Managing the deployment of code to multiple AWS Lambda functions and updating your API Gateway methods can be manual and time consuming. In this session, we will show you how to build a deployment pipeline to AWS Lambda using AWS CodePipeline, a continuous delivery service based on Amazon’s internal release automation tooling. We will discuss how to use versioning, which enables you to better manage the different variations of your Lambda functions and API Gateway methods in your development workflow (e.g., development, staging, and production). We will walk through how to automate the entire release process of your application from development, to staging, and finally to production; performing automated integration tests at each stage.

1. © 2016, Amazon Web Services, Inc. or its Affiliates. All rights reserved.
Randall Hunt, Developer Evangelist at AWS
October 24, 2016
Managing the Continuous
Delivery of Code to AWS
Lambda

3. Agenda
 CD Overview
 Key Services and Features
 Things to be Aware Of
 Tips & Tricks
 What’s Next?

4. Continuous Delivery Overview

5. Continuous Delivery Overview
Source Build Test Production
Continuous integration
Continuous delivery
Continuous deployment

6. Continuous Delivery Benefits
Improve developer
productivity
Find and address
bugs quickly
Deliver updates fasterAutomate the software
release process

7. Scope of this Webinar

8. Continuous Delivery Overview
Source Build Test Production
Continuous integration
Continuous delivery
Continuous deployment

9. Our Application – A Serverless Website
AWS Lambda
Functions
web browser
Amazon S3
Dynamic Content
Amazon API
Gateway
Amazon
DynamoDB
Overview of building this application:
http://bit.ly/1MJb0O2
Static Content

10. Our Role
AWS Lambda
Functions
web browser
Amazon S3
Dynamic Content
Amazon API
Gateway
Amazon
DynamoDB
Static Content

11. Our Goal
Continuous Delivery pipeline to automate deployment and
release of new Lambda function code to non-Production
environments.

12. Key Services and Features

13. AWS CodePipeline

14.  Continuous delivery service for fast and
reliable application updates
 Model and visualize your software
release process
 Builds, tests, and deploys your code
every time there is a code change
 Integrates with 3rd party tools and AWS
AWS CodePipeline

15. AWS CodePipeline Benefits
Improved quality
Rapid delivery Get started fast
Configurable workflow Easy to integrate

16. Source
Source
GitHub
Build
JenkinsOnEC2
Jenkins
Deploy
JavaApp
Elastic Beanstalk
PipelineStage
Action
Transition
CodePipeline
MyApplication

17. Source
Source
GitHub
Build
JenkinsOnEC2
Jenkins
Deploy
JavaApp
Elastic Beanstalk
NotifyDevelopers
Lambda
CodePipeline
MyApplication
Parallel actions

18. Source
Source
GitHub
Build
JenkinsOnEC2
Jenkins
Deploy
JavaApp
Elastic Beanstalk
NotifyDevelopers
Lambda
TestAPI
Runscope
CodePipeline
MyApplication
Sequential actions

19. AWS service integrations
Source Invoke Logic Deploy
 AWS Elastic Beanstalk AWS CodeCommit
 Amazon S3  AWS CodeDeploy
 AWS Lambda

20. We have a strong partner list, and it’s growing
Source Build Test Deploy

21. Extend AWS CodePipeline Using Custom Actions
Update tickets Provision resources
Update dashboards Send notifications Security scan
Mobile testing

22. 2. Perform Job
1. Invoke Lambda function
Source
Source
GitHub
Build
JenkinsOnEC2
Jenkins
Deploy
PublishVersion
AWS Lambda
MyApplicationCodePipeline
AWS
Lambda
3. PutJobSuccessResult
AWS Code Pipeline lets you invoke Lambda
functions at each stage.

23. CodePipeline Overview
Job/Stage/Action Metadata
• UserParameters
• Input/Output Artifacts
• Artifact Credentials
{
"CodePipeline.job": {
"id": "8eb1c985-8031-4186-af7e-fdaa049e0a77",
"accountId": "xxx",
"data": {
"actionConfiguration": {
"configuration": {
"FunctionName": "PublishNewLambdaVersion",
"UserParameters": "function=LambdaFunctionName"
}
},
"inputArtifacts": [
{
"location": {
"s3Location": {
"bucketName": "codepipeline-us-east-1-xxx",
"objectKey": "Demo-Pipeline-Test/FunctionSo/M4BQFoQ.zip"
},
"type": "S3"
},
"revision": null,
"name": "FunctionSourceBundleName"
}
],
"outputArtifacts": [
{
"location": {
"s3Location": {
"bucketName": "codepipeline-us-east-1-xxx",
"objectKey": "Demo-Pipeline-Test/TestExecut/vG2GUh3"
},
"type": "S3"
},
"revision": null,
"name": "TestExecutionRequest"
}
],
"artifactCredentials": {
"secretAccessKey": "xxx",
"sessionToken": "xxx",
"accessKeyId": "xxx"
}
}
}
}

