Published on February 21, 2014
DevOpsGuys Stop Thinking about Servers DevOps, “Systems Thinking” and becoming Application-Centric @DevOpsGuys DevOpsGuys www.devopsguys.com 1
Agenda • • • • • Forces acting on Operations DevOps as a Response DevOps 3-ways and “Systems Thinking” Being “Application-Centric” Q&A @DevOpsGuys DevOpsGuys www.devopsguys.com 2
Companies are Changing @DevOpsGuys DevOpsGuys www.devopsguys.com 3
Who needs IT Depts? • “Gartner predicts that in less than three years, 35% of enterprise IT expenditures will happen outside of the corporate IT budget.” • “results of PricewaterhouseCoopers' Digital IQ Survey indicate that at 100 of the companies PwC ranks as "top performers," IT controls less than 50% of corporate technology expenditures.” http://www.computerworld.com/s/article/9226415/The_Upside_of_Shadow_IT?pageNumber=1 @DevOpsGuys DevOpsGuys www.devopsguys.com 4
Development HAS changed @DevOpsGuys DevOpsGuys www.devopsguys.com 5
How the Ops world is changing SaaS “Infrastructure as Code” Cloud SoftwareDefined Networking Continuous Delivery Agile Time-tomarket APM Operations BYOD And many, many more… @DevOpsGuys DevOpsGuys www.devopsguys.com 6
Technology keeps evolving @DevOpsGuys DevOpsGuys www.devopsguys.com 7
Servers today are like razors… • • • High Capex Longer lifetime Maintenance Cost • • • @DevOpsGuys DevOpsGuys High Opex Ephemeral Easier to replace than fix www.devopsguys.com 8
And why should you care? WHAT IS DEVOPS? @DevOpsGuys DevOpsGuys www.devopsguys.com 9
Defining Devops I “The term “DevOps” typically refers to the emerging professional movement that advocates a collaborative working relationship between Development and IT Operations, resulting in the fast flow of planned work (i.e., high deploy rates)” – Gene Kim http://itrevolution.com/11devops/ @DevOpsGuys DevOpsGuys www.devopsguys.com 10
He goes on to say… “…while simultaneously increasing the reliability, stability, resilience and security of the production environment.” – Gene Kim @DevOpsGuys DevOpsGuys www.devopsguys.com 11
DevOps influences Deming Toyota (TPS) • • • • Lean Agile @DevOpsGuys DevOps DevOpsGuys Muri Mura Muda Kaizen Goldratt ToC www.devopsguys.com 12
CALMS Model Culture Automation Lean • Hearts & Minds • Embrace Change • CI/CD/ • “Infrastructure as Code” • Focus on producing value for the end-user • Small batch sizes Metrics • Measure everything • Show the improvement Sharing • Open information sharing • Collaboration @DevOpsGuys DevOpsGuys www.devopsguys.com 13
Looking at the “Big Picture” THE 3 WAYS OF DEVOPS & SYSTEMS THINKING @DevOpsGuys DevOpsGuys www.devopsguys.com 14
The First Way Think about the System, focus on the end Value Operations Represents the Customer… @DevOpsGuys DevOpsGuys www.devopsguys.com 15
The Second Way “Feedback Loops” = Continuous Service Improvement CSI is a key enabler of DevOps @DevOpsGuys DevOpsGuys www.devopsguys.com 16
The Third Way Embrace Change Be willing to Experiment Learn from your mistakes @DevOpsGuys DevOpsGuys www.devopsguys.com 17
Systems Thinking 101 “Systems thinking is a framework for seeing interrelationships rather than things, for seeing patterns rather than static snapshots. It is a set of general principles spanning fields as diverse as physical and social sciences, engineering and management.” Peter Senge @DevOpsGuys DevOpsGuys www.devopsguys.com 18
Systems Thinking 101 “Systems thinking enables you to grasp and manage situations of complexity and uncertainty in which there are no simple answers. It's a way of 'learning your way towards effective action' by looking at connected wholes rather than separate parts. It's sometimes called practical holism.” - Open University @DevOpsGuys DevOpsGuys www.devopsguys.com 19
C&C versus Systems Thinking @DevOpsGuys DevOpsGuys http://www.systemsthinking.co.uk/2-1.asp www.devopsguys.com 20
Practical Systems thinking in a DevOps World BECOMING APPLICATIONCENTRIC @DevOpsGuys DevOpsGuys www.devopsguys.com 21
Lifecycle view @DevOpsGuys DevOpsGuys www.devopsguys.com 22
