Cloud and Devops at ticketea

Talk at Devops Azure Day Madrid 2015 about devops and cloud

1. Cloud and Devops at ticketea Jose Ignacio Galarza, @igalarzab CTO
2. create tech solutions to simplify and enrich the way events are managed and attended
3. ticketea Ecosystem
7. ticketea Who we are? @esanchezm @JavierHdez3 @maraujop @igalarzab @sullymorland @patoroco edu @imanolcg @RafaRM20 @iamcarlosedo @andrea_mgr @Mc_Arena_pr @javitxudedios @Maquert @gnufede @willyfrog_
8. ticketea Team ✤ 12 developers ✤ 3 designers ✤ 1 QA
9. cloud
11. ticketea Why the cloud? ✤ Offer high-availability despite of load-spikes. ✤ Scale from 3 servers to 350 in minutes. ✤ Access to awesome services provided by your IaSS. ✤ Be more cost efficient.
12. ticketea Why the cloud? ✤ Easier to be fault tolerant. ✤ They have a huge team improving always their service. ✤ Incredible uptime (some of them with 99.999999999%).
13. ticketea Why the cloud? IaaS to PaaS
14. Cloud provider Ticketea
15. ticketea Pitfalls ✤ Everything can fail… everything. Have a good plan B. ✤ A plan B isn't a plan B, until is tested. ✤ Pre-heat everything before big events. ✤ Read about your IaSS in forums/email groups. ✤ Try to distribute your machines to avoid thunderbolts ;)
16. architecture
17. ticketea server
18. ticketea Our architecture
19. ticketea Our architecture
20. ticketea Our architecture
21. ticketea Our architecture
22. ticketea Our architecture
23. ticketea Our architecture
24. ticketea servers
25. ticketea The multilith
26. ticketea Distributed systems ✤ Granular failing. ✤ Avoid single point of failure. ✤ Easy code maintainability ✤ Choose the best tech for each project. ✤ Scale the team easier.
27. ticketea Distributed systems ✤ Hard to deploy. ✤ Hard to see the whole picture. ✤ More complexity: easy to fail. ✤ When shit happens: you need a plan B.
28. don’t panic, we’re devops!
29. development
30. ticketea Team ✤ 12 developers ✤ 3 designers ✤ 1 QA ✤ 0 sysadmin
31. ticketea Team no specific devops team
32. understand your stack
33. ticketea Development cycle
34. ticketea Development keys ✤ Code reviews in every pull request. ✤ Continuous integration with a strong test suite. ✤ Cook your own receipts. ✤ One-click deployment. ✤ “Continuous” delivery. (not always)
35. and… easy rollbacks ;)
36. ticketea Deploying code ✤ We’ve changed between a few models, but finally: 1. Create a complete new environment in prod machines. 2. Deploy your code there. 3. Extract one machine from the load-balancer. 4. Create a golden-image
37. ticketea Deploying code ✤ Atomic deploys. ✤ 0s-downtime deploys. ✤ Easy rollback to the last N versions. ✤ Money-cost friendly ;) ✤ Insanely fast to scale machines when needed.
38. ticketea The Rat ‘devops’ race API Heracles Odin Frontend Chef Puppet Ansible Thor Caronte Ansible
40. ticketea Production vs Development environments ✤ Using the same ansible roles ✤ Meta-roles: roles/ | ——django/ | ————tasks/main.yml | ——api/ | ————tasks/main.yml |—— tkt-api/ |———— meta/main.yml api.yml development.yml
41. ticketea Automating common procedures ✤ fab -f heracles.py stop_consuming_messages:queue ✤ fab -f frontend.py maintenance_on ✤ fab -f sg.py open_sg ✤ fab -f api.py fast_rollback:version
42. metrics
43. ticketea Provisioning ✤ Ansible ✤ Fabric
44. ticketea Error reporting ✤ sentry ✤ fabric (fka. crashlytics)
45. ticketea Graphing ✤ graphite ✤ grafana
46. ticketea Logging and alarming ✤ rsyslog ✤ graylog ✤ cabot ✤ slack/email/x connected through a queue
47. Thanks. ;-) Jose Ignacio Galarza, @igalarzab CTO