MOBILE APP FOR ACME INC. by Sean Hull - Cloud Solutions Architect -

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1 MOBILE APP FOR ACME INC. by Sean Hull - Cloud Solutions Architect - sean@iheavy.com

2 ABOUT SEAN HULL iheavy.com/blog about.me/hullsean github.com/hullsean

3 NEWSLETTER - SIGNUP! iheavy.com/signup cloud topics startup focused innovation inspired!

4 WHAT DO I DO? Boutique Professional Services Advisor, Fractional CTO 10+ years with startups Devops + Data automation AWS & GCP Clouds Terraform + Ansible Serverless Lambda, Python MySQL, Postgres, Redshift

5 If you play it safe, no one will ever know who you are. Steve Jobs

6 SHORT HISTORY OF HOSTING 90 s - on-premise server closet 00 s - managed hosting 10 s - cloud hosting, aws, gcp Docker containers Serverless functions

7 ON-PREMISE HOSTING full control need team of hardware experts need equipment, backups

8 DATACENTER HOSTING Professionally managed Frees you to run your business Still need operations team Still slow to provision

9 CLOUD HOSTING On-demand compute Pay for what you use Stop & save unused servers Cost by the hour Need operations team

10 DOCKER CONTAINERS Supports microservices Dockerfile defines server config Need operations team

11 SERVERLESS - FUNCTIONS Worry only about your code Deploy directly to the cloud Event-based No operations team

12 20TH CENTURY POWER Nicholas Carr, Edison, Google Henry Burden to 1900 Before distributed power grid Backoffice: waterwheel engineers Replacement waterwheel parts! Parallel today s cloud computing

13 PRODUCT REQUIREMENTS Upload images from Web Image editing w text memes Track popular phrases Track top-10 by views Monthly archiving Scales easily + low cost

14 Plans are nothing; planning is everything Dwight D. Eisenhower

15 TRADITIONAL ARCHITECTURE Many moving parts Full control over servers Customer managed Customer patched Customer monitored

16 CUSTOMER MANAGED SERVERS Spinup instance Install OS Install packages Manage dependencies Manage updates Monitor Manage performance

17 Remember that meltdown patch, and the need to patch all the hosts and containers, but nothing to patch for Lambda? Adrian Cockroft, VP Cloud Architecture Strategy

18 SERVERLESS ARCHITECTURE 1. User opens app 2. Request hits endpoint 3. User Login - cognito, auth0, okta, onelogin 4. Functions - upload, edit, albums, popular 5. Store user, image, text data 6. Store raw, edited & historical images 7. CDN - cache photos at edge 8. Separate AWS account for Meme app 9. CNAME entry acme.io -> endpoint

19 #2 API ENDPOINT Paths to your functions GET method Post method Put method Patch, Delete

20 #3 USER LOGIN Security assertion markup SAML Auth0 Cognito OneLogin Active Directory Federated Svc

21 #4 SERVERLESS LAMBDA Code in Python, nodejs, java, C# Respond to events S3, SNS, CF, API Gateway IOT, Alexa, SES, SW, Kinesis Log messages to CloudWatch Use aliases & versions

22 #4 LAMBDA: HANDLER.JS Code in Python, nodejs, java, C# Respond to events Log messages to CloudWatch Use aliases & versions

23 #4 LAMBDA: BESTENDPOINT.JS Modularize your business logic Build unit tests for product code Easier for testing locally Supports code reuse

24 #4 LAMBDA: SERVERLESS.YML Manifest defines your application Outlines API gateway Specifies functions S3 buckets, Dynamodb tables IAM users, etc

25 #4 SERVERLESS LIMITATIONS Account wide API limits Memory limits Max 5 minutes runtime More difficult to troubleshoot How to test performance? AWS X-Ray instrumentation

26 #5 DATASTORE - DYNAMODB Configure table-by-table store users & login info store image names & paths store text & meme data

27 #6 S3 STORAGE FOR IMAGES object storage original raw images edited images thumbnails historical copies lifecycle versions

28 #7 CLOUDFRONT CDN Cache images at edge Speedup user experience Distribute globally Integrates with app origin Integrates with S3 origin

29 #9 ROUTE53 FOR DNS Domain name services Named after port 53 Add CNAME for your domain References API Endpoint

30 THOUGHTS ON APP What type of browsers are supported? What type of formats need support? Do we need multi-language support? How do you measure active users?

31 THOUGHTS ON INFRA Are your users global or in one region? What uptime guarantees are required? Can we lose images (user re-uploads)? Ex: Instagram & Twitter lose comments sometimes

32 THOUGHTS ON TEAM Will Acme Inc. support finished app? Does Acme Inc. have devops expertise? How about lambda & serverless? Does Acme Inc know technology X? Do you need to support multi-cloud?

33 ABOUT SEAN HULL iheavy.com/blog about.me/hullsean github.com/hullsean

34 NEWSLETTER - SIGNUP! iheavy.com/signup cloud topics startup focused innovation inspired!