Bank of Anthos

Bank of Anthos is a sample HTTP-based web app that simulates a bank's payment processing network, allowing users to create artificial bank accounts and complete transactions.

Google uses this application to demonstrate how developers can modernize enterprise applications using GCP products, including: GKE, Anthos Service Mesh, Anthos Config Management, Migrate for Anthos, Spring Cloud GCP, and Cloud Operations. This application works on any Kubernetes cluster.

If you’re using this app, please ★Star the repository to show your interest!

👓 Note to Googlers: Please fill out the form at go/bank-of-anthos-form if you are using this application.

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Service Architecture

Quickstart (GKE)

1. Create a Google Cloud Platform project or use an existing project. Set the PROJECT_ID environment variable and ensure the Google Kubernetes Engine API is enabled.

PROJECT_ID=""
gcloud services enable container --project ${PROJECT_ID}

2. Clone this repository.

git clone https://github.com/GoogleCloudPlatform/bank-of-anthos.git
cd bank-of-anthos

3. Create a GKE cluster.

ZONE=us-central1-b
gcloud beta container clusters create bank-of-anthos \
--project=${PROJECT_ID} --zone=${ZONE} \
--machine-type=e2-standard-2 --num-nodes=4 \
--enable-stackdriver-kubernetes --subnetwork=default \
--tags=bank-of-anthos --labels csm=

4. Deploy the demo JWT public key to the cluster as a Secret. This key is used for user account creation and authentication.

kubectl apply -f ./extras/jwt/jwt-secret.yaml

5. Deploy the sample app to the cluster.

kubectl apply -f ./kubernetes-manifests

6. Wait for the Pods to be ready.

kubectl get pods

After a few minutes, you should see:

NAME                                  READY   STATUS    RESTARTS   AGE
accounts-db-6f589464bc-6r7b7          1/1     Running   0          99s
balancereader-797bf6d7c5-8xvp6        1/1     Running   0          99s
contacts-769c4fb556-25pg2             1/1     Running   0          98s
frontend-7c96b54f6b-zkdbz             1/1     Running   0          98s
ledger-db-5b78474d4f-p6xcb            1/1     Running   0          98s
ledgerwriter-84bf44b95d-65mqf         1/1     Running   0          97s
loadgenerator-559667b6ff-4zsvb        1/1     Running   0          97s
transactionhistory-5569754896-z94cn   1/1     Running   0          97s
userservice-78dc876bff-pdhtl          1/1     Running   0          96s

7. Access the web frontend in a browser using the frontend's EXTERNAL_IP.

kubectl get service frontend | awk '{print $4}'

Example output - do not copy

EXTERNAL-IP
35.223.69.29

Other Deployment Options

• Workload Identity: See these instructions.
• Cloud SQL: See these instructions to replace the in-cluster databases with hosted Google Cloud SQL.
• Multicluster with Cloud SQL: See these instructions to replicate the app across two regions using GKE, Multi-cluster Ingress, and Google Cloud SQL.
• Istio: Apply istio-manifests/ to your cluster to access the frontend through the IngressGateway.
• Anthos Service Mesh: ASM requires Workload Identity to be enabled in your GKE cluster. See the workload identity instructions to configure and deploy the app. Then, apply istio-manifests/ to your cluster to configure frontend ingress.
• Java Monolith (VM): We provide a version of this app where the three Java microservices are coupled together into one monolithic service, which you can deploy inside a VM (eg. Google Compute Engine). See the ledgermonolith directory.

Troubleshooting

See the Troubleshooting guide for resolving common problems.

Development

See the Development guide to learn how to run and develop this app locally.

Talks/Demos using Bank of Anthos

• Google Cloud Next '20 - Hands-on Keynote (Anthos, Cloud Operations, Spring Cloud GCP, BigQuery, AutoML)