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DevOps at scale: what we did, what we learned at Societe Generale

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The following talk discusses Societe Generale's transformation journey to DevOps, and more largelly to continuous delivery principles, inside a large, traditionnal company. It emphases the importance of practices over tooling, a human centric approach massively leveraging on coaching, and our "framework" approach to make it scaling up to the IS level. It has been initially delivered at DevOps Rex conference, with teammate Laurent Dussault, also DevOps coach at Societe Generale.

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Adrien Blind DevOps Coach & Docker Captain @adrienblind Laurent Dussault DevOps Coach @lolo_deck DevOpsAtScale ’’Whatwedid,whatwelearnedatSocieteGenerale’’
AContinuousDeliveryprogram
@adrienblind A transformation program Objectives QualityTime-To-MarketValue ▪ Get inspired from web giants ▪ Focus on the operational aspects ▪ Practices > Tools Approach ▪ A pre-existing ”agile center” ▪ Agility brings value only if iterations deliver the product ▪ Transform an existing landscape Context
@adrienblind Triptych of complementary set of practices Agile “Implicate all stakeholders on the product, deliver more rapidely and smoothly value for the business” Craftsmanship “Build robust and sustainable code” DevOps “Devs & Ops collaborate to build and operate the product, they particularly leverage on strong automation & metrology”
@adrienblind Foundations & Deployment
Foundations
@adrienblind Continuous Delivery framework Trunk-Based Development BDD Clean code Continuous Deployment ROLES Vision Creation Agile Project Management Version Control Continuous Integration Server Deployment Automation) Just-in-time Design BUSINESS DEV OPS SUPPORTSPONSOR PO PRACTICES BIZDEV Measure Everything Test Automation Infrastructure as Code Non-Event Release TOOLS INFRA BA TL DEV QA Cloud Backlog Grooming Build Vision Comprehensive Testing Strategy Configuration Management DB Monitor TA Flexible Architecture Scrum, Kanban, ScrumBan (just- in-time, one-piece flow) INCEPT BUILD RELEASEACCEPT OPERATE Data Management Build binaries only once Pair-Programming DEVOPS TDD Capacity Management Monitoring Measurement Definitive Media Library Technology Quality Check Release Orchestrator Agile/Flow Craftsmanship DevOps
@adrienblind Increase impacts… LEARN FROM YOUR PRODUCT FOSTER COLLABORATIONRELEASE FREQUENTLY LOWER STRESS AND RISK SHIP confidently & faster the product Product-centric Software oriented Change oriented Deliver rapidely new features with quality Application teams (DEVs) fosters INNOVATION Stability oriented Ensure proper run of applications Operation teams (OPs) fosters RATIONALIZATION Service-centric Server, storage, databases Committed together toward the whole product’s lifecycle “You build it, you run it” Different objectives leading to confusion & friction ≠ e.g. INFRA is becoming SOFTWARE (Infrastructure as Code) DEV practices shared with OPSOPS practices shared with DEV 01101 01010 10010 e.g. MEASURE EVERYTHING (From monitoring to Metrology) CULTURE AUTOMATION MEASURE SHARE ©OCTOTechnology
@adrienblind Operational aspects – historical landscape Build Run App Infra 2 confusion walls: Orthogonal objectives  frictions  Focused on innovation & velocity Focused on rationalization & stability
@adrienblind Operational aspects – target Feature teams made of BA/Devs/Ops people, agile & collectively engaged on the whole lifecycle of their product The best friend of an Ops is the Dev who built the feature he deploys and operates Build Run App Infra Infrastructure product Business product
@adrienblind Infrastructure as code 1. Provision 2. Configure 3. Operate Cloud IaaS - PaaS Legacy IT Describe the whole application environment “Pilot infrastructure with developers paradigms and tools” API + code Business product Infrastructure product
@adrienblind Continuous Delivery platform “Reconciliate infrastructure environment and application lifecycles in a shared, common delivery pipeline” Automated pipeline DEV UAT PROD Infrastructure as code
@adrienblind And Docker? Immutable Versionned Light Portable Disposable Programmatic Social Incremental “A universal, self-sufficient and standard artifact, containing an app module, its infrastructure and configuration”
@adrienblind     Metrology > Monitoring “In measure we trust”
On-fieldcoaching
@adrienblind Discovering the DevOps challenge Babagile
@adrienblind • Fast value DevOps • Stable value Crafts manship • Value in a boxAgile • ScopeV-cycle Onboarding Agile Craftsmanship Devops
@adrienblind Take-off
@adrienblind En route We’re now on our way… … practices are rolled progressively Continuous Integration Automated deployment Mastered environment Pipeline Per branch duplication Pipelines Slicing Trunk based Feature toggle Metrology
@adrienblind Landing
Conclusion
@adrienblind Take away
Adrien Blind DevOps Coach & Docker Captain @adrienblind Laurent Dussault DevOps Coach @lolo_deck Thanks!

