The Continuous PHP Pipeline
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You've got your tests, your metrics, your database migrations and your system provisioning automated, but how can you deploy everything with a push of a button and not be scared something goes wrong? Welcome to the continuous PHP Pipeline. In this talk I take the code, the tests, the metrics and the provisioners and show you how you can have a continuous delivery pipeline setup based on certain criteria you define upfront, your code gets automatically deployed to staging or to production with all the arbitrary tasks along with it. Never get stressed again about deployments. Make deployments as easy as committing to your repository and get home on time to enjoy your well deserved weekend.
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The Continuous PHP Pipeline
- 1. Continuous PHP Pipeline in it2PROFESSIONAL PHP SERVICES
- 2. Michelangelo van Dam PHP Consultant, Community Leader & Trainer https://www.flickr.com/photos/akrabat/8784318813
- 3. Schedule • Development processes • Automation first • Continuous Integration • The PHP Pipeline • Do what you do best: code • Round up https://www.flickr.com/photos/wenzday01/3005297355
- 4. Knowledge Check • What’s PHP? • What’s a SCM? • What’s unit testing? • What are distributed systems? • What is provisioning? • What are merge conflicts? https://www.flickr.com/photos/didmyself/6530383417
- 6. Waterfall Project Start Kick-off meeting Defining Approach Meeting Execs Project Initiate Business Cases Project Controls Risk Definition Project Control Progress Monitoring Project Delivery Project finalisation Maintenance Ongoing process
- 9. Need to deliver Weekly backlog review Daily standups Product Backlog Acceptance Criteria Sprint Backlog Prototype Delivery Product Backlog Product BacklogProduct Backlog Sprint Project Start Kick-off meeting Defining Approach Meeting Execs Project Initiate Business Cases Project Controls Risk Definition Project Control Progress Monitoring Project Delivery Project finalisation Maintenance Ongoing process Project Requirements Ad-hock Issues Task Assignment Delivery Delivery
- 10. Delivery “event” • Off-hours release planning • Set up a maintenance page • Pre-release actions (backups, stopping crons, …) • Release checklist -> manual deployment • Post-release actions (crons, caches, …) • Removing maintenance page • Manually verify everything is working (old & new) • If lucky, going home for the night/morning
- 13. Computers are great at doing repetitive task very well
- 14. Development Source Code Static Files Database Deltas Platform Monitoring Database Storage Workers Caches Web Server Infrastructure Bare Metal Virtual Machines Cloud
- 16. Infrastructure https://www.gnu.org/graphics/heckert_gnu.small.png Hosting Providers On Premise Cloud Solution Providers
- 17. A “simple” architecture Web Web Proxy Proxy Proxy DB Slave DB Slave DB Slave DB Slave DB Master DB Master NoSQL NoSQL NoSQL 0MQ Mail SharedIO Web Database
- 18. Are you ready? Things get very complex very fast https://www.flickr.com/photos/mariano-mantel/9194344268
- 19. Platform Monitoring Database Storage Workers Caches Web Server
- 21. Why automate platform? • It should be optimised to run your application • Continuous updates and tweaks possible • Setting up your architecture in a consistent way • For production • For staging • For testing • For development
- 23. Give Docker a try • Requires no virtualisation software • Saves on resources! • Allows to set up a distributed architecture • Even for development purposes • Isolates processes in a container • Helps with securing infrastructure
- 24. Vagrant up Monitoring Database Storage Workers Caches Web Server
- 26. SCM is a must!
- 27. FTP is not a SCM
- 28. Commit and push
- 30. Why CI? • Monitors continuously • Executes directly after change • Gives feedback • Has dashboards • Automate post-development processes https://www.flickr.com/photos/amberandclint/3266859324
- 31. CI takes care of your code Pre build steps! - Stop crons, queues and workers - Remove target from load balancer Build steps! - Check out new changes - Run unit tests - Provision target(s) - Provision databases Post build steps! - Warm up caches - Reactivate crons, queues and workers - Add target back into loadbalancer - Sent status out
- 39. Prioritise build steps Unit tests Metrics Provisioning new target Provisioning databases Provisioning workers Integration tests Promote branch CI
- 40. Stop execution at first fail Unit tests Metrics Provisioning new target Provisioning databases Provisioning workers Integration tests Promote branch CI
- 41. When good, promote! Unit tests Metrics Provisioning new target Provisioning databases Provisioning workers Integration tests Promote branch CI Unit tests Metrics Provisioning new target Provisioning databases Provisioning workers Integration tests Promote branch CI
- 42. Delivery vs Deployment Source: http://blog.crisp.se/2013/02/05/yassalsundman/continuous-delivery-vs-continuous-deployment
- 43. Continuous Delivery Build Feedback Build Feedback SCM Commits SCM Change Polling Deployment Management Dashboard test staging production
- 44. Continuous Deployment Build Feedback Execute Delivery SCM Commits SCM Change Polling test staging production
- 45. All code is live! if ($application->getFeature('myawesomefeature')->isComplete()) { " ! // Here comes the new feature functionality " ! }
- 46. Other usages • A/B Testing • Partial based roll-out (GeoLocation, Age, Gender) • SaaS premium features • Automated assisted training programs • Netflix Chaos Monkey Testing • See http://in2.se/nfchaosmonkey for details • April’s fools day fun!
- 48. Benefits
- 50. Our tools
- 51. Our Stats Total commits today 129 Total releases 118 Total failures 11 Total DB deployments 4 Average failure resolution time (minutes) 5 Average release time (minutes) 3
- 53. Your turn now! • Automate everything that’s not coding • Create repeatable, reliable processes • Fail as quickly as possible • If it hurts, do it more frequently • Communicate each step • Everyone is responsible! • Continuously improve • On your code • On your processes
- 56. in it2PROFESSIONAL PHP SERVICES Michelangelo van Dam! Zend Certified Engineer PHP Consulting - Training - Quality Assurance www.in2it.be | [email protected]