Deploy the jx-app-sso helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy a Helm chart on a Kubernetes cluster using Pulumi, you will need to write a program that specifies the desired state of your Kubernetes resources. In this case, you want to deploy the `jx-app-sso` Helm chart. You'll be using Pulumi's Kubernetes provider to achieve this.

The primary resource involved in deploying a Helm chart with Pulumi is the `Chart` resource type. This type encapsulates a Helm chart's deployment logic in a way that Pulumi understands. The `Chart` resource in Pulumi is part of the `kubernetes` package, which allows you to interact with Kubernetes resources in a descriptive manner.

Here's a step-by-step breakdown of the process, followed by a detailed code example in TypeScript:

1. Import the necessary packages.
2. Use the `Chart` resource and specify the chart's name, version, and any custom values required by the chart.
3. (Optional) You can specify the namespace where the Helm chart should be deployed; if you don't specify one, it will deploy in the default namespace.

In the code example below, I assume that you already have a Kubernetes cluster running and that your Pulumi environment is configured with access to the cluster (typically via kubeconfig file).

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

// Create a Helm Chart resource that deploys `jx-app-sso`.
const ssoChart = new k8s.helm.v3.Chart("jx-app-sso", {
    // Replace with the repository that hosts your `jx-app-sso` Helm chart
    repo: "your_chart_repository",
    chart: "jx-app-sso",
    // Specify the chart version you want to deploy
    version: "your_chart_version",
    // Include any custom values you want to pass to the Helm chart
    values: {
        key: "value",
        // ... Other values specific to `jx-app-sso` chart
    },
    // Specify the namespace (create it if it doesn't exist)
    namespace: "sso-namespace",
});

// Export the base URL for the SSO application (if applicable)
export const ssoUrl = ssoChart.getResourceProperty("v1/Service", "jx-app-sso", "status").apply(status => {
    return status.loadBalancer.ingress[0].hostname || status.loadBalancer.ingress[0].ip;
});
```

In the `values` field of the `Chart` resource constructor, you can specify any configuration values that your Helm chart accepts. In many cases, Helm charts come with default values that are suitable for a basic deployment, but you can override them as needed. Make sure to replace `"your_chart_repository"`, `"your_chart_version"`, and the values with the actual information for your use case.

The `getResourceProperty` function is a Pulumi call that enables you to retrieve information about resources created by the Helm chart; in this case, it's used to export the URL for the SSO application.

Please replace the placeholder values with actual values that are suitable for your `jx-app-sso` Helm chart, including the `repo`, `chart`, `version`, and `values`. If the Helm chart is from a private repository, you'll need to provide credentials for accessing the repository.

Remember to run `pulumi up` to deploy the resources to your Kubernetes cluster after saving your code in a TypeScript file. Pulumi will create resources in the specified order, manage dependencies between them, and expose outputs (like the `ssoUrl` in the example) after the deployment is complete.