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Easy Consumption of Microservices

Shawn SherwoodTed Tollefson

@shawn_sherwood @tedtollefson

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HelloShawn SherwoodSoftware Architect – Kroger Co.20+ years development experience

Ted TollefsonSoftware Architect – Kroger Co.20+ years development experience

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About Kroger Co.Quick Facts• Founded in 1883 by Bernard Kroger in Cincinnati, OH• Second-largest general retailer in the US• Ranked #17 on the Fortune 500 list• Currently operating in 35 states

• ~431,000 Employees• 2,778 Supermarkets• 784 Convenience Stores• 323 Jewelry Stores• 38 Food Production Plants

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GoalMake it easy to produce and consume microservices consistently.

How are we going to do this?- Fork the Spring Initializr- Add a 3rd-party dependency- Add a VCS ignore and README- Write unit tests- Create an archetype- BONUS

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Live CodeSetup

• Fork the Spring Initializr• Set up development environment• Add an “app” sub-project (for convenience)

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Live CodeAdd a 3rd party dependency

Scenario: You want your project teams to encrypt sensitive values in configuration files. You want to make it as easy as possible for teams to comply.

Solution: You have found an encryption library that supports Spring Boot (jasypt-spring-boot-starter). You want to add it to your Initializr as an option.

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Live CodeAdd a VCS ignore file

Scenario: Some developers keep checking in inappropriate build artifacts.

Solution: Create a standard VCS ignore file. Setup your Initializr to include the ignore file in every project that is generated.

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Live CodeAdd a custom README file

Scenario: When a new project is generated, we want to capture the creation date and instructions for the libraries used.

Solution: Create a template of a README file and substitute values from the project model.

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Live CodeWrite a unit test

Scenario: Your teams are want to add more capabilities to Initializr, but they keep committing changes that break it.

Solution: Use the unit test pattern included with Initializr.

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Live CodeCreate a microservice archetype

Scenario: You have a standard set of microservice capabilities that you want every project team to leverage.

Solution: Create a microservice archetype in Initializr that automatically includes the libraries to support the desired capabilities.

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Live CodeGenerate and Run the new microservice

Show an endpoint returning JSON

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Live Code (bonus round)Add Git support

Scenario: You would like all of your project teams to be provisioned with a git repository in a standard way.

Solution: Enhance Initializr to call and configure Git. It should create a new repository and check in the newly created code.

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Live Code (bonus round)Add GitHub support

Scenario: You would like all of your project teams to be provisioned with a GitHub repository in a standard way.

Solution: Enhance Initializr to call and configure GitHub. It should create a new repository and push the newly created code to GitHub.

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Live Code (bonus round)Add continuous integration via Travis-CI

Scenario: You want your project teams to use continuous integration right from the start of the project. You want them to be setup in a consistent way. They should be provisioned in minutes.

Solution: Enhance Initializr to setup Travis CI. Setup a project in travis-ci.org and sync it with github.

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Extending FurtherAdditional Enhancement Ideas

• More files• Dockerfile

• Application Lifecycle Management• Create a project wiki• Add issue tracking

• Environments• Provision app server, database, etc.• Create dev, test, stage and production

• Reference Architectures• Web app using Angular or React• Hybrid mobile app

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Learn More. Stay Connected.

Fork Initializr Now!

Presentation: http://bit.ly/29V87HVCode: http://bit.ly/2au71UC

( https://github.com/ssherwood/ )

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