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Developer Nirvana

Spring Connect Charlotte
Developer Nirvana
Speaker: Jim Hopkins

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Developer Nirvana

  1. 1. Developer Nirvana Jim Hopkins, Container Practice Manager, WWT
  3. 3. What is Nirvana • Perfect peace, happiness • Enlightenment • Transcending the cycle of reincarnation • Bliss
  4. 4.
  5. 5. What Nirvana IS NOT • Pain • Suffering • Loathing
  6. 6. Nirvana in Information Technology • Work / Life balance • Reduction of Toil • Workplace joy • Team development • Blameless Learning
  7. 7. DevOps Excellence DevOps is the combination of people, process and technology to enable the continuous delivery of value. DevOps Is:DevOps is Not: • A way of working • A culture • A journey of continuous improvement • An extension of agile methodology • A role • A separate team • A tool or suite of tools • Something that can be purchased in units
  8. 8. A P P L I C A T I O N S E R V I C E S Culture • Eliminate blame • Build high levels of trust between peers, departments, etc. • Operate with empathy • Organize work in cross-functional teams • Intimate collaboration with customer (Q: Who is your customer?) • Break down silos of knowledge (Q: What do you need to do to communicate with a peer in another department?) Culture consists of connections, not of separations: to specialize is to isolate. - Carlos Fuentes, Author
  9. 9. A P P L I C A T I O N S E R V I C E S Automation • Save humans from repetitive tasks • Consistency of processes • Create confidence in the system • Disruptions of Automation • Automating Deployments • Where and When to Automate • Can you Automate too far? If it keeps up, man will atrophy all his limbs but the push-button finger. - Frank Lloyd Wright
  10. 10. A P P L I C A T I O N S E R V I C E S Lean • Rapid prototyping • Experimentation • Reducing waste • Building MVP versus a complete solution • Vertically slicing workContinuous improvement is better than delayed perfection. - Mark Twain
  11. 11. A P P L I C A T I O N S E R V I C E S Measurement • How do you know you’re improving without measuring? • Types of Performance: People, Product, Operations • Measuring isn’t just good enough – what do you do with the metrics? • Four Key Metrics of Effective DevOps You can’t manage what you don’t measure. - Peter Drucker, Founder of Modern Management
  12. 12. A P P L I C A T I O N S E R V I C E S Sharing • Transferring knowledge • Eliminate silos • Whole system improvements through shared localizes successes • How to promote and incentivize sharing and consuming? • Create platforms for disseminating information company-wide • Leaders: Allow for the time to share; sharing takes time and effort • Increase investment in decisions and outcomes • Hold blameless retrospectives Knowledge is a weapon. I intend to be formidably armed. - Terry Goodkind, American Author
  13. 13. 4 Key Metrics Software delivery performance • Deploy Frequency (when business demands) • Lead Time for Changes • Mean Time to Recover (MTTR) • Change Fail Rate
  14. 14. High PerformingTeams More agile 46x More frequent code deployments Difference between multiple times a day and once a week or less 2555x Faster lead time from commit to deploy Difference between less than an hour and more than a week
  15. 15. High PerformingTeams More reliable 2406x Faster time to recover from downtime High performers recover in less than an hour instead of weeks 7x Less likely that changes will fail High performers changes fail 0-15% of the time, compared to 46-60% of the time
  16. 16. Software Delivery Performance Software Delivery Performance is comprised of throughput and stability, and both are possible without tradeoffs
  17. 17. A P P L I C A T I O N S E R V I C E S The FirstWay: Flow (Systems Thinking) A bad system will beat a good person every time. - W. Edwards Deming
  18. 18. A P P L I C A T I O N S E R V I C E S The SecondWay: Feedback How do you know what you’ve done is right? The single biggest problem in communication is the illusion that it has taken place. - George Bernard Shaw, Playwright
  19. 19. A P P L I C A T I O N S E R V I C E S TheThirdWay: Experimentation Creating a culture that fosters continual experimentation, taking risks and learning from failure Science, my boy, is made up of mistakes, but they are mistakes which it is useful to make, because they lead little by little to the truth. - Jules Verne, Journey to the Center of the Earth
  20. 20. DevOps Journey at WWT
  21. 21. Test all the things!
  22. 22. 5TH ITERATION
  23. 23. Demo
  24. 24. Demo:Tools andTech on Display A CI/CD pipeline composed of Infrastructure-as-Code tools. Tool Role Packer Automate creation of base OS image. Terraform Automate creation of VMs based on standard OS image. Ansible Automate configuration of VMs to suit application needs. Molecule Automate testing of Ansible playbooks. GitLab CI Automate execution of build, test, deploy pipeline.
  25. 25. Demo: Context Most pipelines deploy applications. This deploys infrastructure. Control Plane Environment Dev Environment Here, we automate deployment of the Control Plane Environment. Ops Manager jump box bosh Concourse GitLab CI Automation PKS Ops Manager bosh k8sk8sk8sk8s k8sk8sk8sk8s ... Production Environment Ops Manager PKS bosh k8sk8sk8sk8s k8sk8sk8sk8s k8sk8sk8sk8s ...k8sk8sk8sk8s k8sk8sk8sk8s k8sk8sk8sk8s ConcourseConcourse Workers Concourse Workers
  26. 26. Demo: Assumptions 1. NSX-T is installed, configured, managed externally. 2. Network segments and NAT rules for the control plane are managed separately. 3. DNS records are managed separately. 4. IP address space is managed separately. These are not required for all pipelines, but they are true here and could also be true in a real environment.