Online Boutique is a cloud-first microservices demo application. Online Boutique consists of an 11-tier microservices application. The application is a web-based e-commerce app where users can browse items, add them to the cart, and purchase them.
Google uses this application to demonstrate the use of technologies like Kubernetes, GKE, Istio, Stackdriver, and gRPC. This application works on any Kubernetes cluster, like Google Kubernetes Engine (GKE). Itβs easy to deploy with little to no configuration.
If youβre using this demo, please β Star this repository to show your interest!
Note to Googlers (Google employees): Please fill out the form at go/microservices-demo.
Screenshots
| Home Page | Checkout Screen |
|---|---|
 |
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Interactive quickstart (GKE)
Quickstart (GKE)
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Ensure you have the following requirements:
- Google Cloud project.
- Shell environment with
gcloud,git, andkubectl.
-
Clone the repository.
git clone https://github.com/GoogleCloudPlatform/microservices-demo cd microservices-demo/ -
Set the Google Cloud project and region and ensure the Google Kubernetes Engine API is enabled.
export PROJECT_ID=<PROJECT_ID> export REGION=us-central1 gcloud services enable container.googleapis.com \ --project=${PROJECT_ID}
Substitute
<PROJECT_ID>with the ID of your Google Cloud project. -
Create a GKE cluster and get the credentials for it.
gcloud container clusters create-auto online-boutique \ --project=${PROJECT_ID} --region=${REGION}
Creating the cluster may take a few minutes.
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Deploy Online Boutique to the cluster.
kubectl apply -f ./release/kubernetes-manifests.yaml
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Wait for the pods to be ready.
kubectl get pods
After a few minutes, you should see the Pods in a
Runningstate:NAME READY STATUS RESTARTS AGE adservice-76bdd69666-ckc5j 1/1 Running 0 2m58s cartservice-66d497c6b7-dp5jr 1/1 Running 0 2m59s checkoutservice-666c784bd6-4jd22 1/1 Running 0 3m1s currencyservice-5d5d496984-4jmd7 1/1 Running 0 2m59s emailservice-667457d9d6-75jcq 1/1 Running 0 3m2s frontend-6b8d69b9fb-wjqdg 1/1 Running 0 3m1s loadgenerator-665b5cd444-gwqdq 1/1 Running 0 3m paymentservice-68596d6dd6-bf6bv 1/1 Running 0 3m productcatalogservice-557d474574-888kr 1/1 Running 0 3m recommendationservice-69c56b74d4-7z8r5 1/1 Running 0 3m1s redis-cart-5f59546cdd-5jnqf 1/1 Running 0 2m58s shippingservice-6ccc89f8fd-v686r 1/1 Running 0 2m58s -
Access the web frontend in a browser using the frontend's external IP.
kubectl get service frontend-external | awk '{print $4}'
Visit
http://EXTERNAL_IPin a web browser to access your instance of Online Boutique. -
Once you are done with it, delete the GKE cluster.
gcloud container clusters delete online-boutique \ --project=${PROJECT_ID} --region=${REGION}
Deleting the cluster may take a few minutes.
Use Terraform to provision a GKE cluster and deploy Online Boutique
The /terraform folder contains instructions for using Terraform to replicate the steps from Quickstart (GKE) above.
Other deployment variations
- Istio/Anthos Service Mesh: See these instructions.
- non-GKE clusters (Minikube, Kind): see the Development Guide
Deploy Online Boutique variations with Kustomize
The /kustomize folder contains instructions for customizing the deployment of Online Boutique with different variations such as:
- integrating with Google Cloud Operations
- replacing the in-cluster Redis cache with Google Cloud Memorystore (Redis), AlloyDB or Google Cloud Spanner
- etc.
Architecture
Online Boutique is composed of 11 microservices written in different languages that talk to each other over gRPC.
Find Protocol Buffers Descriptions at the ./protos directory.
| Service | Language | Description |
|---|---|---|
| frontend | Go | Exposes an HTTP server to serve the website. Does not require signup/login and generates session IDs for all users automatically. |
| cartservice | C# | Stores the items in the user's shopping cart in Redis and retrieves it. |
| productcatalogservice | Go | Provides the list of products from a JSON file and ability to search products and get individual products. |
| currencyservice | Node.js | Converts one money amount to another currency. Uses real values fetched from European Central Bank. It's the highest QPS service. |
| paymentservice | Node.js | Charges the given credit card info (mock) with the given amount and returns a transaction ID. |
| shippingservice | Go | Gives shipping cost estimates based on the shopping cart. Ships items to the given address (mock) |
| emailservice | Python | Sends users an order confirmation email (mock). |
| checkoutservice | Go | Retrieves user cart, prepares order and orchestrates the payment, shipping and the email notification. |
| recommendationservice | Python | Recommends other products based on what's given in the cart. |
| adservice | Java | Provides text ads based on given context words. |
| loadgenerator | Python/Locust | Continuously sends requests imitating realistic user shopping flows to the frontend. |
Features
- Kubernetes/GKE: The app is designed to run on Kubernetes (both locally on "Docker for Desktop", as well as on the cloud with GKE).
- gRPC: Microservices use a high volume of gRPC calls to communicate to each other.
- Istio: Application works on Istio service mesh.
- Cloud Operations (Stackdriver): Many services are instrumented with Profiling and Tracing. In addition to these, using Istio enables features like Request/Response Metrics and Context Graph out of the box. When it is running out of Google Cloud, this code path remains inactive.
- Skaffold: Application is deployed to Kubernetes with a single command using Skaffold.
- Synthetic Load Generation: The application demo comes with a background job that creates realistic usage patterns on the website using Locust load generator.
Development
See the Development guide to learn how to run and develop this app locally.
Demos featuring Online Boutique
- Use Azure Redis Cache with the Online Boutique sample on AKS
- Sail Sharp, 8 tips to optimize and secure your .NET containers for Kubernetes
- Deploy multi-region application with Anthos and Google cloud Spanner
- Use Google Cloud Memorystore (Redis) with the Online Boutique sample on GKE
- Use Helm to simplify the deployment of Online Boutique, with a Service Mesh, GitOps, and more!
- How to reduce microservices complexity with Apigee and Anthos Service Mesh
- gRPC health probes with Kubernetes 1.24+
- Use Google Cloud Spanner with the Online Boutique sample
- Seamlessly encrypt traffic from any apps in your Mesh to Memorystore (redis)
- Strengthen your app's security with Anthos Service Mesh and Anthos Config Management
- From edge to mesh: Exposing service mesh applications through GKE Ingress
- Take the first step toward SRE with Cloud Operations Sandbox
- Deploying the Online Boutique sample application on Anthos Service Mesh
- Anthos Service Mesh Workshop: Lab Guide
- KubeCon EU 2019 - Reinventing Networking: A Deep Dive into Istio's Multicluster Gateways - Steve Dake, Independent
- Google Cloud Next'18 SF
- Day 1 Keynote showing GKE On-Prem
- Day 3 Keynote showing Stackdriver APM (Tracing, Code Search, Profiler, Google Cloud Build)
- Introduction to Service Management with Istio
- Google Cloud Next'18 London β Keynote showing Stackdriver Incident Response Management
This is not an official Google project.