Deploy the kjournal helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the `kjournal` Helm chart on an Azure Managed OpenShift Service, we'll walk through the following steps:

1. Provision an Azure OpenShift Managed Cluster using Pulumi's `azure-native` provider.
2. Deploy the `kjournal` Helm chart to the OpenShift cluster using Pulumi’s `kubernetes` provider.

We'll use the `azure-native.containerservice.OpenShiftManagedCluster` resource to create an OpenShift Managed Cluster. This resource allows us to specify various configuration options such as location, resource name, OpenShift version, and node pool profiles.

Once the OpenShift cluster is up and running, we can use the `kubernetes.helm.v3.Chart` resource from the `kubernetes` provider to deploy Helm charts on our cluster. To deploy a chart, you will need to point to the repository where the chart is located, or if it's a local chart, you can specify a path to the chart.

Here's a Pulumi TypeScript program that accomplishes this:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as azureNative from "@pulumi/azure-native";
import * as k8s from "@pulumi/kubernetes";

// Provision an Azure OpenShift Managed Cluster
const resourceGroupName = "openshiftResourceGroup";
const openShiftClusterName = "openshiftCluster";

const resourceGroup = new azureNative.resources.ResourceGroup(resourceGroupName, {
    resourceGroupName,
});

const openShiftCluster = new azureNative.containerservice.OpenShiftManagedCluster(openShiftClusterName, {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    openShiftVersion: "4.3", // Make sure to use a supported OpenShift version
    // In real scenarios, use a more complex setup as per your requirements
    masterPoolProfile: {
        name: "master", // Pool name for the master nodes
        count: 3, // Count of master nodes
        vmSize: "Standard_DS3_v2", // Size of the VM instances
    },
    agentPoolProfiles: [{
        name: "agentpool", // Pool name for the agent nodes
        count: 3, // Count of agent nodes
        vmSize: "Standard_DS3_v2", // Size of the VM instances
        role: "Compute",
    }],
});

// Deploy the kjournal helm chart to the OpenShift cluster
const kjournalChart = new k8s.helm.v3.Chart("kjournal", {
    chart: "kjournal",
    // Specify the repository that contains the kjournal chart if it's not a local chart
    // Example: repo: "http://my-helm-chart-repo/kjournal"
    // If the kjournal chart is in a private repository or requires additional configurations,
    // you can set fetchOpts accordingly, repo authentication, etc.
    namespace: "default", // Specify the namespace for the deployment, or choose another namespace
    // You can also specify values to customize the deployment. Example:
    // values: { /* Your configuration values here */ },
}, { provider: new k8s.Provider("k8s-provider", { kubeconfig: openShiftCluster.config.rawConfig }) });

// Export the OpenShift cluster endpoint to access the OpenShift web console
export const openShiftConsoleUrl = openShiftCluster.consoleUrl;
export const kubeconfig = openShiftCluster.config.rawConfig;
```

In this program:

- We start by importing the required Pulumi modules and creating a new resource group for our OpenShift cluster using `azureNative.resources.ResourceGroup`.
- Next, we define the OpenShift Managed Cluster with `azureNative.containerservice.OpenShiftManagedCluster` and provide it with the necessary configurations such as the version, size, and count of master and agent nodes.
- We then create a new Helm chart deployment using `k8s.helm.v3.Chart`, where we specify the chart name as "kjournal". If the chart is hosted in a Helm repository, you'll need to specify the `repo` property. Otherwise, you can refer to a local path using the `path` property.
- Finally, we're exporting the OpenShift console URL and the raw kubeconfig, which can be used to interact with the Kubernetes API server running in the OpenShift cluster.

Remember to replace the placeholder values with actual values that suit your needs, such as the OpenShift version, VM sizes, node counts, and the Helm chart's repository. After deploying this Pulumi program, you can access the OpenShift console using the provided URL.