GO MICRO

• GO MICRO
  • Tools
  • Packages
  • Development
  • TODO

Tools

• Go - For building and running the microservice.
• Docker - To containerize the application for deployment.
• kubectl The Kubernetes command-line tool.
• minikube - Local Kubernetes cluster for testing.

Packages

• oapi-codegen - Generates Go server boilerplate from OpenAPI specs.
• chi - Lightweight and idiomatic routing for HTTP services.
• ent - ORM framework for data modeling and querying in Go.
• pg - PostgreSQL driver for database connectivity.
• dotenv - For loading environment variables from .env files.

Development

• Generate Service Definition from OAS
  • make gen-openapi SERVICE=<service>
    • ex: petstore/api/api.gen.go
• Add ent and Create Schema
  • cd <service>
  • go run -mod=mod entgo.io/ent/cmd/ent new <entity>
    • ex: petstore/ent/schema/pet.go
  • go generate ./ent
• Implement Service Endpoints
  • ex: petstore/api/impl.go
• Deploy Locally to minikube
  • Start minikube
    • minikube start
  • Add DB_PASS (any value) to a .env file
    • make create-db-secret
  • Build + Deploy + Expose Port
    • make minikube-docker-build
    • make minikube-deploy
    • make minikube-expose

TODO

• Unit Tests for service implementation
• Another Micro-Service generated from OAS
• Deploy to a live environment (probably AWS)
• Add Helm and Argo to manage config and deployments