Slides from my session at Deliver Agile 2018.

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

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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

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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

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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”

18. THANK YOU
Any questions?
@sd_architect
http://sdarchitect.blog