Deploy the kubeseal-webgui helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the `kubeseal-webgui` Helm chart on Azure Kubernetes Service (AKS), you'll need to complete a few steps in Pulumi:

1. Set up an Azure Kubernetes Service (AKS) cluster, where your Helm chart will be deployed.
2. Deploy the `kubeseal-webgui` Helm chart using the Pulumi Kubernetes provider.

The following Pulumi program in TypeScript will guide you through setting up AKS and deploying the Helm chart. Please note that I've simplified some parts of the resource definitions for brevity and clarity. You may need to adjust certain parameters like the resource group, AKS cluster settings, and Helm chart version as per your specific requirements.

Firstly, we install the necessary Pulumi packages:
```bash
npm install @pulumi/pulumi
npm install @pulumi/azure-native
npm install @pulumi/kubernetes
```

Now, let us proceed with the code:

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

// Create a Resource Group if you don't have one already
const resourceGroup = new azureNative.resources.ResourceGroup("myResourceGroup");

// Create an AKS cluster
const aksCluster = new azureNative.containerservice.ManagedCluster("myAKSCluster", {
    resourceGroupName: resourceGroup.name,
    // Other necessary AKS configurations go here
    agentPoolProfiles: [{
        count: 3,
        vmSize: "Standard_DS2_v2",
        name: "agentpool",
        osType: "Linux",
        type: "VirtualMachineScaleSets"
    }],
    dnsPrefix: "myakscluster",
});

// Export the KubeConfig
export const kubeConfig = pulumi.
    all([aksCluster.name, resourceGroup.name]).
    apply(([clusterName, rgName]) => {
        return azureNative.containerservice.listManagedClusterUserCredentials({
            resourceName: clusterName,
            resourceGroupName: rgName,
        });
    }).
    apply(creds => {
        const encoded = creds.kubeconfigs[0].value;
        return Buffer.from(encoded, 'base64').toString();
    });

// Use the KubeConfig to connect to the Kubernetes cluster
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig: kubeConfig,
});

// Deploy the Helm chart for kubeseal-webgui
const chart = new k8s.helm.v3.Chart("kubeseal-webgui", {
    chart: "kubeseal-webgui",
    version: "0.1.0", // Specify the version of the chart if needed
    namespace: "default", // Deploy in the 'default' namespace, change as per your needs
    fetchOpts: {
        repo: "https://yourhelmchartrepo/" // Specify the helm chart repository URL
    },
}, { provider: k8sProvider });

// Export the public IP to access the kubeseal-webgui
export const webguiServiceIP = chart.getResourceProperty("v1/Service", "kubeseal-webgui", "status")
    .apply(status => status.loadBalancer.ingress[0].ip);
```

In the program above:

- We import the necessary Pulumi modules.
  
- We create a new resource group for our AKS cluster using the `azureNative` provider.

- We define an AKS cluster with a default node pool configuration, but you may want to customize the VM size, node count, and other settings.

- We then export the KubeConfig of the AKS cluster, which contains the credentials required to connect to your Kubernetes cluster.

- With the KubeConfig, we set up a Pulumi Kubernetes provider which is necessary for deploying resources to your AKS cluster.

- A Helm `Chart` resource is defined using the `kubernetes` provider. This resource points to the `kubeseal-webgui` Helm chart. Replace the `version` and `repo` fields with the correct values for your desired Helm chart version and chart repository.

- Finally, we export the IP address of the 'kubeseal-webgui' service so you can access it from your browser.

To apply this Pulumi program:

1. Save the code to a file with a `.ts` extension, for example, `deployKubeseal.ts`.
2. Run `pulumi stack init` to create a new stack.
3. Run `pulumi up` to execute the code and create the resources in Azure.

You'll need to have Pulumi installed and Azure CLI configured on your machine. To view the web GUI, you’ll need to navigate to the exported IP address. Keep in mind that it may take a few minutes for external IP to become available after deployment.