My upcoming Manning LiveProject: Developing a service template and microservice chassis

@crichardson Service template and Microservice chassis Chris Richardson Founder of
Eventuate.io Founder of the original CloudFoundry.com Author of POJOs in Action and Microservices Patterns @crichardson [email protected] adopt.microservices.io Copyright © 2022. Chris Richardson Consulting, Inc. All rights reserved

@crichardson Presentation goal What are the Service template and Microservice
chassis patterns A walk through the Live Project series Demo the service template

@crichardson About Chris http://adopt.microservices.io

@crichardson Discounts 35% discount au35ric $110 discount coupon HZCINDYG until
3/23 http://adopt.microservices.io

@crichardson Agenda About the Service Template pattern About the Microservice
Chassis pattern Live project series: developing a service template and chassis Demoing a service template

@crichardson $ mkdir my-new-service

@crichardson Configure build logic

@crichardson Configure dependencies

@crichardson Configure plumbing

@crichardson Configure deployment pipeline .github/workflows/build.yml

@crichardson Only now can you write your business logic!

@crichardson But what about start.spring.io? Convenient BUT Code generator =
copy/paste programming Focussed on the Spring Boot ecosystem Simplistic, single Gradle project Generic and flexible - not tailored to your organization’s requirements or standards No sample business logic

@crichardson About the service template pattern

@crichardson Using a service template to create a new service
$ gh clone —private —template myorg/service-template my-new-service $ cd my-new-service

@crichardson What you get: build logic Build logic Gradle dependencies
{ …. } Gradle Plugin conﬁguration Other build logic: GitHub Actions, scripts, …

@crichardson What you get: cross cutting concerns Cross-cutting concerns Observability
Security Persistence … Testing support

@crichardson What you get: sample code Sample application logic Domain
logic: entities, repositories, services, …. Adapters: HTTP Controllers, … Tests

@crichardson Service template implements: Corporate policies/standards Industry “best practices”

@crichardson A service template (or code generator) = copy/paste Changing
requirements = update each service individually

@crichardson About the microservice chassis pattern Implements: Corporate policies/standards Industry
“best practices”

@crichardson Eliminates majority of copy/ paste = small service template
build.gradle.kts build.gradle.kts

@crichardson When requirements change For example: new version of log4j2
Update microservice chassis and publish a new version Update service template to use new version Update each service to use new version One line change

@crichardson About the Live Project Series Service Template Service Chassis
Skeleton application Implement security Package as Docker container Create a microservice chassis Configure observability Live project series

@crichardson Starting point = skeleton application Spring Boot Spring Data
for JPA Example entity and repository Persistence tests use Testcontainers to run MySQL container …

Live project 1: configure observability Observability = key part of
production readiness An observable service exposes its internal state to enable monitoring, and troubleshooting Milestones https://microservices.io/patterns/#observability

Live project 2: implement security Secure the service API with
JSON Web Tokens (JWTs) Milestones https://microservices.io/patterns/#observability

Live project 3: Package as a Docker container Build, test
and publish a Docker container image to Github container registry Milestones

Live project 4: Create a microservice chassis Extract the service
chassis framework for the service template Milestones

End result: service template + chassis artifacts

Summary: My new Live Project series teaches you how to
develop a service template and chassis The service template pattern: Runnable source template for a service Accelerates the creation of a new service Implements plumbing, build logic, …. Built on a Microservice chassis The Microservice chassis pattern Contains the bulk of the plumbing, build logic, …. Minimizes copy/paste duplication in the service template Simplifies maintenance of services

@crichardson @crichardson [email protected] adopt.microservices.io Questions? 35% discount code au35ric

My upcoming Manning LiveProject: Developing a s...

My upcoming Manning LiveProject: Developing a service template and microservice chassis

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