Summary: Azure

Stumbling into Azure Part II: Setting up a private ARO cluster

October 29, 2021 -

Toni Schmidbauer ( Lastmod: 2024-05-08 ) - 2 min read

In Part I of our blog post we covered setting up required resources in Azure. Now we are finally going to set up a private cluster. Private

As review from Part I here is our planned setup, this time including the ARO cluster.

Azure Setup

The diagram below depicts our planned setup:

/azure/images/azure_network_setup_with_aro.png

On the right hand side can see the resources required for our lab:

a virtual network (vnet 192.168.128.0/19). This vnet will be split into 3 separate subnets
a master subnet (192.168.129.0/24) holding the ARO control plane nodes
a node subnet (192.168.130.0/24) holding ARO worker nodes

and finally a subnet call GatewaySubnet where we are going to deploy our Azure VPN gateway (called a vnet-gateway)

The subnet where the Azure VPN gateway is located needs to have the name GatewaySubnet. Otherwise creating the Azure VPN gateway will fail.

Stumbling into Azure Part I: Building a site-to-site VPN tunnel for testing

October 16, 2021 -

Toni Schmidbauer ( Lastmod: 2024-05-08 ) - 3 min read

So we want to play with ARO (Azure Red Hat OpenShift) private clusters. A private cluster is not reachable from the internet (surprise) and is only reachable via a VPN tunnel from other networks.

This blog post describes how we created a site-to-site VPN between a Hetzner dedicated server running multiple VM's via libvirt and Azure.

An upcoming blog post is going to cover the setup of the private ARO cluster.