CODE, TEST, DEPLOY, REPEAT

Continuous delivery, deployment, integration: a lot of buzzwords of our times start with "continuous". But do they exist in real life? Or is this just fantasy? In this session, I'll show how real and impactful CI/CD can be by telling you the story of how we are building "continuous stuff" at VONQ. It's a story about tests, pipelines, automation and feature toggles, but, more importantly, about changing mindsets.

We'll go through each of the stages - coding, testing, deploying (and delivering) - and we'll find out (spoiler!) why the road to continuous delivery is valuable even if you're not going to deploy in production many times per day.

Transcript

1. CODE TEST DEPLOY REPEAT Antonello D'Ippolito @antodippo
2. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 2 CONTINUOUS INTEGRATION CONTINUOUS DELIVERY CONTINUOUS DEPLOYMENT
3. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 3 HELLO! Antonello D'Ippolito @antodippo backend engineer @
4. 1. CODE 4
5. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 5 FAST AND TINY PRs CODE REVIEWS PAIR PROGRAMMING CODE
6. 6 FEATURE TOGGLES
7. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 7 if (toggleIsOn) { $this->newFancyFunctionality(); } else { $this->oldFunctionality(); } FEATURE TOGGLES
8. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 8 FEATURE TOGGLES https://www.martinfowler.com/articles/feature-toggles.html
9. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 9 DECOUPLE TOGGLE FROM DECISION CENTRALIZE THE LOGIC AVOID CONDITIONALS REMOVE TOGGLES FEATURE TOGGLES
10. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 10 • github.com/qandidate-labs/qandidate-toggle • github.com/qandidate-labs/qandidate-toggle-bundle • github.com/qandidate-labs/qandidate-toggle-api FEATURE TOGGLES qandidate/toggle
11. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 11 FEATURE TOGGLES qandidate/toggle ALWAYS ACTIVE ALWAYS INACTIVE CONDITIONALLY ACTIVE
12. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 12 FEATURE TOGGLES qandidate/toggle // Create the ToggleManager $manager = new ToggleManager(new InMemoryCollection()); // A toggle that will be active when the user id is less than 42 $operator = new LessThan(42); $condition = new OperatorCondition('user_id', $operator); $toggle = new Toggle('toggling', array($condition)); // Add the toggle to the manager $manager->add($toggle); // Create and check a new context for a user with id 42 $context = new Context(); $context->set('user_id', 42); var_dump($manager->active('toggling', $context)); // false
13. 2. TEST 13
17. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 17 SMOKE TESTS USER ACCEPTANCE TESTS (BEHAT) TEST UI INTEGRATION UNIT INTEGRATION & COMPONENT TESTS (BEHAT, PHPUNIT) UNIT TESTS (PHPSPEC)
18. 3. DEPLOY 18
19. “ Antonello D'Ippolito CODE TEST DEPLOY REPEAT 19 IF IT HURTS DO IT MORE OFTEN DEPLOY
20. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 20 DEPLOY
21. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 21 EVERYONE CAN DEPLOY DEPLOY
22. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 22 PIPELINES (JENKINS) DEPLOY SETUP PROJECT TEST SUITES MISC. CHECKS BUILD ARTIFACT SETUP PROJECT TEST SUITES MISC. CHECKS BUILD ARTIFACT DEPLOY ACCEPTANCE SETUP PROJECT TEST SUITES MISC. CHECKS BUILD ARTIFACT DEPLOY PRODUCTION SMOKE TESTS PUSH MERGE TAG ACC. TESTS
23. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 23 MEASURE & MONITOR EVERYTHING DEPLOY • API CALLS RESPONSE TIME • CONTROLLERS LOADING TIME • CRONS EXIT STATUS • ERROR LOGS • ...
24. 4. DELIVER 24
25. “ Antonello D'Ippolito CODE TEST DEPLOY REPEAT 25 DECOUPLE DEPLOY FROM RELEASE DELIVER
26. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 26 DELIVER A/B TESTING CANARY RELEASE
27. 5. YES, BUT WHAT'S IN IT FOR ME? 27
28. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 28 IT SHARPENS YOUR DEVOPS SKILLS
29. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 29 STRESS FREE DEPLOYS
31. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 31 FAST FEEDBACK • FROM CI • FROM MONITORING • FROM USERS
32. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 32 YOU'RE GONNA FAIL. THE PROBLEM IS HOW SOON
34. “ Antonello D'Ippolito CODE TEST DEPLOY REPEAT 34 EL CAMINO ES LA RECOMPENSA Oscar W. Tabárez
35. “ Antonello D'Ippolito CODE TEST DEPLOY REPEAT 35 You can’t do it without automating your entire build, deploy, test, and release process. You can’t do it without a comprehensive, reliable set of automated tests. You can’t do it without writing system tests that run against a production-like environment. Continuous Delivery - Jez Humble, David Farley
36. “ Antonello D'Ippolito CODE TEST DEPLOY REPEAT 36 That’s why, even if you can’t actually release every set of changes that passes all your tests, you should aim to create a process that would let you do so if you choose to. Continuous Delivery - Jez Humble, David Farley
37. Antonello D'Ippolito CODE TEST DEPLOY REPEAT 37 THANKS! (No canaries were harmed in the making of this talk) Antonello D'Ippolito @antodippo