Cluster Autoscaler for Hetzner Cloud

Mon, 01 Jan 0001 00:00:00 +0000

This guide explains how to configure cluster-autoscaler for automatic node scaling in Hetzner Cloud with Talos Linux.

Prerequisites

Hetzner Cloud account with API token
hcloud CLI installed
Existing Talos Kubernetes cluster
Networking Mesh and Local CCM configured

Step 1: Create Talos Image in Hetzner Cloud

Hetzner doesn’t support direct image uploads, so we need to create a snapshot via a temporary server.

1.1 Generate Schematic ID

Create a schematic at factory.talos.dev with required extensions:

Cluster Autoscaler for Azure

Mon, 01 Jan 0001 00:00:00 +0000

This guide explains how to configure cluster-autoscaler for automatic node scaling in Azure with Talos Linux.

Prerequisites

Azure subscription with Contributor Service Principal
az CLI installed
Existing Talos Kubernetes cluster
Networking Mesh and Local CCM configured

Step 1: Create Azure Infrastructure

az login --service-principal \
 --username "<APP_ID>" \
 --password "<PASSWORD>" \
 --tenant "<TENANT_ID>"

1.2 Create Resource Group

az group create \
 --name <resource-group> \
 --location <location>

1.3 Create VNet and Subnet

az network vnet create \
 --resource-group <resource-group> \
 --name cozystack-vnet \
 --address-prefix 10.2.0.0/16 \
 --subnet-name workers \
 --subnet-prefix 10.2.0.0/24 \
 --location <location>

1.4 Create Network Security Group

az network nsg create \
 --resource-group <resource-group> \
 --name cozystack-nsg \
 --location <location>

# Allow WireGuard
az network nsg rule create \
 --resource-group <resource-group> \
 --nsg-name cozystack-nsg \
 --name AllowWireGuard \
 --priority 100 \
 --direction Inbound \
 --access Allow \
 --protocol Udp \
 --destination-port-ranges 51820

# Allow Talos API
az network nsg rule create \
 --resource-group <resource-group> \
 --nsg-name cozystack-nsg \
 --name AllowTalosAPI \
 --priority 110 \
 --direction Inbound \
 --access Allow \
 --protocol Tcp \
 --destination-port-ranges 50000

# Associate NSG with subnet
az network vnet subnet update \
 --resource-group <resource-group> \
 --vnet-name cozystack-vnet \
 --name workers \
 --network-security-group cozystack-nsg

Step 2: Create Talos Image

2.1 Generate Schematic ID

Create a schematic at factory.talos.dev with required extensions:

Cluster Autoscaling on Cozystack

Cluster Autoscaler for Hetzner Cloud

Prerequisites

Step 1: Create Talos Image in Hetzner Cloud

1.1 Generate Schematic ID

Cluster Autoscaler for Azure

Prerequisites

Step 1: Create Azure Infrastructure

1.1 Login with Service Principal

1.2 Create Resource Group

1.3 Create VNet and Subnet

1.4 Create Network Security Group

Step 2: Create Talos Image

2.1 Generate Schematic ID