Deploy the aws-iam-role-service-account helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy a Helm chart for `aws-iam-role-service-account` on OpenShift using Pulumi, we'll need to do the following:

1. Set up an OpenShift cluster. For this example, we'll assume that the cluster is already set up and that you have `kubectl` configured appropriately to communicate with the cluster.

2. Install Pulumi and set up your Pulumi project. Ensure you have Pulumi installed and have created a Pulumi project that targets the Kubernetes provider. Please refer to the Pulumi documentation for [getting started](https://www.pulumi.com/docs/get-started/kubernetes/).

3. Define the Kubernetes provider in Pulumi for OpenShift. Since OpenShift is a Kubernetes distribution, we can use Pulumi's Kubernetes provider to interact with it.

4. Define the Helm chart resource for `aws-iam-role-service-account`. The `kubernetes.helm.v3.Chart` resource will be used to deploy the Helm chart.

Before we proceed, make sure you have the correct access permissions configured both in OpenShift and AWS. This will typically involve setting up an IAM role in AWS and associating it with a Kubernetes Service Account in OpenShift. Ensure that both `aws-cli` and `oc` (OpenShift CLI) are configured properly on your system.

Now, let's go through the Pulumi program to deploy the Helm chart in OpenShift. This example assumes that the Helm chart for `aws-iam-role-service-account` is available in a Helm repository. We'll use TypeScript for the Pulumi program.

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

// Step 1: Create a new Kubernetes provider instance pointing to your OpenShift cluster
const provider = new k8s.Provider('openshift', {
  // Assuming you have configured kubectl to communicate with OpenShift
  // This will pick up the current context from your kubeconfig by default
  kubeconfig: process.env.KUBECONFIG,
});

// Step 2: Deploy the 'aws-iam-role-service-account' Helm chart on OpenShift
const awsIamRoleServiceAccountChart = new k8s.helm.v3.Chart('aws-iam-role-sa', {
  // Replace `REPO_URL` with the URL of the Helm repository containing the chart
  repo: 'REPO_URL',
  chart: 'aws-iam-role-service-account',
  // Set any values required by the Helm chart
  values: {
    /* 
    Here you'll typically have configuration that will include:
    - The AWS Role ARN that you want to associate
    - The name of the Service Account in Kubernetes
    -
    Make sure these values are set according to the Helm chart's requirements.
    */
  },
}, { provider });

// Export related information if necessary
export const chartName = awsIamRoleServiceAccountChart.metadata.name;
```

The above Pulumi program will import the necessary Pulumi modules, create a Kubernetes provider that uses the current context from your kubeconfig (which should be pointing to your OpenShift cluster), and finally deploy the `aws-iam-role-service-account` Helm chart using the `k8s.helm.v3.Chart` resource.

Please replace `REPO_URL` with the actual URL of the Helm repository where your chart is hosted. The `values` in the `Chart` resource constructor should be filled with the configuration needed by the Helm chart, which could include the AWS Role ARN and the Kubernetes Service Account name, among others. This configuration will be specific to the Helm chart you're using.

After running this Pulumi program, it will initiate a deployment using Helm, which will result in resources being created in your OpenShift cluster that associate an AWS IAM role with a Kubernetes service account as specified by the chart's functionality.

To run this Pulumi program, use the following Pulumi CLI commands after setting up your project:

```shell
pulumi up
```

This command will preview and deploy your changes. Please ensure you understand the changes that will be applied and confirm them when you run these commands.