Deploy the keycloak-operator-legacy helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the `keycloak-operator-legacy` Helm chart on DigitalOcean's Kubernetes Service (DOKS), we'll first create a Kubernetes cluster using `digitalocean.KubernetesCluster`. After that, we'll use Pulumi's `kubernetes.helm.v3.Chart` to deploy the Helm chart to the cluster we've created.

Here's the program that does that, and I'll break it down step by step:

### Step 1: Create a Kubernetes Cluster
We define a `KubernetesCluster` which is a managed Kubernetes service provided by DigitalOcean. We specify the region, node size, and node count here.

### Step 2: Deploy the Keycloak Operator Helm Chart
Once the cluster is provisioned, we deploy the Keycloak operator Helm chart using the `Chart` resource from the `@pulumi/kubernetes` package. This resource represents a Helm chart within your Kubernetes cluster which is a collection of pre-configured Kubernetes resources.

Let's get to the code:

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

// Step 1: Create a DigitalOcean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("do-cluster", {
    region: "nyc3", // Specify the region for your DOKS cluster
    version: "latest", // Use the latest available version of Kubernetes
    nodePool: {
        name: "default",
        size: "s-2vcpu-2gb", // Specify the size for your nodes within the node pool
        nodeCount: 2, // Specify the initial number of nodes in the node pool
    },
});

// Step 2: Deploy the "keycloak-operator-legacy" Helm chart on the DOKS cluster
const keycloakOperatorChart = new kubernetes.helm.v3.Chart("keycloak-operator", {
    chart: "keycloak-operator-legacy",
    version: "1.0.0", // Replace with the correct version of the chart
    namespace: "keycloak", // Specify the namespace where you want to install the chart
    fetchOpts: {
        repo: "https://your-helm-chart-repository.com", // Replace with the actual repository
    },
}, { provider: new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig }) });

// Export the cluster's kubeconfig
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;
```

In this program:

- We use the `digitalocean` provider to provision a new Kubernetes cluster.
- The `kubernetes.helm.v3.Chart` resource manages the deployment of the Helm chart to our Kubernetes cluster.
- We need to provide the actual Helm chart repository URL in the `repo` field under `fetchOpts`.
- We are exporting the `kubeconfig` at the end, which will be the configuration file needed to connect to your Kubernetes cluster using `kubectl` or any other Kubernetes management tool.

Please replace `"https://your-helm-chart-repository.com"` with the actual URL of the Helm chart repository where `keycloak-operator-legacy` is hosted and the `version` with the specific chart version you wish to deploy.

Remember to configure your Pulumi CLI with the appropriate DigitalOcean API token prior to running this program, since it's assumed that you have already set up the necessary credentials.