Building Everything on Serverless

Serverless is a form of cloud computing that’s changing the way software is delivered. The talk introduces key characteristics of serverless and serverless apps, how serverless compute works, and then dives into a live demo.

Video: https://www.youtube.com/watch?v=BRFd-PHyu7g&t=324s

Transcript

1. @n_bass Building Everything on Serverless
2. @n_bass λ
3. @n_bass Cloud App / Hobby Projects Enter Serverless + Serverless Compute Examples Under the Hood AWS Lambda Serverless Framework Live Demo
4. @n_bass How do you write + run cloud apps?
5. @n_bass Code Test Deploy Monitor Provision Infrastructure
6. @n_bass Your Code! Virtual Machine (or maybe PaaS) ? Your Code! Database/Datastore Logs Cron HTTP/S SSH
7. @n_bass Infrastructure and Management
8. @n_bass Infrastructure and Management
9. @n_bass Infrastructure is an implementation detail.
10. @n_bass Developers should care about only their code.
11. @n_bass Drop the infrastructure.
12. @n_bass Code Test Deploy Monitor Provision Infrastructure
13. @n_bass Idle Code == Idle Servers
14. @n_bass Serverless?
15. @n_bass HTTP API for Web/Mobile App HTTPS Trigger Event Your Code! Function Database/ Datastore Services Other Functions, APIs APIs Logs, … Monitoring
16. @n_bass Serverless == BaaS
17. @n_bass Serverless Compute == FaaS
18. @n_bass Serverless Function
19. @n_bass Serverless (BaaS) Serverless Compute (FaaS) Serverless Function
20. @n_bass Serverless is another abstraction.
21. @n_bass FaaS PaaS IaaS
22. @n_bass But there are servers?!?!?!
23. @n_bass Good Use Cases
24. @n_bass HTTP API for Web/Mobile App HTTPS Call Event Your Code! Function Database/ Datastore Service
25. @n_bass Example: ACM@UC Slack Badge
26. @n_bass Scheduled Event Event Your Code! Function Messaging, Reporting, etc. API Automated Tasks Data API
27. @n_bass New Image/ Video in S3 Bucket Event Your Code! Function S3 Bucket Service Image and Video Resizing
28. @n_bass Bad Use Cases Persistent Connections, State Sharing
29. @n_bass Building Everything on Serverless
30. @n_bass Building Everything on Serverless Some Things
31. @n_bass Containers
32. @n_bass Simple Function: Availability Event Instance Function HTTPS GET Instance Instance Instance https://martinfowler.com/articles/serverless.html
33. @n_bass Containers Package code into an image that can be run (almost anywhere)
34. @n_bass Container Reuse aws.amazon.com/blogs/compute/container-reuse-in-lambda/
35. @n_bass
36. @n_bass HTTP Call Event Stream S3 Bucket Database Queue (SQS) Logs And more…
37. @n_bass Cost Serverless Computing for College Students?
38. @n_bass $ = Number Requests + Compute Time (gb-sec)
39. @n_bass Pricing on AWS Lambda • $0.2 per 1 million requests • $0.00001667 per gb-sec
40. @n_bass Sample Function 1 million requests
 800ms per request
 256mb (0.25gb) memory -> $0.2 -> 1M * 0.8sec -> 0.8M sec -> 0.8M sec * 0.25gb = 200,000 gb-sec
 200,000 * $0.00001667 = $3.34
 Total = $0.2 + $3.34 = $3.54/month
41. @n_bass AWS Free Tier aws.amazon.com/free/
42. @n_bass λ
43. @n_bass Serverless Framework (serverless.com)
44. @n_bass Serverless != Serverless Framework
45. @n_bass
46. @n_bass Serverless Framework is Cloud Agnostic
47. @n_bass Why A Framework?
48. @n_bass Live Demo
49. @n_bass Simple HTTP Endpoint (hello world) Event Our Code! Respond 200 OK Function HTTPS GET
50. @n_bass Scheduled Event: Weather Report Scheduled Event (1d) Event Our Code! Get data, then send email Function darksky.net API API AWS SES API
51. @n_bass Building Some Things on Serverless
52. @n_bass Resources • serverless.com • serverless.com/framework/docs/providers/aws/guide/quick-start/ • aws.amazon.com/lambda • aws.amazon.com/free • cloud.google.com/free • github.com/serverless/examples • github.com/anaibol/awesome-serverless • martinfowler.com/articles/serverless.html • www.youtube.com/watch?v=Y6B3Eqlj9Fw • github.com/openfaas/faas