the devops · devops is a movement willing to help aligning it with company needs (starting by...
TRANSCRIPT
![Page 1: The Devops · Devops is a movement willing to help aligning IT with company needs (starting by aligning devs and ops) Why ... Not enough doesn't necessarily equals quality. Agile](https://reader034.vdocuments.net/reader034/viewer/2022042308/5ed477f280470b028f2dfb12/html5/thumbnails/1.jpg)
The
Devopsmovement
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Gildas Le Nadan
10 years + ITOPS
Freelance
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Frombuilding with lego®
todiscussions aroundthe coffee machine
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Devops
mistakes, rumors and other wrong beliefs
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Devops isnot a job title
nor a label
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No need to beboth dev and ops
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Devops
A portemanteau word
Not only a tech problem(devs, ops)
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Whichdefinition
forDevops?
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Devopsis a movement willing to help
aligning IT with company needs
(starting by aligning devs and ops)
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Why
devops ?
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At first IT was seen by companies as
a differentiator
deployed whatever the cost
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Nowadays it is mostly perceived as
a cost center
mitigation through ITIL, etc
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The huge success of the web companies shows that
IT can still make a hell of a difference, business-wise
emergence of devops!
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Devops enablers
WebOpenSourceAgile!
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Web
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Had a revelation. A reason #devops has risen to attention:
People that had to just make the web work 10+ yrs ago are now the
senior staff.@brianlmoon
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Servers
Services
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MTBFMean Time Between Failure
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MTTDMean Time To Diagnose
MTTRMean Time To Repair
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swap: for times when you want massive performance degradation to happen somewhat silently rather
than fast failure and recovery.
@jordansissel
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MTTCMean Time To Communicate
webmetrics
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Lessons learned from the Web
Servers = silos
Service oriented Keep It Simple Stupid Loose coupling Self Service
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OpenSource
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Infrastructure Debt
Opscode, Andrew Shafer, Israel Gat
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workaround_in_production =
infrastructure_debt++
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Stack
Application
Framework
Operating System
Hardware
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Push_complexity_down_the_stack
=infrastructure_debt++
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Opensource?
Neededeasier to diagnose,easier to adapt,long lasting investment,lower infrastructure debt
Not enoughdoesn't necessarily equals quality
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Agile
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[Agile manifesto]
Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan
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Agile System Administration or the limits of theAgile Manifesto
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Dev. vs Prod.
-ilities and shiping
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Just heard of a place that ties bonuses for ops staff to availability
and bonuses for devs for milestones #payingpeopletofight
#notdevops :)
@allspaw
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developped fonctionalitiesvs.
application availability
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creating value sourcevs.
creating value by offering a service
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Value only exist if the service is provided !
Importance of Non Functional Requirements
(NFR)
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Non Functional Requirements
DiagnosticPackagingScalabilityStabilityVersionningUpdatesSecurity/traceability/auditabilityAccess controlManaging shared ressources...
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One application=
2 types of users
IT Ops End user
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To a sysadmin your config files and logs are often their only UI. Think of the UX of XML and exceptions.
#devop
@ripienaar
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Solutions to the deployment problem
communication automation continuous integration information radiators and so on...
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Devops
No dogmaNo manifesto
Values
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4 axis
CultureAutomationMeasureSharing
John Willis & Damon Edwards
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Sharing
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Common visionCommon problemsCommon vocabularyCommon knowledgeCommon tools
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Importance of feedback
(Eat your own dogfood!)
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Measure
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[here be graphs]
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Business alignment
KPI, risk measurement,support decision-making
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Automation
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Managing 1000+ servers in a datacentre should be as easy as
putting together an Ikea cupboard #devops
@geogdog
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Infrastructure as Code
Andrew Shafer
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We need APIs!
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Adapting development tools
Source code management, unit tests, continuous
integration, …
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Adapting envelopment techniques
scrum, scrumban, kanban, lean, standup meeting,
retrospectives, pairing, …
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Culture
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Cooperationvs.
Silos
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Automationvs.
Procedures
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Creating multi-skilled teams dedicated to projects
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Empowerment
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InnovationCreativity
PrideFun
AttributionRecognition
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Devops
actual challenges
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How to brings devops to more “traditional” companies ?
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Web companiesvs.
Traditional companies
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Monitoring!
Service orientedAdaptableScalable
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Packaging
(distributions vs. non-packaged applications)
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Load testing in continuous integration
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“OS Bloat” and framework that sucks !
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Questions?
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Links
http://www.devopsdays.org/http://www.devopscafe.org/
http://www.planetdevops.net/http://devops/mixit/slides_en.pdf