Deploy the refarch-infraconfig helm chart on Opensshift

Question

Pulumi · Accepted Answer

Deploying a Helm chart on an OpenShift cluster with Pulumi is quite similar to deploying on a generic Kubernetes cluster but with additional steps given the security and networking configuration needs often associated with OpenShift.

First, ensure you have an OpenShift cluster already running. Pulumi doesn't manage the OpenShift installation itself but can manage resources within an OpenShift cluster.

Below is a TypeScript Pulumi program that deploys a Helm chart, labeled as `refarch-infraconfig`, into an OpenShift cluster. This uses the `@pulumi/kubernetes` package to work with Kubernetes and OpenShift resources:

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

// The Helm Chart can be instantiated using the Chart class.
// Assume the 'refarch-infraconfig' chart is available in a repository and its repository URL is 'https://charts.example.com/'
// chart name, repository URL, and version of the Helm chart are required properties.
const helmChart = new k8s.helm.v3.Chart("refarch-infraconfig", {
    // Replace with the actual repository URL.
    repo: "example",
    chart: "refarch-infraconfig",
    version: "1.0.0",
    namespace: "default", // Specify the namespace where the Helm chart will be installed.
    // Values in a Helm chart can be overwritten using the `values` property.
    // Specify the necessary values according to the refarch-infraconfig chart's requirements.
    values: {
        key1: "value1",
        key2: "value2",
        // ... any other necessary values ...
    },
    // OpenShift-specific configurations can be provided here if needed.
    // fetchOpts can be used to specify additional chart fetching options.
    // If your chart requires any OpenShift-specific configurations, include them in `values` or other appropriate properties.
});

// Export the resources created by the Helm Chart
export const resources = helmChart.resources;
```

Make sure you replace the placeholders with the actual values:
- `repo`: Replace `"example"` with the repository name where your Helm chart is hosted.
- `chart`: Replace `"refarch-infraconfig"` with the name of your Helm chart if different.
- `version`: Specify the chart version you wish to deploy.
- `namespace`: Replace `"default"` with the Kubernetes namespace where you want to deploy the Helm chart. Ensure that this namespace exists in your OpenShift cluster.
- `values`: This object should contain all the necessary value overrides that your specific Helm chart requires.

### Important Note:
- This program assumes that the chart is publicly accessible from the repository. If your chart is hosted in a private repository, you'll need additional configuration related to authentication.
- If your OpenShift cluster requires specific security contexts or permissions, you'll need to ensure the Helm chart includes these, or provide them through the `values`.

To run this Pulumi program:
1. Ensure you have `pulumi` CLI installed and are logged in.
2. Ensure your Pulumi stack is configured for the correct Kubernetes context pointing to your OpenShift cluster. Use `kubectl` to set the context if necessary.
3. Run `pulumi up` in the directory containing your Pulumi program.
4. Confirm the deployment.

Each resource created by the Helm chart will be managed by Pulumi and tracked in the state file associated with the stack you are running the program under.