Products not Projects "Delivery teams run software products - not projects – that run from inception to retirement“ – Jez Humble, (Thoughtworks) https://sites.google.com/a/jezhumble.net/devops-manifesto/ @DevOpsGuys DevOpsGuys www.devopsguys.com 23
Organisational Change @DevOpsGuys DevOpsGuys www.devopsguys.com 24
Understand Dependencies @DevOpsGuys DevOpsGuys www.devopsguys.com 25
Find your constraints "Any improvement not made at the point of constraint is an illusion.“ – “The Phoenix Project” http://www.amazon.co.uk/The-PhoenixProject-Helping-Businessebook/dp/B00AZRBLHO @DevOpsGuys DevOpsGuys www.devopsguys.com 26
Metrics, Learning & Change • Arbitrary Measures – Focus on Outputs (“Inside-out view”) – Used for Command & Control VS • Capability Measures – Focus on Purpose (“Outside-In view”) – Used for Learning and Improvement @DevOpsGuys DevOpsGuys www.devopsguys.com 27
Incentivise Learning not Faking “Will a numerical goal be achieved? Anybody can achieve almost any goal by: – Redefinition of terms – Distortion and faking – Running up costs” Deming 1994 ‘The New Economics’ p 43 @DevOpsGuys DevOpsGuys www.devopsguys.com 28
More transactions = better, right? CASE STUDY #1 TRANSACTIONS PER SECOND @DevOpsGuys DevOpsGuys www.devopsguys.com 29
4,000 calls/min! 2ms! Arbitrary Measure = “Focus is on the metric (higher transactions rates)!” @DevOpsGuys DevOpsGuys www.devopsguys.com 30
Zoom out… (Systems Thinking!) @DevOpsGuys DevOpsGuys www.devopsguys.com 31
262 calls = Inefficient SQL! Capability Measure = “What does high transaction rate tell us about the System?” @DevOpsGuys DevOpsGuys www.devopsguys.com 32
6 key elements of being Application-Centric • System thinking – “Outside-In View” – Understand the Customer Needs – And your business goals • • • • • Understand the Product Lifecycle Understand the Dependencies Know your Constraints Capability Metrics for Learning Embrace Change (Feedback Loops) @DevOpsGuys DevOpsGuys www.devopsguys.com 33
DevOpsGuys Thank You operations | availability | performance | scalability | migration | strategy @DevOpsGuys DevOpsGuys www.devopsguys.com 34
Focussing on servers leads to pointless optimisation CASE STUDY #2 FINDING THE CONSTRAINT @DevOpsGuys DevOpsGuys www.devopsguys.com 35
The Situation E-commerce customer New website High data-start times on page load Poor load testing results Initial conversation with client 2 week delay while hosting provider scaled out the hardware… • Problem still not fixed… • • • • • • @DevOpsGuys DevOpsGuys www.devopsguys.com 36
The big picture @DevOpsGuys DevOpsGuys www.devopsguys.com 37
What We Do DevOpsGuys provide development & operations support (DevOps) services for your online applications. You run your business. We run your website. It’s as simple as that. @DevOpsGuys DevOpsGuys www.devopsguys.com 38
Our service portfolio • 24 x 7 Application-Centric web operations • DevOps Transformation & Training • Continuous Delivery implementation • Infrastructure Automation & “Infrastructure as Code” • Application Performance Management • AppDynamics Implementation & Consultancy @DevOpsGuys • Web Performance consulting • Web monitoring • Load Testing • Test Automation and scripting • JetBrains Product Implementation & Consultancy • Octopus Deploy implementation DevOpsGuys www.devopsguys.com 39
The Leadership Team James Smith (@TheDevMgr) Steve Thair (@TheOpsMgr) • 16 years of software delivery experience. • Proven track record • 25 years of IT Operations experience. • Proven track record – – – – – – – Pizza Hut KFC Dell RAC Aviva Fujitsu Siemens Whitbread @DevOpsGuys – – – – – – – DevOpsGuys Vodafone Credit Suisse Group IBM BNP Paribas Zurich Financial Services Totaljobs Group TSL Education www.devopsguys.com 40
Contact Us Visit us at www.devopsguys.com Call our team on +44 (0)20 8798 3079 Email our engineers at firstname.lastname@example.org @DevOpsGuys DevOpsGuys www.devopsguys.com 41
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