This project simulates a bank's payment processing network using Anthos. Bank of Anthos allows users to create artificial accounts and simulate transactions between accounts. Bank of Anthos was developed to create an end-to-end sample demonstrating Anthos best practices.
| Service | Language | Description |
|---|---|---|
| frontend | Python | Exposes an HTTP server to serve the website. Contains login page, signup page, and home page. |
| ledger-writer | Java | Accepts and validates incoming transactions before writing them to the ledger. |
| balance-reader | Java | Provides efficient readable cache of user balances, as read from ledger-db. |
| transaction-history | Java | Provides efficient readable cache of past transactions, as read from ledger-db. |
| ledger-db | Redis Streams | Append-only ledger of all transactions. Comes pre-populated with past transaction data for default user. |
| user-service | Python | Manages user accounts and authentication. Signs JWTs used for authentication by other services. |
| contacts | Python | Stores list of other accounts associated with a user. Used for drop down in "Send Payment" and "Deposit" forms (mock, uses hard-coded data). |
| accounts-db | MongoDB | Database for user accounts and associated data. Comes pre-populated with default user. |
| loadgenerator | Python/Locust | Continuously sends requests imitating users to the frontend. Periodically created new accounts and simulates transactions between them. |
Set up a new cluster on GKE
export CLUSTER=bank-of-anthos
export PROJECT_ID=$(gcloud config get-value project)
export ZONE=us-west1-a
gcloud beta container clusters create ${CLUSTER} \
--project=${PROJECT_ID} --zone=${ZONE} \
--machine-type=n1-standard-2 --num-nodes=4
Generate RSA key pair Secret
openssl genrsa -out jwtRS256.key 4096
openssl rsa -in jwtRS256.key -outform PEM -pubout -out jwtRS256.key.pub
kubectl create secret generic jwt-key --from-file=./jwtRS256.key --from-file=./jwtRS256.key.pub
Deploy Bank of Anthos manifests
kubectl apply -f ./kubernetes-manifests
skaffold run --default-repo=gcr.io/${PROJECT_ID}/bank-of-anthos
GitHub Actions workflows described here
This is not an official Google project.
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