DeliverAgile2018 - from Apollo 13 to Google SRE
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This document discusses Site Reliability Engineering (SRE) and how it relates to DevOps. It provides definitions of SRE and outlines Google's approach. The document also discusses key SRE concepts like reliability targets, best practices for incident management, and how SRE can be applied in the enterprise by balancing innovation and optimization. Finally, it highlights areas where DevOps and SRE intersect, noting that both aim to continuously deliver business value.
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DeliverAgile2018 - from Apollo 13 to Google SRE
- 1. From Apollo 13 to Google SRE When DevOps met SRE Sanjeev Sharma IBM Distinguished Engineer @sd_architect | sdarchitect.blog
- 2. 2Page© 2016 IBM Corporation #WhoAmI • 20+ Years in Software Development and Delivery • IBM Distinguished Engineer and CTO for DevOps Adoption • Author of two DevOps books: • DevOps For Dummies: https://ibm.biz/BdsPMX • The DevOps Adoption Playbook: http://amzn.to/2hH7rt2 • Blog: https://sdarchitect.blog • @sd_architect
- 3. 3Page© 2016 IBM Corporation What is SRE? “SRE is what happens when you ask a software engineer to design an operations team. ” - Betsy Beyer, Chris Jones, Jennifer Petoff, and Niall Richard Murphy. “Site Reliability Engineering.” Site Reliability Engineering (SRE) : Google’s approach to Service Management
- 4. 4Page© 2016 IBM Corporation Reliability: The Real Availability Numbers! How much downtime does 5-nines 99.999% availability translate to? • Daily: 0.9s • Weekly: 6.0s • Monthly: 26.3s • Yearly: 5m 15.6s 4-nines or 99.99% translates to downtime of: • Daily: 8.6s • Weekly: 1m 0.5s • Monthly: 4m 23.0s • Yearly: 52m 35.7s Even the more common 99.95% availability SLO is a mere 43 seconds/day or 5:24 minutes/week.
- 5. 5Page© 2016 IBM Corporation Apollo 13 – The real heroes Image Courtesy: Universal Pictures, NASA
- 6. 6Page© 2016 IBM Corporation Eight Tenets of Google SRE 1. Ensuring a Durable Focus on Engineering 2. Pursuing Maximum Change Velocity Without Violating a Service’s SLO 3. Monitoring 4. Emergency Response 5. Change Management 6. Demand Forecasting and Capacity Planning 7. Provisioning 8. Efficiency and Performance
- 7. 7Page© 2016 IBM Corporation Best Practices of Incident Management 1. Prioritize 2. Prepare 3. Trust 4. Introspect 5. Consider alternatives 6. Practice 7. Change it around Image Courtesy: Universal Pictures, NASA
- 8. 8Page© 2016 IBM Corporation Development SCM Build Package Repo Deploy Development SCM Build Package Repo Deploy Development SCM Build Package Repo Deploy Development SCM Build Package Repo Deploy Test Stage Production Mainframe Hosted App Mobile App App Server Monolithic App Cloud Native App Enterprise Release Agile/Innovation Edge Rapid Delivery for Innovation • Agile • Antifragile • Experimentation • New and Innovative • Hybrid Cloud • IaaS/PaaS • Containers Industrialized Core Deliver at regular cadence • Agile • Stability • Predictability • Lean Delivery pipeline • Core and Legacy Systems Hybrid Infrastructure – Physical, Cloud • IaaS/PaaS • Containers Business Capability DevOps + SRE in the Enterprise Balancing Innovation and Optimization
- 9. 9Page© 2016 IBM Corporation Development SCM Build Package Repo Deploy Development SCM Build Package Repo Deploy Development SCM Build Package Repo Deploy Development SCM Build Package Repo Deploy Test Stage Production Application N Application C Application B Application A Enterprise Release Agile/Innovation Edge Rapid Delivery for Innovation • Agile • Antifragile • Experimentation • New and Innovative • Hybrid Cloud • IaaS/PaaS • Containers Industrialized Core Deliver at regular cadence • Agile • Stability • Predictability • Lean Delivery pipeline • Core and Legacy Systems Hybrid Infrastructure – Physical, Cloud • IaaS/PaaS • Containers Business Capability Touchpoints of Standardization Across Delivery Pipelines Deployment Automation and Orchestration Service and Test Environment Virtualization ArchitecturePlanning Release Management Operational Readiness
- 10. 10Page© 2016 IBM Corporation Your Delivery Pipeline will be as fast as the slowest Delivery Pipeline it is dependent on Planning
- 11. 11Page© 2016 IBM Corporation Modernizing to Microservices based Architecture: Refactoring Code and Data and defining REST APIs Architecture
- 12. 12Page© 2016 IBM Corporation Developers are paid to write code, not maintain deployment and configuration scripts Application Deployment and Environment Orchestration
- 13. 13Page© 2016 IBM Corporation If you are doing 2- week Sprints, but it takes 3-weeks to get a Test Server, how long are your Sprints? Test Service and Environment Virtualization
- 14. 14Page© 2016 IBM Corporation It is not possible to patch the software of a missile AFTER it has been launched Release Management
- 15. 15Page© 2016 IBM Corporation Shift thinking from Mean Time Between Failure (MTBF) to Mean Time To Repair (MTTR). Operational Readiness for SRE
- 16. 16Page© 2016 IBM Corporation Antifragile Systems Antifragile: Things that are neither fragile or robust, but rather thrive in chaos.
- 17. 17Page© 2016 IBM Corporation When DevOps meets SRE DevOps: “Everyone is responsible for delivering Business Value.” SRE: “(Everyone) is responsible for delivering Continuous Business Value”