HandsOn TestDriven Infrastructure As Code Development
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The document discusses the importance of Infrastructure as Code (IaC) in modern agile software development, highlighting its benefits in enabling rapid releases and streamlined operations. It outlines the phases of infrastructure creation, from bootstrapping to deployment, using tools like Chef, Puppet, and Ansible. Additionally, it emphasizes test-driven development for infrastructure, promoting a cycle of specifying desired behaviors, implementing code, and refining designs.
HandsOn TestDriven Infrastructure As Code Development
- 1. XPDays 2014 HandsOn Infrastructure as Code Alexander Birk, pingworks http://www.pingworks.de @alexanderbirk
- 2. Why IaC?
- 4. 1-4 Releases per Year
- 5. 1-4 Environments per Project
- 6. Agility Accelerates! Agile Software Development Continuous Integration Continuous Delivery
- 7. Agility Accelerates! Agile Software Development Continuous Integration Continuous Delivery
- 8. Was: 1-4 Now: 365 Releases per Year→ Was: 1-4 Now: 10-100 Environments→
- 9. Handcrafting is not an Option
- 11. Hypotheses Capture Infrastructure as Code
- 12. Quality: Version Control Everything Automated Testing Continuous Integration & Delivery Collaborative Development
- 13. Speed: Automated Creation No Handoff Delays Continuous Integration & Delivery Collaborative Development
- 14. Infrastracture Creation Phases Application „Middleware“ i.e. AppServer, DB, MsgQueue Operating System Virtual Machine Bootstrapping Provisioning t Deployment
- 15. Bootstrapping Provisioning Deployment Provide a VM with: Just enough OS Network Setup Remote Login possible
- 16. Bootstrapping Provisioning Deployment (1) Bootstrap OS from bare (virtualized) Metal (2) Reuse a Base Image
- 17. Bootstrapping Provisioning Deployment Install & Configure Software Increments Reliable Fast Idempotent Atomic On Multihost Environments
- 18. Bootstrapping Provisioning Deployment Focus on Provisioning Input: VM with Just Enough OS Output: VM Ready for Deployment!
- 19. Bootstrapping Provisioning Deployment Install and Configure „Middleware“ Define VM Role Specific Setups Combine VM Roles to Multihost Environments
- 21. Bootstrapping Provisioning Deployment Chef uses Kitchen Metaphor: Chef Cookbooks Recipies Ressources Attributes Knife Testkitchen
- 23. BDD Infrastructure Development 1) Specify desired Behaviour in an Integration Test and run it → red 2) Implement Infrastructure Code that delivers that Behaviour Run the Code then run Integration Test again → green 3) Think about design and → refactor Redo from Start
- 24. Go! Go! Go!