DevOps is not a Culture. It is about responsibility
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Transcript of DevOps is not a Culture. It is about responsibility
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DevOpsAll 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 groupof people, vendor, cthulhu or the giant spaghetti monster
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DevOps is not a Cultureor a job description
or a methodologyor a tool
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Developer’s job description:
Take requirements and build software
They are:
Experts coders, modelers, problem resolvers, adapting to change, complex systems, etc.
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Developer’s responsibilities:
• Write the software• Model data schema• Design system architecture• Prepare shippable software• Fixing bugs• “It works on my machine!”
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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.
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Operation’s responsibilities:
• Ensure production is running• Minimize risk to production
– Risk from change– Risk from malfunctions– Risk from attacks
• Mitigate problems
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Ever seen NASA Mission Control?
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Operations are measured by production stability
Stabilize production minimize riskRisk caused by malfunctions, attacks, changeChange introduced by developers
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Operations are measured by production stability
Stabilize production minimize riskRisk caused by malfunctions, attacks, changeChange introduced by developers
Operations responsibility is to prevent developers from introducing change
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We want stability!Developers Operations
We want change!
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We want stability!
We are measured by our stability. It is our job!
Developers OperationsWe want change!
We are measured by our changes. It is our job!
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Change the Responsibility
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Developer’s responsibilities (devops):
• Write the software, etc.• Prepare shippable software• Fixing bugs• Mitigate risk due to changes• Ensure stability due to changes
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Developer’s responsibilities (devops):
Developers own the change and its impact to production
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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.
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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
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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
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DevOps is an organizational structure at which professional responsibility is distributed by
owners and enablers
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It’s about responsibility
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Does the same applies to other functions in the organization?
Not only developers and operations?