Deploy the web3-indexer helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the `web3-indexer` helm chart on the Digital Ocean Kubernetes Service using Pulumi, we'll follow these steps:

1. **Create a Kubernetes Cluster on Digital Ocean**: We'll start by declaring a `digitalocean.KubernetesCluster` resource to provision a Kubernetes cluster on Digital Ocean.

2. **Install the Helm Chart**: Once we have a Kubernetes cluster, we'll install the `web3-indexer` Helm chart using the `kubernetes.helm.v3.Chart` resource, which is a Pulumi resource that allows you to manage Helm charts in a Kubernetes cluster.

Here's a detailed program that includes these steps:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as digitalocean from "@pulumi/digitalocean";
import * as k8s from "@pulumi/kubernetes";

// Step 1: Provision a Digital Ocean Kubernetes cluster
// Documentation: https://www.pulumi.com/registry/packages/digitalocean/api-docs/kubernetescluster/
const cluster = new digitalocean.KubernetesCluster("web3-indexer-cluster", {
    // Example configuration values; you should adjust these based on your needs
    region: "nyc1",
    version: "latest",
    nodePool: {
        name: "default",
        size: "s-2vcpu-2gb",
        nodeCount: 3, // Number of nodes to provision
    },
});

// Step 2: Deploy the web3-indexer Helm chart to the cluster
// Documentation for Helm chart resource: https://www.pulumi.com/registry/packages/kubernetes/api-docs/helm/v3/chart/
const helmChart = new k8s.helm.v3.Chart("web3-indexer", {
    // Assuming Helm chart for web3-indexer is located in the official repo
    // You need to replace with the correct repository and chart name if it's different
    chart: "web3-indexer",
    version: "1.0.0", // Specify the version of the Helm chart you wish to deploy
    fetchOpts: {
        repo: "https://charts.example.com/", // Replace with the correct Helm repo URL
    },
}, { provider: new k8s.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig }) });

// Stack exports to retrieve important information about the created resources
export const clusterName = cluster.name;
export const clusterKubeconfig = cluster.kubeConfigs[0].rawConfig;
```

In this TypeScript program, we `import` the required Pulumi packages to work with Digital Ocean and Kubernetes. Replace `https://charts.example.com/` with the repository that contains the `web3-indexer` Helm chart.

The `digitalocean.KubernetesCluster` declaration creates a Kubernetes cluster with a default node pool. You can customize the `region`, `version`, and `nodePool` configurations to suit your requirements.

The `k8s.helm.v3.Chart` declaration stands for the web3-indexer helm chart deployment. You have to make sure that `chart`, `version`, and `repo` values match the actual Helm chart you wish to install.

The `{ provider: new k8s.Provider(...) }` ensures that the Helm chart is deployed to the newly created Digital Ocean Kubernetes cluster.

Lastly, we export some stack outputs like the `clusterName` and `clusterKubeconfig`. These outputs are useful if you want to interact with your Kubernetes cluster using `kubectl` or other Kubernetes tools outside of Pulumi.