Deploy the pmm-server helm chart on Opensshift

Question

Pulumi · Accepted Answer

Deploying a PMM Server (Percona Monitoring and Management) Helm chart on an OpenShift cluster involves several steps with Pulumi in TypeScript. We will use Pulumi's integration with Kubernetes to accomplish this task.

The process can be broken up into a few steps:
1. Set up a Kubernetes provider pointing to OpenShift.
2. Use the `Chart` resource from the `@pulumi/kubernetes` package to deploy the Helm chart.

Before we begin, ensure that you have the following prerequisites:
- Pulumi CLI installed.
- Access to an OpenShift cluster with `kubectl` configured to connect to it.
- Helm chart details for PMM Server. Usually, this includes finding the chart repository and knowing the chart's name and version.

Here is the TypeScript program that deploys the pmm-server Helm chart to OpenShift:

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

// Set up the Kubernetes provider to point to your OpenShift cluster.
const openshiftProvider = new kubernetes.Provider("openshift", {
    // Assuming kubectl is already configured to connect to OpenShift.
    // If kubectl is not configured, you can pass the kubeconfig content directly.
});

// Information about the Helm chart
const chartName = "pmm-server";
const chartRepoUrl = "https://percona.github.io/percona-helm-charts/";
const chartVersion = "x.y.z"; // Replace with the Helm chart's version.

// Deploy the PMM Server Helm chart
const pmmServerChart = new kubernetes.helm.v3.Chart("pmm-server", {
    chart: chartName,
    version: chartVersion,
    fetchOpts: {
        repo: chartRepoUrl,
    },
    // Set the namespace where the Helm chart will be installed.
    // OpenShift typically uses "openshift" for system resources.
    namespace: "default", // Replace with the namespace of your choice.
}, { provider: openshiftProvider });

// Export the Helm chart name
export const helmChartName = pmmServerChart.status.name;
```

Explanation:

- We import the necessary Pulumi libraries for Kubernetes. These are required to write Kubernetes resources using Pulumi.
- Next, we set up a Kubernetes provider pointing to the OpenShift cluster. This tells Pulumi how to communicate with your OpenShift cluster. In this example, we are assuming that your `kubectl` is already set up to connect to OpenShift. Otherwise, you would pass in the kubeconfig directly.
- The `chartName`, `chartRepoUrl`, and `chartVersion` are set to the relevant information for the PMM Server Helm chart. You should replace `chartVersion` with the specific version you wish to deploy.
- We create a new instance of a Helm `Chart` using `kubernetes.helm.v3.Chart`. This will instruct Pulumi to deploy the chart from the repo to the specified namespace.
- Lastly, we export the Helm chart's name to view it in the Pulumi console after deployment.

Make sure to replace the placeholder `x.y.z` with the actual chart version you intend to deploy. You may also need to customize the `namespace` based on where you want to deploy the PMM Server in your OpenShift cluster.

Run this program with `pulumi up`, and Pulumi will provision the PMM Server as described.