Deploy the banzaicloud-logging-operator-monitoring helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the `banzaicloud-logging-operator-monitoring` Helm chart on an Azure Managed OpenShift service using Pulumi, you will follow these steps:

1. Create an OpenShift Managed Cluster in Azure.
2. Deploy the Helm chart to the OpenShift cluster.

We'll use two Pulumi resources from the `azure-native` and `kubernetes` packages to achieve this. The `azure-native.containerservice.OpenShiftManagedCluster` resource will represent the Azure OpenShift Managed Cluster. The `kubernetes.helm.v3.Chart` (from the `@pulumi/kubernetes` package) resource will be used to deploy the Helm chart on the cluster once it's up and running.

Here is the TypeScript program that accomplishes this deployment:

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

// Step 1: Set up the Azure Managed OpenShift Cluster

// Create a new resource group if you don't have one already
const resourceGroupName = "openshiftResourceGroup";
const resourceGroup = new azure_native.resources.ResourceGroup(resourceGroupName);

// Specify the location to deploy the resources
const location = "West Europe";

// Create the OpenShiftManagedCluster
const clusterName = "myManagedOpenShiftCluster";
const openshiftManagedCluster = new azure_native.containerservice.OpenShiftManagedCluster(clusterName, {
    resourceGroupName: resourceGroup.name,
    // See more options in the docs: https://www.pulumi.com/registry/packages/azure-native/api-docs/containerservice/openshiftmanagedcluster/
    location,
    openShiftVersion: "v3.11",
    networkProfile: { // Add your network details here
        vnetId: "/subscriptions/subId/resourceGroups/rg1/providers/Microsoft.Network/virtualNetworks/vnet1",
        peerVnetId: "/subscriptions/subId/resourceGroups/rg1/providers/Microsoft.Network/virtualNetworks/vnet2",
    },
    masterPoolProfile: {
        name: "master",
        count: 3,
        vmSize: "Standard_D4s_v3",
    },
    // More properties here...
});

// Step 2: Deploy the banzaicloud-logging-operator-monitoring Helm chart

// Retrieve the Kubeconfig from the created OpenShift cluster to set up the Kubernetes Provider
const kubeconfig = openshiftManagedCluster.kubeconfig.apply(cfg => Buffer.from(cfg, "base64").toString());

// Create a Kubernetes provider instance using the Kubeconfig from the OpenShift cluster
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig,
});

// Deploy the banzaicloud-logging-operator-monitoring Helm chart on the created cluster
const loggingOperatorMonitoringChart = new k8s.helm.v3.Chart("banzaicloud-logging-operator-monitoring", {
    chart: "banzaicloud-logging-operator-monitoring",
    version: "3.9.4", // Specify the chart version you want to deploy
    // Replace 'repoURL' with the URL where the chart is hosted
    repositoryOpts: {
        repo: "https://banzaicloud.com",
    },
    // Provide values for the Helm chart or use a values file
    values: {
        // Specify the values according to the Helm chart you are deploying
    },
}, { provider: k8sProvider });

// Export the cluster's Kubeconfig
export const kubeConfig = kubeconfig;
```

### Explanation

- **Resource Group**: The `ResourceGroup` resource in this program is created to organize all related Azure resources for the OpenShift cluster.
- **OpenShift Managed Cluster**: The `OpenShiftManagedCluster` is the core resource that represents the OpenShift cluster on Azure. You'll need to adjust properties like `openShiftVersion`, `networkProfile`, `agentPoolProfiles`, etc., according to your specific requirements.
- **Kubernetes Provider**: The Kubeconfig output of `OpenShiftManagedCluster` is converted from a base64 string to a regular string and is used to create an instance of `k8s.Provider`. This is required for Pulumi to communicate with your Kubernetes cluster.
- **Helm Chart**: The `Chart` resource is where the `banzaicloud-logging-operator-monitoring` Helm chart is applied to the Kubernetes cluster. Replace `version`, `repositoryOpts`, and `values` with appropriate values for your deployment. The chart resources will be created, managed, and versioned in sync with your deployment lifecycle by Pulumi.
- **Kubeconfig Export**: Finally, the program exports the kubeconfig needed to interact with the Kubernetes cluster, so you can use `kubectl` or other Kubernetes tools with your new OpenShift cluster.

When running this Pulumi program, ensure that you have the necessary Azure credentials configured in your environment, and you have installed the `@pulumi/azure-native` and `@pulumi/kubernetes` packages. To actually execute the deployment, you would run `pulumi up` from your command line in the directory where this Pulumi program is saved.