Cool Store Application on Service Mesh

This project is inspired from CoolStore project by JBoss Demo Central & Red Hat Demo Central

CoolStore is a containerised polyglot microservices application consisting of services based on .NET Core, NodeJS and more running on Service Mesh.

It demonstrates how to wire up small microservices into a larger application using microservice architectural principals.

Presentation

• From Microservices to Service Mesh - DevCafe Event - July 2018
• Service Mesh for Microservices- Vietnam Mobile Day Event - June 2018

Table of contents

• Prerequisites
• Services
• Up and Running
• µService Development
• Open API
• CI/CD
• Contributing
• Contributors
• Licence

Prerequisites

• Windows 10
• Windows Subsystem Linux (WSL - Ubuntu OS)
• Docker for Windows (Kubernetes enabled)
• kubectl
• helm
• istioctl

Services

There are several individual microservices and infrastructure components that make up this app:

1. Catalog Service: NodeJS service and MongoDB, serves products and prices for retail products

• http://localhost:5002
• http://api.coolstore.local/catalog

2. Cart Service: .NET Core service which manages shopping cart for each customer

• http://localhost:5003
• http://api.coolstore.local/cart

3. Inventory Service: .NET Core service and SQL Server, serves inventory and availability data for retail products

• http://localhost:5004
• http://api.coolstore.local/inventory

4. Pricing Service: .NET Core service which is a business rules application for product pricing

• http://localhost:5005
• http://api.coolstore.local/pricing

5. Review Service: .NET Core service and SQL Server running for writing and displaying reviews for products

• http://localhost:5006
• http://api.coolstore.local/review

6. Rating Service: NodeJS service running for rating products

• http://localhost:5007
• http://api.coolstore.local/rating

7. IdP: Identity Provider using IdentityServer4 to authentication with OAuth 2.0 and OpenID Connect for the whole stack

• http://localhost:5001
• http://id.coolstore.local

8. Web UI (PWA): A frontend based on vuejs and Node.js

• http://localhost:8080
• http://coolstore.local

Up and Running

1. Make sure we have Docker for Windows running with Kubernetes option enabled. We need to install kubectl, helm and istioctl on the build machine as well.

2. From current console, type bash to enter Linux Subsystem (Ubuntu)

3. Then cd into your root of project

> ./deploys/cs-build.sh

It should run and package all docker images.

4. Download and install istio-1.0.0 on the box, and unzip it into somewhere, then initialize it with following commands

> cd <istio-1.0.0 path>
> kubectl create -f install/kubernetes/helm/helm-service-account.yaml
> helm init --service-account tiller --upgrade

5. Get istio-ingressgateway IP address

> kubectl get services istio-ingressgateway -n istio-system -o=jsonpath={.spec.clusterIP}
> 10.96.34.68 <== example IP

6. Create values.dev.local.yaml file in deploys/charts/coolstore, and put content like

gateway:
  ip: 10.96.34.68

7. Apply istioctl command to coolstore chart

> helm template deploys/charts/coolstore -f deploys/charts/coolstore/values.dev.yaml -f deploys/charts/coolstore/values.dev.local.yaml > deploys/k8s/dev-all-in-one.yaml
> istioctl kube-inject -f deploys/k8s/dev-all-in-one.yaml | kubectl apply -f -

8. Add hosts file with following content

127.0.0.1   api.coolstore.local
127.0.0.1   id.coolstore.local
127.0.0.1   coolstore.local

Waiting for the container provision completed

> curl -I http://coolstore.local # website
> curl -I http://api.coolstore.local # api gateway
> curl -I http://id.coolstore.local # identity provider

9. Clean up coolstore chart as

> kubectl delete -f deployment/istio/dev-all-in-one.yaml
> helm delete istio --purge

Notes:

1. Global path

Set PATH for docker, kubectl, helm, and istioctl.

2. Run with Nginx (not recommendation)

If you want to run just only Kubernetes + nginx-ingress go to deploys/charts/coolstore/values.yaml, and modify as following

nginx:
   enabled: true

Then run the helm command as

helm install --name cs-nginx stable/nginx-ingress

µService Development

Open API

CI/CD

Contributing

1. Fork it!
2. Create your feature branch: git checkout -b my-new-feature
3. Commit your changes: git commit -am 'Add some feature'
4. Push to the branch: git push origin my-new-feature
5. Submit a pull request :p

Contributors

Thang Chung	Thinh Nguyen

Licence

Code released under the MIT license.