Deploy the ueb-listener helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy the `ueb-listener` helm chart on Digital Ocean Kubernetes Service (DOKS), you need to follow these steps using Pulumi:

1. Create a Kubernetes cluster on DigitalOcean using the `digitalocean.KubernetesCluster` resource.
2. Install the Helm chart on the created cluster with the `kubernetes.helm.sh/v3.Chart` resource.

Firstly, you'll instantiate a `KubernetesCluster` to create a new DOKS cluster. This resource will define the configuration of your cluster, such as the region, node size, and the number of nodes.

After setting up the cluster, you will need to configure Pulumi to use the generated kubeconfig so it can communicate with your new DOKS cluster. This can typically be done by setting an environment variable that Pulumi will use to access the cluster.

Finally, you'll use the `Chart` resource from the Kubernetes Helm Chart package to deploy your `ueb-listener` helm chart onto the DigitalOcean cluster.

Here is a program written in TypeScript that demonstrates this process. Make sure to have Pulumi installed and set up with your DigitalOcean token before running this.

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

// Create a DigitalOcean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster('do-cluster', {
  region: 'nyc1',
  version: '1.21.5-do.0',  // replace with the desired Kubernetes version
  nodePool: {
    name: 'default',
    size: 's-2vcpu-2gb', // the size of Droplets to use for workers in the node pool
    nodeCount: 2,        // the number of Droplet instances in the node pool
  },
});

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

// Set up a provider to use the above cluster's kubeconfig
const k8sProvider = new k8s.Provider('do-k8s', {
  kubeconfig: kubeconfig,
});

// Deploy the ueb-listener helm chart
const uebListenerChart = new k8s.helm.v3.Chart('ueb-listener-chart', {
  chart: 'ueb-listener',            // replace with your chart name if different
  version: '1.0.0',                  // replace with your chart version
  fetchOpts: { repo: 'https://helm.example.com/' }, // replace with your Helm chart repository
}, { provider: k8sProvider });

// Export the Helm chart deployment status
export const uebListenerStatus = uebListenerChart.status;
```

This program does the following:

- It initializes a new Kubernetes cluster on DigitalOcean with the necessary configuration.
- It outputs the raw kubeconfig of the cluster, which allows `kubectl` and Pulumi to interact with the cluster.
- It creates a Pulumi Kubernetes provider configured to use the created cluster.
- It deploys the `ueb-listener` Helm chart to the Kubernetes cluster using the specified provider.

To run this Pulumi program, you would navigate to the directory containing the `index.ts` file and run `pulumi up` which will prompt you to login if you haven't already and then perform the deployment. Make sure you have permissions and API access configured for Pulumi to interact with DigitalOcean.

You might need to adjust the `chart`, `version`, and `fetchOpts` based on the details of the `ueb-listener` Helm chart and where it's hosted.