Deploy on GCP Using Helm Charts

Part 1: Setting Up a Kubernetes Cluster on GCP

Step 1: Set Up GCP Account and Enable Kubernetes Engine API

1. Sign In to Google Cloud Console:

   • Go to the Google Cloud Console.

2. Create a Project:

   • Click Create Project, provide a project name, and click Create.

   • If using an existing project, note the project ID for later use.

3. Enable Kubernetes Engine API:

   • Navigate to APIs & Services > Library.

   • Search for Kubernetes Engine API and click Enable.

Step 2: Install Required Tools

1. Google Cloud CLI (gcloud)

   The Google Cloud Command-Line Interface (CLI) is a cross-platform tool that allows you to manage GCP resources. To install gcloud, please refer to the official Google Cloud SDK installation guide.

2. kubectl kubectl is the command-line tool for interacting with Kubernetes clusters. To install kubectl, please refer to the Kubernetes documentation.

3. Helm

   Helm is a package manager for Kubernetes applications. To install Helm, please refer to the official Helm documentation.

Step 3: Create a Kubernetes Cluster

1. Create the Cluster:

   • Run the following command to create a Kubernetes cluster:

     gcloud container clusters create <CLUSTER_NAME> \
         --zone <ZONE> \
         --num-nodes <NUMBER_OF_NODES> \
         --machine-type e2-standard-4

     Replace:

     • <CLUSTER_NAME>: A unique name for your cluster.

     • <ZONE>: The GCP zone (e.g., us-central1-a).

     • <NUMBER_OF_NODES>: Number of nodes in your cluster.

     • e2-standard-4: Machine type with 4 CPUs and 16GB RAM per node.

     Example:

     gcloud container clusters create hypers-cluster \
         --zone us-central1-a \
         --num-nodes 3 \
         --machine-type e2-standard-4

2. Verify the Cluster:

   • Fetch cluster credentials to allow kubectl to interact with it:

     gcloud container clusters get-credentials <CLUSTER_NAME> --zone <ZONE>

   • Confirm the nodes are ready:

     kubectl get nodes

Part 2: Deploy Hyperswitch on Kubernetes Using Helm

Step 1: Add and Update the Hyperswitch Helm Repository

1. Add the Hyperswitch Helm repository:

   helm repo add hyperswitch https://juspay.github.io/hyperswitch-helm

2. Update Helm repository to fetch the latest charts:

   helm repo update

Step 2: Prepare the Kubernetes Cluster

1. Label Kubernetes Nodes:

   • Ensure nodes meet the minimum requirements: 4 CPUs and 6GB memory.

   • Label your nodes:

     kubectl label nodes <your-node-name> node-type=generic-compute

   • List nodes to confirm labels:

     kubectl get nodes --show-labels

2. Create a Namespace:

   • Create a dedicated namespace for Hyperswitch:

     kubectl create namespace hyperswitch

Step 3: Install Hyperswitch

1. Install Hyperswitch services using Helm:

   helm install hypers-v1 hyperswitch/hyperswitch-stack -n hyperswitch

2. Verify the Deployment:

   • Check the status of all deployed pods:

     kubectl get pods -n hyperswitch

   • Ensure all pods are in the Running state.

That's it! Hyperswitch should be up and running on your GCP account 🎉 🎉

Accessing Services

Use the following command for port-forwarding to access the services. Replace <namespace> with your namespace:

kubectl port-forward service/hyperswitch-server 8080:80 -n <namespace> > /dev/null 2>&1 & \
kubectl port-forward service/hyperswitch-control-center 9000:80 -n <namespace> > /dev/null 2>&1 & \
kubectl port-forward service/hyperswitch-web 9050:9050 -n <namespace> > /dev/null 2>&1 & \
kubectl port-forward service/<release-name>-grafana 3000:80 -n <namespace> > /dev/null 2>&1 & \
kubectl port-forward service/<release-name>-vector 3103:3103 -n <namespace> > /dev/null 2>&1 & \
kubectl port-forward service/mailhog 8025:8025 -n <namespace> > /dev/null 2>&1 &

Access the services at:

• App server: http://localhost:8080

• Control center: http://localhost:9000

• Hyperswitch Web: http://localhost:9050/HyperLoader.js

• Grafana: http://localhost:3000

• Vector: http://localhost:3103

• Mailhog: http://localhost:8025

Troubleshooting

• View Pod Logs: To check logs for a specific pod in Google Kubernetes Engine (GKE):

  kubectl logs <pod-name> -n <namespace>

• View Events: To list events in the namespace sorted by creation time:

  kubectl get events -n <namespace> --sort-by='.metadata.creationTimestamp'

• Deploy Hyperswitch Helm Chart on GKE: If deploying for the first time or reinstalling, run:

  helm uninstall <release-name> -n <namespace>
  helm install <release-name> hyperswitch/hyperswitch-stack -n <namespace>

Customization & Configuration

To customize Hyperswitch, clone the Helm chart repository and modify values.yaml:

git clone https://github.com/juspay/hyperswitch-helm.git

Update the values.yaml file inside hyperswitch-stack/ and apply changes with:

helm upgrade --install <release-name> hyperswitch/hyperswitch-stack -n <namespace>

Uninstall Hyperswitch & Delete GKE Cluster

To uninstall Hyperswitch:

helm uninstall <release-name> -n <namespace>

To delete the GKE cluster completely:

gcloud container clusters delete <cluster-name> --region <region> --project <project-id> --quiet

Test a payment

Use the Hyperswitch Control Center and make a payment with test card.

Refer our postman collection to try out REST APIs.