Deploy the keycloak-proxy helm chart on Kubernetes

Question

Pulumi · Accepted Answer

To deploy a Helm chart on Kubernetes using Pulumi, you should utilize the `kubernetes.helm.v3.Chart` resource from the Pulumi Kubernetes provider. This resource allows you to deploy Helm charts into a Kubernetes cluster.

Here's a Pulumi program in TypeScript to deploy the `keycloak-proxy` Helm chart. This chart will be fetched from its respective repository and deployed to the Kubernetes cluster currently configured in your Pulumi environment.

Before deploying the Helm chart, ensure you have installed Pulumi, configured your Pulumi CLI, have access to a Kubernetes cluster, and have kubectl configured to communicate with your cluster.

### Detailed Pulumi Program Explanation:

1. **Import necessary packages**: The Kubernetes package to interact with Kubernetes, defines the Helm chart resource.
2. **Create a Helm Chart resource**: The `kubernetes.helm.v3.Chart` class represents a Helm chart in a Pulumi program. You must provide the name of the chart, the name of the release, and configuration details such as the chart repository.
3. **Deploy the Helm chart**: The Helm Chart resource declaration instructs Pulumi to deploy the chart when you run the `pulumi up` command.

Here's the Pulumi TypeScript program for deploying the `keycloak-proxy` chart:

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

// Create an instance of the Kubernetes Helm Chart component to deploy keycloak-proxy.
// The "keycloak-proxy" argument is the release name, and the Chart resource properties specify
// the repository and name of the chart.
const keycloakProxyChart = new kubernetes.helm.v3.Chart("keycloak-proxy", {
    chart: "keycloak-gatekeeper", // The name of the chart. Make sure this is the correct name of the keycloak-proxy chart you want to deploy.
    version: "x.x.x", // Specify the version of the keycloak-proxy Helm chart you wish to deploy.
    fetchOpts: {
        repo: "https://charts.your-repo.com", // Replace with the actual Helm repository URL that hosts the keycloak-proxy chart.
    },
    // Values to pass to the Helm chart, which configure keycloak-proxy.
    // Replace with the actual configuration values you need for keycloak-proxy.
    values: {
        // Example configuration values; modify these with actual values.
        keycloakUrl: "https://keycloak.example.com",
        clientId: "proxy-client",
        clientSecret: "proxy-client-secret",
    },
});

// Export the Keycloak Proxy's service name so you can easily access it later
export const serviceName = keycloakProxyChart.getResourceProperty("v1/Service", "keycloak-proxy", "metadata").apply(m => m.name);
```

In this example, replace `"x.x.x"` with the actual version of the `keycloak-gatekeeper` chart you wish to deploy. You should also replace `"https://charts.your-repo.com"` with the correct Helm chart repository URL where the Keycloak proxy chart is hosted.

The `values` field is a TypeScript object representing the `values.yaml` typically found in Helm charts. You should replace the example configuration values with the necessary values to configure your Keycloak proxy deployment.

After the program is prepared, use the Pulumi CLI to execute it:
1. Run `pulumi up` to preview and deploy the changes.
2. Inspect the output and check that everything looks correct.
3. Confirm the deployment to proceed and apply the changes to your cluster.

This will instruct Pulumi to provision the resources defined in your Pulumi program in your Kubernetes cluster. If the deployment succeeds, the service name of the deployed Keycloak proxy will be exported, and you can use it to interact with Keycloak proxy or include it in other resources as needed.

Keep in mind that the actual chart name and values you need might differ - consult the documentation of the keycloak-proxy Helm chart you wish to deploy for exact details.