Deploy the rh-sso helm chart on Opensshift

Question

Pulumi · Accepted Answer

To deploy the RH-SSO (Red Hat Single Sign-On) Helm Chart on an OpenShift cluster using Pulumi, you would typically start by setting up a Pulumi project and writing a program in TypeScript that defines the necessary resources.

First, you need to set up an OpenShift cluster where you will deploy the chart. Pulumi can manage OpenShift clusters on various cloud providers, such as AWS, Azure, or Google Cloud, using the respective Pulumi resources. However, managing OpenShift clusters is an extensive topic on its own and could be subject to the specific configurations and requirements for your deployment.

For the purpose of this explanation, let’s assume that you already have an OpenShift cluster running and that you have kubectl access configured for it.

Next, you will use Pulumi to deploy the RH-SSO Helm Chart. Pulumi's Kubernetes provider allows you to deploy Helm charts in a declarative way using code. You would need to instantiate a `Chart` resource from Pulumi's Kubernetes provider, specifying the necessary details for the RH-SSO chart, such as the repository URL and any values you want to override.

Here is a step-by-step TypeScript program for deploying the RH-SSO Helm Chart on an existing OpenShift cluster using Pulumi:

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

// Create a Helm Chart resource for the RH-SSO Helm chart.
// You'd replace `CHART_VERSION` with the version number of the RH-SSO Helm chart you want to deploy.
// If needed, replace `https://helm-repo/repository/` with the actual repository URL of the RH-SSO Helm chart.
const rhSsoChart = new k8s.helm.v3.Chart("rh-sso", {
    chart: "rh-sso", // The name of the chart, replace if the chart name is different.
    version: "CHART_VERSION", // The version of the chart.
    fetchOpts: {
        repo: "https://helm-repo/repository/", // The repository URL where the chart is located.
    },
    // Define any values that you need to override for the RH-SSO deployment.
    // The following is just an example of how to override values.
    values: {
        keycloak: {
            replicas: 1,
            image: {
                repository: "registry.redhat.io/rh-sso-7/sso73-openshift",
                tag: "1.0",
            },
        },
        // Add any additional value overrides here.
    },
});

// Export the URL of the RH-SSO service (if needed).
export const serviceUrl = rhSsoChart.getResourceProperty("v1/Service", "rh-sso", "status").apply(status => status.loadBalancer.ingress[0].hostname || status.loadBalancer.ingress[0].ip);
```

This Pulumi program would be part of a larger Pulumi project that includes configuration details for connecting to your Kubernetes cluster. 
When you run `pulumi up`, Pulumi will apply this configuration to your cluster and deploy the RH-SSO helm chart as specified.

Make sure to replace `CHART_VERSION` with the specific version number of the RH-SSO Helm chart you wish to deploy. Also, ensure that you have the correct repository URL (specified in the `fetchOpts.repo` field).

The `values` object allows you to customize the helm deployment. This should match the `values.yaml` file or custom values you wish to override for your RH-SSO deployment.

Lastly, this example exports the URL of the deployed service—if your service is exposed through a LoadBalancer and you want to make the URL available as a stack output.

Remember that before deploying this program, you need to install Pulumi and configure it with access to your Kubernetes cluster. You also have to install Node.js and the @pulumi/kubernetes package if not already installed.

For more information and detailed instructions on how to use Pulumi with Kubernetes, you can refer to the [Pulumi Kubernetes documentation](https://www.pulumi.com/docs/intro/cloud-providers/kubernetes/).