Deploy the irods-csi-driver helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the `irods-csi-driver` Helm chart on a Rancher-managed Kubernetes cluster, you will need to perform several steps:

1. Ensure you have a Rancher-managed Kubernetes cluster available.
2. Install and configure the Pulumi CLI and set up the `rancher2` provider.
3. Write a Pulumi program to deploy the `irods-csi-driver` Helm chart.

Here is a Pulumi TypeScript program that demonstrates how to deploy a Helm chart on Rancher:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as k8s from "@pulumi/kubernetes";
import * as rancher2 from "@pulumi/rancher2";

// Create a new rancher2 provider instance
const rancher2Provider = new rancher2.Provider("rancher", {
    // You must have an API key and configure these variables with the appropriate values.
    apiToken: "xxxxx",
    apiUrl: "https://your-rancher-api-url.com",
    // Depending on the Rancher Server version and cluster setup, additional configurations may be required.
});

// Get a reference to the cluster where we want to deploy our application
const clusterId = "your-cluster-id"; // Replace with the actual cluster ID
const cluster = new rancher2.Cluster("cluster", {id: clusterId}, {provider: rancher2Provider});

// Deploying the irods-csi-driver using the Helm chart
const irodsCsiDriverChart = new k8s.helm.v3.Chart("irods-csi-driver-chart", {
    // The chart and the version must exist in the Helm repository accessible by the Kubernetes cluster.
    chart: "irods-csi-driver",
    version: "x.y.z", // Replace with the chart version you want to deploy
    // Values can be set to customize the Helm chart. Check the chart's `values.yaml` for configurable options.
    values: {
        // Specify any values that you want to override. This is just an example.
        someConfig: "someValue",
    },
}, {
    provider: new k8s.Provider("k8s-provider", { // Ensure you configured the kubeconfig correctly
        kubeconfig: cluster.kubeConfig, // This will use the kubeconfig of the referenced Rancher cluster
    }),
    dependsOn: [cluster], // Ensure that the cluster is set up before deploying the chart
});

// Export the name of the chart
export const chartName = irodsCsiDriverChart.name;
```

This program consists of several important parts:

- **Rancher2 Provider**: Before running this program, ensure that you have set up the Rancher2 provider with the appropriate credentials. You need to replace `"xxxxx"` with your actual Rancher API token and `"https://your-rancher-api-url.com"` with the URL of your Rancher server.

- **Cluster Configuration**: You need to have the ID of the Kubernetes cluster managed by Rancher that you are targeting. Replace `"your-cluster-id"` with the actual cluster ID.

- **Helm Chart Deployment**: The `k8s.helm.v3.Chart` class is used to deploy a Helm chart. In this case, we're deploying the `irods-csi-driver` chart. You need to specify the Helm chart's name, the version, and any custom values that you want to override.

- **Dependencies and Kubeconfig**: The `dependsOn` attribute ensures that the Helm chart deployment waits for the Rancher cluster to be ready. The `kubeconfig` attribute of the `k8s` provider is set to the kubeconfig of the Rancher cluster. This is critical for Pulumi to interact with the right Kubernetes cluster.

Note that you'd also have to make sure you have access to the Helm repository where the `irods-csi-driver` chart is hosted and that the values match the configurable options of the Helm chart.

Once everything is set up, you can deploy this Pulumi program using standard Pulumi CLI commands:

```shell
pulumi up
```

Remember to replace placeholders with actual values relevant to your Rancher and Kubernetes configuration.