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micro-starter-kit

Microservices starter kit for Golang, aims to be developer friendly.

Build Status

Quality

Overview

What you get

• Monorepo - Sharing Code Between Microservices
• gRPC microservices with REST Gateway
• Input Validation with protoc-gen-validate (PGV)
• Config - Pluggable Sources, Mergeable Config, Safe Recovery
• Customizable Logging
• CRUD Example using GORM, benchmarks, XORM next?
• GORM code gen via protoc-gen-gorm or use protoc-go-inject-tag?
• Dependency injection Container, Try wire next?
• multi-stage-multi-target Dockerfile
• One Step build/publish/deploy with ko
• BuildInfo with govvv
• Linting with GolangCI linters aggregator
• Linting Protos with Buf
• CICD Pipelines with GitHub Actions
• Kubernetes Matrix Deployment with Kustomize
• Add k8s healthchecks with cmux
• Feature Flags (enable/disable with zero cost)
• Observability
• Service Mesh with Istio
• GraphQL Gateway with gqlgen, rejoiner,gqlgen
• Graph-Based ORM ent
• Switch to Bazel Build

Getting Started

Prerequisite

Refer prerequisites docs

Initial Setup

Also Refer scaffolding docs

clone the repo

git clone https://github.com/xmlking/micro-starter-kit ~/Developer/Work/go/micro-starter-kit
# pull dependencies (when every time `go.mod` changed)
go mod download

Run

Database

By default this project use embedded sqlite3 database. if you want to use postgreSQL,

• start postgres via docker-compose command provided below
• uncommend postgres import statement and comment sqlite in plugin.go
• start micro server with --configFile=config.dev.postgres.yaml flag
  i.e., go run srv/account/main.go srv/account/plugin.go --configFile=config.dev.postgres.yaml

# to start postgres in foreground
docker-compose up postgres
# to stop postgres
docker-compose down
# if needed, remove `postgres_data` volume to recreate database next time, when you start.
docker system prune --volumes

Services

Node: --server_address=localhost:5501x --broker_address=localhost:5502x required only when you are behind VPN a.k.a Work From Home

# dev mode
make run-account
# or
make run-account ARGS="--server_address=localhost:55011 --broker_address=localhost:55021"
# or
go run srv/account/main.go srv/account/plugin.go \
--configDir deploy/bases/account-srv/config \
--server_address=localhost:55011 --broker_address=localhost:55021

make run-greeter
# or
make run-emailer ARGS="--server_address=localhost:55012 --broker_address=localhost:55022"

make run-emailer
# or
make run-emailer ARGS="--server_address=localhost:55013 --broker_address=localhost:55023"


# integration tests for config module via CMD
make run TARGET=demo TYPE=cmd
go run cmd/demo/main.go --help
go run cmd/demo/main.go --database_host=1.1.1.1 --database_port=7777

export APP_ENV=production
go run cmd/demo/main.go

Test

Refer testing docs

GitOps

Make

Refer makefile docs

Docker

Refer docker docs

Release

Refer releasing docs

Deploy

make docker DOCKER_REGISTRY=docker.pkg.github.com DOCKER_CONTEXT_PATH=xmlking/micro-starter-kit
docker rmi $(docker images -f "dangling=true" -q)

# make kustomize OVERLAY=e2e NS=default VERSION=v0.1.0-440-g6c7fb7a
make kustomize
kubectl apply -f build/kubernetes.yaml

POD_NAME=$(kubectl get pods  -lapp.kubernetes.io/name=account-srv -o jsonpath='{.items[0].metadata.name}')
kubectl logs -f -c srv $POD_NAME

kubectl delete -f build/kubernetes.yaml

Reference

Project Docs

1. prerequisites
2. scaffolding
3. makefile
4. testing
5. docker
6. gitops
7. Protobuf Style Guide
8. Google Protobuf Style Guide

External Docs

1. Go-Micro Getting Started
2. examples - example usage code for micro
3. microhq - a place for prebuilt microservices
4. explorer - which aggregates micro based open source projects
5. micro-plugins extensible micro plugins
6. step-by-step-guide-micro
7. micro-in-cn
8. Platform Web
9. grpc template
10. Simple API backed by PostgresQL, Golang and gRPC