Deploy the spring-boot-demo helm chart on Azure Managed Openshift Service

Question

Pulumi · Accepted Answer

To deploy the `spring-boot-demo` helm chart on Azure Managed Openshift Service, you will need to follow these steps:

1. **Provision an Azure Red Hat OpenShift cluster**: You will use Pulumi's `azure-native.redhatopenshift.OpenShiftCluster` resource to create an OpenShift cluster on Azure.

2. **Configure Kubernetes provider for Pulumi**: After the cluster is available, configure Pulumi to use the Kubernetes provider that will interact with the OpenShift cluster. This involves setting up KubeConfig.

3. **Deploy the spring-boot-demo helm chart**: Once the Kubernetes provider is set up, you can use Pulumi's `kubernetes.helm.v3.Chart` resource to deploy the helm chart to the Openshift Service.

Below is a Pulumi TypeScript program that demonstrates these steps. Please note that the program assumes you have the necessary Azure credentials and Pulumi configuration to create and manage Azure resources.

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

// Step 1: Provision an Azure Red Hat OpenShift cluster
const openshiftCluster = new openshift.OpenShiftCluster("springBootDemoCluster", {
    // Your preferred location
    location: "East US",
    
    // Required: Details of your cluster
    clusterProfile: {
        domain: "example",
        pullSecret: "", // Provide the pull secret obtained from Red Hat OpenShift
        resourceGroupId: "", // Provide the resource group ID where the cluster should be deployed
    },
    // Define master and worker node profiles according to your needs
    masterProfile: {
        vmSize: "Standard_D4s_v3",
        subnetId: "/subscriptions/{sub-id}/resourceGroups/{rg}/providers/Microsoft.Network/virtualNetworks/{vnet}/subnets/{subnet}", // Provide the subnet ID
    },
    workerProfiles: [{
        name: "worker",
        count: 3,
        vmSize: "Standard_D4s_v3",
        subnetId: "/subscriptions/{sub-id}/resourceGroups/{rg}/providers/Microsoft.Network/virtualNetworks/{vnet}/subnets/{subnet}", // Provide the subnet ID
    }],
    // Additional configurations can be set here
});

// Step 2: Configure the KubeConfig
const openshiftKubeConfig = pulumi.all([openshiftCluster.name, openshiftCluster.resourceGroupName]).apply(([name, rg]) => {
    return openshift.getOpenShiftCluster({
        clusterName: name,
        resourceGroupName: rg,
    });
});

// Use the obtained KubeConfig to configure Kubernetes provider
const k8sProvider = new k8s.Provider("openshiftK8s", {
    kubeconfig: openshiftKubeConfig.kubeconfig,
});

// Step 3: Deploy the spring-boot-demo helm chart
const springBootDemoChart = new k8s.helm.v3.Chart("spring-boot-demo", {
    repo: "your_repo", // Replace with the Helm repository where the spring-boot-demo chart is located
    chart: "spring-boot-demo",
    version: "1.0.0", // Replace with the chart version you intend to deploy
    // Here you can provide the values to customize the chart deployment
    values: {
        service: {
            type: "LoadBalancer",
        },
        // Additional values can be set here
    },
}, { provider: k8sProvider });

// Export the URL for the load balancer
export const springBootDemoEndpoint = springBootDemoChart.getResourceProperty("v1/Service", "spring-boot-demo", "status").apply(status => status.loadBalancer.ingress[0].ip);
```

This program will create a new Azure Red Hat OpenShift cluster, configure the Kubernetes provider to interact with it, and then deploy the `spring-boot-demo` Helm chart to that cluster. Ensure to replace placeholder values like `{sub-id}`, `{rg}`, `{vnet}`, and `{subnet}` with actual values from your Azure setup, and provide a valid OpenShift pull secret. Similarly, replace `"your_repo"` with the actual Helm repository URL where the `spring-boot-demo` chart is hosted and adjust the `values` field according to the specific configurations that are required for your helm chart.

After the deployment, you'll have the external IP address of the service exposed by the `spring-boot-demo` application, which you can use to access the application.