Deploy the cloudwatch-exporter helm chart on Opensshift

Question

Pulumi · Accepted Answer

Deploying a Helm chart to an OpenShift cluster using Pulumi involves several steps. First, you'll need access to an OpenShift cluster. I'll assume this part is already taken care of and that you're looking to install the "cloudwatch-exporter" Helm chart specifically. Here's a high-level overview of the steps:

1. Configure the Pulumi program to use the Kubernetes provider, which supports deploying resources to OpenShift due to OpenShift's Kubernetes compatibility.
2. Define the Helm chart resource, referencing "cloudwatch-exporter" and providing the necessary configuration.

Before running this Pulumi program, ensure that you have:

- a running OpenShift cluster,
- `kubectl` configured to connect to your cluster,
- the `helm` command-line tool installed (if you need to manually inspect Helm or fetch charts), and
- Pulumi CLI installed and set up.

Now, here is the TypeScript code to define the deployment of a "cloudwatch-exporter" Helm chart:

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

// Create an instance of the Kubernetes provider connected to your OpenShift cluster.
const provider = new kubernetes.Provider('openshift-provider', {
    // Depending on your setup, you might not need to specify any additional arguments,
    // because Pulumi could automatically configure the provider using your kubeconfig file.
});

// Deploy CloudWatch Exporter Helm chart to the OpenShift cluster using the specified provider.
const cloudwatchExporterChart = new kubernetes.helm.v3.Chart('cloudwatch-exporter-helm-chart', {
    chart: 'cloudwatch-exporter',
    // You will need to specify the correct repository that contains the cloudwatch-exporter chart,
    // For example, this might be hosted on a Helm repository or a specific URL.
    // repo: 'https://helm-repository-containing-cloudwatch-exporter.com/',
    // You can specify values to customize the Helm chart deployment.
    // values: {
    //     key: value,
    // },
    // version: the version of the chart you want to deploy.
}, { provider });

// Export the URL for the deployed service, so you can access it.
// You will need to modify the resource name below (`cloudwatchExporterChart`) to reference
// the actual service deployed by your Helm chart and fetch its load balancer or ingress URL.
export const serviceUrl = cloudwatchExporterChart.getResource('v1/Service', 'cloudwatch-exporter-service')
    .status.loadBalancer.ingress[0].hostname;
```

In the `cloudwatchExporterChart` resource definition, you'll need to provide specific information such as the repository where the "cloudwatch-exporter" chart is located (`repo` key in the options). If you know the exact values that need to be customized for your Helm chart, you can specify them in the `values` object.

The final export (`serviceUrl`) is an example of how you might expose an endpoint from your deployed resources. This line needs to be adjusted based on the specifics of the "cloudwatch-exporter" Helm chart and how it exposes its service.

Please make sure you fill in the values for the `repo` key and any other required information specific to your use case before running the Pulumi program. Once you've customized and run this code with `pulumi up`, it will deploy the "cloudwatch-exporter" Helm chart to your OpenShift cluster.