Deploy the keycloak-resources deployment for keycloak-operator helm chart on Azure Kubernetes Service (AKS)

Question

Pulumi · Accepted Answer

To deploy the `keycloak-resources` deployment for the keycloak-operator Helm chart on Azure Kubernetes Service (AKS), we need to accomplish a few tasks. Here's a step-by-step explanation of what we need to do:

1. **Create an Azure Kubernetes Service (AKS) cluster:** This will be our managed Kubernetes environment where we will deploy the Keycloak services.
2. **Install the Helm chart for the Keycloak Operator:** Helm charts are packages for Kubernetes resources. The Keycloak Operator Helm chart will create the necessary Kubernetes resources to manage Keycloak instances inside our AKS cluster.
3. **Create Keycloak resources:** Once the Keycloak Operator is installed, we will deploy Keycloak resources which will be managed by the operator.

For step 1, we'll use the `azure-native` Pulumi provider to create the AKS cluster. This provider allows us to work directly with Azure resources in a native Pulumi way.

For steps 2 and 3, we'll use the `kubernetes` Pulumi provider to install a Helm chart and deploy resources. The `kubernetes` provider integrates with the Kubernetes API server and is responsible for managing the lifecycle of Kubernetes resources.

Below is a complete TypeScript program that sets up an AKS cluster, installs the Keycloak Operator Helm chart, and deploys the `keycloak-resources` as specified in your request.

Please ensure you have Pulumi installed and set up with your Azure credentials before running this code, as we will not be using specific Pulumi configuration settings or secrets for the AKS cluster creation.

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

// Step 1: Create an Azure Kubernetes Service (AKS) cluster
const resourceGroupName = new azure_native.resources.ResourceGroup("myResourceGroup");

const aksCluster = new azure_native.containerservice.ManagedCluster("myAksCluster", {
    resourceGroupName: resourceGroupName.name,
    enableRBAC: true,
    kubernetesVersion: "1.20.7", // Replace with your desired version
    agentPoolProfiles: [{
        count: 2, // Number of nodes in the node pool
        maxPods: 110, // Maximum pods that can run on a node
        mode: "System", 
        name: "agentpool", 
        osDiskSizeGB: 30,
        osType: "Linux",
        vmSize: "Standard_DS2_v2", // Replace with your desired VM size for nodes
    }],
    dnsPrefix: "myK8sCluster", // Replace with your DNS prefix
});

// Step 2: Install the Keycloak Operator Helm chart
const k8sProvider = new k8s.Provider("k8sProvider", {
    kubeconfig: aksCluster.kubeConfigRaw,
});

const keycloakOperatorChart = new k8s.helm.v3.Chart("keycloak-operator", {
    chart: "keycloak-operator",
    version: "15.0.2", // Replace with the desired chart version
    fetchOpts: {
        repo: "https://codecentric.github.io/helm-charts", // Keycloak Operator Helm chart repository
    },
}, { provider: k8sProvider });

// Step 3: Create Keycloak resources deployment
const keycloakResources = new k8s.yaml.ConfigGroup("keycloak-resources", {
    files: "keycloak-resources.yaml", // A YAML manifest with the Keycloak resources configuration
}, { provider: k8sProvider });

export const kubeconfig = aksCluster.kubeConfigRaw;

/*
Before running this Pulumi code, make sure you have created the 'keycloak-resources.yaml' file with the desired Keycloak resources configuration.

To execute the Pulumi code, follow these steps:
1. Save the TypeScript code in a file named `index.ts`.
2. Run `pulumi up` command in your terminal from the same directory where your `index.ts` file is located.
3. Pulumi CLI will show the preview of the resources that will be deployed. If everything looks good, confirm the deployment.

Remember to check the official documentation for the Azure-native provider and Kubernetes provider to better understand the resources and properties being used:
- AKS: https://www.pulumi.com/docs/reference/pkg/azure-native/containerservice/managedcluster/
- Helm: https://www.pulumi.com/docs/reference/pkg/kubernetes/helm/v3/chart/
- YAML: https://www.pulumi.com/docs/reference/pkg/kubernetes/yaml/configgroup/
*/

```

Make sure to replace `"keycloak-resources.yaml"` with the path to your actual Keycloak resources configuration file. This file should contain the resource definitions for Keycloak instances that you would like the Keycloak Operator to manage.

Be sure to customize the properties such as `kubernetesVersion` and `vmSize` in the AKS creation to match your requirements or preferences.

To run this program, save the code in a file named `index.ts` in a directory. Then, from the command line in the same directory, execute `pulumi up` to create the resources. The `pulumi up` action will prompt you to confirm before creating any resources on Azure.

This deployment will take a few minutes to complete as AKS clusters take some time to provision. Remember to review the AKS cluster pricing and ensure your Azure subscription has enough quota for the resources you are provisioning.