Deploy the zotero helm chart on Azure Kubernetes Service (AKS)

If you want to deploy the Zotero Helm chart on Azure Kubernetes Service (AKS), you'll need to accomplish a few high-level steps:

1. Create an AKS cluster: Use Azure's Kubernetes service to create and manage a Kubernetes cluster.
2. Install the Helm chart: Once the cluster is up and running, you can deploy applications on top of it using Helm charts. Helm is a package manager for Kubernetes that simplifies the deployment of applications.

In Pulumi, you can achieve this using the azure-native and kubernetes packages.

Below is a Pulumi program written in TypeScript that performs the following steps:

• Provision an AKS cluster using the azure-native.containerservice.KubernetesCluster class.
• Install the Zotero Helm chart to the AKS cluster using the kubernetes.helm.v3.Chart class.

The Zotero Helm chart is not included in the Pulumi Registry Results, so we will have to use a generic Helm Chart installation method. Note that to install Helm charts, the Helm CLI needs to be installed on the machine where you are running Pulumi, or you need to configure Pulumi to fetch remote charts if you have information on where the Zotero Helm Chart repository is located.

Here's how you would write the program:

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

// Step 1: Create the AKS cluster
const resourceGroup = new azure.core.ResourceGroup("my-resource-group");

const adApp = new azuread.Application("my-aks-app");
const adSp = new azuread.ServicePrincipal("my-aks-sp", {applicationId: adApp.applicationId});
const adSpPassword = new azuread.ServicePrincipalPassword("my-aks-sp-password", {
    servicePrincipalId: adSp.id,
    endDate: "2099-01-01T00:00:00Z",
});

const k8sCluster = new azure.containerservice.KubernetesCluster("my-aks-cluster", {
    resourceGroupName: resourceGroup.name,
    location: resourceGroup.location,
    agentPoolProfiles: [{
        count: 1,
        maxPods: 110,
        mode: "System",
        name: "agentpool",
        osDiskSizeGb: 30,
        osType: "Linux",
        vmSize: "Standard_DS2_v2",
    }],
    dnsPrefix: "myakscluster", 
    linuxProfile: {
        adminUsername: "adminuser",
        sshKey: {
            keyData: "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQD3d...",
        },
    },
    servicePrincipal: {
        clientId: adApp.applicationId,
        clientSecret: adSpPassword.value,
    },
    kubernetesVersion: "1.16.15",
});

// Output the kubeconfig
export const kubeconfig = pulumi.
    all([k8sCluster.name, resourceGroup.name, adSpPassword.value]).
    apply(([clusterName, rgName, password]) => {
        const creds = pulumi.output(azure.containerservice.
            listManagedClusterUserCredentials({
                resourceGroupName: rgName,
                resourceName: clusterName,
        }));
        return creds.kubeconfigs[0].value.apply(kc => Buffer.from(kc, "base64").toString());
    });

// Step 2: Install Zotero Helm Chart
const zotero = new k8s.helm.v3.Chart("zotero", {
    chart: "zotero",
    version: "x.y.z",  // Replace with the specific version you wish to deploy
    fetchOpts: {
        // You might need to provide repository URL or other options to fetch the chart
        repo: "https://zotero-charts-repo", // Replace with Zotero's Helm chart repository URL
    },
}, { provider: new k8s.Provider("k8s-provider", { kubeconfig }) });

// Export the Cluster name and the Helm release name 
export const clusterName = k8sCluster.name;
export const zoteroReleaseName = zotero.releaseName;

Explanation:

• We start by importing the required Pulumi packages.
• We create an Azure resource group to contain our AKS cluster resources.
• We set up an Azure AD application and service principal for AKS.
• We create a new AKS cluster with the azure.containerservice.KubernetesCluster class, providing details like the agent pool profile, which dictates the number of nodes, the size of disk, the OS type, and the VM size.
• After the AKS cluster is created, we extract the kubeconfig, which is needed to interact with the Kubernetes cluster.
• Then, we define a Helm chart resource using the k8s.helm.v3.Chart class, specifying the name of the chart and the repository URL. You must provide the version number and the correct repository URL for the Zotero chart.
• Finally, we export the name of the AKS cluster and the name of the Helm release.

Note: Before running this code, you will need to replace the placeholder values, especially ssh-rsa AAAAB3..., with your actual SSH public key for the AKS nodes, and provide the correct values for the Helm chart version and repository URL.

Remember that running Pulumi programs will indeed provision resources in the cloud and incur costs. Always review the documentation and understand the resources and their costs before you execute the deployments.

Additionally, Pulumi requires you to log in to run deployments, so make sure you have performed pulumi login and set up Azure credentials on your machine.