Deploy the s3manager helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy the `s3manager` helm chart on a Rancher-managed Kubernetes cluster using Pulumi, we will be using the `rancher2` package. The `rancher2` package provides the necessary resources to interact with a Rancher server and deploy Helm charts to the Kubernetes clusters it manages.

Before proceeding with the Pulumi program, ensure that:

1. You have access to a Rancher server and the Kubernetes cluster is already provisioned and managed by Rancher.
2. You have installed Pulumi and configured it with credentials that allow it to authenticate with Rancher.
3. You have the `s3manager` Helm chart available in a Helm repository or as a local chart that can be pointed to during deployment.

Here is a program that accomplishes the deployment of a Helm chart to a Rancher-managed cluster using Pulumi with TypeScript:

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

// The Rancher cluster where you want to deploy the s3manager Helm chart.
const clusterName = "my-rancher-cluster";

// Obtain a reference to the target Rancher cluster.
const cluster = new rancher2.Cluster(clusterName, {/* ... */});

// Helm chart installation details.
const s3managerChart = new k8s.helm.v3.Chart("s3manager-chart", {
    chart: "s3manager",
    version: "1.0.0", // Change to the desired chart version.
    fetchOpts: {
        repo: "http://my-helm-repo.org/charts", // Replace with the location of your Helm chart.
    },
    // Include any custom values for configuring the s3manager Helm chart.
    // values: {
    //     serviceType: "ClusterIP",
    //     ...
    // }
}, { provider: cluster }); // Make sure to pass the Rancher cluster as the provider.

export const chartName = s3managerChart.metadata.name; // An output that gives you the name of the Helm chart.
```

This Pulumi program does the following:

1. It imports the necessary Pulumi packages, `rancher2` for interacting with Rancher and `kubernetes` for working with Kubernetes objects.
2. Declares a constant `clusterName` which should be set to the name of the Rancher cluster you want to target.
3. Retrieves the existing Rancher cluster managed by Rancher using `new rancher2.Cluster`.
4. Deploys the `s3manager` Helm chart to the Kubernetes cluster using `new k8s.helm.v3.Chart`.
5. Specifies the location of the Helm chart repository where `s3manager` is hosted with `fetchOpts.repo`.
6. Optionally, you can pass configuration values to customize the deployment of the s3manager helm chart within the `values` section.
7. Sets the provider context to the imported Rancher cluster to ensure that operations are performed on the correct cluster.

After preparing this program, you would run `pulumi up` to execute the deployment. Make sure to replace placeholders (like the chart version, chart repository URL, and configuration values) with actual values relevant to your use case.

If you want to know more about the available configurations for the `rancher2` package and the Helm chart deployment, you can refer to the documentation:

- Rancher2 Pulumi: [Rancher2](https://www.pulumi.com/registry/packages/rancher2/api-docs/)
- Pulumi Kubernetes Helm Chart: [Helm](https://www.pulumi.com/registry/packages/kubernetes/api-docs/helm/v3/chart/)

Remember that this program will make changes to your Rancher-managed cluster when executed, and it should be reviewed carefully to ensure that it meets your exact specifications before running it in a production environment.