DevOps is not a Culture. It is about responsibility
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What is DevOps? Why is it so important for software organizations? This is a short intro to the problem that DevOps tries to solve and how DevOps offers an alternative model of responsibility in an organization that solves this problem.
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DevOps is not a Culture. It is about responsibility
- 1. DevOps All slides and pictures in this presentation, even those based on real presentations and ideas, are entirely an opinionated view of devops by a single person and does not speak for any sane group of people, vendor, cthulhu or the giant spaghetti monster
- 2. DevOps is not a Culture or a job description or a methodology or a tool
- 3. Developer’s job description: Take requirements and build software They are: Experts coders, modelers, problem resolvers, adapting to change, complex systems, etc.
- 4. Developer’s responsibilities: • Write the software • Model data schema • Design system architecture • Prepare shippable software • Fixing bugs • “It works on my machine!”
- 5. Operation’s job description: Make sure the product runs and stays running. They are: Experts at managing clouds, networking, storage, security, handling failures, preventing attacks.
- 6. Operation’s responsibilities: • Ensure production is running • Minimize risk to production – Risk from change – Risk from malfunctions – Risk from attacks • Mitigate problems
- 7. Ever seen NASA Mission Control?
- 8. Operations are measured by production stability Stabilize production minimize risk Risk caused by malfunctions, attacks, change Change introduced by developers
- 9. Operations are measured by production stability Stabilize production minimize risk Risk caused by malfunctions, attacks, change Change introduced by developers Operations responsibility is to prevent developers from introducing change
- 10. We want stability! Developers Operations We want change!
- 11. We want stability! We are measured by our stability. It is our job! Developers Operations We want change! We are measured by our changes. It is our job!
- 13. Developer’s responsibilities (devops): • Write the software, etc. • Prepare shippable software • Fixing bugs • Mitigate risk due to changes • Ensure stability due to changes
- 14. Developer’s responsibilities (devops): Developers own the change and its impact to production
- 15. Which means for the developer • Pre-deployment guards – compilers, unit tests, integration tests, tests… • Predictable deployment – Automated deployment, immutable servers • Post-deployment guards – Monitoring, alerting, auto-rollback, etc.
- 16. Operation’s responsibilities (devops): • Ensure production is running • Minimize risk to production – Risk from change – Risk from malfunctions – Risk from attacks • Mitigate some problems Operations enable developers to take ownership of changes
- 17. Which means for the operations • Focus on malfunctions and attacks • Focus on system topology • Help developers build guards – Pre-deployment guards – Predictable deployment – Post-deployment guards
- 18. DevOps is an organizational structure at which professional responsibility is distributed by owners and enablers
- 20. Does the same applies to other functions in the organization? Not only developers and operations?