Deploy the vspgwu helm chart on Digital Ocean Kubernetes Service

Question

Pulumi · Accepted Answer

To deploy a Helm chart named `vspgwu` on Digital Ocean's Kubernetes Service using Pulumi, you'll first create a Kubernetes cluster on Digital Ocean. After that, you will use the Helm chart resource to deploy your chart to the cluster you just created.

Here's how you can do it using TypeScript in Pulumi:

1. **Set up your Pulumi project**: Make sure you have Pulumi installed, and you have set up a new Pulumi project. Configure Pulumi to use TypeScript.

2. **Digital Ocean Token**: Ensure you have a Digital Ocean token set up in your environment variables or Pulumi configuration.

3. **Kubernetes Configuration**: The `kubeconfig` file will be generated when you create a Digital Ocean Kubernetes cluster. You need to ensure Pulumi has access to this configuration to manage resources in your Kubernetes cluster.

4. **Helm Chart Details**: You need the details of the `vspgwu` Helm chart like the repository URL, chart version, any values you wish to override, etc.

Now let's write the Pulumi program. First, you'll define the cluster:

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

// Create a Digital Ocean Kubernetes cluster
const cluster = new digitalocean.KubernetesCluster("do-cluster", {
    region: digitalocean.Regions.NYC1,
    version: "latest",
    nodePool: {
        size: digitalocean.DropletSlugs.DropletS2VCPU2GB,
        name: "default",
        nodeCount: 1,
    },
});

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

Once you've defined your Kubernetes cluster, you can define your Helm chart deployment:

```typescript
// Deploy the vspgwu Helm chart to the cluster
const vspgwuChart = new kubernetes.helm.v3.Chart("vspgwu-chart", {
    repo: "your-helm-chart-repository",
    chart: "vspgwu",
    version: "chart-version", // specify the chart version you wish to deploy
    // Pass values to the Helm chart via the 'values' property below if required
    values: {
        // Example of setting values; actual values depend on the `vspgwu` chart's values
        // serviceName: "vspgwu-service",
        // serviceType: "LoadBalancer",
    },
}, { provider: new kubernetes.Provider("k8s-provider", { kubeconfig: cluster.kubeConfigs[0].rawConfig }) });

// Export the URL of the vspgwu service
export const vspgwuServiceUrl = vspgwuChart.getResourceProperty("v1/Service", "vspgwu-service", "status").apply(status => status.loadBalancer.ingress[0].ip);
```

In the above code:

- We define a Digital Ocean Kubernetes cluster in the NYC1 region. You can customize the region, Kubernetes version, and droplet size based on your requirement.
- We export the `kubeconfig` which is required to interact with the Kubernetes cluster using Pulumi or any other Kubernetes management tool.
- We create an instance of `Chart`, which refers to the `vspgwu` Helm chart. You will need to specify the `repo` and `version` properties matching your Helm chart's repository and the version you wish to deploy.
- We provide an additional configuration to the Helm chart via the `values` property, which is equivalent to the `values.yaml` file or the `--set` flag in Helm CLI.
- The second parameter in the `Chart` constructor provides the `kubeconfig` from the created cluster to the Kubernetes provider.
- We also export the service URL assuming that `vspgwu` defines a `LoadBalancer` service type that exposes an IP address.

Remember to replace `your-helm-chart-repository` and `chart-version` with the actual repository URL and chart version respectively.

Once you have this program, you can deploy your infrastructure by running `pulumi up`. Ensure you have authenticated with Pulumi CLI and your default Digital Ocean configuration is set in your shell session.