micro-starter-kit

micro-starter-kit

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

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/deploy.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/deploy.yaml

Reference

Project Docs

1. prerequisites
2. scaffolding
3. makefile
4. testing
5. docker
6. gitops
7. releasing
8. Protobuf Style Guide
9. 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