24. Our Pipeline
• Built code package lands in S3.
• Lambda Functions all the way down.
• Publish new Function version
• Integration Test
• Release function to environment
• Rollback if necessary

25. Creating a Pipeline via the CLI
{
"roleArn": "IAM-ROLE-ARN-FOR-
CODEPIPELINE-SERVICE",
"stages": [
{
"name": "Source",
"actions": [
{
"inputArtifacts":
[],
"name": "Source",
"actionTypeId": {
"category":
"Source",
"owner": "AWS",
"version": "1",
"provider": "S3"
},
"outputArtifacts": [
{
"name":
"FunctionSourceBundleName"
}
],
"configuration": {
"S3Bucket":
"SRC-BUCKET",
"S3ObjectKey":
"SRC-KEY.zip"
},
"runOrder": 1
}
]
},
{
"name": "dev",
"actions": [
{
"inputArtifacts": [
{
"name":
"FunctionSourceBundleName"
}
],
"name": "Publish-
Dev-Version",
"actionTypeId": {
"category":
"Invoke",
"owner": "AWS",
"version": "1",
"provider":
"Lambda"
},
"outputArtifacts": [
{
"name":
"TestExecutionRequest"
}
],
"configuration": {
"FunctionName":
"PublishNewLambdaVersion",
"UserParameters":
"function=LambdaFunctionNameToPublish"
},
"runOrder": 1
}
]
}
],
"artifactStore": {
"type": "S3",
"location": "BUCKET-NAME-THAT-
MEETS-CODEPIPELINE-REQUIREMENTS"
},
"name": "YOUR-PIPELINE-NAME"
}
aws codepieline create-pipeline --pipeline file://the-below.json

26. AWS Lambda

27. AWS Lambda –
CD Relevant Features

28. Function Versions
• Version your functions
• “Deployment” history
• Export code
• Can be used in parallel to each other
• Code as Infrastructure

29. http://docs.aws.amazon.com/lambda/latest/dg/API_UpdateFunctionCode.html

30. Function Aliases
• Assigned to function versions
• Can be reassigned
• Decouple clients from versioning
• Think of changing an alias as the
“Release” step, can enable Blue-Green
deployments.

31. Amazon API Gateway

32. Amazon API Gateway –
CD Relevant Features

33. API Stages

34. Stage Variables
Combine API Stages with Lambda Function Aliases

35. API Gateway Swagger Import/Export APIs

36. Live Demo

37. Live Demo – Our Pipeline
Amazon
DynamoDB
AddItem
PublishNewVersion
TestNewVersion
ReleaseAndValidate
Amazon API
Gateway
AddItem-Test
AddItem-ApiTest

38. Things to be Aware of

39. Things to be Aware of
AWS Lambda
• Different aliases assigned
to same version share
containers. Function code
should be alias-aware.
• New version means new
containers, remember to
pre-warm if needed.
• Lambda source code must
change for new version to
be published.
Amazon API Gateway
• Stage variable changes do
NOT require an API
deployment. Saving a
stage variable change
takes effect immediately.
AWS CodePipeline
• Job will hang until timeout,
unless your Actions make
the proper
Success/Failure API call.
• Transitions between
stages are Enabled OR
Disabled. No concept
today of manually
permitting one job to
proceed.
• Many capabilities via
CLI/API not yet visible in
the console.

40. Tips & Tricks

41. Tips & Tricks
 CodePipeline Success/Failure Callback
 Implement failure first - Think “Test Driven Development”
 Fan-out testing – have a single Lambda “test suite” function that
invokes several test-case functions.
 Continuation Tokens – use to extend Lambda-based actions
beyond 5 minutes.
 API Versioning – don’t couple your Lambda function versions to
API versions (i.e. api.example.com/v1/prod). Would be disruptive
to your clients and discourage rapid Lambda function changes.

42. Tips & Tricks Contd.
 Baby Steps toward CD – Use scheduled Lambda function to
enable/disable stage transition nightly.
 Surround with CloudFormation
 AWS CodePipline + AWS Lambda + Amazon API Gateway are all
supported now!
 Don’t rely on $LATEST for Lambda functions in a testing/production
environment – take control of testing/blessing versions and aliases.

43. Great Lambda Frameworks
• Chalice
• Zappa
• Express

44. What’s next?

45. Expand your CI/CD Scope!
 CodeCommit Integration
 Static Code Analysis (FindBugs, JSHint, Pylint)
 Automated Build – (Jenkins, Solano CI, or your own!)
 CloudWatch Events – Success/Failure Detection & Action

46. © 2016, Amazon Web Services, Inc. or its Affiliates. All rights reserved.
All attendees will receive a special giveaway gift!
Please join us for the
AWS DevDay Networking Reception
5:00 - 6:30 PM
JW Grand Foyer

47. Thank You!

48. We’re Hiring!
Email us at
amzn-interest@amazon.com