Deploy the thanos-operator helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the `thanos-operator` Helm chart on the Digital Ocean Kubernetes Service using Pulumi, you will need to perform the following steps:

1. Create a Digital Ocean Kubernetes Cluster.
2. Install the Helm chart on the Kubernetes cluster.

For the first step, we'll be using the `digitalocean.KubernetesCluster` resource to create a cluster. And for the second step, we'll install the `thanos-operator` Helm chart using the `kubernetes.helm.sh/v3.Chart` resource.

In the program below, I'm making a few assumptions:
- You have a Digital Ocean token set up in your Pulumi configuration that allows you to create and manage resources.
- You have the necessary configuration to access your Digital Ocean Kubernetes cluster once it is created.
- No specific version or configuration options are provided for `thanos-operator`, so we'll deploy it with default values.

Here's a Pulumi TypeScript program that accomplishes these steps:

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

// Create a new Digital Ocean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("thanos-cluster", {
    region: "nyc3",
    version: "latest",
    nodePool: {
        name: "default-pool",
        size: "s-2vcpu-2gb",
        nodeCount: 1,
    },
});

// Export the DigitalOcean Kubeconfig
export const kubeconfig = cluster.kubeConfigs[0].rawConfig;

// Set up a provider to use the kubeconfig from the cluster we just created
const k8sProvider = new kubernetes.Provider("k8s-provider", {
    kubeconfig: kubeconfig,
});

// Install the thanos-operator Helm chart onto the cluster
const thanosOperatorChart = new kubernetes.helm.v3.Chart("thanos-operator", {
    chart: "thanos-operator",
    // The repository where the Helm chart is located. This is just a placeholder repository.
    // You'll need to substitute this with the actual repository URL that hosts the thanos-operator chart.
    repo: "thanos-operator-repo",
    // If you need to specify a specific namespace, you can add `namespace: "yourNamespace",` here
}, { provider: k8sProvider });

// Export the Helm chart name and status
export const chartName = thanosOperatorChart.name;
export const chartStatus = thanosOperatorChart.status;
```

Explanation:

1. We import the necessary Pulumi libraries such as `digitalocean`, `kubernetes`, and `pulumi`.
2. We create a Kubernetes cluster on Digital Ocean using the `digitalocean.KubernetesCluster` resource.
3. The cluster size is set to `s-2vcpu-2gb` with one node in the node pool, located in the `nyc3` region. Adjust the size, region, and node count as needed for your use case.
4. We create a new provider instance `k8sProvider` which will use the `kubeconfig` from the created Digital Ocean Kubernetes cluster. This enables Pulumi to interact with your cluster.
5. We install the `thanos-operator` Helm chart using the `kubernetes.helm.v3.Chart` resource. You'll need to use the actual Helm chart repository URL that contains the `thanos-operator` chart.
6. Additionally, we export the chart's name and status so you can verify the deployment.

Make sure you replace `"thanos-operator-repo"` with the real repository URL. If Thanos Operator comes from one of the common chart repositories like `stable` or `bitnami`, ensure that the `repo` field correctly references that repository.

To run this Pulumi program:

- Save the script to a file, for instance `index.ts`.
- Execute `pulumi up` to create the resources. Follow the prompts from the command to preview and then perform the update.
- Check the outputs and the status to ensure that the cluster and Helm chart are deployed correctly.

Keep in mind that you should have the Pulumi CLI installed and configured with access to your Digital Ocean account. Also, be mindful of the costs associated with the resources you create as part of this deployment.