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https://github.com/cage1016/gokit-todo

todomvc full stack demo project. react + backend API by gokit microservice toolkit. include unit test, integration test, e2e test, github action ci
https://github.com/cage1016/gokit-todo

ci codecov docker-compose e2e-tests github-actions go-kit godev gokit gomock integration-testing istio kubernetes microservice todomvc unittest

Last synced: 3 months ago
JSON representation

todomvc full stack demo project. react + backend API by gokit microservice toolkit. include unit test, integration test, e2e test, github action ci

Host: GitHub
URL: https://github.com/cage1016/gokit-todo
Owner: cage1016
License: mit
Created: 2020-12-15T09:33:12.000Z (about 4 years ago)
Default Branch: master
Last Pushed: 2022-03-28T13:49:06.000Z (almost 3 years ago)
Last Synced: 2024-09-28T21:05:35.201Z (3 months ago)
Topics: ci, codecov, docker-compose, e2e-tests, github-actions, go-kit, godev, gokit, gomock, integration-testing, istio, kubernetes, microservice, todomvc, unittest
Language: Go
Homepage:
Size: 24.1 MB
Stars: 16
Watchers: 4
Forks: 1
Open Issues: 0
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE

Awesome Lists containing this project

README

# gokit-todo

![GitHub Workflow Status](https://github.com/cage1016/gokit-todo/workflows/ci/badge.svg)
[!["GitHub Discussions"](https://img.shields.io/badge/%20GitHub-%20Discussions-gray.svg?longCache=true&logo=github&colorB=purple)](https://github.com/cage1016/gokit-todo/discussions)
[![GoDev](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/cage1016/gokit-todo)
[![codecov](https://codecov.io/gh/cage1016/gokit-todo/branch/master/graph/badge.svg)](https://codecov.io/gh/cage1016/gokit-todo)
[![Go Report Card](https://goreportcard.com/badge/cage1016/gokit-todo)](https://goreportcard.com/report/cage1016/gokit-todo)
[![MIT license](https://img.shields.io/badge/License-MIT-blue.svg)](https://lbesson.mit-license.org/)

| Service | Description |
| -------- | --------------------- |
| todo | todoMVC backend API |
| [gokit-todo-frontend](https://github.com/cage1016/gokit-todo-frontend)| todoMVC client |

![gokit-todo](demo.gif)

## Features

- **[Kubernetes](https://kubernetes.io)/[GKE](https://cloud.google.com/kubernetes-engine/):**
The app is designed to run on Kubernetes (both locally on "Docker for
Desktop", as well as on the cloud with GKE).
- **[gRPC](https://grpc.io):** Microservices use a high volume of gRPC calls to
communicate to each other.
- **[Istio](https://istio.io):** Application works on Istio service mesh.
- **[Skaffold](https://skaffold.dev):** Application
is deployed to Kubernetes with a single command using Skaffold.
- **[go-kit/kit](https://github.com/go-kit/kit):** Go kit is a programming toolkit for building microservices (or elegant monoliths) in Go. We solve common problems in distributed systems and application architecture so you can focus on delivering business value.
- **[todomvc](https://github.com/tastejs/todomvc):** Helping you select an MV* framework

## Motivation

I use [go-kit/kit](https://github.com/go-kit/kit)(microservices toolkit) to build business project and run on Kubernetes and Istio. I also to give few talks about How i use gokit
- [GoPherCon 2020 TW: 如何透過 Go-kit 快速搭建微服務架構應用程式實戰｜ KaiChu](https://kaichu.io/posts/gokit-engineering-operation/)
- [GDG Cloud Taipei meetup #50 - Build go kit microservices at kubernete…](https://www2.slideshare.net/cagechung/gdg-cloud-taipei-meetup-50-build-go-kit-microservices-at-kubernetes-with-ease-206252668)
- [GDG Devfest 2019 - Build go kit microservices at kubernetes with ease](https://www2.slideshare.net/cagechung/gdg-devfest-2019-build-go-kit-microservices-at-kubernetes-with-ease)
- [cage1016/gokit-workshop](https://github.com/cage1016/gokit-workshop)

Go kit microservices toolkit include many microservices components itself (auth, circuitbreaker, ratelimit etcs.). We build microservices application and deploy to Kubernetes. We could drop those microservices components out with Service Mesh soluation (Istion Envoy proxy) and keep single microservice core business logic clear without any infra codes.