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DevOps at scale: what we did, what we learned at Societe Generale

  • 1. Adrien Blind DevOps Coach & Docker Captain @adrienblind Laurent Dussault DevOps Coach @lolo_deck DevOpsAtScale ’’Whatwedid,whatwelearnedatSocieteGenerale’’
  • 3. @adrienblind A transformation program Objectives QualityTime-To-MarketValue ▪ Get inspired from web giants ▪ Focus on the operational aspects ▪ Practices > Tools Approach ▪ A pre-existing ”agile center” ▪ Agility brings value only if iterations deliver the product ▪ Transform an existing landscape Context
  • 4. @adrienblind Triptych of complementary set of practices Agile “Implicate all stakeholders on the product, deliver more rapidely and smoothly value for the business” Craftsmanship “Build robust and sustainable code” DevOps “Devs & Ops collaborate to build and operate the product, they particularly leverage on strong automation & metrology”
  • 7. @adrienblind Continuous Delivery framework Trunk-Based Development BDD Clean code Continuous Deployment ROLES Vision Creation Agile Project Management Version Control Continuous Integration Server Deployment Automation) Just-in-time Design BUSINESS DEV OPS SUPPORTSPONSOR PO PRACTICES BIZDEV Measure Everything Test Automation Infrastructure as Code Non-Event Release TOOLS INFRA BA TL DEV QA Cloud Backlog Grooming Build Vision Comprehensive Testing Strategy Configuration Management DB Monitor TA Flexible Architecture Scrum, Kanban, ScrumBan (just- in-time, one-piece flow) INCEPT BUILD RELEASEACCEPT OPERATE Data Management Build binaries only once Pair-Programming DEVOPS TDD Capacity Management Monitoring Measurement Definitive Media Library Technology Quality Check Release Orchestrator Agile/Flow Craftsmanship DevOps
  • 8. @adrienblind Increase impacts… LEARN FROM YOUR PRODUCT FOSTER COLLABORATIONRELEASE FREQUENTLY LOWER STRESS AND RISK SHIP confidently & faster the product Product-centric Software oriented Change oriented Deliver rapidely new features with quality Application teams (DEVs) fosters INNOVATION Stability oriented Ensure proper run of applications Operation teams (OPs) fosters RATIONALIZATION Service-centric Server, storage, databases Committed together toward the whole product’s lifecycle “You build it, you run it” Different objectives leading to confusion & friction ≠ e.g. INFRA is becoming SOFTWARE (Infrastructure as Code) DEV practices shared with OPSOPS practices shared with DEV 01101 01010 10010 e.g. MEASURE EVERYTHING (From monitoring to Metrology) CULTURE AUTOMATION MEASURE SHARE ©OCTOTechnology
  • 9. @adrienblind Operational aspects – historical landscape Build Run App Infra 2 confusion walls: Orthogonal objectives  frictions  Focused on innovation & velocity Focused on rationalization & stability
  • 10. @adrienblind Operational aspects – target Feature teams made of BA/Devs/Ops people, agile & collectively engaged on the whole lifecycle of their product The best friend of an Ops is the Dev who built the feature he deploys and operates Build Run App Infra Infrastructure product Business product
  • 11. @adrienblind Infrastructure as code 1. Provision 2. Configure 3. Operate Cloud IaaS - PaaS Legacy IT Describe the whole application environment “Pilot infrastructure with developers paradigms and tools” API + code Business product Infrastructure product
  • 12. @adrienblind Continuous Delivery platform “Reconciliate infrastructure environment and application lifecycles in a shared, common delivery pipeline” Automated pipeline DEV UAT PROD Infrastructure as code
  • 13. @adrienblind And Docker? Immutable Versionned Light Portable Disposable Programmatic Social Incremental “A universal, self-sufficient and standard artifact, containing an app module, its infrastructure and configuration”
  • 17. @adrienblind • Fast value DevOps • Stable value Crafts manship • Value in a boxAgile • ScopeV-cycle Onboarding Agile Craftsmanship Devops
  • 19. @adrienblind En route We’re now on our way… … practices are rolled progressively Continuous Integration Automated deployment Mastered environment Pipeline Per branch duplication Pipelines Slicing Trunk based Feature toggle Metrology
  • 23. Adrien Blind DevOps Coach & Docker Captain @adrienblind Laurent Dussault DevOps Coach @lolo_deck Thanks!