What_is_serverless_anyway_.pdf

This is a talk a gave at JoziJS in Johannesburg about serverless functions.

Transcript

1. What is serverless anyway? Peter-John Welcome @pjapplez Mobile Engineering Lead
2. About me
3. Before Serverless • On Premise • IaaS • Paas
5. What is serverless? • invisible infrastructure. • auto scaling. • Event driven. • pay for what you use.
6. Serverless Providers
7. What is serverless functions? • Serverless Environment (Backend Code) • Microservice • Code as infrastructure
9. Why serverless functions? • Load balancing and scaling is not really that important as a developer. • Authenticated access to providers services (Google ML API’s/ Microsoft Cognitive Services) • Fully managed system
10. Types of functions
11. What is serverless good for? • Web hooks • Creating API's • Callbacks from 3rd party services • Lightweight data transfers • IOT
12. Languages
13. Google Cloud functions
14. Cloud Functions Integration • Http Endpoints • Firebase host for dynamic serving of content • Crashlytics • Cloud pub/sub • Firebase Auth,Cloud Messaging, Analytics ,Cloud Storage, RT Database , Firestore
16. Time Demo $ npm install -g firebase-tools $ npm install --save gcloud $ npm i -g azure-functions-core-tools https://aws.amazon.com/lambda/
17. Runtime configuration
18. Unit Testing https://firebase.google.com/docs/functions/unit-testing
19. Running Locally $ firebase serve --only functions, hosting (Https endpoint functions) $ firebase experimental: functions : shell --port 11111 ( function triggers- Firebase)
20. Running on CI/CD https://circleci.com/docs/2.0/deployment_integrations/#firebase
21. Resources to get started • https://www.youtube.com/watch?v=2ZGYLblGZQA • https://www.youtube.com/watch?v=JenJQ6gc14U • https://www.youtube.com/watch?v=837zPKooaaU • https://cloud.google.com/functions/ • https://aws.amazon.com/lambda/ • https://docs.microsoft.com/en-us/azure/azure-f unctions/ • https://serverless.com/blog
22. Thanks! Contact me: https://medium.com/@pjwelcome @pjapplez pjwelcome@gmail.com Peter-johnwelcome.co.za https://github.com/pjwelcome