How Do I Use Keycloak With Azure Virtual Machines?

Introduction

This guide is designed to help you deploy Keycloak on Azure Virtual Machines, providing a comprehensive walkthrough of the process. Keycloak is an open-source Identity and Access Management solution that can be deployed on cloud infrastructure to manage authentication and authorization. This guide will cover the creation of necessary Azure resources, including a virtual network, storage account, and virtual machines, culminating in the setup of Keycloak on these VMs.

Deployment Process

The deployment process involves the following steps:

Create an Azure Resource Group: This acts as a container for all the resources you will create.
Set Up a Virtual Network: Establish a network that allows resources to communicate securely.
Define a Subnet: Segment the virtual network for better organization and security.
Configure a Network Security Group: Manage and control network traffic to and from Azure resources.
Allocate a Public IP Address: Enable internet connectivity for your virtual machine.
Provision a Network Interface: Connect the VM to the network, associating it with the public IP.
Create a Virtual Machine: Deploy an Azure VM with the necessary configurations to host Keycloak.
Set Up a Storage Account: Provide persistent storage for Keycloak data.

The following Pulumi program defines and provisions these resources.

import * as pulumi from "@pulumi/pulumi";
import * as azure from "@pulumi/azure";

const example = new azure.core.ResourceGroup("example", {
    name: "keycloak-rg",
    location: "West Europe",
});
const exampleVirtualNetwork = new azure.network.VirtualNetwork("example", {
    name: "keycloak-network",
    addressSpaces: ["10.0.0.0/16"],
    location: example.location,
    resourceGroupName: example.name,
});
const exampleSubnet = new azure.network.Subnet("example", {
    name: "keycloak-subnet",
    resourceGroupName: example.name,
    virtualNetworkName: exampleVirtualNetwork.name,
    addressPrefixes: ["10.0.1.0/24"],
});
const exampleNetworkSecurityGroup = new azure.network.NetworkSecurityGroup("example", {
    name: "keycloak-nsg",
    location: example.location,
    resourceGroupName: example.name,
    securityRules: [
        {
            name: "Allow_SSH",
            priority: 1001,
            direction: "Inbound",
            access: "Allow",
            protocol: "Tcp",
            sourcePortRange: "*",
            destinationPortRange: "22",
            sourceAddressPrefix: "*",
            destinationAddressPrefix: "*",
        },
        {
            name: "Allow_HTTP",
            priority: 1002,
            direction: "Inbound",
            access: "Allow",
            protocol: "Tcp",
            sourcePortRange: "*",
            destinationPortRange: "80",
            sourceAddressPrefix: "*",
            destinationAddressPrefix: "*",
        },
        {
            name: "Allow_Keycloak",
            priority: 1003,
            direction: "Inbound",
            access: "Allow",
            protocol: "Tcp",
            sourcePortRange: "*",
            destinationPortRange: "8080",
            sourceAddressPrefix: "*",
            destinationAddressPrefix: "*",
        },
    ],
});
const examplePublicIp = new azure.network.PublicIp("example", {
    name: "keycloak-ip",
    location: example.location,
    resourceGroupName: example.name,
    allocationMethod: "Dynamic",
});
const exampleNetworkInterface = new azure.network.NetworkInterface("example", {
    name: "keycloak-nic",
    location: example.location,
    resourceGroupName: example.name,
    ipConfigurations: [{
        name: "internal",
        subnetId: exampleSubnet.id,
        privateIpAddressAllocation: "Dynamic",
        publicIpAddressId: examplePublicIp.id,
    }],
});
const exampleVirtualMachine = new azure.compute.VirtualMachine("example", {
    name: "keycloak-vm",
    location: example.location,
    resourceGroupName: example.name,
    networkInterfaceIds: [exampleNetworkInterface.id],
    vmSize: "Standard_DS1_v2",
    storageOsDisk: {
        name: "keycloak_os_disk",
        caching: "ReadWrite",
        createOption: "FromImage",
        managedDiskType: "Standard_LRS",
    },
    storageImageReference: {
        publisher: "Canonical",
        offer: "UbuntuServer",
        sku: "18.04-LTS",
        version: "latest",
    },
    osProfile: {
        computerName: "hostname",
        adminUsername: "adminuser",
        adminPassword: "ultra_secure_password123!",
    },
    osProfileLinuxConfig: {
        disablePasswordAuthentication: false,
    },
});
const exampleAccount = new azure.storage.Account("example", {
    name: "keycloakstorage",
    resourceGroupName: example.name,
    location: example.location,
    accountTier: "Standard",
    accountReplicationType: "LRS",
});
export const publicIp = examplePublicIp.ipAddress;

Key Points

Resource Group: Acts as a logical container for all Azure resources.
Virtual Network and Subnet: Ensure secure and organized network connectivity.
Network Security Group: Controls inbound and outbound traffic rules.
Public IP and Network Interface: Facilitate internet access and network connectivity for the VM.
Virtual Machine: Hosts Keycloak with required configurations.
Storage Account: Provides persistent storage for Keycloak data.

Conclusion

This step-by-step guide provided a detailed approach to deploying Keycloak on Azure Virtual Machines. By following the outlined steps, you can create network configurations and secure access through network security groups. Use the outputted IP address to access your Keycloak instance, ensuring a robust identity and access management solution on Azure.

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