This demo project is [todomvc/gokit-todo-frontend](https://github.com/cage1016/gokit-todo-frontend) backend API implemented by gokit microservice tookit with best practice by myself.

## Goals
- **Project**: quick start a new microservice by toolchain [cage1016/gk](https://github.com/cage1016/gk/tree/feature/gokitconsulk8sistio). Team member could follow same guideline to develop microservice quickly.
- project layout
- **Testing**: how to write `unit` test with table test `go-sqlmock` and `gomock`. `integration` test, `e2e` test with `TestMain` and `docker-compose`
- **DevOps**: setup CI/CD workflow to increase devops lifecycle
- skaffold
- github action (CI)
- Kubernetes
- Istio
## Install

this demo support `docker-compose` or `nginx-ingress` and `istio`

### Docker-Compose

1. Run todomvc frontend & gokit-todo backend API with docker-compose
```sh
docker-compose -f docker-compose.full.yaml up -d
```
2. Visit http://localhost:8080 for demo
3. Clean docker-compose
```sh
docker-compose -f docker-compose.full.yaml down --volume
```
### k8s + Istio

1. Prepare a Kubernetes cluster
2. Install Istio (**1.6.11**)
```sh
istioctl install
kubectl label namespace default istio-injection=enabled
```
3. Install `gokit-todo` & `frontend`
```sh
kubectl apply -f https://raw.githubusercontent.com/cage1016/gokit-todo/master/deployments/k8s-istio.yaml
```
4. Set up `GATEWAY_HTTP_URL`
```sh
export INGRESS_HTTP_PORT=$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.spec.ports[?(@.name=="http2")].port}')
export INGRESS_HOST=$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.status.loadBalancer.ingress[0].hostname}')
export GATEWAY_HTTP_URL=$INGRESS_HOST:$INGRESS_HTTP_PORT
echo $GATEWAY_HTTP_URL
```
5. Visit `$GATEWAY_HTTP_URL` to access todomvc with gokit-todo backend API
6. Delete `gokit-todo` & `frontend`
```sh
kubectl delete -f https://raw.githubusercontent.com/cage1016/gokit-todo/master/deployments/k8s-istio.yaml
```
7. Uninstall Istio
```sh
istioctl manifest generate | kubectl delete -f -
kubectl delete namespace istio-system
kubectl label namespace default istio-injection=enabled --overwrite
```

### k8s + nginx-ingress

1. Prepare a Kubernetes cluster
2. Install `nginx-ingress` CRD by helm3
```sh
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm repo update
helm install ingress-nginx ingress-nginx/ingress-nginx
```
3. Install `gokit-todo` & `frontend`
```sh
kubectl apply -f https://raw.githubusercontent.com/cage1016/gokit-todo/master/deployments/k8s-nginx-ingress.yaml
```
4. Set up `INGRESS_HTTP_URL`
```sh
export INGRESS_HTTP_PORT=$(kubectl get ingress frontend-ingress -o jsonpath='{.spec.rules.*.http.paths.*.backend.servicePort}')
export INGRESS_HOST=$(kubectl get ingress frontend-ingress -o jsonpath='{.status.loadBalancer.ingress.*.hostname}')
export INGRESS_HTTP_URL=$INGRESS_HOST:$INGRESS_HTTP_PORT
echo $INGRESS_HTTP_URL
```
5. Visit `$INGRESS_HTTP_URL` to access todomvc with gokit-todo backend API
6. Delete `gokit-todo` & `frontend`
```sh
kubectl delete -f https://raw.githubusercontent.com/cage1016/gokit-todo/master/deployments/k8s-nginx-ingress.yaml
```
7. Uninstall nginx ingress
```sh
helm uninstall ingress-nginx
```

## Testing

1. `Makefile`
```sh
$ make
down docker-compose down
generate Regenerates GRPC proto and gomock
help this help
mod tidy go mod
run docker-compose stop & up
stop docker-compose stop
test test: run unit test
test-e2e test-e2e: run e2e test
test-integration test-integration: run integration test
up docker-compose up
```
2. unit test
```sh
make test
```
3. unit integration test by docker-compose
```sh
make test-integration
```
4. unit e2e test by docker-compose
```sh
make test-e2e
```
## License