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Similar to Home TDD, Refactoring and DevOps
Similar to Home TDD, Refactoring and DevOps (20)
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Home TDD, Refactoring and DevOps
- 1. @BillyGarnet Deliver:Agile 2018 Austin, Texas Home DevOps Doing all the right things on a small scale 1 Bryan Beecham
- 2. @BillyGarnetIceberg Ideas Programming with Rick • Met once a week • Desktop game in VB6 • Map tiles, turned based • Manual version control • Much effort, little results
- 3. THE NEW STUFF What has changed in software development?
- 6. @BillyGarnetIceberg Ideas # of contributors
- 7. @BillyGarnetIceberg Ideas # of contributors
- 8. @BillyGarnetIceberg Ideas Storage + Collaboration
- 9. @BillyGarnetIceberg Ideas Storage + Collaboration
- 13. @BillyGarnetIceberg Ideas Agile Manifesto We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan That is, while there is value in the items on the right, we value the items on the left more.
- 16. @BillyGarnetIceberg Ideas Lean Software Development 1. Eliminate Waste 2. Amplify Learning 3. Decide as late as possible 4. Deliver as fast as possible 5. Empower the team 6. Build integrity in 7. See the whole
- 17. @BillyGarnetIceberg Ideas Lean Startup Entrepreneurs are everywhere Entrepreneurship is management Validated learning Innovation accounting Build-measure-learn
- 20. @BillyGarnetIceberg Ideas Microservices Microservices is a software development technique—a variant of the service-oriented architecture (SOA) architectural style that structures an application as a collection of loosely coupled services. In a microservices architecture, services are fine-grained and the protocols are lightweight.
- 21. @BillyGarnetIceberg Ideas API An Application Programming Interface (API) is a set of functions, procedures, methods or classes used by computer programs to request services from the operating system, software libraries or any other service providers running on the computer.
- 23. WHAT CAN WE DO ABOUT IT? A NEW APPROACH
- 24. @BillyGarnet Identify - Prepare - Improve - Clean Process for making change 24
- 25. @BillyGarnetIceberg Ideas Process for making changes Identify Prepare Improve Clean
- 27. @BillyGarnetIceberg Ideas Refactoring Process Identify Prepare Improve RestoreRealign Reset Ready
- 28. @BillyGarnetIceberg Ideas Step 1 - Identify • Recognize a change that can be made • Find a pattern • Come up with a hypothesis • Notice a problem
- 29. @BillyGarnetIceberg Ideas Step 2 - Prepare • Make the change easy, then make the easy change • Adjust to match a pattern • Create an experiment • Take one step backwards • Disrupt current system • Unlocking potential
- 30. @BillyGarnetIceberg Ideas Step 3 - Improve • Make the change • Extract duplication • Run the experiment • Take two steps forward
- 31. @BillyGarnetIceberg Ideas Step 4 - Clean • Remove any extraneous items • Delete duplicate code • Clean up experiment • Leave things cleaner then you found them • Ready environment for new observations
- 32. @BillyGarnetIceberg Ideas Example • Identify - I’m hungry • Prepare - Get food out, slice tomato, toast bread, etc… and create a sandwich • Improve - Take care of that hunger by eating the sandwich • Clean - Put the food away, clean your dishes.
- 33. @BillyGarnetIceberg Ideas Example • Identify - These walls need to be painted • Prepare - Clear items out of room, tape edges, put down drop cloth • Improve - Paint the walls • Clean - Remove tape, wash brushes, put extra paint away
- 34. @BillyGarnetIceberg Ideas Code Example • Identify - Notice two pieces of code are similar • Prepare - Make the pieces of code identical (extract variable, etc.) • Improve - Use extract method • Clean - Delete any unneeded code and spaces (GUIs are getting better at helping here)
- 35. @BillyGarnetIceberg Ideas Code Examples • Industrial Logic blog: https://www.industriallogic.com/blog/inside-refactoring- prepare-improve-and-clean/ • Llewellyn Falco video: https://www.youtube.com/watch?v=Fw-knDwOZTU • Martin Fowler blog: https://martinfowler.com/articles/preparatory- refactoring-example.html
- 36. @BillyGarnetIceberg Ideas What to do? • What do I want to build? • What language? • Web, Mobile? • Uh-oh graphics? Sketches? • Goals? Plans? • Why am I doing this again?
- 37. @BillyGarnetIceberg Ideas Step 1 - Identify • Make a web based game • Use python • Use micro-services • Learn more about APIs • Use DevOps • Use Agile Technical Practices
- 38. @BillyGarnetIceberg Ideas Step 2 - Prepare • Read up on things • Find technology to help with hosting, storage • Install necessary software • Update software on my system • Ability to grow in the future (hopefully!!!)
- 41. @BillyGarnetIceberg Ideas Just enough design API Gateway Dice Rolls Map Hello, world! random.org JSON files Image DB
- 42. @BillyGarnetIceberg Ideas What would be cool? Dungeon Imp Others? My Game Your Game Stories
- 43. @BillyGarnetIceberg Ideas More issues • Web Hosting • Source Control • Build • Deliver • Monitor • Scale
- 50. @BillyGarnetIceberg Ideas Agile Principles Our highest priority is to satisfy the customer through early and continuous delivery of valuable software. Deliver working software frequently… Working software is the primary measure of progress. Continuous attention to technical excellence and good design enhances agility. Simplicity--the art of maximizing the amount of work not done--is essential.
- 51. @BillyGarnetIceberg Ideas Improve • Create some code • Push the code • Check it in production
- 52. @BillyGarnetIceberg Ideas Enough presentation already…let’s see some code!!!
- 53. @BillyGarnetIceberg Ideas Clean • Simplify the process • Clean up the code • Remove any unneeded items • Boy scout rule • Might be the most important step
- 54. @BillyGarnetIceberg Ideas Manage your workflow • Question your process • Work in small pieces • Get more feedback • Simplify • Embrace new techniques
- 55. @BillyGarnetIceberg Ideas Refactor everything • Work in small pieces • Simplify • Identify-Prepare-Improve-Clean • Use a good IDE
- 56. @BillyGarnetIceberg Ideas Make testing more important • Test Driven Development (TDD) • Behaviour Driven Development (BDD) • Organize tests by speed not type • Once tests take longer run them less frequent or break them up
- 57. @BillyGarnetIceberg Ideas Good things • Feature flags • Continuous Integration • Small changes at a time • Lots of testing • Flow • Breaks
- 58. @BillyGarnetIceberg Ideas Conclusion • Deploy code as soon and often as you can • Do the simplest thing that can possible work • Work in small pieces • #nobranch • Use your app a lot
- 59. @BillyGarnet Identify - Prepare - Improve - Clean Process for making change 59