1. FaaS на AWS очима дотнетчика
Taras Romanyk
Technical Lead at Conscensia

2. What is Serverless? Run code without managing operating system
Horizontal scaling
Reduce operation cost
Reduce development cost
Improved Latency and Geolocation
No specific framework
Limited in execution duration
Startup latency and “cold starts”
Multitenancy problems

3. What isn’t Serverless? PaaS Containers Stored Procedure as a Service
If your PaaS can efficiently start instances in 20ms that run for half a second, then call it serverless.
PaaS – scaling per request
Container – container shape and size management, AWS Fargate
SP – hard to test, specific language, deployment

4. Platforms Azure Functions Amazon - AWS Lambda Functions
Google Cloud Functions
IBM Cloud Functions (based on Apache OpenWhisk) 
Oracle Cloud Fn 
Alibaba - Function Compute
DEMO!!!!!!!

5. How to start AWS Free Tier 12 month free Always free
Setup a billing alert
Enable price notification

6. Supported languages & platforms
Node.js (4.3/6.10/8.10)
Python (2.7/3.6)
Java (8)
.NET Core 1.0/.NET Core 2.0
Go (1.x)

7. We are using... Node.js (4.3/6.10/8.10) Python (2.7/3.6) Java (8)
.NET Core 1.0/.NET Core 2.0
Go (1.x)

8. Lambda execution model
Synchronous (push)
Asynchronous (event)
Stream-based

9. Use cases API gateway + lambda + DynamoDB Event on media file load
Event on image processing
Analytics?

10. AWS integrations
18 geographic Regions + 4 in progress
98 services

11. AWS Lambda Limitation
3008 MB allocated CPU
5 min execution

12. Step functions Orchestrate AWS Lambda functions
It is like Azure durable function
AWS Step Functions is part of the AWS Serverless Platform, and makes it simple to orchestrate AWS Lambda functions for serverless applications.

13. Pitfalls: cold start Warm in background Warm with CloudWatch
JavaScript, Python
Remove access to VPC
Warm with CloudWatch smart warm, background warm, JS, Python

14. Pitfalls: price for API Gateway

15. How to code on Python Boto 3 Moto: Mock AWS Services LocalStack
Placebo
Cloud9
- decorator
- Develop and test your cloud apps offline
- tool for mocking external API’s in python applications.

16. AWS SDK for .NET AWS SDK for .NET AWS SDK for Unity
AWS SDK for Xamarin

17. AWS Toolkit for Visual Studio
AWS Lambda Project (.NET Core)
AWS Serverless Application (.NET Core)
NodeJS

18. Pitfall: bad design
Default value in C# deployment
Flow management

19. AWS Serverless Application (.NET Core)
CloudFormation
SAM (Serverless Application Model)
Xunit
YAML/JSON
serverless framework
Terraform
DEMO!!!!!

20. Deployment
All at once
Blue/Green
Canaries/Linear
Traffic shifting

21. Q&A Taras Romanyk http://rredcat.blogspot.com/ rredcat@gmail.com