Deploy the contour-operator helm chart on Opensshift

Question

Pulumi · Accepted Answer

Deploying a Helm chart on an OpenShift cluster involves a few steps that are quite similar to deploying on a standard Kubernetes cluster. You'll need to set up a Pulumi project with the correct configuration to interact with your OpenShift cluster. Since OpenShift is Kubernetes-based, we can use Pulumi's Kubernetes Provider to manage resources in an OpenShift cluster.

In this scenario, we want to deploy the `contour-operator` Helm chart. Contour is a Kubernetes ingress controller using Envoy proxy.

Here's a step-by-step on how to deploy this Helm chart onto OpenShift with Pulumi:

1. Ensure that you have access to your OpenShift cluster and your `kubeconfig` is correctly set up.
2. We’ll be using the `kubernetes` package in Pulumi to interact with the OpenShift cluster.
3. We'll instantiate a `Chart` resource in Pulumi, specifying the `contour-operator` Helm chart's repository URL and the chart name.
4. The `Chart` resource will be the representation of our Helm release within the Pulumi program.

Here is the TypeScript program that performs these actions:

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

// Define the repository URL for the helm chart.
const repoURL = "https://projectcontour.io/contour-operator/";

// Create a helm chart resource for the contour-operator,
// specifying the version and chart name, along with any other necessary parameters.
const contourOperatorChart = new k8s.helm.v3.Chart("contour-operator-chart", {
    repo: repoURL,
    chart: "contour-operator",
    // You might need to specify the namespace where you want to deploy your Helm chart
    namespace: "your-namespace", // Replace with the actual namespace
    values: {
        // Custom values you want to override in the Helm chart
    },
    // Other parameters like version can also be specified if needed.
});

// Export the name of the chart we just deployed
export const chartName = contourOperatorChart.metadata.name;
```

Make sure to replace `"your-namespace"` with the namespace where you want to deploy the `contour-operator` chart.

### Important Notes:

- This program assumes you've already got your Kubernetes Pulumi provider configured to target your OpenShift cluster. If not, you might need to set up the provider with the path to your `kubeconfig` or with the appropriate context if it's different from the default.
  
- `values` is set as an empty object in this example, but you could add any configuration overrides that are specific to `contour-operator` as key-value pairs within that object.

- `namespace` should be set to the namespace where you wish to deploy your contour-operator. If the namespace doesn't exist, you might need to create it using Pulumi before deploying the chart or set the `createNamespace` option to `true` as part of the `ChartOpts`.

- The `Chart` resource encapsulates the deployment of a Helm chart as a first-class Pulumi resource. This includes capabilities like reporting the status back to Pulumi and full support for previews and updates.

Remember to run `pulumi up` in your Pulumi project directory to deploy the resources defined in this program. This command will build your Pulumi program, show you a preview of the changes it will make to your infrastructure, and prompt you to confirm these before proceeding with the deployment.