Zero to Microservices

Transcript

1. Zero To Micro Services
   

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2. Overview
   • Martin Fowler Micro Services
   • Application is a suite of small services
   • communicate with lightweight mechanisms, often
   REST
   

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3. 12 Factor Apps
   • Store config in the environment
   • Treat backing services as attached resources
   • Execute the app as one or more stateless processes
   

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4. Functional Detail
   • Routing
   • Validation
   • Persistance
   • Authentication
   • Testing
   

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5. Where do we start?
   • From the API end
   • Build the API you want to talk too
   • Use the API as the basis for your service
   • Re use the API as the interface to your Datastore
   

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6. Do we need to build all this?
   • Locate similar open source projects
   • Review Licence
   • Build on their foundation
   • Read a lot of Code
   • Start small and work your way up
   

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7. Code
   • Lets look under the bonnet of a service that uses this
   structure.
   

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8. Implementation: DRY’er
   • No frameworks
   • Use interfaces
   • High quality API Client as a side affect
   • Sharing parameter structs between layers
   

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9. In Review
   • Learnt a ton building both the buildkite and assembly
   prototype
   • Need to replace the http.Handler routines with negoni
   + middleware + authentication anyone?!
   • Lots of things to rejig around that (delete some code).
   • Move some of the test helpers out into a library
   

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10. Questions?
    

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11. Links
    • 12 Factor Applications
    • assembly - REST API based on this talk
    • go-buildkite - Client API build using a similar model
    • thesrc - A bigger example by sourcegraph
    • go-sourcegraph - Client API also using this model
    

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