Deploy the standard-service helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy a Helm chart on an OpenShift cluster using Pulumi, you will use the `@pulumi/kubernetes` package which provides resources for managing Kubernetes resources, including Helm charts. OpenShift is a Kubernetes distribution, and so Pulumi works with OpenShift in much the same way it does with Kubernetes.

In this program, I assume that you have an existing OpenShift cluster and the `kubeconfig` file to authenticate to your cluster is correctly set up in your environment. Pulumi uses this file to connect to your OpenShift cluster.

You will be deploying the `standard-service` Helm chart. Depending on the Helm chart you want to deploy, you may need to provide additional configuration parameters specific to the Helm chart's requirements. The `values` object in our program will be the place to include such configurations.

Below, I provide you with a Pulumi TypeScript program that defines a Helm chart resource to be deployed on an OpenShift cluster. Remember to install the Pulumi CLI and configure it for use with your OpenShift cluster beforehand.

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

// Define the Helm chart release. This example assumes `standard-service` is a chart that
// exists in a reachable Helm chart repository. Replace `repo` with the URL of the chart repository
// and `version` with the chart version you wish to deploy.

const standardServiceChart = new k8s.helm.v3.Chart("standard-service", {
    chart: "standard-service",
    version: "1.2.3", // Replace with the target version of your chart
    namespace: "default", // Specify the namespace to deploy into, if not 'default'
    fetchOpts: {
        repo: "http://charts.myorg.com/", // Replace with the URL to the chart repository
    },
    // If your chart requires specific values, you can include them as below.
    values: {
        // Replace these with the actual configuration values required by your chart.
        serviceType: "ClusterIP",
        replicaCount: 3,
        // ... add other configuration options as needed
    },
});

// Export the URL for the service once it is ready.
export const serviceUrl = standardServiceChart.getResourceProperty(
    "v1/Service", "standard-service", "status"
).apply(status => status.loadBalancer.ingress[0].ip);
```

In this program:

- We import the Pulumi Kubernetes SDK.
- We create a new instance of `Chart` which Pulumi understands to be a Helm chart.
- The `chart` property points to the name of the chart you wish to deploy.
- The `version` and `repo` properties are defined to point to the specific version of the Helm chart and its repository URL, which you will need to replace with the actual values.
- We define a `values` object to hold any configuration values your chart requires. Replace the placeholders with the actual values needed by the `standard-service` chart.
- Lastly, we use the `getResourceProperty` method to export the service URL, which assumes the chart exposes a service with an external IP.

This code snippet assumes the Helm chart and values are correct and that the Helm chart exposes a service with a load balancer to provide an IP address. Make sure to replace placeholders with actual values from the `standard-service` Helm chart you're planning to deploy.

After writing this Pulumi program, you would run `pulumi up` in your CLI to deploy it to your OpenShift cluster.