Deploy the schema-registry-ui helm chart on Rancher

Question

Pulumi · Accepted Answer

To deploy a Helm chart like the schema-registry-ui on Rancher through Pulumi, you need to create and configure resources in a specific sequence. We will begin by setting up the Rancher cluster, and then we will deploy the Helm chart onto that cluster.

The Pulumi program for deploying a Helm chart on Rancher would typically include the following steps:

1. **Creating a Rancher Cluster**: Using the `rancher2.Cluster` resource, you would define the configuration for your Kubernetes cluster on Rancher.

2. **Deploying the Helm Chart**: Once the cluster is set up, you use Pulumi's Helm Chart resource to deploy schema-registry-ui. This will require the appropriate Helm repository to be added to your local environment, and the chart name/version details to be specified correctly.

Below is a program written in TypeScript that demonstrates how this can be done using Pulumi. This example assumes that you have already set up your Rancher instance and have access to it. The Pulumi `rancher2` provider will use the configuration to interact with your Rancher API.

Please note that this example is somewhat generic because the specific details such as cluster configuration, Helm chart version, values, and parameters will vary based on your particular use case and environment.

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

// Step 1: Creating a Rancher Cluster
// Replace the placeholder values with your specific configuration details.
const cluster = new rancher2.Cluster("schema-registry-ui-cluster", {
    // Define your cluster configuration here
    // This is an example configuration, please replace with your actual cluster config
    name: "schema-registry-ui-cluster",
    // ... other required configurations for the cluster
});

// Step 2: Deploying a Helm Chart to the Rancher Cluster
// This part uses Pulumi's Kubernetes provider to deploy a Helm chart onto the cluster created above
// Make sure you have added the Helm repository where `schema-registry-ui` chart is present
const schemaRegistryUIChart = new k8s.helm.v3.Chart("schema-registry-ui", {
    repo: "confluentinc", // replace with the correct Helm repository
    chart: "schema-registry-ui", // replace with the correct chart name
    version: "1.0.0", // specify the correct chart version
    // Provide any custom values file or configuration
    values: {
        // ... custom values for schema-registry-ui chart
    },
}, { provider: cluster }); // Here the provider links this Helm chart to the Rancher cluster resource

// Export the Rancher cluster name
export const clusterName = cluster.name;

// Export the endpoint for the schema registry UI
export const schemaRegistryUIEndpoint = pulumi.interpolate`http://${cluster.name}.example.com`; // replace with your actual endpoint

```

The above code first sets up a Rancher cluster using the `rancher2.Cluster` resource. The necessary details such as the name of the cluster and any other configurations specific to your cloud provider or setup should be specified there.

Then, using the `k8s.helm.v3.Chart` resource, you deploy the `schema-registry-ui` Helm chart onto your newly created Rancher cluster. Here, `repo` refers to the name of the Helm repository where the chart is located, `chart` is the name of the chart you want to deploy, and `version` specifies the version of the chart. The `values` block allows you to provide custom configuration settings for your Helm chart.

The `provider` option passed in the Helm chart resource options ensures that the chart is installed on the Rancher cluster you have configured.

Lastly, the code exports the cluster name and the endpoint where the schema registry UI should be accessible. You would replace the placeholder `http://${cluster.name}.example.com` with the actual endpoint based on your environment and DNS configuration.

Please replace all placeholder values and configurations with the actual details of your Rancher setup and schema-registry-ui deployment requirements before running the program.