.ly/
serverless_lens

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Recorded serverless breakout sessions
re:Invent 2017 –
Serverless breakout sessions
bit.ly/serverless_playlist17

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© 2018, Amazon Web Services, Inc. or its Affiliates. All rights reserved.
Thank you
dirk.froehner@amazon.de