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Deployment Pipeline for databases (Azure SQL Database, SQL Server)
- 1. DEPLOYMENT PIPELINE FORDATABASES Eduardo Piairo @EdPiairo #WinOpsAzure SQL Database, SQL Server
- 2. ABOUT ME Deployment pipelinefor databases @EdPiairo, #WinOps @EdPiairo https://pt.linkedin.com/in/jesuspiairo eduardopiairo@gmail.com http://www.eduardopiairo.com/ Eduardo Piairo Friend of Redgate Operations Engineer DevOps Porto Founder
- 3. INDEX 1. Deployment pipeline 2.Database challenges 3. Deployment pipeline stages 4. Deployment pipeline scenarios 5. Final thoughts Deployment pipeline for databases @EdPiairo, #WinOps
- 4. PIPELINE DEFINITION In softwareengineering, a pipeline consists of a chain of processing elements (processes, threads, coroutines, functions, etc.), arranged so that the output of each element is the input of the next. by Wikipedia @ https://en.wikipedia.org/wiki/Pipeline_(software) Deployment pipeline for databases @EdPiairo, #WinOps
- 5. DEPLOYMENT PIPELINE DEFINITION Adeployment pipeline should enable collaboration between the various groups involved in delivering software and provide everyone visibility about the flow of changes in the system, together with a thorough audit trail. by Martin Fowler @ https://martinfowler.com/bliki/DeploymentPipeline.html Deployment pipeline for databases @EdPiairo, #WinOps
- 6. DEPLOYMENT PIPELINE STAGES Deploymentpipeline for databases Stage 1 – Change description (Source Control) Stage 2 – Change validation (Continuous Integration) Stage 3 – Change implementation (Continuous Delivery) Source Control Continuous Integration Continuous Delivery @EdPiairo, #WinOps
- 7. DATABASE & DEPLOYMENTPIPELINE Deployment pipeline for databases Source Control Continuous Integration Continuous Delivery Database + Application @EdPiairo, #WinOps
- 8. WHAT’S SO SPECIALABOUT DATABASES? Deployment pipeline for databases @EdPiairo, #WinOps
- 9. DATABASE CHALLENGES Deployment pipelinefor databases • Database and application changes (most of the time) are handled differently • Different deployment pipeline • Synchronization needed • Database is not included (manual work) @EdPiairo, #WinOps
- 10. DATABASE CHALLENGES Deployment pipelinefor databases • Manual work … • Lack of traceability of database changes (changes history) • It’s the most expensive and risky work type • Prevent CI and CD utilization in their full extent • Promote the fear of changes @EdPiairo, #WinOps
- 11. DATABASE CHALLENGES Deployment pipelinefor databases Databases become a bottleneck in an agile delivery process @EdPiairo, #WinOps
- 12. AUTOMATION Deployment pipeline fordatabases @EdPiairo, #WinOps
- 13. THE VALUE OFAUTOMATION Deployment pipeline for databases • Enable control over database development • Increase speed of response to change • Greater reliability of the release process • Remove/reduce human intervention in the release process From (Re)Learn and forget it to Improve and forget it @EdPiairo, #WinOps
- 14. THE VALUE OFAUTOMATION Deployment pipeline for databases Fearless database changes @EdPiairo, #WinOps
- 15. SOURCE CONTROL Deployment pipelinefor databases @EdPiairo, #WinOps SQL Script Fundamental resource
- 16. SOURCE CONTROL Deployment pipelinefor databases • First step in your database deployment pipeline • Traceability through change history • SQL as documentation • Shared code-base and shared process • Enforceable standards to reduce conflicts @EdPiairo, #WinOps
- 17. • State basedsolutions • How the database should be • Migrations based solutions • How the database should change MIGRATIONS VS STATE Deployment pipeline for databases SQL Source Control @EdPiairo, #WinOps Migration Migration State Delta
- 18. SCRIPTING GUIDELINES Deployment pipelinefor databases • One script, one operation type, one object (small batches) • Merge conflicts management • Patterns identification • File system scripts history search @EdPiairo, #WinOps
- 19. CONTINOUS INTEGRATION Deployment pipelinefor databases • Integrate and validate changes • Tests: Unit, Integration • Small batches, less risk • Considerations: • What should be tested? And When? • Can the application help on this? @EdPiairo, #WinOps
- 20. CONTINUOUS DELIVERY Deployment pipelinefor databases • Delivering change(s) in the target environment • Considerations • Downtime • Time to recover • Small batches – low risk • Affected applications @EdPiairo, #WinOps
- 21. FAILED DEPLOYMENT Deployment pipelinefor databases • Rollback/roll forward scripts • Very fast • Please, do not make mistakes • It’s like working backwards • Backups (before deploy) • Safer but slower • Keep databases small • Avoid share databases between applications @EdPiairo, #WinOps
- 22. SCENARIO #1 Deployment pipelinefor databases Source Control Continuous Integration Continuous Delivery APP DB @EdPiairo, #WinOps • Independent deployment pipelines • High need of synchronization between DBA and development team
- 23. SCENARIO #2 Deployment pipelinefor databases Source Control Continuous Integration Continuous Delivery APP DB @EdPiairo, #WinOps • Different code repositories • Independent CI process • The contact point will be the deployment moment
- 24. SCENARIO #3 Deployment pipelinefor databases Source Control Continuous Integration Continuous Delivery APP DB @EdPiairo, #WinOps • Different code repositories • Connected/dependent CI process
- 25. SCENARIO #4 Deployment pipelinefor databases Source Control Continuous Integration Continuous Delivery APP DB @EdPiairo, #WinOps • Share the some code repository, CI process and CD process • No need of synchronization • Promotes learning within teams (database code reviews)
- 26. DEMO Deployment pipeline fordatabases @EdPiairo, #WinOps
- 27. MY DEPLOYMENT PIPELINEDEFINITION Pipeline: Cultural and technical tool for managing changes in the software development process (should contemplate databases, applications and infrastructure). by me ;) Show me your pipeline and I will tell you the way you work! Deployment pipeline for databases @EdPiairo, #WinOps
- 28. DEVOPS AND DATABASES Deploymentpipeline for databases • DevOps way • Increase flow visibility • Increase feedback • Increase knowledge base @EdPiairo, #WinOps
- 29. READING MATERIAL Deployment pipelinefor databases @EdPiairo, #WinOps
- 30. Q&A Deployment pipeline fordatabases @EdPiairo, #WinOps @EdPiairo https://pt.linkedin.com/in/jesuspiairo eduardopiairo@gmail.com http://www.eduardopiairo.com/