Introduction to serverless - workshop

Serverless has become a very hot topic over the last years, and rightly so. Not only does it make web apps and services incredibly easy to build and maintain, but also comes with great inherent scalability.

During this workshop, you will learn more about serverless computing, how simple yet powerful it is, and how it supports a great part of DAZN's streaming platform.

Transcript

1. 1 INTRODUCTION TO SERVERLESS Based on examples featuring Serena Williams Sara Gerion, Raquel Carvalho, Fernanda Machado
2. 2 ▪ Understand what serverless means Goals
3. 3 ▪ Understand what serverless means ▪ The pros and cons of serverless Goals
4. 4 ▪ Understand what serverless means ▪ The pros and cons of serverless ▪ Use cases for serverless architectures Goals
5. 5 ▪ Understand what serverless means ▪ The pros and cons of serverless ▪ Use cases for serverless architectures ▪ Gain insights over serverless AWS services Goals
6. 6 ▪ Understand what serverless means ▪ The pros and cons of serverless ▪ Use cases for serverless architectures ▪ Gain insights over serverless AWS services ▪ Learn how to create an API using serverless services Goals
9. 9 So what is serverless?
10. 10 Serverless is a cloud computing execution model
11. 11 Infrastructure as a Service
12. 12 So if you want to start a business... You now are able to choose between
13. 13 On-premises
14. 14 Cloud Service Providers
16. 16 AWS region eu-central-1 (Frankfurt) https://infrastructure.aws/
17. 17 But hold on. Doesn’t serverless suggest that there are no servers involved?
18. 18 The word serverless is “misleading”. There are actual servers powering your services. But you don’t need to care about them.
19. 19 ▪ It’s basically a code runner ▪ Your code is a function ▪ Cloud providers take care of almost everything else. You just need to provide the code! ▪ Examples: AWS Lambda, Google Cloud Function, Azure function Function as a Services (FaaS) pattern
20. 20 ▪ Lambda - a “code runner” ▪ API Gateway - AWS HTTP proxy ▪ S3 - AWS storage ▪ DynamoDB - AWS NoSQL database ▪ SQS - AWS queueing system ▪ SNS - AWS messenger Notable serverless AWS services
21. 21 If they are all serverless, but have different purposes, what do they have in common?
22. 22 Pros Cost-effective
23. 23 Pros Highly-scalable
24. 24 Pros Resilient
25. 25 Pros Logs and metrics “for free”
26. 26 Cons You pay what you use... So be mindful of the usage
27. 27 Cons Hard limitations
28. 28 Cons Some tricky implementation details (read the docs!)
29. 29 What we will do today? We will build a scalable, resilient web app in very few steps. Using only serverless services.
30. 30 What are we going to build?
31. 31 ▪ Get your laptop, feel free to use the conference’s WiFi: WiFi name: EWIT2019 WiFi password: wintechseries ▪ Go to: https://github.com/sgdazn/introduction-to-serverless-workshop ▪ Follow the instructions in the readme located in the folder: 01_Console Let’s start!
32. 32 Workshop time!
33. 33 Let’s recap
34. 34 ▪ It is useful to build scalable, resilient services ▪ It’s cost effective (when applied smartly) ▪ It’s faster when you want to focus on the business logic only ▪ AWS takes care of a lot of things, but read the documentation! What did we just learn about serverless?
35. 35 ▪ Provisioning (CloudFormation, Terraform) ▪ Deploying (CI/CD pipelines) ▪ Being familiar with other useful services: DynamoDB, S3, SQS, SNS... What is next to learn?
36. 36 ▪ AWS documentation https://docs.aws.amazon.com ▪ AWS serverless repositories https://serverlessrepo.aws.amazon.com/applications ▪ Related subreddits https://www.reddit.com/r/aws https://www.reddit.com/r/devops Useful resources
37. 37 Thank you