Test-driven FaaS with Docker

Break out monolithic applications into a plenty of functions can make us lose sight of their "health status": fixing bugs, identifying leaks, running root cause analysis of problems becomes really complicated and expensive for the team.

This session will allow you to take advantage of Docker tecnology to create a local environment where the main AWS components are emulated offline in order to facilitate the development phase and make the integration tests painless and effective.

Transcript

1. How to develop and test efficiently in a Serverless World
2. Agenda ❏ Introduction ❏ The Serverless paradigm ❏ FaaS explained ❏ Testing in a FaaS world ❏ Demo ❏ Q&A
3. #1 The Serverless Paradigm
5. Next Service-Full Cloud Data Code Events No more server concerns, but only events, data and code in a fully managed way.
6. #2 Function as a Service explained (Lambda)
7. ...run code based on events without managing servers
8. 1 request 2 find 3 load 4 exec 5 response 0 deploy
9. Understanding AWS lambda costs Factors involved ❏ Number of executions ❏ Memory usage ❏ CPU time Cost components ❏ Invocations ❏ GB-s
10. #3 Testing in a FaaS World
12. Build the right Feedback Loop: fast, reliable, isolating failures
13. Test Automation Pyramid
14. Feedback loop granularity speed granularity reliability granularity failure isolation
15. Abstractions for 3rd party implementations hide important details about the implementation itself
16. roles and policies MUST MATCH across AWS accounts
17. #4 Demo
18. GraphQL-Vault API
19. Automate integration tests and deployments just like any other piece of software test locally commit code build (packaging) deploy to test stage run automated tests promote to production development
20. Nicola Baldi @NicolaBaldi https://github.com/naighes/ Luca Milan @fewbit https://github.com/lucamilan/ Q&A